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    "textoCompleto" => "<a name="sec0005" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Introduction</span><p class="elsevierStylePara">Asthma is a global respiratory health problem affecting 1-18&#37; of the population in different countries&#46;<a href="&#35;bib1" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">1</span></a> According to the Global Initiative for Asthma &#40;GINA&#41;&#44; the levels of asthma symptom control can be divided into controlled&#44; partially controlled and uncontrolled asthma forms&#46;<a href="&#35;bib1" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">1</span></a> Intolerance to non-steroidal anti-inflammatory drugs &#40;NSAIDs&#41; can be detected among 13&#8211;21&#37; of the asthmatics&#46;<a href="&#35;bib2" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">2</span></a><span class="elsevierStyleSup">&#44; </span><a href="&#35;bib3" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">3</span></a> For the asthmatics with nasal polyps &#40;NP&#41;&#44; the incidence of NSAIDs intolerance increases to 30&#37;&#46;<a href="&#35;bib4" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">4</span></a> This association has been termed as &#8220;aspirin triad&#8221;&#44; &#8220;aspirin-exacerbated respiratory disease&#8221; &#40;AERD&#41; or &#8220;NSAIDs hypersensitivity&#8221;&#46;<a href="&#35;bib5" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">5</span></a><span class="elsevierStyleSup">&#44; </span><a href="&#35;bib6" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">6</span></a> The pathogenesis of the AERD is based on a shift from eicosanoids to leukotrienes&#46;<a href="&#35;bib7" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">7</span></a> Depending in its severity&#44; asthma can be treated with beta-2 mimetics&#44; corticosteroids&#44; leukotriene receptor antagonists&#44; theophylline or anti-IgE antibodies&#46;<a href="&#35;bib1" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">1</span></a> A further therapeutic option for asthmatics and NSAIDs hypersensitivity is the aspirin desensitization&#44;<a href="&#35;bib8" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">8</span></a> where the patient is gradually introduced step by step to aspirin&#44; and a daily maintenance dose is determined&#46; The underlying mechanism of aspirin desensitization has until today not yet been completely clarified&#46; Interestingly&#44; following desensitization&#44; there is an increase in the prostaglandin PGE<span class="elsevierStyleInf">2</span>&#47;leukotriene index in patients&#8217; blood&#46;<a href="&#35;bib9" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">9</span></a> To the best of our knowledge&#44; clinical effects of aspirin desensitization in patients with a poorly controlled asthma and NSAIDs hypersensitivity have not yet been reported&#46; For this reason&#44; the aim of our study was to investigate the outcome of aspirin desensitization in patients with NSAIDs hypersensitivity and a poorly controlled asthma&#46; We performed comparative analyses using the data obtained from the patients with controlled asthma and NSAIDs hypersensitivity who underwent aspirin therapy&#46;</p><a name="sec0010" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Methods</span><p class="elsevierStylePara">Patients routinely desensitized against at least 18 months in the Department of Pulmonology &#40;Treuenbrietzen&#44; Germany&#41; or the ORL Department of the Charit&#233; University Hospital &#40;Berlin&#41; between 2009 and 2013 were included in this retrospective study&#46; All patients enrolled in the study gave their informed consent&#46; The inclusion criteria were NSAIDs sensitivity&#44; nasal polyps&#44; controlled or poorly controlled asthma&#46;</p><p class="elsevierStylePara">Twelve patients &#40;mean age 48 y&#44; range from 32 y to 73 y&#44; 4 men&#44; 8 women&#41; with poorly controlled asthma and 20 patients with controlled asthma &#40;mean age 57&#46;75 y&#44; range from 44 y to 67 y&#44; 8 men&#44; 12 women&#41; were included&#46; The &#8220;poorly controlled asthma&#8221;-group consisted of ten patients with uncontrolled asthma and two patients with partially controlled asthma&#46; Aspirin was recommended to be taken by both groups&#44; in order to improve the nasal and asthma symptoms&#46;</p><p class="elsevierStylePara">NSAIDs sensitivity was confirmed by oral aspirin provocation test&#59; a positive reaction was a decline of forced expiratory volume in 1&#160;s &#40;FEV1&#41;&#160;&#8805;&#160;20&#37; of baseline and profound rhinorrhea or nasal blockage&#46;<a href="&#35;bib10" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">10</span></a> The patients were stepwise desensitized to oral aspirin in the hospital with a final daily aspirin maintenance dosage of 500&#160;mg&#46; The following desensitization protocol was used&#58; day 1&#58; placebo&#47;placebo&#47;placebo&#59; day 2&#58; 1&#47;2&#47;4&#47;8&#59; day 3&#58; 10&#47;20&#47;40&#47;80&#59; day 4&#58; 100&#47;100&#47;150&#59; day 5&#58; 200&#47;200&#47;500&#59; from day 6&#58; 500&#160;mg orally administered aspirin&#46;</p><p class="elsevierStylePara">Following parameters were evaluated&#58;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Levels of asthma symptom control</span>&#58; Assessment of symptom control was done by strictly following the GINA criteria<a href="&#35;bib1" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">1</span></a> &#8211; see <a href="&#35;t0005" class="elsevierStyleCrossRefs">Table 1</a>&#46; Following groups of patients were identified&#58;</p><ul><li><p class="elsevierStylePara">1&#46; Controlled or stable asthma group&#58; well controlled asthma&#59;</p></li><li><p class="elsevierStylePara">2&#46; Poorly controlled or instable asthma group&#58; partially controlled asthma&#47;uncontrolled asthma&#46;</p></li></ul><p class="elsevierStylePara">Table 1&#46; GINA assessment of asthma symptom control&#46;</p><a name="t0005" class="elsevierStyleCrossRefs"></a><p class="elsevierStylePara"></p><table><tr align="left"><td colspan="3">Asthma symptom control</td><td colspan="3">Levels of asthma symptom control</td></tr><tr align="left"><td colspan="3">In the past 4 weeks&#44; has the patient had</td><td>Well controlled</td><td>Partially controlled</td><td>Uncontrolled</td></tr><tr align="left"><td>Day time asthma<br></br>Symptoms more than twice&#47;week</td><td>Yes&#9633;</td><td>No&#9633;</td><td rowspan="4">None of these</td><td rowspan="4">1&#8211;2 of these</td><td rowspan="4">3&#8211;4 of these</td></tr><tr align="left"><td>Any night waking due to asthma&#63;</td><td>Yes&#9633;</td><td>No&#9633;</td></tr><tr align="left"><td>Reliever needed for symptoms more than twice&#47;week</td><td>Yes&#9633;</td><td>No&#9633;</td></tr><tr align="left"><td>Any activity limitation due to asthma&#63;</td><td>Yes&#9633;</td><td>No&#9633;</td></tr></table><p class="elsevierStylePara"><span class="elsevierStyleBold">Pulmonary function values</span>&#58; The peak expiratory flow &#40;PEF&#41; variability was measured before aspirin desensitization&#46; The forced expiratory volume in 1&#160;s &#40;FEV1&#41; and vital capacity &#40;VC&#41; were measured by spirometry before and following aspirin treatment&#46;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Use of asthma medication</span>&#58; The daily use and dosages of the asthma medication were documented&#46; The daily dosages of inhaled corticoids &#40;ICS low&#47;medium&#47;high dosage&#41; and the asthma medication scores were obtained in accordance to GINA criteria&#46;<a href="&#35;bib1" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">1</span></a> Prednisolone-dependent patients were separated from the dual GINA classification of severity&#46; The medication was not changed 6 months prior to desensitization&#46;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Nasal endoscopy</span>&#58; The Davos-staging of nasal polyps &#40;NP&#41; size was performed &#40;0&#58; no NP&#59; 1&#58; NP in middle meatus&#59; 2&#58; NP beyond middle meatus&#59; 3&#58; obstructing NP&#41;&#46;<a href="&#35;bib11" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">11</span></a></p><p class="elsevierStylePara"><span class="elsevierStyleBold">Sense of smell</span>&#58; The subjective olfactory function was semi-quantitatively documented &#40;0&#58; no sense of smell&#59; 1&#58; mild sense of smell&#59; 2&#58; moderate sense of smell&#59; 3&#58; excellent sense of smell&#41;&#46;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Follow-up</span>&#58; The patients were routinely examined before aspirin therapy&#44; 6&#44; 12 and 18 months &#40;visit 1&#44; 2 and 3&#41; following aspirin therapy&#46; Pulmonary and nasal parameters were documented&#46;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Adverse events</span>&#58; Adverse events during aspirin induction and maintenance therapy were documented&#46;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Statistics</span>&#58; A nonparametric test of independent samples &#40;Mann&#8211;Whitney <span class="elsevierStyleItalic">U</span> test&#41; was used to test the spirometric parameters FEV-1 and VC&#44; asthma medication and the nasal polyps between patient groups&#46; The levels of asthma control and smell were tested with the chi-squared test &#40;<span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;05&#41;&#46;</p><a name="sec0015" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Results</span><a name="sec0020" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Patients&#8217; characterization prior to aspirin desensitization therapy</span><p class="elsevierStylePara">The mean FEV1-&#44; VC values were significantly lower and PEF variability values higher in the poorly controlled asthma patients &#40;<span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;01&#41;&#46; The nasal polyps size did not differ significantly &#40;0&#46;55&#47;0&#46;95&#59; <span class="elsevierStyleItalic">p</span>&#160;&#61;&#160;0&#46;21&#41;&#46; The asthma medication score in poorly controlled asthma patients was significantly higher than in the controlled group &#40;4&#46;25&#47;2&#46;20&#44; <span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;01&#41;&#46;</p><a name="sec0025" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Patients with poorly controlled asthma following aspirin desensitization therapy</span><p class="elsevierStylePara">In relation to the symptoms of the asthma control levels four patients &#40;33&#46;3&#37;&#41; still had uncontrolled asthma and eight patients controlled asthma after 6 months &#40;67&#37;&#41;&#46; After 12 months of aspirin therapy 11 patients had controlled asthma &#40;91&#46;7&#37;&#41; and one patient with uncontrolled asthma&#44; which finally improved to partially controlled asthma after 18 months&#46; The asthma control level of all visits following aspirin therapy improved significantly when compared to the baseline&#44; <span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;01&#46; The mean FEV1 values increased from the initial 67&#46;4&#37; to 82&#46;4&#37; after 12 months &#40;<span class="elsevierStyleItalic">p</span> 0&#46;03&#41;&#46; The VC values increased from the initial 83&#46;9&#37; to 87&#46;8&#37; &#40;<span class="elsevierStyleItalic">p</span> 1&#46;00&#41;&#44; the size of nasal polyps from initial 0&#46;33 to 0&#46;50 &#40;<span class="elsevierStyleItalic">p</span> 0&#46;56&#41;&#46; The sense of smell improved significantly after 18 months from 1&#46;85 to 2&#46;25 &#40;<span class="elsevierStyleItalic">p</span> 0&#46;02&#41; &#40;<a href="&#35;f0005" class="elsevierStyleCrossRefs">Figure 1</a>&#44; <a href="&#35;f0010" class="elsevierStyleCrossRefs">Figure 2</a>&#41;&#46; The asthma medication score declined from 4&#46;2 to 3&#46;9 &#40;<span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;18&#41;&#46;</p><a name="f0005" class="elsevierStyleCrossRefs"></a><p class="elsevierStylePara"><img src="320v21n06-90445969fig1.jpg" alt="Pulmonary function values before and after acetylsalicylic acid &#40;ASA&#41; desensitization therapy &#40;&#40;a&#41; Vital capacity &#40;VC&#41; values&#59; &#40;b&#41; forced expiratory volume in 1&#160;s &#40;FEV1&#41; values&#59; &#40;c&#41; asthma control levels &#40;1&#58; uncontrolled&#59; 2&#58; partial controlled&#59; 3&#58; controlled&#41; and &#40;d&#41; FEV1 values of prednisolone dependent patients&#41;&#46;"></img></p><p class="elsevierStylePara">Figure 1&#46; Pulmonary function values before and after acetylsalicylic acid &#40;ASA&#41; desensitization therapy &#40;&#40;a&#41; Vital capacity &#40;VC&#41; values&#59; &#40;b&#41; forced expiratory volume in 1&#160;s &#40;FEV1&#41; values&#59; &#40;c&#41; asthma control levels &#40;1&#58; uncontrolled&#59; 2&#58; partial controlled&#59; 3&#58; controlled&#41; and &#40;d&#41; FEV1 values of prednisolone dependent patients&#41;&#46;</p><a name="f0010" class="elsevierStyleCrossRefs"></a><p class="elsevierStylePara"><img src="320v21n06-90445969fig2.jpg" alt="Nasal parameters before and after acetylsalicylic acid &#40;ASA&#41; desensitization therapy &#40;&#40;a&#41; Nasal polyps and &#40;b&#41; smell ability&#41;&#46;"></img></p><p class="elsevierStylePara">Figure 2&#46; Nasal parameters before and after acetylsalicylic acid &#40;ASA&#41; desensitization therapy &#40;&#40;a&#41; Nasal polyps and &#40;b&#41; smell ability&#41;&#46;</p><a name="sec0030" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Patients with controlled asthma following aspirin desensitization therapy</span><p class="elsevierStylePara">No patient developed uncontrolled asthma during the follow-up examination&#46; The mean FEV values were 92&#37; before and 92&#46;4&#37; following therapy&#44; the VC values 101&#46;6&#37; before and 96&#46;3&#37; following aspirin desensitization &#40;<span class="elsevierStyleItalic">p</span>&#160;&#8805;&#160;0&#46;50&#41;&#46; The nasal polyps scores decreased &#40;0&#46;95&#47;0&#46;65&#59; <span class="elsevierStyleItalic">p</span> 1&#46;00&#41;&#46; The sense of smell improved from 1&#46;50 to 2&#46;15 &#40;<span class="elsevierStyleItalic">p</span> 0&#46;16&#41;&#44; the sense of smell scores improved significantly after 12 months &#40;<span class="elsevierStyleItalic">p</span>&#160;&#61;&#160;0&#46;03&#41; &#40;<a href="&#35;f0005" class="elsevierStyleCrossRefs">Figure 1</a>&#44; <a href="&#35;f0010" class="elsevierStyleCrossRefs">Figure 2</a>&#41;&#46; The asthma medication level in this group was constant 2&#46;2 &#40;<span class="elsevierStyleItalic">p</span>&#160;&#61;&#160;1&#46;00&#41;&#46;</p><a name="sec0035" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Comparison of the poorly controlled and the controlled asthma patients following 18 months of aspirin therapy</span><p class="elsevierStylePara">After 18 months&#44; the FEV1 values and the size of nasal polyps did not differ significantly between the patient groups&#44; the VC values from the poorly controlled asthma group were significantly lower &#40;84&#46;4&#37;&#47;93&#46;5&#37;&#59; <span class="elsevierStyleItalic">p</span> 0&#46;03&#41;&#46; In addition&#44; the medication score was still significantly elevated in the poorly controlled asthma group &#40;<span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;01&#41;&#46;</p><a name="sec0070" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Examination of corticosteroid-dependent patients</span><a name="sec0075" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle"><span class="elsevierStyleItalic">Patient group with controlled asthma and oral prednisolone</span></span><p class="elsevierStylePara">One patient was on permanent oral 10&#160;mg prednisolone&#46; The mean FEV1 value decreased from initial 72&#37; to 69&#37;&#44; the nasal polyp size increased from 0 to 2 after 18 months aspirin therapy&#46;</p><a name="sec0080" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle"><span class="elsevierStyleItalic">Patient group with uncontrolled asthma and oral prednisolone</span></span><p class="elsevierStylePara">Prior to desensitization&#44; four patients were on permanent oral prednisolone &#40;mean dosage 13&#46;3&#160;mg&#41;&#46; After 18 months therapy one patient had partial controlled asthma and the other patients had controlled asthma&#46; The mean prednisolone dosage was reduced to 6&#46;5&#160;mg &#40;<a href="&#35;f0015" class="elsevierStyleCrossRefs">Figure 3</a>&#41;&#46; The mean FEV1 value increased from 60&#37; to 97&#37; and the nasal polyp size from 0 to 0&#46;67&#46;</p><a name="f0015" class="elsevierStyleCrossRefs"></a><p class="elsevierStylePara"><img src="320v21n06-90445969fig3.jpg" alt="Asthma medication parameters before and after acetylsalicylic acid &#40;ASA&#41; desensitization therapy &#40;&#40;a&#41; asthma medication of stable asthma patients&#59; &#40;b&#41; asthma medication of instable asthma patients and &#40;c&#41; corticoiddosages of asthma patients&#41;&#46;"></img></p><p class="elsevierStylePara">Figure 3&#46; Asthma medication parameters before and after acetylsalicylic acid &#40;ASA&#41; desensitization therapy &#40;&#40;a&#41; asthma medication of stable asthma patients&#59; &#40;b&#41; asthma medication of instable asthma patients and &#40;c&#41; corticoiddosages of asthma patients&#41;&#46;</p><a name="sec0085" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle"><span class="elsevierStyleItalic">Patient group with uncontrolled asthma and intravenous prednisolone</span></span><p class="elsevierStylePara">One patient had an asthma exacerbation before aspirin therapy and was treated with an intravenous prednisolone pulse therapy &#40;initial dosage 250&#160;mg&#41;&#46; The FEV1 was 46&#37; and the nasal polyp size 0&#46; After 18 months of aspirin desensitization&#44; the asthma was controlled&#44; FEV1 was 89&#37; and the nasal polyp size 0&#46; Parenteral prednisolone therapies were not repeated&#46;</p><a name="sec0040" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Adverse events</span><p class="elsevierStylePara">In three patients with poorly controlled asthma&#44; administration of aspirin induced recurrent asthma attacks&#46; These patients were initially administered 150&#160;mg or 300&#160;mg aspirin&#46; During the second desensitization appointment&#44; the dosage of aspirin has been increased to 500&#160;mg&#44; which induced no complications&#46; During the maintenance therapy&#44; no adverse events were observed&#46;</p><a name="sec0045" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Discussion</span><p class="elsevierStylePara">This retrospective study demonstrates for the first time that the patients with a NSAIDs-hypersensitivity and poorly controlled asthma can benefit from aspirin desensitization&#46; Following 6 months desensitization&#44; the asthma control levels significant improved&#46; In epidemiological studies&#44; the asthma severity in NDAIDs hypersensitive patients was higher and FEV1 values lower&#44; as compared to NSAIDs tolerant asthma patients&#46;<a href="&#35;bib12" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">12</span></a><span class="elsevierStyleSup">&#44; </span><a href="&#35;bib13" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">13</span></a> In both studies&#44; aspirin therapy was not performed&#46; The pathomechanism of the NSAIDs hypersensitivity is based on an altered cyclooxygenase metabolism&#46;<a href="&#35;bib14" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">14</span></a> The effect of aspirin desensitization is not yet really clear&#46; Under the daily aspirin administration&#44; a significant increase of the prostaglandin E<span class="elsevierStyleInf">2</span>&#47;leukotriene index<a href="&#35;bib9" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">9</span></a> appears to take place&#46;</p><p class="elsevierStylePara">According to GINA criteria&#44; the main goal of asthma management is to gain optimal asthma control&#46;<a href="&#35;bib1" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">1</span></a> Depending on the severity of the disease&#44; a multimodal therapy involving beta-2-mimetics&#44; corticosteroids&#44; leukotriene receptor antagonists&#44; and theophylline or anti-IgE antibodies is necessary&#46; Dahl&#233;n et al&#46; examined the effects of leukotriene receptor antagonist montelukast in NSAIDs-hypersensitive patients and found significantly improved FEV1 values&#46;<a href="&#35;bib15" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">15</span></a> Some patients in our study were treated with montelukast &#40;see <a href="&#35;f0015" class="elsevierStyleCrossRefs">Figure 3</a>&#41;&#46; Since no changes in medication were made&#44; our results appear to be aspirin-dependent&#46;</p><p class="elsevierStylePara">Berges Gimeno examined 126 patients &#40;daily 1300&#160;mg aspirin&#41; and registered over one year a significant reduction of nasal symptoms and a significant reduction in the number of short-term prednisolone treatments due to asthma&#46;<a href="&#35;bib8" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">8</span></a> In our study the oral prednisolone dosage was reduced from the original mean 13&#46;3&#160;mg to mean 6&#46;5&#160;mg in instable asthma patients&#46; One instable asthma patient who received intravenous prednisolone during asthma exacerbation prior to aspirin desensitization&#44; no longer needed corticosteroids after desensitization&#46; In the work of Stevenson&#44; inclusion criteria for the aspirin desensitization required a FEV1 variability of &#60;10&#37; and FEV1 values of &#62;60&#37;&#46;<a href="&#35;bib16" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">16</span></a> In our study&#44; we included patients with PEF variability greater than 10&#37; &#40;instable asthma 45&#37;&#59; stable asthma 14&#37;&#41;&#46; The mean FEV1 values in our sample were better than Stevensons&#8217; inclusion criteria &#40;instable asthma 67&#37;&#59; stable asthma 92&#37;&#41;&#46; We demonstrated that the FEV1 values significantly improved in the poorly controlled asthma patients following 12 months of aspirin therapy &#40;<span class="elsevierStyleItalic">p</span> 0&#46;03&#41;&#46; Also&#44; the FEV1 values of corticosteroid-dependent patients increased following aspirin therapy in our study &#40;<a href="&#35;f0015" class="elsevierStyleCrossRefs">Figure 3</a>&#41;&#46;</p><p class="elsevierStylePara">Havel et al&#46; found that 56 patients with NSAIDs hypersensitivity receiving aspirin for more than 18 months &#40;daily 500&#160;mg aspirin&#41; following nasal sinus surgery have improved in relation to asthma and nasal complaints&#46;<a href="&#35;bib17" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">17</span></a> The spirometric examinations were not done in follow-up&#46; A significantly lower nasal polyp size in patients receiving aspirin was observed&#44; as compared to the patients not receiving aspirin&#46; In our study&#44; the difference in nasal polyp size before and after aspirin therapy was not significant&#44; which may depend on our inclusion criteria&#44; where we did not compare nasal polyp groups with and without aspirin desensitization therapy and our patients were not all included immediately after surgery&#46;</p><p class="elsevierStylePara">Therapy of patients with therapy-resistant asthma and NSAIDs hypersensitivity requires a multimodal therapeutic concept according to pulmonary guidelines&#46; To the best of our knowledge&#44; the present study is the first retrospective examination of patients with NSAIDs hypersensitivity and poorly controlled asthma receiving aspirin therapy&#46; Concerning the asthma symptom control levels&#44; a significant improvement was observed &#40;<span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;01&#41;&#46; Although the patients certainly profit from the asthma medication administered according to GINA guidelines&#44; they can also profit from an add-on aspirin therapy&#46; Further studies with larger samples are necessary to further validate this therapy&#46; This exploratory retrospective analysis will be continued in order to compare NSAIDs sensitive asthmatic patients subjected to NSAIDs desensitization with the patients receiving standard therapy&#46;</p><a name="sec0050" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Ethical disclosures</span><a name="sec0090" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Protection of human and animal subjects</span><p class="elsevierStylePara">The authors declare that no experiments were performed on humans or animals for this study&#46;</p><a name="sec0055" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Confidentiality of data</span><p class="elsevierStylePara">The authors declare that they have followed the protocols of their work center on the publication of patient data&#46;</p><a name="sec0095" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Right to privacy and informed consent</span><p class="elsevierStylePara">The authors declare that no patient data appear in this article&#46;</p><a name="sec0060" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Author contribution</span><p class="elsevierStylePara">UFR&#58; conceived the study&#44; performed patients examinations&#44; collected and interpreted the data and wrote the manuscript&#46;</p><p class="elsevierStylePara">SM&#46;Z&#58; performed patients examinations and collected the data&#46;</p><p class="elsevierStylePara">AJ&#46;S&#58; interpreted the data and wrote the manuscript&#46;</p><p class="elsevierStylePara">HO&#58; supervised the project&#44; interpreted the data and wrote the manuscript&#46;</p><p class="elsevierStylePara">UR&#58; conceived the study&#44; performed patients examinations&#44; supervised the project and wrote the manuscript&#46;</p><a name="sec0065" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Conflict of interest</span><p class="elsevierStylePara">The authors have no conflicts of interest to declare&#46;</p><p class="elsevierStylePara">Received 24 September 2014 <br></br>Accepted 5 June 2015 </p><p class="elsevierStylePara">Corresponding author&#46; ulrike&#46;foerster&#64;charite&#46;de</p>"
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          "titulo" => "Keywords"
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          "palabras" => array:8 [
            0 => "Asthma"
            1 => "Levels of asthma symptom control"
            2 => "GINA"
            3 => "Uncontrolled asthma"
            4 => "Aspirin-exacerbated respiratory disease &#40;AERD&#41;"
            5 => "NSAIDs hypersensitivity"
            6 => "NSAIDs sensitive asthma"
            7 => "Nasal polyps"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Background</span><br/><p class="elsevierStylePara">According to the Global Initiative for Asthma &#40;GINA&#41;&#44; the levels of asthma symptom control can be divided into controlled&#44; partially controlled and uncontrolled asthma&#46; Optional therapy for non-steroidal anti-inflammatory drugs &#40;NSAIDs&#41;-hypersensitive asthmatics uses aspirin desensitization&#44; but until now&#44; this therapy is not established in difficult to treat cases&#46; The aim of this study was to evaluate the efficacy of aspirin desensitization in patients with poorly controlled asthma&#46;</p><span class="elsevierStyleSectionTitle">Methods</span><br/><p class="elsevierStylePara">Patients with poorly controlled asthma&#44; NDAIDs hypersensitivity and aspirin desensitization were included in the retrospective study&#46; The data were compared to those obtained from patients with controlled asthma and aspirin therapy&#46; Lung function&#44; levels of asthma symptom control&#44; asthma medication&#44; the size of nasal polyps &#40;NP&#41; and smell function were evaluated over 18 months&#46;</p><span class="elsevierStyleSectionTitle">Results</span><br/><p class="elsevierStylePara">Thirty-two patients were included in the study &#40;uncontrolled&#47;partially controlled asthma <span class="elsevierStyleItalic">n</span>&#160;&#61;&#160;12&#59; controlled asthma <span class="elsevierStyleItalic">n</span>&#160;&#61;&#160;20&#41;&#46; After 18 months of follow-up&#44; the patients with poorly controlled asthma had significantly increased forced expiratory volume in 1&#160;s &#40;FEV1&#41; values&#44; as compared to the baseline &#40;66&#8211;82&#37;&#59; <span class="elsevierStyleItalic">p</span>&#160;&#61;&#160;0&#46;02&#41;&#44; the levels of asthma control improved significantly &#40;<span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;01&#41;&#46; The asthma medication was reduced&#46; In the group of controlled asthma the FEV1 values did not increase significantly &#40;91&#46;9&#8211;92&#46;4&#37;&#59; <span class="elsevierStyleItalic">p</span>&#160;&#62;&#160;0&#46;05&#41; and the asthma medication was constant&#46; In relation to nasal parameters the sense of smell improved significantly in both groups&#44; NP-scores did not differ significantly&#46;</p><span class="elsevierStyleSectionTitle">Conclusions</span><br/><p class="elsevierStylePara">Patients with a poorly controlled asthma and NSAIDs hypersensitivity profit from an add-on aspirin therapy&#46;</p>"
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Long-term clinical effects of aspirin-desensitization therapy among patients with poorly controlled asthma and non-steroidal anti-inflammatory drug hypersensitivity: An exploratory study
U.. Förster-Ruhrmanna,
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ulrike.foerster@charite.de

Corresponding author. ulrike.foerster@charite.de
, S.-M. Zappea, A.J.. Szczepekb, H.. Olzea,b, U.. Rabec
a Department of Otorhinolaryngology, Campus Virchow, Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
b Department of Otorhinolaryngology, Campus Mitte, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 13353 Berlin, Germany
c Department of Allergy and Pulmonology, Johanniterstrasse 1, 14929 Treuenbrietzen, Germany
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    "textoCompleto" => "<a name="sec0005" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Introduction</span><p class="elsevierStylePara">Asthma is a global respiratory health problem affecting 1-18&#37; of the population in different countries&#46;<a href="&#35;bib1" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">1</span></a> According to the Global Initiative for Asthma &#40;GINA&#41;&#44; the levels of asthma symptom control can be divided into controlled&#44; partially controlled and uncontrolled asthma forms&#46;<a href="&#35;bib1" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">1</span></a> Intolerance to non-steroidal anti-inflammatory drugs &#40;NSAIDs&#41; can be detected among 13&#8211;21&#37; of the asthmatics&#46;<a href="&#35;bib2" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">2</span></a><span class="elsevierStyleSup">&#44; </span><a href="&#35;bib3" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">3</span></a> For the asthmatics with nasal polyps &#40;NP&#41;&#44; the incidence of NSAIDs intolerance increases to 30&#37;&#46;<a href="&#35;bib4" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">4</span></a> This association has been termed as &#8220;aspirin triad&#8221;&#44; &#8220;aspirin-exacerbated respiratory disease&#8221; &#40;AERD&#41; or &#8220;NSAIDs hypersensitivity&#8221;&#46;<a href="&#35;bib5" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">5</span></a><span class="elsevierStyleSup">&#44; </span><a href="&#35;bib6" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">6</span></a> The pathogenesis of the AERD is based on a shift from eicosanoids to leukotrienes&#46;<a href="&#35;bib7" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">7</span></a> Depending in its severity&#44; asthma can be treated with beta-2 mimetics&#44; corticosteroids&#44; leukotriene receptor antagonists&#44; theophylline or anti-IgE antibodies&#46;<a href="&#35;bib1" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">1</span></a> A further therapeutic option for asthmatics and NSAIDs hypersensitivity is the aspirin desensitization&#44;<a href="&#35;bib8" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">8</span></a> where the patient is gradually introduced step by step to aspirin&#44; and a daily maintenance dose is determined&#46; The underlying mechanism of aspirin desensitization has until today not yet been completely clarified&#46; Interestingly&#44; following desensitization&#44; there is an increase in the prostaglandin PGE<span class="elsevierStyleInf">2</span>&#47;leukotriene index in patients&#8217; blood&#46;<a href="&#35;bib9" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">9</span></a> To the best of our knowledge&#44; clinical effects of aspirin desensitization in patients with a poorly controlled asthma and NSAIDs hypersensitivity have not yet been reported&#46; For this reason&#44; the aim of our study was to investigate the outcome of aspirin desensitization in patients with NSAIDs hypersensitivity and a poorly controlled asthma&#46; We performed comparative analyses using the data obtained from the patients with controlled asthma and NSAIDs hypersensitivity who underwent aspirin therapy&#46;</p><a name="sec0010" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Methods</span><p class="elsevierStylePara">Patients routinely desensitized against at least 18 months in the Department of Pulmonology &#40;Treuenbrietzen&#44; Germany&#41; or the ORL Department of the Charit&#233; University Hospital &#40;Berlin&#41; between 2009 and 2013 were included in this retrospective study&#46; All patients enrolled in the study gave their informed consent&#46; The inclusion criteria were NSAIDs sensitivity&#44; nasal polyps&#44; controlled or poorly controlled asthma&#46;</p><p class="elsevierStylePara">Twelve patients &#40;mean age 48 y&#44; range from 32 y to 73 y&#44; 4 men&#44; 8 women&#41; with poorly controlled asthma and 20 patients with controlled asthma &#40;mean age 57&#46;75 y&#44; range from 44 y to 67 y&#44; 8 men&#44; 12 women&#41; were included&#46; The &#8220;poorly controlled asthma&#8221;-group consisted of ten patients with uncontrolled asthma and two patients with partially controlled asthma&#46; Aspirin was recommended to be taken by both groups&#44; in order to improve the nasal and asthma symptoms&#46;</p><p class="elsevierStylePara">NSAIDs sensitivity was confirmed by oral aspirin provocation test&#59; a positive reaction was a decline of forced expiratory volume in 1&#160;s &#40;FEV1&#41;&#160;&#8805;&#160;20&#37; of baseline and profound rhinorrhea or nasal blockage&#46;<a href="&#35;bib10" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">10</span></a> The patients were stepwise desensitized to oral aspirin in the hospital with a final daily aspirin maintenance dosage of 500&#160;mg&#46; The following desensitization protocol was used&#58; day 1&#58; placebo&#47;placebo&#47;placebo&#59; day 2&#58; 1&#47;2&#47;4&#47;8&#59; day 3&#58; 10&#47;20&#47;40&#47;80&#59; day 4&#58; 100&#47;100&#47;150&#59; day 5&#58; 200&#47;200&#47;500&#59; from day 6&#58; 500&#160;mg orally administered aspirin&#46;</p><p class="elsevierStylePara">Following parameters were evaluated&#58;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Levels of asthma symptom control</span>&#58; Assessment of symptom control was done by strictly following the GINA criteria<a href="&#35;bib1" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">1</span></a> &#8211; see <a href="&#35;t0005" class="elsevierStyleCrossRefs">Table 1</a>&#46; Following groups of patients were identified&#58;</p><ul><li><p class="elsevierStylePara">1&#46; Controlled or stable asthma group&#58; well controlled asthma&#59;</p></li><li><p class="elsevierStylePara">2&#46; Poorly controlled or instable asthma group&#58; partially controlled asthma&#47;uncontrolled asthma&#46;</p></li></ul><p class="elsevierStylePara">Table 1&#46; GINA assessment of asthma symptom control&#46;</p><a name="t0005" class="elsevierStyleCrossRefs"></a><p class="elsevierStylePara"></p><table><tr align="left"><td colspan="3">Asthma symptom control</td><td colspan="3">Levels of asthma symptom control</td></tr><tr align="left"><td colspan="3">In the past 4 weeks&#44; has the patient had</td><td>Well controlled</td><td>Partially controlled</td><td>Uncontrolled</td></tr><tr align="left"><td>Day time asthma<br></br>Symptoms more than twice&#47;week</td><td>Yes&#9633;</td><td>No&#9633;</td><td rowspan="4">None of these</td><td rowspan="4">1&#8211;2 of these</td><td rowspan="4">3&#8211;4 of these</td></tr><tr align="left"><td>Any night waking due to asthma&#63;</td><td>Yes&#9633;</td><td>No&#9633;</td></tr><tr align="left"><td>Reliever needed for symptoms more than twice&#47;week</td><td>Yes&#9633;</td><td>No&#9633;</td></tr><tr align="left"><td>Any activity limitation due to asthma&#63;</td><td>Yes&#9633;</td><td>No&#9633;</td></tr></table><p class="elsevierStylePara"><span class="elsevierStyleBold">Pulmonary function values</span>&#58; The peak expiratory flow &#40;PEF&#41; variability was measured before aspirin desensitization&#46; The forced expiratory volume in 1&#160;s &#40;FEV1&#41; and vital capacity &#40;VC&#41; were measured by spirometry before and following aspirin treatment&#46;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Use of asthma medication</span>&#58; The daily use and dosages of the asthma medication were documented&#46; The daily dosages of inhaled corticoids &#40;ICS low&#47;medium&#47;high dosage&#41; and the asthma medication scores were obtained in accordance to GINA criteria&#46;<a href="&#35;bib1" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">1</span></a> Prednisolone-dependent patients were separated from the dual GINA classification of severity&#46; The medication was not changed 6 months prior to desensitization&#46;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Nasal endoscopy</span>&#58; The Davos-staging of nasal polyps &#40;NP&#41; size was performed &#40;0&#58; no NP&#59; 1&#58; NP in middle meatus&#59; 2&#58; NP beyond middle meatus&#59; 3&#58; obstructing NP&#41;&#46;<a href="&#35;bib11" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">11</span></a></p><p class="elsevierStylePara"><span class="elsevierStyleBold">Sense of smell</span>&#58; The subjective olfactory function was semi-quantitatively documented &#40;0&#58; no sense of smell&#59; 1&#58; mild sense of smell&#59; 2&#58; moderate sense of smell&#59; 3&#58; excellent sense of smell&#41;&#46;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Follow-up</span>&#58; The patients were routinely examined before aspirin therapy&#44; 6&#44; 12 and 18 months &#40;visit 1&#44; 2 and 3&#41; following aspirin therapy&#46; Pulmonary and nasal parameters were documented&#46;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Adverse events</span>&#58; Adverse events during aspirin induction and maintenance therapy were documented&#46;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Statistics</span>&#58; A nonparametric test of independent samples &#40;Mann&#8211;Whitney <span class="elsevierStyleItalic">U</span> test&#41; was used to test the spirometric parameters FEV-1 and VC&#44; asthma medication and the nasal polyps between patient groups&#46; The levels of asthma control and smell were tested with the chi-squared test &#40;<span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;05&#41;&#46;</p><a name="sec0015" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Results</span><a name="sec0020" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Patients&#8217; characterization prior to aspirin desensitization therapy</span><p class="elsevierStylePara">The mean FEV1-&#44; VC values were significantly lower and PEF variability values higher in the poorly controlled asthma patients &#40;<span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;01&#41;&#46; The nasal polyps size did not differ significantly &#40;0&#46;55&#47;0&#46;95&#59; <span class="elsevierStyleItalic">p</span>&#160;&#61;&#160;0&#46;21&#41;&#46; The asthma medication score in poorly controlled asthma patients was significantly higher than in the controlled group &#40;4&#46;25&#47;2&#46;20&#44; <span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;01&#41;&#46;</p><a name="sec0025" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Patients with poorly controlled asthma following aspirin desensitization therapy</span><p class="elsevierStylePara">In relation to the symptoms of the asthma control levels four patients &#40;33&#46;3&#37;&#41; still had uncontrolled asthma and eight patients controlled asthma after 6 months &#40;67&#37;&#41;&#46; After 12 months of aspirin therapy 11 patients had controlled asthma &#40;91&#46;7&#37;&#41; and one patient with uncontrolled asthma&#44; which finally improved to partially controlled asthma after 18 months&#46; The asthma control level of all visits following aspirin therapy improved significantly when compared to the baseline&#44; <span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;01&#46; The mean FEV1 values increased from the initial 67&#46;4&#37; to 82&#46;4&#37; after 12 months &#40;<span class="elsevierStyleItalic">p</span> 0&#46;03&#41;&#46; The VC values increased from the initial 83&#46;9&#37; to 87&#46;8&#37; &#40;<span class="elsevierStyleItalic">p</span> 1&#46;00&#41;&#44; the size of nasal polyps from initial 0&#46;33 to 0&#46;50 &#40;<span class="elsevierStyleItalic">p</span> 0&#46;56&#41;&#46; The sense of smell improved significantly after 18 months from 1&#46;85 to 2&#46;25 &#40;<span class="elsevierStyleItalic">p</span> 0&#46;02&#41; &#40;<a href="&#35;f0005" class="elsevierStyleCrossRefs">Figure 1</a>&#44; <a href="&#35;f0010" class="elsevierStyleCrossRefs">Figure 2</a>&#41;&#46; The asthma medication score declined from 4&#46;2 to 3&#46;9 &#40;<span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;18&#41;&#46;</p><a name="f0005" class="elsevierStyleCrossRefs"></a><p class="elsevierStylePara"><img src="320v21n06-90445969fig1.jpg" alt="Pulmonary function values before and after acetylsalicylic acid &#40;ASA&#41; desensitization therapy &#40;&#40;a&#41; Vital capacity &#40;VC&#41; values&#59; &#40;b&#41; forced expiratory volume in 1&#160;s &#40;FEV1&#41; values&#59; &#40;c&#41; asthma control levels &#40;1&#58; uncontrolled&#59; 2&#58; partial controlled&#59; 3&#58; controlled&#41; and &#40;d&#41; FEV1 values of prednisolone dependent patients&#41;&#46;"></img></p><p class="elsevierStylePara">Figure 1&#46; Pulmonary function values before and after acetylsalicylic acid &#40;ASA&#41; desensitization therapy &#40;&#40;a&#41; Vital capacity &#40;VC&#41; values&#59; &#40;b&#41; forced expiratory volume in 1&#160;s &#40;FEV1&#41; values&#59; &#40;c&#41; asthma control levels &#40;1&#58; uncontrolled&#59; 2&#58; partial controlled&#59; 3&#58; controlled&#41; and &#40;d&#41; FEV1 values of prednisolone dependent patients&#41;&#46;</p><a name="f0010" class="elsevierStyleCrossRefs"></a><p class="elsevierStylePara"><img src="320v21n06-90445969fig2.jpg" alt="Nasal parameters before and after acetylsalicylic acid &#40;ASA&#41; desensitization therapy &#40;&#40;a&#41; Nasal polyps and &#40;b&#41; smell ability&#41;&#46;"></img></p><p class="elsevierStylePara">Figure 2&#46; Nasal parameters before and after acetylsalicylic acid &#40;ASA&#41; desensitization therapy &#40;&#40;a&#41; Nasal polyps and &#40;b&#41; smell ability&#41;&#46;</p><a name="sec0030" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Patients with controlled asthma following aspirin desensitization therapy</span><p class="elsevierStylePara">No patient developed uncontrolled asthma during the follow-up examination&#46; The mean FEV values were 92&#37; before and 92&#46;4&#37; following therapy&#44; the VC values 101&#46;6&#37; before and 96&#46;3&#37; following aspirin desensitization &#40;<span class="elsevierStyleItalic">p</span>&#160;&#8805;&#160;0&#46;50&#41;&#46; The nasal polyps scores decreased &#40;0&#46;95&#47;0&#46;65&#59; <span class="elsevierStyleItalic">p</span> 1&#46;00&#41;&#46; The sense of smell improved from 1&#46;50 to 2&#46;15 &#40;<span class="elsevierStyleItalic">p</span> 0&#46;16&#41;&#44; the sense of smell scores improved significantly after 12 months &#40;<span class="elsevierStyleItalic">p</span>&#160;&#61;&#160;0&#46;03&#41; &#40;<a href="&#35;f0005" class="elsevierStyleCrossRefs">Figure 1</a>&#44; <a href="&#35;f0010" class="elsevierStyleCrossRefs">Figure 2</a>&#41;&#46; The asthma medication level in this group was constant 2&#46;2 &#40;<span class="elsevierStyleItalic">p</span>&#160;&#61;&#160;1&#46;00&#41;&#46;</p><a name="sec0035" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Comparison of the poorly controlled and the controlled asthma patients following 18 months of aspirin therapy</span><p class="elsevierStylePara">After 18 months&#44; the FEV1 values and the size of nasal polyps did not differ significantly between the patient groups&#44; the VC values from the poorly controlled asthma group were significantly lower &#40;84&#46;4&#37;&#47;93&#46;5&#37;&#59; <span class="elsevierStyleItalic">p</span> 0&#46;03&#41;&#46; In addition&#44; the medication score was still significantly elevated in the poorly controlled asthma group &#40;<span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;01&#41;&#46;</p><a name="sec0070" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Examination of corticosteroid-dependent patients</span><a name="sec0075" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle"><span class="elsevierStyleItalic">Patient group with controlled asthma and oral prednisolone</span></span><p class="elsevierStylePara">One patient was on permanent oral 10&#160;mg prednisolone&#46; The mean FEV1 value decreased from initial 72&#37; to 69&#37;&#44; the nasal polyp size increased from 0 to 2 after 18 months aspirin therapy&#46;</p><a name="sec0080" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle"><span class="elsevierStyleItalic">Patient group with uncontrolled asthma and oral prednisolone</span></span><p class="elsevierStylePara">Prior to desensitization&#44; four patients were on permanent oral prednisolone &#40;mean dosage 13&#46;3&#160;mg&#41;&#46; After 18 months therapy one patient had partial controlled asthma and the other patients had controlled asthma&#46; The mean prednisolone dosage was reduced to 6&#46;5&#160;mg &#40;<a href="&#35;f0015" class="elsevierStyleCrossRefs">Figure 3</a>&#41;&#46; The mean FEV1 value increased from 60&#37; to 97&#37; and the nasal polyp size from 0 to 0&#46;67&#46;</p><a name="f0015" class="elsevierStyleCrossRefs"></a><p class="elsevierStylePara"><img src="320v21n06-90445969fig3.jpg" alt="Asthma medication parameters before and after acetylsalicylic acid &#40;ASA&#41; desensitization therapy &#40;&#40;a&#41; asthma medication of stable asthma patients&#59; &#40;b&#41; asthma medication of instable asthma patients and &#40;c&#41; corticoiddosages of asthma patients&#41;&#46;"></img></p><p class="elsevierStylePara">Figure 3&#46; Asthma medication parameters before and after acetylsalicylic acid &#40;ASA&#41; desensitization therapy &#40;&#40;a&#41; asthma medication of stable asthma patients&#59; &#40;b&#41; asthma medication of instable asthma patients and &#40;c&#41; corticoiddosages of asthma patients&#41;&#46;</p><a name="sec0085" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle"><span class="elsevierStyleItalic">Patient group with uncontrolled asthma and intravenous prednisolone</span></span><p class="elsevierStylePara">One patient had an asthma exacerbation before aspirin therapy and was treated with an intravenous prednisolone pulse therapy &#40;initial dosage 250&#160;mg&#41;&#46; The FEV1 was 46&#37; and the nasal polyp size 0&#46; After 18 months of aspirin desensitization&#44; the asthma was controlled&#44; FEV1 was 89&#37; and the nasal polyp size 0&#46; Parenteral prednisolone therapies were not repeated&#46;</p><a name="sec0040" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Adverse events</span><p class="elsevierStylePara">In three patients with poorly controlled asthma&#44; administration of aspirin induced recurrent asthma attacks&#46; These patients were initially administered 150&#160;mg or 300&#160;mg aspirin&#46; During the second desensitization appointment&#44; the dosage of aspirin has been increased to 500&#160;mg&#44; which induced no complications&#46; During the maintenance therapy&#44; no adverse events were observed&#46;</p><a name="sec0045" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Discussion</span><p class="elsevierStylePara">This retrospective study demonstrates for the first time that the patients with a NSAIDs-hypersensitivity and poorly controlled asthma can benefit from aspirin desensitization&#46; Following 6 months desensitization&#44; the asthma control levels significant improved&#46; In epidemiological studies&#44; the asthma severity in NDAIDs hypersensitive patients was higher and FEV1 values lower&#44; as compared to NSAIDs tolerant asthma patients&#46;<a href="&#35;bib12" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">12</span></a><span class="elsevierStyleSup">&#44; </span><a href="&#35;bib13" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">13</span></a> In both studies&#44; aspirin therapy was not performed&#46; The pathomechanism of the NSAIDs hypersensitivity is based on an altered cyclooxygenase metabolism&#46;<a href="&#35;bib14" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">14</span></a> The effect of aspirin desensitization is not yet really clear&#46; Under the daily aspirin administration&#44; a significant increase of the prostaglandin E<span class="elsevierStyleInf">2</span>&#47;leukotriene index<a href="&#35;bib9" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">9</span></a> appears to take place&#46;</p><p class="elsevierStylePara">According to GINA criteria&#44; the main goal of asthma management is to gain optimal asthma control&#46;<a href="&#35;bib1" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">1</span></a> Depending on the severity of the disease&#44; a multimodal therapy involving beta-2-mimetics&#44; corticosteroids&#44; leukotriene receptor antagonists&#44; and theophylline or anti-IgE antibodies is necessary&#46; Dahl&#233;n et al&#46; examined the effects of leukotriene receptor antagonist montelukast in NSAIDs-hypersensitive patients and found significantly improved FEV1 values&#46;<a href="&#35;bib15" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">15</span></a> Some patients in our study were treated with montelukast &#40;see <a href="&#35;f0015" class="elsevierStyleCrossRefs">Figure 3</a>&#41;&#46; Since no changes in medication were made&#44; our results appear to be aspirin-dependent&#46;</p><p class="elsevierStylePara">Berges Gimeno examined 126 patients &#40;daily 1300&#160;mg aspirin&#41; and registered over one year a significant reduction of nasal symptoms and a significant reduction in the number of short-term prednisolone treatments due to asthma&#46;<a href="&#35;bib8" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">8</span></a> In our study the oral prednisolone dosage was reduced from the original mean 13&#46;3&#160;mg to mean 6&#46;5&#160;mg in instable asthma patients&#46; One instable asthma patient who received intravenous prednisolone during asthma exacerbation prior to aspirin desensitization&#44; no longer needed corticosteroids after desensitization&#46; In the work of Stevenson&#44; inclusion criteria for the aspirin desensitization required a FEV1 variability of &#60;10&#37; and FEV1 values of &#62;60&#37;&#46;<a href="&#35;bib16" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">16</span></a> In our study&#44; we included patients with PEF variability greater than 10&#37; &#40;instable asthma 45&#37;&#59; stable asthma 14&#37;&#41;&#46; The mean FEV1 values in our sample were better than Stevensons&#8217; inclusion criteria &#40;instable asthma 67&#37;&#59; stable asthma 92&#37;&#41;&#46; We demonstrated that the FEV1 values significantly improved in the poorly controlled asthma patients following 12 months of aspirin therapy &#40;<span class="elsevierStyleItalic">p</span> 0&#46;03&#41;&#46; Also&#44; the FEV1 values of corticosteroid-dependent patients increased following aspirin therapy in our study &#40;<a href="&#35;f0015" class="elsevierStyleCrossRefs">Figure 3</a>&#41;&#46;</p><p class="elsevierStylePara">Havel et al&#46; found that 56 patients with NSAIDs hypersensitivity receiving aspirin for more than 18 months &#40;daily 500&#160;mg aspirin&#41; following nasal sinus surgery have improved in relation to asthma and nasal complaints&#46;<a href="&#35;bib17" class="elsevierStyleCrossRefs"><span class="elsevierStyleSup">17</span></a> The spirometric examinations were not done in follow-up&#46; A significantly lower nasal polyp size in patients receiving aspirin was observed&#44; as compared to the patients not receiving aspirin&#46; In our study&#44; the difference in nasal polyp size before and after aspirin therapy was not significant&#44; which may depend on our inclusion criteria&#44; where we did not compare nasal polyp groups with and without aspirin desensitization therapy and our patients were not all included immediately after surgery&#46;</p><p class="elsevierStylePara">Therapy of patients with therapy-resistant asthma and NSAIDs hypersensitivity requires a multimodal therapeutic concept according to pulmonary guidelines&#46; To the best of our knowledge&#44; the present study is the first retrospective examination of patients with NSAIDs hypersensitivity and poorly controlled asthma receiving aspirin therapy&#46; Concerning the asthma symptom control levels&#44; a significant improvement was observed &#40;<span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;01&#41;&#46; Although the patients certainly profit from the asthma medication administered according to GINA guidelines&#44; they can also profit from an add-on aspirin therapy&#46; Further studies with larger samples are necessary to further validate this therapy&#46; This exploratory retrospective analysis will be continued in order to compare NSAIDs sensitive asthmatic patients subjected to NSAIDs desensitization with the patients receiving standard therapy&#46;</p><a name="sec0050" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Ethical disclosures</span><a name="sec0090" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Protection of human and animal subjects</span><p class="elsevierStylePara">The authors declare that no experiments were performed on humans or animals for this study&#46;</p><a name="sec0055" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Confidentiality of data</span><p class="elsevierStylePara">The authors declare that they have followed the protocols of their work center on the publication of patient data&#46;</p><a name="sec0095" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Right to privacy and informed consent</span><p class="elsevierStylePara">The authors declare that no patient data appear in this article&#46;</p><a name="sec0060" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Author contribution</span><p class="elsevierStylePara">UFR&#58; conceived the study&#44; performed patients examinations&#44; collected and interpreted the data and wrote the manuscript&#46;</p><p class="elsevierStylePara">SM&#46;Z&#58; performed patients examinations and collected the data&#46;</p><p class="elsevierStylePara">AJ&#46;S&#58; interpreted the data and wrote the manuscript&#46;</p><p class="elsevierStylePara">HO&#58; supervised the project&#44; interpreted the data and wrote the manuscript&#46;</p><p class="elsevierStylePara">UR&#58; conceived the study&#44; performed patients examinations&#44; supervised the project and wrote the manuscript&#46;</p><a name="sec0065" class="elsevierStyleCrossRefs"></a><span class="elsevierStyleSectionTitle">Conflict of interest</span><p class="elsevierStylePara">The authors have no conflicts of interest to declare&#46;</p><p class="elsevierStylePara">Received 24 September 2014 <br></br>Accepted 5 June 2015 </p><p class="elsevierStylePara">Corresponding author&#46; ulrike&#46;foerster&#64;charite&#46;de</p>"
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            0 => "Asthma"
            1 => "Levels of asthma symptom control"
            2 => "GINA"
            3 => "Uncontrolled asthma"
            4 => "Aspirin-exacerbated respiratory disease &#40;AERD&#41;"
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            6 => "NSAIDs sensitive asthma"
            7 => "Nasal polyps"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Background</span><br/><p class="elsevierStylePara">According to the Global Initiative for Asthma &#40;GINA&#41;&#44; the levels of asthma symptom control can be divided into controlled&#44; partially controlled and uncontrolled asthma&#46; Optional therapy for non-steroidal anti-inflammatory drugs &#40;NSAIDs&#41;-hypersensitive asthmatics uses aspirin desensitization&#44; but until now&#44; this therapy is not established in difficult to treat cases&#46; The aim of this study was to evaluate the efficacy of aspirin desensitization in patients with poorly controlled asthma&#46;</p><span class="elsevierStyleSectionTitle">Methods</span><br/><p class="elsevierStylePara">Patients with poorly controlled asthma&#44; NDAIDs hypersensitivity and aspirin desensitization were included in the retrospective study&#46; The data were compared to those obtained from patients with controlled asthma and aspirin therapy&#46; Lung function&#44; levels of asthma symptom control&#44; asthma medication&#44; the size of nasal polyps &#40;NP&#41; and smell function were evaluated over 18 months&#46;</p><span class="elsevierStyleSectionTitle">Results</span><br/><p class="elsevierStylePara">Thirty-two patients were included in the study &#40;uncontrolled&#47;partially controlled asthma <span class="elsevierStyleItalic">n</span>&#160;&#61;&#160;12&#59; controlled asthma <span class="elsevierStyleItalic">n</span>&#160;&#61;&#160;20&#41;&#46; After 18 months of follow-up&#44; the patients with poorly controlled asthma had significantly increased forced expiratory volume in 1&#160;s &#40;FEV1&#41; values&#44; as compared to the baseline &#40;66&#8211;82&#37;&#59; <span class="elsevierStyleItalic">p</span>&#160;&#61;&#160;0&#46;02&#41;&#44; the levels of asthma control improved significantly &#40;<span class="elsevierStyleItalic">p</span>&#160;&#60;&#160;0&#46;01&#41;&#46; The asthma medication was reduced&#46; In the group of controlled asthma the FEV1 values did not increase significantly &#40;91&#46;9&#8211;92&#46;4&#37;&#59; <span class="elsevierStyleItalic">p</span>&#160;&#62;&#160;0&#46;05&#41; and the asthma medication was constant&#46; In relation to nasal parameters the sense of smell improved significantly in both groups&#44; NP-scores did not differ significantly&#46;</p><span class="elsevierStyleSectionTitle">Conclusions</span><br/><p class="elsevierStylePara">Patients with a poorly controlled asthma and NSAIDs hypersensitivity profit from an add-on aspirin therapy&#46;</p>"
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Pulmonology

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