Pyrazinamide-Induced Anaphylaxis: Diagnosed by Skin Test and Successful Desensitization

Pyrazinamide (PZA), an antituberculosis drug, may cause hypersensitivity reactions. Here, we report a case of anaphylaxis secondary to a PZA administration for tuberculosis pleuritis. To the best of our knowledge, this is the first reported case of strongly possible IgE-mediated, PZA-induced anaphylaxis proved by skin prick test and oral provocation/desensitization. Copyright (C) 2011 S. Karger AG, Base

Turkish version of the Drug Hypersensitivity Quality of Life Questionnaire: assessment of reliability and validity

Dursun, A. Berna/0000-0002-6337-6326; Bavbek, Sevim/0000-0002-7884-0830; GOKSEL, Ozlem/0000-0003-1121-9967; Romano, Antonino/0000-0001-9742-9898WOS: 000367896300011PubMed: 26091583The first disease-specific quality-of-life questionnaire in patients with drug hypersensitivity, Drug Hypersensitivity Quality of Life Questionnaire (DrHy-Q), was developed and validated recently. the aim of this study was to assess validity, reliability and responsiveness to interventions of the Turkish version of the DrHy-Q. the Turkish version of the DrHy-Q was administered to prospectively enrolled 736 patients with drug hypersensitivity from ten allergy units. To assess validity, all patients completed the validated Turkish version of Psychological General Well-Being Index (PGWBI). For test-retest reliability, 182 patients completed the DrHy-Q 1 week after the first questionnaire administration without any intervention. Responsiveness was assessed on 97 patients who had a DrHy-Q recorded at a follow-up visit after the intervention. the internal consistency and test-retest reliability of the scale were adequate (Cronbach's alpha = 0.934, intra-class correlation coefficient = 0.783). the DrHy-Q scores showed weak negative correlations with the PGWBI total and domain scores (r = - 0.378 to -0.254, p 0.05). the baseline DrHy-Q scores were significantly higher than the post-intervention scores (p = 0.008). the Turkish version of DrHy-Q is reliable and valid for evaluating quality of life in patients with drug hypersensitivity, and it appeared responsive to interventions

Evaluation of drug provocation teste-related anxiety in patients with drug hypersensitivity

Background: Drug provocation tests (DPTs) are important in the treatment of patients with drug hypersensitivity (DH), but they carry certain hypersensitivity reaction risks, which lead to procedure-related concerns in patients

Management of Hypersensitivity Reactions to Proton Pump Inhibitors: A Retrospective Experience

Background: We previously reported perfect specificity and low sensitivity of skin tests in proton pump inhibitor (PPI)-induced immediate hypersensitivity reactions in a prospective multicenter study. Here, in a retrospective study, we aimed to further evaluate the diagnostic workup procedures and characteristics of the patients with suspected PPI hypersensitivity. Methods: This national multicenter study was conducted as a retrospective chart review of patients with a history of PPI-induced immediate hypersensitivity reaction. A total of 60 patients were included. Results of diagnostic workup procedures (standardized skin-prick, intradermal, and oral-provocation tests with PPIs) and the characteristics of the patients were analyzed. Results: Lansopra-zole was the most commonly suspected drug with 41 patients (68.3%), followed by pantoprazole in 12 patients (20.0%), esomeprazole in 6 (10.0%), rabeprazole in 4 (6.7%), and omeprazole in 1 (1.7%). Anaphylaxis (40 patients, 66.7%) was the most common clinical presentation followed by urticaria (17 patients, 28.3%). Diagnostic skin tests with the culprit PPI were positive in 13/26 patients (50.0%). Diagnostic oral-provocation tests were negative in 6/8 patients; 5 of these 6 patients had skin test results with the culprit PPI, and all were negative. Ten patients had at least 1 cross-reactivity. Extensive cross-reactivity (between > 2 PPIs) was detected in 4 patients. Conclusions: Lansoprazole was the most frequently implicated drug and anaphylaxis was the most frequent manifestation of PPI-induced hypersensitivity reactions. Physicians should be aware of the possible crossreactivity among PPIs; however, a safe, alternative PPI can usually be detected by a thorough drug allergy workup. (C) 2016 S. Karger AG, Base

Management of Hypersensitivity Reactions to Proton Pump Inhibitors: A Retrospective Experience

Background: We previously reported perfect specificity and low sensitivity of skin tests in proton pump inhibitor (PPI)-induced immediate hypersensitivity reactions in a prospective multicenter study. Here, in a retrospective study, we aimed to further evaluate the diagnostic workup procedures and characteristics of the patients with suspected PPI hypersensitivity. Methods: This national multicenter study was conducted as a retrospective chart review of patients with a history of PPI-induced immediate hypersensitivity reaction. A total of 60 patients were included. Results of diagnostic workup procedures (standardized skin-prick, intradermal, and oral-provocation tests with PPIs) and the characteristics of the patients were analyzed. Results: Lansopra-zole was the most commonly suspected drug with 41 patients (68.3%), followed by pantoprazole in 12 patients (20.0%), esomeprazole in 6 (10.0%), rabeprazole in 4 (6.7%), and omeprazole in 1 (1.7%). Anaphylaxis (40 patients, 66.7%) was the most common clinical presentation followed by urticaria (17 patients, 28.3%). Diagnostic skin tests with the culprit PPI were positive in 13/26 patients (50.0%). Diagnostic oral-provocation tests were negative in 6/8 patients; 5 of these 6 patients had skin test results with the culprit PPI, and all were negative. Ten patients had at least 1 cross-reactivity. Extensive cross-reactivity (between > 2 PPIs) was detected in 4 patients. Conclusions: Lansoprazole was the most frequently implicated drug and anaphylaxis was the most frequent manifestation of PPI-induced hypersensitivity reactions. Physicians should be aware of the possible crossreactivity among PPIs; however, a safe, alternative PPI can usually be detected by a thorough drug allergy workup. (C) 2016 S. Karger AG, BaselWoSScopu

Analysis of the factors associated with diagnostic skin test positivity in immediate-type hypersensitivity reactions due to proton pump inhibitors

Bavbek, Sevim/0000-0002-7884-0830; Dursun, A. Berna/0000-0002-6337-6326WOS: 000471068100018PubMed: 30632619[No abstract available

Therapy with omalizumab in patients with severe persistant allergic asthma: a real life data in Turkey

Omalizumab is a biologic agent, which has been shown to be effective in clinical trials in allergic, severe asthmatics. The aim of this study was to evaluate the clinical, functional effectiveness, and side effects of omalizumab in real-life conditions respectively. A total of 18 patients (female/male: 11/7) were included to the study. The mean +/- SD age, total IgE, disease duration were 41.8 +/- 11.2 years, 255.1 +/- 197.3 kU/L, 12.8 +/- 9.4 years, respectively. Eight patients had isolated mite, seven patiens had mite + other inhalant allergen, three patients had only other allergen sensitivity. Mean duration of omalizumab treatment (months +/- SD) was 15.1 +/- 8.6 (min-max 1-29) months. Omalizumab dose was 150 mg/month in five patients, 300 mg/month in five, 300 mg/15 days in three, 375 mg/15 days in four, 225 mg/15 days in one patient. Data at the date of last visit were compared with one year prior to omalizumab treatment. Mean systemic steroid dose reduced by 83% (14.7 +/- 14.6 vs. 3.2 +/- 8 mg), number of other asthma medications reduced by 28% (3.6 +/- 1.3 vs. 2.5 +/- 1.3) (p< 0.05). FEV1% values (53.5 +/- 21.2 vs. 64.5 +/- 23.5) did not significantly change. Mean numbers of exacerbations (20 +/- 57.6 vs. 0.4 +/- 0.7), emergency visits (16.5 +/- 46.1 vs. 0.4 +/- 1.2), hospitalizations (2.1 +/- 2.6 vs. 0.1 +/- 0.3) decreased by 93%, 95%, 86%, respectively (p< 0.05). ACT scores increased by 94% (10.4 +/- 3.4 vs. 20.4 +/- 5.7) (p< 0.05). Fifteen patients (88%) were stated as responsive to treatment with omalizumab. Eleven patients (64.8%) stated that their expectations are met, three patients (17.6%) stated that their expectations are close to being met, three patients (17.6%) stated that their expectations are not met. A local side effect was seen in one patient. In conclusion, our data has shown that omalizumab is effective, and safe in severe allergic asthmatics under real-life conditions

Churg-Strauss syndrome: a new endotype of severe asthma? Results of 14 Turkish patients

IntroductionChurg-Strauss syndrome (CSS) is a rare multisystem vasculitis. Considering the variation of autoimmune diseases in different races, it is of interest to determine whether any outstanding features exist for Turkish patients with CSS

Turkish version of the Drug Hypersensitivity Quality of Life Questionnaire: assessment of reliability and validity

The first disease-specific quality-of-life questionnaire in patients with drug hypersensitivity, Drug Hypersensitivity Quality of Life Questionnaire (DrHy-Q), was developed and validated recently. The aim of this study was to assess validity, reliability and responsiveness to interventions of the Turkish version of the DrHy-Q

What should be the appropriate minimal duration for patient examination and evaluation in pulmonary outpatient clinics?

INTRODUCTION: Patient examinations performed in a limited time period may lead to impairment in patient and physician relationship, defective and erroneous diagnosis, inappropriate prescriptions, less common use of preventive medicine practices, poor patient satisfaction, and increased violent acts against health-care staff