PMID- 27838693 OWN - NLM STAT- MEDLINE DCOM- 20170223 LR - 20170817 IS - 1423-0097 (Electronic) IS - 1018-2438 (Linking) VI - 171 IP - 1 DP - 2016 TI - Management of Hypersensitivity Reactions to Proton Pump Inhibitors: A Retrospective Experience. PG - 54-60 AB - 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: Lansoprazole 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 cross-reactivity among PPIs; however, a safe, alternative PPI can usually be detected by a thorough drug allergy workup. CI - (c) 2016 S. Karger AG, Basel. FAU - Kepil Ozdemir, Secil AU - Kepil Ozdemir S AD - Division of Allergy and Immunology, Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkey. FAU - Oner Erkekol, Ferda AU - Oner Erkekol F FAU - Unal, Derya AU - Unal D FAU - Buyukozturk, Suna AU - Buyukozturk S FAU - Gelincik, Asli AU - Gelincik A FAU - Dursun, Adile Berna AU - Dursun AB FAU - Karakaya, Gul AU - Karakaya G FAU - Bavbek, Sevim AU - Bavbek S LA - eng PT - Journal Article PT - Multicenter Study DEP - 20161112 PL - Switzerland TA - Int Arch Allergy Immunol JT - International archives of allergy and immunology JID - 9211652 RN - 0 (Proton Pump Inhibitors) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Cross Reactions/immunology MH - Disease Management MH - Drug Hypersensitivity/*diagnosis/*immunology MH - Female MH - Humans MH - Male MH - Middle Aged MH - Proton Pump Inhibitors/*adverse effects MH - Retrospective Studies MH - Severity of Illness Index MH - Skin Tests MH - Young Adult EDAT- 2016/11/14 06:00 MHDA- 2017/02/24 06:00 CRDT- 2016/11/14 06:00 PHST- 2016/05/20 00:00 [received] PHST- 2016/09/20 00:00 [accepted] PHST- 2016/11/14 06:00 [pubmed] PHST- 2017/02/24 06:00 [medline] PHST- 2016/11/14 06:00 [entrez] AID - 000450952 [pii] AID - 10.1159/000450952 [doi] PST - ppublish SO - Int Arch Allergy Immunol. 2016;171(1):54-60. doi: 10.1159/000450952. Epub 2016 Nov 12.