Publication: Renin angiotensin system blockers-associated angioedema in the Thai population: Analysis from Thai national pharmacovigilance database
Issued Date
2015-09-01
Resource Type
ISSN
22288694
0125877X
0125877X
Other identifier(s)
2-s2.0-84980494861
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Mahidol University
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SCOPUS
Bibliographic Citation
Asian Pacific Journal of Allergy and Immunology. Vol.33, No.3 (2015), 227-235
Suggested Citation
Thet Su Zin Win, Nathorn Chaiyakunapruk, Wimon Suwankesawong, Piyameth Dilokthornsakul, Surakit Nathisuwan Renin angiotensin system blockers-associated angioedema in the Thai population: Analysis from Thai national pharmacovigilance database. Asian Pacific Journal of Allergy and Immunology. Vol.33, No.3 (2015), 227-235. doi:10.12932/AP0556.33.3.2015 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/36082
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Title
Renin angiotensin system blockers-associated angioedema in the Thai population: Analysis from Thai national pharmacovigilance database
Abstract
© 2016, Allergy and Immunology Society of Thailand. All right reserved. Background: Renin-angiotensin-aldosterone system (RAS) blockers are commonly used for cardiovascular diseases. Currently, little information exists for the Asian population on angioedema, a rare yet serious adverse event. Objective: This study aimed to describe characteristics of RAS blockers-associated angioedema (RASBA) in Thai patients. Methods: A retrospective study using the national pharmacovigilance database of Thailand was undertaken. Cases indicating the presence of angioedema with RAS blockers uses from 1984-2011 were identified. Patient demographics, comorbidities, concomitant drugs, information for the RAS blockers and angioedema were obtained as well as causality assessment and quality of reports. Results: A total of 895 cases were identified. Mean age was 59.9±12.8 years and 66.5% being female. Most angioedema events (48.6%) occurred during the first week of treatment. Angiotensin converting enzyme inhibitors (87.7%) were the most commonly implicated agents followed by angiotensin receptor blockers (10.5%), aldosterone antagonist (2.1%) and direct renin inhibitor (0.2%). Out of the 895 cases incorporated in this study, 165 (18.4%) were classified as serious events and resulted in hospitalization. The overall case fatality rate was 0.4%. Respiratory disturbance occurred in 46 cases (5.1%). Patients with respiratory complications tended to be younger (53.4±13.9 vs 60.3±12.7 years old; p=0.002) and with higher frequency of allergy history (26.1% vs 14.7%; p=0.032) compared to those without respiratory complications. Based on multivariate logistic regression, the adjusted OR for history of allergy was 2.23 (95%CI: 1.04 - 4.78, p = 0.041). Conclusions: RASBA in Thai population occurred mostly in elderly female patients and often led to hospitalization. Since large number of patients is regularly exposed to RAS-blockers, a nationwide attempt to raise awareness of clinicians when prescribing RAS-blockers is prudent.