Suhyun Lee1, Kyu-Nam Heo1, Mee Yeon Lee1, Woo-Youn Kim1, Young-Mi Ah2, Jaekyu Shin3, Ju-Yeun Lee4. 1. College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1, Gwanak-ro, Seoul, 08826, Republic of Korea. 2. College of Pharmacy, Yeungnam University, Gyeongsan, Gyeongbuk, Republic of Korea. 3. Department of Clinical Pharmacy, School of Pharmacy, University of California, San Francisco, CA, USA. 4. College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1, Gwanak-ro, Seoul, 08826, Republic of Korea. jypharm@snu.ac.kr.
Abstract
INTRODUCTION: Despite growing evidence showing an increased risk of concomitant use of nonsteroidal anti-inflammatory drugs (NSAIDs) and anticoagulants, few studies have investigated whether proton pump inhibitors can prevent gastrointestinal (GI) complications in patients receiving both NSAIDs and anticoagulants. OBJECTIVE: We aimed to evaluate the risk of serious GI complications and the impact of GI preventive strategies on the concomitant use of NSAIDs and anticoagulants. METHODS: Our nationwide cohort study using Korea's claims data included elderly patients (aged ≥ 65 years) who started anticoagulants and NSAIDs from 2016 to 2017. The outcome was serious GI complications defined as hospitalization or emergency department visits with GI bleeding or perforation. A Cox regression analysis was performed using time-dependent variables and propensity score matching. RESULTS: In total, 92,379 patients were identified. Compared with non-prophylaxis, proton pump inhibitors and selective cyclooxygenase-2 inhibitors were associated with a 64% [adjusted hazard ratio, 0.36 (95% confidence interval 0.25-0.53)] and 74% [adjusted hazard ratio, 0.26 (95% confidence interval 0.19-0.36)] lower risk of serious GI complications, respectively. Cyclooxygenase-2 inhibitor use was not different from the use of non-selective NSAIDs with proton pump inhibitors for the prevention of serious GI complications. H2-receptor antagonists did not reduce the risk of serious GI complications compared with non-prophylaxis during concomitant non-selective NSAID and anticoagulant therapy. CONCLUSIONS: Proton pump inhibitors or cyclooxygenase-2 inhibitors used as GI preventive strategies did not completely eliminate but lowered the risk of serious GI complications among elderly patients receiving both NSAIDs and anticoagulants.
INTRODUCTION: Despite growing evidence showing an increased risk of concomitant use of nonsteroidal anti-inflammatory drugs (NSAIDs) and anticoagulants, few studies have investigated whether proton pump inhibitors can prevent gastrointestinal (GI) complications in patients receiving both NSAIDs and anticoagulants. OBJECTIVE: We aimed to evaluate the risk of serious GI complications and the impact of GI preventive strategies on the concomitant use of NSAIDs and anticoagulants. METHODS: Our nationwide cohort study using Korea's claims data included elderly patients (aged ≥ 65 years) who started anticoagulants and NSAIDs from 2016 to 2017. The outcome was serious GI complications defined as hospitalization or emergency department visits with GI bleeding or perforation. A Cox regression analysis was performed using time-dependent variables and propensity score matching. RESULTS: In total, 92,379 patients were identified. Compared with non-prophylaxis, proton pump inhibitors and selective cyclooxygenase-2 inhibitors were associated with a 64% [adjusted hazard ratio, 0.36 (95% confidence interval 0.25-0.53)] and 74% [adjusted hazard ratio, 0.26 (95% confidence interval 0.19-0.36)] lower risk of serious GI complications, respectively. Cyclooxygenase-2 inhibitor use was not different from the use of non-selective NSAIDs with proton pump inhibitors for the prevention of serious GI complications. H2-receptor antagonists did not reduce the risk of serious GI complications compared with non-prophylaxis during concomitant non-selective NSAID and anticoagulant therapy. CONCLUSIONS: Proton pump inhibitors or cyclooxygenase-2 inhibitors used as GI preventive strategies did not completely eliminate but lowered the risk of serious GI complications among elderly patients receiving both NSAIDs and anticoagulants.
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