TY - JOUR T1 - Patients treated with aspirin after a first myocardial infarction who also receive a proton pump inhibitor have a higher incidence of cardiovascular events JF - Evidence Based Medicine JO - Evid Based Med SP - 33 LP - 34 DO - 10.1136/ebmed.2011.100263 VL - 17 IS - 1 AU - David N Juurlink Y1 - 2012/02/01 UR - http://ebm.bmj.com/content/17/1/33.abstract N2 - Commentary on: Charlot M, Grove EL, Hansen PR, et al. Proton pump inhibitor use and risk of adverse cardiovascular events in aspirin treated patients with first time myocardial infarction: nationwide propensity score matched study. BMJ 2011;342:d2690.OpenUrlAbstract/FREE Full Text Proton pump inhibitors (PPIs) block the final step in gastric acid production, increasing intragastric pH from about 1 to above 4, depending on the agent and dose used.1 This increase may influence the fate of drugs in the stomach. In the case of acetylsalicylic acid (ASA), neutralisation of gastric contents significantly decreases the absorption of both ASA and salicylic acid,2 but the clinical significance of this is uncertain. While lansoprazole does not influence the effect of low-dose enteric-coated ASA on … ER -