Musselman RP, et al. - Researchers investigated the effects of beta-blockers at the time of index surgery for breast, lung, and colorectal cancer. They conducted a retrospective matched cohort study using linked data from a provincial cancer registry to compare disease-specific and overall survival between patients over age 64 exposed and not exposed to beta-blockers before and after index surgical resection for breast, lung and colorectal cancer between April 1, 2002, and December 31, 2010. Findings revealed no association between perioperative beta-blocker exposure and improved cancer-specific survival for breast, lung, or colorectal cancer.