RT Journal Article SR Electronic T1 Association between bariatric surgery and rate of hospitalisations for stable angina pectoris in obese adults JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1009 OP 1014 DO 10.1136/heartjnl-2016-310757 VO 103 IS 13 A1 Yuichi J Shimada A1 Yusuke Tsugawa A1 Hiroyasu Iso A1 David FM Brown A1 Kohei Hasegawa YR 2017 UL http://heart.bmj.com/content/103/13/1009.abstract AB Objective Obesity and stable angina pectoris (SAP) are important public health problems in the USA. However, little is known about whether weight reduction affects the rate of SAP-related morbidities. This study was designed to test the hypothesis that bariatric surgery is associated with a lower rate of hospitalisations for SAP in obese adults.Methods We performed a self-controlled case series study of obese adults with SAP who underwent bariatric surgery using a population-based inpatient database in three states (California, Florida and Nebraska) from 2005 to 2011. The primary outcome was hospitalisation for SAP. We used conditional logistic regression to compare the rate of the outcome event during sequential 12-month periods, using presurgery months 13–24 as a reference period.Results Our sample consisted of 953 patients with SAP who underwent bariatric surgery. The median age was 57 years, 51% were women, and 78% were non-Hispanic white. During the reference period, 25.3% (95%CI, 22.5% to 28.1%) had a hospitalisation for SAP. The rate remained stable in the subsequent 12-month presurgery period (adjusted OR (aOR) 0.84 (95% CI, 0.69 to 1.02); p=0.07). In the first 12-month period after bariatric surgery, we observed a significantly lower rate (9.1% (95% CI, 7.3% to 11.0%); aOR 0.33 (95% CI, 0.26 to 0.43); p<0.0001). Similarly, the rate remained significantly lower in the subsequent 13–24 months after bariatric surgery (8.7% (95% CI, 6.9% to 10.5%); aOR 0.31 (95% CI, 0.24 to 0.41); p<0.0001).Conclusion In this population-based study of obese adults with SAP, we found that the rate of hospitalisations for SAP was lower by two-thirds after bariatric surgery.