Lin L, Lin Y, Chen Q, et al. - Researchers examined how body mass index (BMI) was associated with in-hospital major adverse outcomes (MAO) among acute type A aortic dissection (AAAD) patients. A retrospective analysis was performed with patients who had AAAD surgery at Cardiac Medical Center of Fujian Province from June 2013 to March 2020. This analysis involved 777 cases, including 31.9% normal weight, 52.5% overweight, and 15.6% obese. A significant difference for MAO was evident between the three groups (62.9% vs 72.1% vs 77.7%, respectively). In multivariable logistic regression analysis, overweight and obese patients were found to have a higher risk of MAO with reference to the normal weight patients, and factors related to in-hospital MAO included age, white blood cell, prior stroke and cardiopulmonary bypass time. Overall, findings demonstrated an independent link of BMI with higher in-hospital MAO among patients who received AAAD surgery.