Association Between Preoperative Aspirin-dosing Strategy and Mortality After Coronary Artery Bypass Graft Surgery.

Objective: To determine whether preoperative aspirin-acetylsalicylic acid (ASA)-timing or dose independently affects 30-day all-cause mortality.

Background: Preoperative ASA administration is associated with reduced morbidity and mortality after coronary artery bypass graft (CABG). However, data are lacking regarding optimal timing and dosing of ASA.

Left atrial dissection after left ventricular aneurysm repair.

Left atrial (LA) dissection is an uncommon entity that occurs most often after mitral valve surgery. We present a case of a 52-year-old man who developed an LA dissection after repair of a postinfarction left ventricular (LV) aneurysm. Transesophageal echocardiography was used to establish the diagnosis of an LA dissection that almost completely occluded the LA, limiting LV filling and causing hemodynamic instability.