August 31, 2011 — Medtronic Inc. announced the start of its United States post-approval study of the Endurant AAA stent graft system, a medical device used to treat abdominal aortic aneurysms (AAA).

August 31, 2011 — A recent study revealed more than 1,000 cardiac arrest deaths over 15 years are connected to the failure of automated external defibrillators (AEDs); battery failure accounted for almost one-quarter of the failures. The study was published online last week in Annals of Emergency Medicine ("Analysis of Automated External Defibrillator Device Failures Reported to the Food and Drug Administration").

August 30, 2011 – Primary percutaneous coronary intervention (PCI) is the best reperfusion therapy for patients presenting with acute ST-elevation myocardial infarction. Researchers used the Western Denmark Heart Registry to describe the implementation of primary PCI in Denmark. Their study (including almost 10,000 patients) showed that a strategy with early diagnosis, based on electrocardiogram (ECG) recording in the ambulance and directing the patients straight to the catheterization laboratory in the primary PCI center, was associated with a lower mortality. The data was presented this week at the annual meeting of the European Society of Cardiology (ESC) in Paris.