Clinical hemodynamic performances of 21-mm and 23-mm St Jude Medical Hemodynamic Plus valves correspond closely with those of standard cuff valves, and gradients are substantially better than those of standard cuff valves of the same diameter. Therefore, use of this valve may minimize the need for aortic anulus enlargement. Early follow-up results with the Hemodynamic Plus valves were excellent, although more time is required to confirm this outcome.
Iatrogenic left main coronary artery and aortic root dissection are rare complications during coronary catheterization. A case of catheter-induced left main coronary artery dissection with subsequent retrograde progression into the ascending aorta wall is reported. The patient was surgically managed with an ascending aorta replacement and left coronary ostial repair with an autologuos aortic wall ring-shaped patch in the paraostial position in order to seal the intimal tear.
A 74-year-old female had urgent surgery with replacement of the ascending aorta for acute type A dissection. Postprocedure, the electrocardiogram showed an ST-segment elevation myocardial infarction in the antero-lateral leads. Angiography revealed a thrombotic occlusion of the left anterior descending artery, treated successfully with bivalirudin administration, thrombus aspiration and a balloon angioplasty. This case involves the rare coexistence of acute type A aortic dissection and myocardial infarction due to coronary plaque thrombosis.
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