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发表于 2014-3-17 23:11:34
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请袁大夫结合3月17日-29间的病例回答下面的问题
本帖最后由 心超 于 2014-3-17 23:26 编辑
image tee cases echocardiogram
January 2014
January Question: In this patient with a history of a myocardial infarction, which coronary artery is most likely affected? Assuming there is no other major coronary disease, is the circulation right or left dominant? (Video clips 1,2,3) What about in the patient represented in video clip 4?
Video '1' (click to enlarge)
Video '2' (click to enlarge)
Video '3' (click to enlarge)
Video '4' (click to enlarge)
January answer: In first 3 clips, there is evidence of a basal inferior and posterior wall infarction. This implies RCA involvement with a right dominant circulation. The dominance means that the PDA or posterior descending artery, which supplies the posterior wall, originates from the RCA. In the last video clip the anterior, lateral and posterior walls are affected; this means that the left main coronary is affected and the circulation is left dominant, that is, the PDA comes off the circumflex. See image.
Answer Image '1' (click to enlarge) |
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