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Exercise-Induced Complete Atrioventricular Block: A Case Report

運動引發完全性房室傳導阻滯:病列報告

摘要


一位52歲男性,一年前曾接受過心導管的檢查及氣球擴張術,被轉介至核子醫学部接受鉈-201催迫性心肌灌注單一光子放射電腦斷層攝影,評估是否有心肌缺氧。病人在休息狀態時,心臟房室傳導均為正常;但是病人在履帶式運動結束約一分鐘後,出現完全性房室傳導阻滞约9.5秒而引發暈厥現象。病人的鉈-201催迫性心肌灌注單一光子放射電腦斷層攝影及冠狀血管攝影,均顯示無心臟缺血之變化。因此在本病案中,由於運動而引發的完全性房室傳導阻滞,可能肇因於藥物的作用、自律神經不平衡、或心臟傳導系統的疾病。

並列摘要


A 52-year-old man with normal atrioventricular(AV)conduction at rest who underwent percutaneous coronary angioplasty one year ago, was referred for a myocardial perfusion stress test for evaluation of possible ischemia. Complete AV block with long pause(9.5seconds)and syncope developed one minute after termination of exercise.Thallium-201 SPECT and coronary angiogram did not show significant ischemia. The cause of exercise-induced complete AV block in this case may be attributable to drug effect, autonomic imbalance, or conduction disease.

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