期刊文献+

发生室性心律失常的耐力运动员中右室射血分数下降:定量血管造影评估

Reduced right ventricular ejection fraction in endurance athletes presenting with ventricular arrhythmias:A quantitative angiographic assessment
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摘要 目的:耐力运动员中的自发性或诱发性持续室性心律失常(VA)常起源于右室(RV),即使在无家族性致心律失常性RV心肌病(ARVC)的情况下亦是如此。本研究拟确定在此类患者中RV易致心律失常的特性是否与RV功能异常具有相关性。方法和结果:对以下三组进行双平面RV血管造影:22例有VA的耐力运动员、15例无VA的匹配运动员和10例无VA的非运动员。共采用4种RV血管造影定量分析方法(面积一长度法、Boak法、单平面锥体法和双平面锥体法)计算RV舒张期末容积(EDV)、收缩期末容积(ESV)(均经体表面积校正)和射血分数(EF)。 Aims: Spontaneous or inducible sustained ventricular arrhythmias(VA) in endurance athletes frequently originate from the right ventricle(RV), even in the absence of familial arrhythmogenic RV cardiomyopathy(ARVC) . The goal of this study was to determine whether the RV arrhythmogenic predilection in these patients is associated with RV functional abnormalities. Methods and results: Biplane RV angiography was performed in three groups: 22 endurance athletes with VA, 15 matched athletes without VA, and 10 non-athletes without VA. Four methods for ,quantitative RV angiographic analysis(area length, Boak, pyramid monoplane, and pyramid biplane) were used to calculate RV end-diastolic volume(EDV) and end-systolic volume(ESV) (both corrected for body surface area) and ejection fraction(EF) . In addition RV outflow tract shortening fraction(SF) was determined.
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