摘要
１７８例原发性心肌病及１９例猝死分析表明：（１）持续性室性心动过速（室速）者猝死率５５．２％（１６／２９），非持续性室速者猝死率５．４％（３／５６）；（２）心室程序刺激诱发持续性室速阳性者猝死率５２．６％（１０／１９），诱发阴性者猝死率１０％（２／２０）；（３）心室晚电位（ＶＬＰ）阳性者猝死率５３．３％（８／１５），ＶＬＰ阴性者猝死率１１．１％（２／８）；（４）扩张型心肌病（ＤＣＭ）测量猝死者生前右室流出道平均３．７６±０．１９ｃｍ，明显大于ＤＣＭ存活者（平均２．９４±０．２９ｃｍ）。可见自发和诱发持续性室速、ＶＬＰ阳性、右室流出道扩张等均提示心肌病猝死高危因素。
Abstract In 178 patients with idopathic cardiomyopathy , the risk factor stratifications of sudden death (SD) were analysed. Among them, 19 cases died suddenly.55. 2% (16/29) of patients with SD had a history of recurrent sustained ventricular tachycardia (S-VT). The incidence of SD in the patients with recurrent non-sustained ventricular tachycardia (nonS-VT) was 5. 36% (3/56). Programmed electrical stimulation (PES) was performed in 39 patients with ventricular tachyarrhythmias (VT), 19 patients had inducible S-VT, SD occured in 10 patients (52. 6%). S-VTs were not induced in 20 patients, SD occured in only 2 patients (10%) . Signal-averaged ECG (SAECG) was studied in 33 patients with VT. The late potenitials (LPs) were demonstrated in 15 cases, in which 8 cases suffered SD (53. 3%). The SAECG was normal in 18 cases , SD occured in only 3 cases (16. 6%). The right ventricular out-flow tract studied by echocardiogram was greater in SD group than in non-SD group. This study has demonstrated that S-VT occured spontaneouly or induced by PES, positive LPs and RV dilation may predict the risk to arrhythmogenic SD in patients with idiopathic cardiomyopathy.
出处
《中华心血管病杂志》
CAS
CSCD
北大核心
1994年第5期363-365,共3页
Chinese Journal of Cardiology
