男56岁。患慢性肾功能不全,尿毒症。住院期间出现心慌、胸闷.听诊有频发早搏,行心电图检查。Ⅱ导联连续记录示:①窦性心律;②室性早搏,每个早搏的配对间期固定,提示可能为折返性室早。仔细观察发现,室早之间的窦性激动引起的搏动为奇数,1,3……,符合2n+1(n≥0)隐匿性二联律的规律。同时记录的Ⅲ导联图形示:室早配对间期不固定,后者为室性融合波,符合室性并行收缩。 隐匿性重性早搏较少见,与室性并行收缩相伴发者更为罕见。1963年Schamroth和Marriott首先提出隐匿性室性早搏这个概念,其后国内外均有零星报道。一般认为隐匿性室性早搏二联律是隐匿性折返引起的,其折返途径内存在着两个阻滞区,一处存在着固定 Male 56 years old. Chronic renal insufficiency, uremia. During hospitalization, palpitation, chest tightness. Auscultation frequent premature beats, line ECG. Ⅱ lead continuous recording shows: ① sinus rhythm; ② premature ventricular contractions, each premature paired fixed period, suggesting that reentrant room may be early. Careful observation revealed that sinus beats between rooms early as the odd number of pulsations, 1,3 ..., in line with 2n + 1 (n ≥ 0) occult bipolar law. At the same time recorded Ⅲ leads graph shows: Room early matching interval is not fixed, the latter for ventricular fusion wave, consistent with ventricular contraction in parallel. Occult severe premature beats are rare, accompanied by ventricular contraction parallel more rare. In 1963 Schamroth and Marriott first proposed the concept of occult ventricular premature beats, followed by sporadic reports both at home and abroad. Generally believed that occult premature ventricular bicompartmental law is occult reentry caused by its return path exists in two blocks, there is a fixed