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文氏现象是传导阻滞的一种表现形式,是以相对不应期病理性延长为主的传导阻滞。它的特点是传导速度进行性延迟,终于使激动不能通过而产生漏搏。文氏现象可发生在传导系统各个部位,以房室交界区最为常见。下行或逆行传导均可出现.本文介绍一例阵发性交界区心动过速伴Ⅱ°文氏型前向传导阻滞。病例报告患者男性,71岁。住院号157753。慢性咳嗽史30余年。近一年来气急、咳嗽严重。最近二天来咳嗽、气急加剧伴神志不清。于1980年5月21日入院。体检:神志不清,面色苍白,角膜水肿,四肢厥冷,冷汗淋漓,血压测不清,胸呈桶状胸,叩诊心浊音界缩小,心尖区心音低弱,心律不齐有漏搏,心率120次/分,未闻及病理性杂音。胸
Wen’s phenomenon is a manifestation of conduction block, is based on the relative non-refractory disease-based delay block. It is characterized by the progressive delay of conduction velocity, and finally can not pass through the excitement resulting in leakage stroke. Wen’s phenomenon can occur in various parts of the conduction system to the atrioventricular junction area is the most common. Downstream or retrograde conduction may occur.This article describes a case of paroxysmal junctional tachycardia with Ⅱ ° Venturi forward conduction block. Case report Male patient, aged 71. Hospital number 157753. Chronic cough history of more than 30 years. In recent years, shortness of breath, severe cough. Cough in recent days, aggravating with unconsciousness. Admitted to hospital on May 21, 1980. Physical examination: unconscious, pale, corneal edema, extremities Jueleng, cold sweat dripping, unclear blood pressure, thorax was barrel-shaped chest, Percussion heart dullness narrowing, low apex heart sound, arrhythmia missed leakage, heart rate 120 beats / min, no smell and pathological murmur. chest