Lyme病是蜱传播的螺旋体感染,以慢性游走性红斑和急性全身性疾病为特征。该病在美国东北部许多地区流行。如果不治疗,后期常常发生关节炎、神经系统和心脏并发症。作者在流行区发现4例原先健康的男性(平均45岁),经血清学证实为 Lyme 心肌炎。4例房室传导阻滞均伴明显症状,其中3例曾有长时间心室停搏。2例植入了永久性起搏器。4例患者经抗菌素治疗后均恢复呈 Lyme disease is a tick-borne spirochete infection characterized by chronic migratory erythema and acute systemic disease. The disease is prevalent in many parts of the northeastern United States. If left untreated, arthritis, nervous system and cardiac complications often occur late. In the endemic area, the authors found four previously healthy men (mean age 45 years) and confirmed serologically Lyme myocarditis. 4 cases of atrioventricular block were accompanied by obvious symptoms, of which 3 cases had a long time ventricular arrest. Two patients had a permanent pacemaker implanted. Four patients recovered after antibiotic treatment