本文报告尼日利亚2例与长期服用氯喹有关的心脏传导阻滞。例1.患者男性,37岁。1976年入院。自1974年始,曾有4次意识丧失史,其中1次并有肢体抽搐。每次发作持续3～4分钟。患者过去无头部损伤史或家属癫(?)虫,亦无烟酒嗜好。体检神经肌肉系统无异常。脉率82次/ This article reports two cases of heart block associated with long-term use of chloroquine in Nigeria. Example 1. Patient Male, 37 years old. Admitted to hospital in 1976. Since 1974, there have been four episodes of loss of consciousness, including one with limb twitching. Each episode lasts 3 to 4 minutes. The past history of patients without head injury or family members epilepsy (?) Insects, alcohol or tobacco-free hobby. Physical examination neuromuscular system no abnormalities. Pulse rate 82 times /