心绞痛的自然缓解率对评价临床治疗极为重要。本文报告Framingham地区对心绞痛自然缓解率及其预后意义的20年随访研究。方法:心绞痛的发生是根据常规每二年一次检查中的内科病史。随访相当良好,每次调查有85％回答;死亡随访更为完善,仅2％失访。仅稍多于半数的心绞痛患者为了缓解症状而接受药物治疗;无1例作过心脏手术。持续性无并发症心绞痛是指 The natural rate of angina pectoris is critically important for the evaluation of clinical treatment. This article reports a 20-year follow-up study of the natural response to angina in Framingham and its prognostic significance. Method: The occurrence of angina pectoris was based on the medical history of the regular bi-annual examination. Follow-up was quite good with 85% of respondents responding to each survey; better follow-up of deaths and only 2% loss of follow-up. Only slightly more than half of patients with angina received medication to relieve the symptoms; none of them had a heart surgery. Persistent non-complication angina refers to