目的探讨不稳定型心绞痛的临床特征与治疗方法。方法将济源市肿瘤医院诊治的80例不稳定型心绞痛患者随机将其分为对照组(给予常规治疗)和观察组(在常规治疗基础上加用倍他乐克治疗),每组各40例,观察并比较其疗效。结果 40例对照组患者中,13例显效,21例有效,6例无效;40例观察组中,22例显效,17例有效,1例无效。与对照组总有效率(80.0%)相比,观察组的总有效率(97.5%)明显增高,差异有统计学意义(P<0.05)。两组患者治疗期间均未出现严重的并发症。结论对于不稳定型心绞痛患者,倍他乐克能明显提高临床疗效,值得临床广泛推广。 Objective To investigate the clinical features and treatment of unstable angina pectoris. Methods Totally 80 patients with unstable angina pectoris diagnosed and treated in Jiyuan Cancer Hospital were randomly divided into control group (given routine treatment) and observation group (treated with metoprolol on the basis of routine treatment), 40 cases in each group , Observe and compare its efficacy. Results Of the 40 patients in the control group, 13 were markedly effective, 21 were effective and 6 were ineffective. Of the 40 observation groups, 22 were effective, 17 were effective and 1 was ineffective. Compared with the total effective rate (80.0%) in the control group, the total effective rate (97.5%) in the observation group was significantly higher (P <0.05). No serious complications occurred in both groups during treatment. Conclusion For patients with unstable angina pectorat can significantly improve the clinical efficacy, it is widely recommended in clinical.