摘要
目的探讨阵发性心房颤动（PAF）患者的Macruz指数是否可作为心房颤动（AF）的预测指标。方法50例PAF患者和100名健康体检者入选，测量12导联心电图上Ⅱ导联的P波时限和P—R段时限，计算P／P—R段的值即为Macruz指数。比较分析PAF组和对照组的Macruz指数，将其分为≥1．4、≥1．6、≥1．8、≥2．0四个标准，评估各自的预测价值。结果PAF组和对照组两组间年龄、性别、心率比较差异无统计学意义（P〉0．05）；PAF组Macruz指数与对照组比较差异有统计学意义[（2．17±1．04）比（1．27±0．30），P〈0．01]。当Macruz指数≥1．6时有较高的灵敏度、特异度、阳性预测值和阴性预测值（分别为76％、85％、72％和88％）。结论Macmz指数在PAF组和病例组之间差异有统计学意义，当其≥1．6时应警惕房颤的发生。Macruz指数是可以用来预测房颤的简便、有效的心电图指标。
Objective To investigate whether Macruz index could be an independent potential risk marker for the atrial fibrillation （AF）. Methods The durations of P wave and P-R segment were measured on the Ⅱ - lead of 12-lead ECG in 50 patients with PAF and 100 healthy individuals, respectively. Then, the ratio of the P wave duration to P-R segment duration is the Macruz index. The Macruz index of the PAF group was compared with the control group, using the value≥ 1.4, ≥ 1.6, ≥ 1.8 and ≥2.0 as the criteria, and to evaluate their predicting value was evaluated. Results There was no difference in the age, gender or heart rate between PAF patients and the control （P〉0.05）, but the Macruz index was found to be significantly higher in patients with a history of PAF than the control [（2.17±1.04） vs （1.27±0.30）,P〈0.01]. The value of the Macruz index ≥1.6 had higher sensitivity, specificity, positive predictive value, and negative predictive value （76%, 85%, 72%, and 88%, respectively） than other criteria. Conclusion There is a statistical significant in Macruz index between the difference of the patients with PAF and the control, so precautions should be taken against the occurrence of AF when the Macruz index is ≥ 1.6, and it is a simple and efficient electrocardiogram index in predicting AF.
出处
《中国心血管病研究》
CAS
2010年第8期571-573,共3页
Chinese Journal of Cardiovascular Research
