冠心病患者经皮冠状动脉介入治疗前后缺血性J波变化

[Ischemic J wave changes before and post percutaneous coronary intervention in patients with coronary artery disease].

作者信息

Guo Wu-yi, Li Bao, Guo Na, Wang Hong-yu

机构信息

Shanxi Cardiovascular Hospital, Taiyuan 030024, China.

出版信息

Zhonghua Xin Xue Guan Bing Za Zhi. 2010 Oct;38(10):891-4.

PMID:21176631

Abstract

OBJECTIVE

To observe the incidence of ischemic J wave before and post percutaneous coronary intervention (PCI) in patients with coronary heart disease (CHD).

METHODS

CHD patients (n = 117) underwent percutaneous coronary intervention (PCI) in Shanxi cardiovascular hospital were included in this study. The 12-lead ECGs were recorded within 24 hours before and after PCI. The ischemic J waves of five lead-groups (II, III, aVF group: V(1), V(2) group; V(3), V(4) group; V(5), V(6) group;I, aVL group) were analyzed and the number of lead-groups with J waves (0 - 5) were obtained in each patient. According to time course or wave amplitude, J waves were classified into three grades: small (time course between 0.02 - 0.03 s or wave amplitude between 0.05 - 0.09 mV), large (time course between 0.04 - 0.06 s or wave amplitude between 0.10 - 0.20 mV) and enormous (time course > 0.06 s or wave amplitude > 0.20 mV) J waves.

RESULTS

The number of lead-groups with ischemic J waves (0 - 5) in each patient was similar between pre and post PCI in the 117 patients (χ(2) = 6.23, P = 0.285). The numbers of small, large and enormous J waves were 157, 36 and 9 respectively before PCI and 163, 20 and 5 after PCI. The incidence of small J waves increased (77.72% vs. 86.70%) while large and enormous J waves decreased (17.82%, 4.46% vs. 10.64%, 2.66%) post PCI (χ(2) = 5.28, P < 0.05).

CONCLUSIONS

The numbers of lead-groups with ischemic J waves were similar before and post PCI. However, the amplitude of ischemic J waves decreased after PCI suggesting PCI could improve ischemic J waves in CHD patients.

摘要

目的

观察冠心病（CHD）患者经皮冠状动脉介入治疗（PCI）前后缺血性J波的发生率。

方法

本研究纳入在山西心血管病医院接受经皮冠状动脉介入治疗（PCI）的冠心病患者（n = 117）。在PCI前后24小时内记录12导联心电图。分析五个导联组（II、III、aVF组；V(1)、V(2)组；V(3)、V(4)组；V(5)、V(6)组；I、aVL组）的缺血性J波，并得出每位患者出现J波的导联组数（0 - 5）。根据时程或波幅，将J波分为三个等级：小（时程在0.02 - 0.03秒之间或波幅在0.05 - 0.09毫伏之间）、大（时程在0.04 - 0.06秒之间或波幅在0.10 - 0.20毫伏之间）和巨大（时程>0.06秒或波幅>0.20毫伏）J波。

结果

117例患者PCI前后每位患者出现缺血性J波的导联组数（0 - 五）相似（χ(2)=6.23，P = 0.285）。PCI前小、大、巨大J波的数量分别为157、36和9，PCI后分别为163、20和5。PCI后小J波的发生率增加（77.72%对86.70%），而大J波和巨大J波的发生率降低（17.82%，4.46%对10.64%，2.66%）（χ(2)=5.28，P<0.05）。