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|本期目录/Table of Contents|

冠状动脉狭窄老年患者PTCA 术后QT 离散度变化(PDF)

《心脏杂志》[ISSN:1009-7236/CN:61-1268/R]

期数:
2002年第2期
页码:
149-151
栏目:
临床研究
出版日期:
2002-03-01

文章信息/Info

Title:
Changes of QT dispersion in elderly patients with coronary stenosis after percutaneous coronary angioplasty
作者:
卢海清1;  谢志泉1;  黄翠瑶1;  刘伊丽31;  邱　健2;  贾满盈3;  侯玉清3
广州军区总医院: 1. 老年病四科, 2. 心内科, 广东 广州 510010; 3. 南方医院心内科
Author(s):
LU Hai-qing1;  XIE Zhi-quan1;  HUANG Cui-yao1; LIU Yi-li3; QIU Jiang2;  JIA Man-ying3;  HOU Yu-qing3
1.Fourth Department of Gerontology,Liu Hua Qiao Hospital, Guangzhou, Guangdong 510010,China
关键词:
血管成形术;  经腔;  经皮;  冠状动脉;  QT 离散度;  冠状动脉狭窄;  老年人
Keywords:
angioplasty;  transluminal;  percutaneous; QT dispersion;  Coronary stenosis;  aged
分类号:
R540.1
DOI:
-
文献标识码:
A
摘要:
目的 观察冠状动脉成形术(PTCA)对老年冠脉狭窄患者心肌复极的影响.方法 连续测量了68例冠状动脉狭窄老年患者PTCA术前术后体表心电图的QT间期与QT离散度(QTd),并与53例无狭窄对照组比较.结果 冠状动脉狭窄组较无狭窄组QT间期显著延长,QTd明显增加(QTmax分别为:453±43 ms和392±35 ms;QTcmax分别为:482±49 ms和439±37 ms;QTd为74±33 ms和 29±15 ms;QTcd为78±37 ms和32±17 ms,P<0.01);PTCA使QT间期缩短,QTd缩小(QTcmax:术前482±49 ms,术后1周为452±40 ms;QTcd在术前78±37 ms,术后24 h内63±26 ms,术后1周为60±32 ms;QTd在术前75±34 ms,术后24 h内为58±25 ms及术后1周56±31 ms,P<0.05).结论 心肌灌注增加明显缩短QTd离散度,表明心肌复极获得改善,这可能有利于减少心律失常的发生.
Abstract:
AIM To evaluate the effects of percutaneous coronary angioplasty(PTCA) on the myocardial repolarization in elderly patients with coronary artery disease. METHODS QT intervals and QT dispersions(QTd) measured from 12-lead standard surface ECG are consecutively assessed in the 68 patients with coronary stenosis intervened by PTCA,and compared with that in 53 ones without coronary stenosis.RESULTS Compared with control group.QT internal and QTd both significantly increased in coronary stenosis group(QTmax:453±43 ms vs 392±35ms;QTcmax: 482±49 ms vs 439±37 ms;QTd: 74±33 ms vs 29±15 ms;QTcd: 78±37 ms vs 32±17ms, P < 0. 01) ;While compared with pre-PTCA among the stenosis group ,QT in ternal and QTd both decreased after PTCA (QTcmax: pre-PTCA 482±49 ms vs 1 week post-PTCA 452±40 ms;QTcd: pre-PTCA 78±37 ms vs 24 hpost-PTCA 63±26 ms as well as week post-PTCA 60±32ms;QTd: pre-PTCA 75±34 ms vs24 hpost-PTCA 58±25 ms as well as 1 week post-PTCA 56±31 ms, P < 0. 05). CONCLUSION Myocardial perfusion enhancement by PTCA can effectively improve the myocardial repolarization in elderly patients with coronary stenosis.

参考文献/References

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备注/Memo

备注/Memo:
收稿日期：2001-01-11.
更新日期/Last Update: 2002-03-01