Persistent ST-segment elevation after percutanous coronary intervention reduce the late phase left ventricular function in acute anterior wall myocardial infarction
- VernacularTitle:急性前壁心梗经皮冠状动脉血运重建术后ST段持续抬高对心梗晚期左室功能的影响
- Author:
Likun MA
;
Hua YU
;
Xiangyang HUANG
- Publication Type:Journal Article
- Keywords:
Acute myocardial infarction;
Percutanous coronary intervention;
Electrocardiogram;
Left ventricular function
- From:
Journal of Interventional Radiology
2004;0(S2):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effect of persistent ST-segment elevation after successful direct percutanous coronary intervention (PCI) on the late phase of left ventricular (LV) systolic function in acute anterior wall myocardial infarction.Methods Serial electrocardiograms were record before PCI and 1 hour after reperfusion in 72 patients with acute anterior wall myocardial infarction. The reduction of ST-segment elevation after successful PCI more than 50% was defined as ST-segment resolution (ST reduction group). Persistent ST-segment elevation was defined as ≥50% of peak ST elevation (ST elevation group). Echocardiography was performed on 2 to 3 weeks (early phase) and 5 to 6 months(late phase)after PCI to evaluate the LV function and ventricular wall motion abnormality (VWMA). Results Fifty-three patients (74%) had early ST segment elevation resolution and 19 patients (26%) did not. The LV function and VWMA were similar in two groups during early phase. But during the late phase, ST elevation group patients had lower LVEF and higher LVEDVI, LVESVI, VWMA index compared with ST reduction group (P
