Analysis of predictive factors associated with no ST-segment resolution in patients underwent percutaneous coronary intervention for acute myocardial infarction
ZHANG Yun
HUANG Wen-zhu
XU Duan-min
CHEN Chang
Abstract：Objective To explore the predictors of no ST-segment resolution (no-STR) in patients who have underwent percutaneous coronary intervention(PCI) for acute myocardial infarction(AMI).Methods All 556 patients with ST-elevated AMI were divided into STR group (STR ≥50％,387 cases) and no STR group (STR ＜ 50％,169 cases).The situation of STR was detected before and after PCI,and the clinical data of patients were compared and analyzed.Results The clinical data had no significant difference (P ＞ 0.05),while the white blood cell count,the time from chest pain to reperfusion,the occurrence of acute anterior myocardial infarction and cardiac functions(killip ＞2) in no STR group were higher than those in STR group[(12.1 ±3.1) × 109/L vs(10.1 ± 2.3) × 109/L,(8 ±5)h vs(5 ±3)h,51.5％ (87/169) vs 32.1％ (124/387),43.8％ (74/169) vs 24.5％ (95/387)],and the occurrence of angina before myocardial infarction in no STR group was less than that in STR group [49.7％ (84/169) vs 69.0％ (267/387)],and there were significant differences (all P ＜ 0.05).Conclusion The no STR of patients with ST elevated AMI may be associated with hospitalized white blood cell count,occurrence of angina befor myocardial infarction,acute anterior myocardial infarction,the time from chest pain to reperfusion and hospitalized cardiac function(killip ＞ 2).
Keywords：Myocardial infarctionacutePercutaneous coronary interventionST-segment resolution
Publication Date：2013-01-01
Online Publishing Date：2026-09-14(First online date of this platform, not the publication date of the document)
Pages：3( 448-450 )