Usefulness of tissue doppler parameters to identify single-vessel circumflex lesion from non ST-elevation myocardial infarction

Shih Kai Lin, Shih Hung Hsiao, Kuan Rau Chiou, Wei Chun Huang, Hung Ru Huang, Feng You Kuo, Tao Yu Lee

研究成果: 雜誌貢獻文章同行評審

3 引文 斯高帕斯(Scopus)

摘要

Background: Some cases of left circumflex artery (LCX)-culprit infarction, even with single-vessel disease, may be non ST-elevation myocardial infarction (NSTEMI). This study was conducted to identify this group from other NSTEMI. Methods: Two hundred patients underwent coronary angiography for NSTEMI. Tissue Doppler imaging (TDI) measurements were performed simultaneously. Results: Most subjects had multi-vessel disease except for 13 patients with single-vessel LCX disease. The prevalence of diabetes, hypertension, and renal insufficiency in the group of single-vessel LCX disease was relatively low. Since left ventricular ejection fraction was preserved in the majority of subjects, the rates of respiratory failure, cardiogenic shock and high left ventricular filling pressure were lower in the group of single-vessel disease than that in the other NSTEMI patients. Therefore, the in-hospital mortality rate differed between these two groups (0% vs. 6%, respectively). By receiver operating characteristic curve analysis, lateral myocardial performance index (MPI) divided by mean MPI was a good indicator of single-vessel LCX disease (lateral MPI / mean MPI > 1.17, with sensitivity 92%, specificity 84%, and p < 0.0001). Conclusion: TDI is useful for identifying patients with single-vessel LCX disease.
原文英語
頁(從 - 到)38-45
頁數8
期刊Acta Cardiologica Sinica
27
發行號1
出版狀態已發佈 - 三月 1 2011
對外發佈Yes

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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