Detection of severe stenosis and total occlusion in the left anterior descending coronary artery with transthoracic Doppler echocardiography in the emergency room

Echocardiography
Tomoko TaniYasuki Kihara

Abstract

The noninvasive measurement of coronary flow velocity in the left anterior descending artery (LAD) has recently been realized by using the transthoracic Doppler echocardiography (TTDE). A couple of investigations demonstrated that the diastolic-to-systolic peak velocity ratio (DSVR) by TTDE is a simple and noninvasive method for the detection of severe stenosis in the elective settings. However, the usefulness of DSVR by TTDE in the emergency settings has not been evaluated. The purpose of this study was to assess the clinical feasibility to document the LAD flow by TTDE in emergency patients who complained of chest pain. We studied 49 consecutive patients with acute coronary syndrome who were going to undergo emergency coronary angiography (CAG) for the anatomical diagnosis and the facilitated percutaneous coronary intervention (PCI). Prior to CAG, we recorded the LAD flow by TTDE and measured the diastolic peak velocity (DVp), systolic peak velocity (SVp), and their ratio, DSVR (DVp/SVp) of LAD flow. By CAG, the culprit lesions actually resided in the proximal LAD in 36 patients. Among the 36 patients, we detected the Doppler LAD flow in 29. Five out of 7 patients who were unable to detect the LAD flow revealed total occlusio...Continue Reading

References

Dec 7, 2000·Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions·UNKNOWN American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee on the Management of
May 12, 2001·The American Journal of Cardiology·S HigashiueJ Yoshikawa
Oct 10, 2002·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Yoshiki UenoAkira Soma
Jan 31, 2004·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Kumiko HirataJunichi Yoshikawa
Apr 29, 2006·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Hiroyuki OkuraJunichi Yoshikawa

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Citations

Oct 31, 2012·Cardiovascular Journal of Africa·Shokoufeh HajsadeghiSaeid Gholami
Jun 15, 2011·Annales de cardiologie et d'angéiologie·C JeannotM Giraud
Nov 13, 2012·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Espen HolteRune Wiseth

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