Simple detection of occluded coronary artery using retrograde flow in septal branch and left anterior descending coronary artery by transthoracic doppler echocardiography at rest - 24/08/11
, Takeshi Hozumi, MD a, Koutaro Tokai, MD a, Ryo Otsuka, MD a, Kouhei Fujimoto, MD a, Kenei Shimada, MD a, Takashi Muro, MD a, Minoru Yoshiyama, MD a, Junichi Yoshikawa, MD, FACC aAbstract |
Background |
We hypothesized that coronary flow assessment by transthoracic Doppler echocardiography (TTDE) for both intramyocardial collateral channel and epicardial channels would be useful for identifying occluded left anterior descending coronary artery (LAD).
Methods |
We assessed flow direction in the LAD and the septal branch (SEP) by TTDE in 302 consecutive patients who were suggested to have ischemic heart disease. We defined antegrade LAD flow as a direction from the base to the apex of the left ventricle in the anterior groove area, and antegrade SEP flow as a direction from anterior to inferior in the anterior interventricular septum. By contrast, we defined retrograde LAD and SEP flow as an inverse direction. We performed angiography on all patients.
Results |
Retrograde flow was detected in 22 (LAD, 16 patients; SEP, 6 patients) of 23 patients with occluded LAD, and antegrade flow was detected in all patients without occluded LAD. The sensitivity and specificity for identification of occluded LAD by TTDE were 96% and 100%, respectively.
Conclusions |
Assessment of flow direction in both LAD and SEP by TTDE is a useful method in identification of occluded LAD.
Le texte complet de cet article est disponible en PDF.Plan
Vol 17 - N° 2
P. 108-113 - février 2004 Retour au numéro
Article précédent
- Fixed-apex mitral annular descent correlates better with left ventricular systolic function than does free-apex left ventricular long-axis shortening
- Filiberto Rodriguez, Frederick A. Tibayan, Julie R. Glasson, David Liang, George T. Daughters, Neil B. Ingels, D.Craig Miller
- Pharmacologic stress echocardiography predicts total mortality early after acute myocardial infarction
- Rosa Sicari, Eugenio Picano, Patrizia Landi, Emilio Pasanisi, Lucia Venneri, on behalf of the Echo-Persantine International Cooperative (EPIC) and Echo-Dobutamine International Cooperative (EDIC) Study Groups
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Déjà abonné à cette revue ?