TY - JOUR T1 - Coronary artery flow velocity profile measured by transthoracic Doppler echocardiography predicts myocardial viability after acute myocardial infarction JF - Heart JO - Heart SP - 456 LP - 457 DO - 10.1136/hrt.2006.094995 VL - 93 IS - 4 AU - Antti Saraste AU - Juha W Koskenvuo AU - Markku Saraste AU - Jussi Pärkkä AU - Jyri Toikka AU - Alexandru Naum AU - Heikki Ukkonen AU - Juhani Knuuti AU - Juhani Airaksinen AU - Jaakko Hartiala Y1 - 2007/04/01 UR - http://heart.bmj.com/content/93/4/456.abstract N2 - Objective: To study whether flow velocity profile in the left anterior descending coronary artery (LAD) measured by transthoracic Doppler echocardiography (TTDE) predicts myocardial viability after reperfused anterior acute myocardial infarction (AMI). Patients and methods: 15 patients who had their first anterior ST elevation AMI and were successfully reperfused by coronary angioplasty and five controls without coronary artery disease were selected. Blood flow velocity spectrum was measured from the mid-LAD by TTDE 3 days after coronary angioplasty. Myocardial viability in the LAD region was quantified 3 months after AMI by relative uptake of 18F-fluorodeoxyglucose (FDG) imaged with positron emission tomography. Myocardium was graded as viable, partially viable or non-viable (relative FDG uptake >85%, 67–85% and <67%, respectively). Main outcome measures were diastolic deceleration time (DDT) of LAD flow velocity 3 days after AMI and myocardial viability 3 months after AMI. Results: DDT of LAD flow velocity correlated with myocardial FDG uptake in the LAD region (r = 0.91, p<0.01). DDT was markedly longer in patients with viable myocardium (876±76 ms, n = 3) than partially viable (356±89 ms, n = 6, p<0.01), or non-viable myocardium (128±13 ms, n = 6, p<0.01). In controls, DDT was comparable (909±76 ms, n = 5) to patients with viable myocardium. DDT <190 ms was always associated with non-viable myocardium. Conclusions: DDT of LAD flow velocity is strongly associated with myocardial viability after reperfused anterior AMI. Non-invasive TTDE of the LAD may be used in the acute phase to predict long-term viability of the jeopardised myocardium. ER -