Left ventricle diastolic function in the patients after coronary arteries bypass graft combined with left ventricle aneurismectomy according to tissue doppler imaging: one year follow-up.
OBJECTIVE
To evaluate left ventricle (LV) diastolic function dynamics in patients after acute myocardial infarction (AMI) after combined operation of coronary artery bypass graft with LV aneurismectomy (CABG + AE) according to the results of tissue Doppler imaging (TDI).


METHODS
Forty patients after AMI underwent Doppler echocardiography (EchoCG) with TDI and M-mode colour-flow imaging before and in 3 and 12 months after CABG + AE. Mitral annulus (MA) TDI with velocity indices was performed in 4 segments of LV.


RESULTS
Conventional transmitral diastolic Doppler indices before and after CABG + AE remained unchanged. TDI showed significant improvement of LV systolic (systolic movement velocity S: 6.1+/-0.8, 7.4+/-1.2 and 6.9+/-1.3 cm/sec. before and in 3 and 12 months after the operation, respectively, p<0.01) and diastolic function after the operation (MA early diastolic movement velocity (e'): 7.3 +/- 2.1, 8.4 +/- 1.5 and 8.9 +/- 1.8 cm/s.; ratio of transmitral early-flow velocity (E) to MA early-diastolic movement velocity (E/e'): 18.4 +/- 2.2, 12.3 +/- 1.8 and 11.5 +/- 2.3; ratio of E diastolic flow propagation velocity (Vp) 3.1 +/- 0.45, 2.2 +/- 0.38 and 1.8 +/- 0.16 before and in 3 and 12 months after the operation, respectively, p<0.01).


CONCLUSIONS
Results of the study demonstrate significant improvement of LV diastolic function in the patient after CABG + AE according to TDI, regardless of transmitral flow pattern. TDI is more sensitive and preload independent method of LV myocardial function evaluation.
Dolzhenko
Maryna N
MN
Shupik's National Medical Academy of Postgraduation Education, Chokolovskiy, 4, apt.9, Kiev, 03186 Ukraine. marinadolzhenko@mail.ru
Rudenko
S A
SA
Potashev
S V
SV
Simagina
T V
TV
Nosenko
N N
NN
Kravchenko
T G
TG
D017023:Coronary Angiography; D001026:Coronary Artery Bypass; D003971:Diastole; D015150:Echocardiography, Doppler; D005260:Female; D005500:Follow-Up Studies; D006322:Heart Aneurysm / Q000150:complications / Q000601:surgery*; D006352:Heart Ventricles / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications / Q000503:physiopathology / Q000601:surgery; D016277:Ventricular Function, Left