Role of intraventricular dispersion of early diastolic filling in indicating left ventricular diastolic dysfunction: assessment by color M-mode inflow propagation velocity.
The intraventricular to mitral E velocity ratio (IvE/MvE) and the color M-mode Doppler inflow propagation velocity (LVIPV) were evaluated in 36 healthy controls and 33 patients with hypertension and/or ischemic heart disease. The intraventricular E velocity was significantly lower than the mitral E velocity in the control group (52 vs. 68 cm/s, p < 0.001), but they are similar in the disease group (59 vs. 63 cm/s, p = nonsignificant). Compared with the control group, the disease group had a higher IvE/MvE (0.95 +/- 0.28 vs. 0.78 +/- 0.23, p < 0.01). Nevertheless, the LVIPV was not significantly different between the disease and control groups (53 +/- 14 vs. 56 +/- 13 cm/s, p = nonsignificant). The LVIPV did not correlate with the IvE/MvE (r = 0.202, p = nonsignificant). Therefore, an intraventricular dispersion of early diastolic filling does not seem to indicate impaired left ventricular relaxation.
Voon
W C
WC
Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
Huang
C H
CH
Sheu
S H
SH
D000293:Adolescent; D000328:Adult; D000368:Aged; D001783:Blood Flow Velocity / Q000502:physiology*; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000503:physiopathology; D003971:Diastole / Q000502:physiology*; D018618:Echocardiography, Doppler, Color; D005260:Female; D006801:Humans; D006973:Hypertension / Q000000981:diagnostic imaging / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging* / Q000503:physiopathology; D016277:Ventricular Function, Left / Q000502:physiology