Comparison of Doppler echocardiography, color M-mode Doppler, and Doppler tissue imaging for the estimation of pulmonary capillary wedge pressure.
To overcome the limitations of mitral inflow parameters for predicting pulmonary capillary wedge pressure (PCWP), combined indices (with Doppler tissue imaging or color M-mode Doppler) have been developed. This study was aimed to compare the accuracy of these indices to predict PCWP. Sixty-one patients were studied. The best correlations with PCWP were found for indices that combined isovolumic relaxation time with flow propagation velocity (color M-mode) or early diastolic velocity of the lateral mitral annulus (Doppler tissue). Both closely tracked changes in PCWP. The color M-mode-derived index was the most accurate in patients with normal systolic function.
González-Vilchez
Francisco
F
Servicios de Cardiología y Medicina Intensiva, Hospital General Yagüe, Burgos, Spain. carvtj@humv.es
Ayuela
José
J
Ares
Miguel
M
Mata
Nuria Sánchez
NS
González
Amparo García
AG
Durán
Rafael Martín
RM
D000368:Aged; D001783:Blood Flow Velocity / Q000502:physiology; D015150:Echocardiography, Doppler; D005260:Female; D006801:Humans; D007089:Image Enhancement; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology; D011237:Predictive Value of Tests; D011667:Pulmonary Veins / Q000000981:diagnostic imaging / Q000503:physiopathology; D011669:Pulmonary Wedge Pressure / Q000502:physiology*; D012720:Severity of Illness Index; D013030:Spain; D013223:Statistics as Topic; D013318:Stroke Volume / Q000502:physiology; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis / Q000503:physiopathology; D016277:Ventricular Function, Left / Q000502:physiology