Correlation of the myocardial performance index with conventional echocardiographic indices of systolic and diastolic function: a study in cardiac surgical patients.
Echocardiography
; 24(1): 26-33, 2007 Jan.
Article
en En
| MEDLINE
| ID: mdl-17214619
BACKGROUND: The aim of this investigation was to compare the myocardial performance index (MPI), a Doppler-derived parameter of global ventricular function, with standard echocardiographic measures of systolic and diastolic function in patients undergoing coronary artery bypass graft (CABG) surgery. METHODS: Complete two-dimensional and Doppler examinations were performed on 46 CABG patients after induction of anesthesia (baseline), 15 minutes postcardiopulmonary bypass (CPB), and at the end of the surgical procedure. RESULTS: A strong inverse correlation between MPI and both fractional area change (adjusted r(2)= 0.588-0.802) and ejection fraction (adjusted r(2)= 0.576-0.656, both P < 0.001) of the left ventricle was observed throughout the intraoperative period. Following CPB, a weaker correlation was observed between MPI and overall diastolic heart function classification (adjusted r(2)= 0.224-0.268, P <0.001). Weak, though statistically significant, correlations were observed between MPI and deceleration time (P < 0.05), peak atrial reversal (AR) wave velocity (P < or =0.002), and duration of the AR wave (P < 0.05). CONCLUSION: Our data suggest that the MPI correlates well with standard echocardiographic measures of systolic function and modestly well with overall diastolic heart function classification. The MPI may be a useful, complementary marker of global left ventricular function in patients undergoing CABG surgery.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Puente de Arteria Coronaria
/
Función Ventricular
/
Ecocardiografía Transesofágica
Tipo de estudio:
Prognostic_studies
Límite:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Echocardiography
Asunto de la revista:
CARDIOLOGIA
/
DIAGNOSTICO POR IMAGEM
Año:
2007
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Estados Unidos