Evaluation of right ventricular function during aortic operations.
Arch Surg
; 128(5): 582-4; discussion 585, 1993 May.
Article
en En
| MEDLINE
| ID: mdl-8489393
The simultaneous measurements of mixed venous oxygen saturation (SvO2) and right ventricular ejection fraction (RVEF) have now made it possible to precisely define and correlate the various hemodynamic changes that occur during abdominal aortic operations. Twenty-five patients undergoing infrarenal abdominal aortic aneurysm repair were examined with a pulmonary artery catheter capable of continuously measuring SvO2 and RVEF. With aortic clamping, significant reductions in cardiac index, stroke volume index, and right ventricular end-diastolic volume index (RVEDVI) were noted, while RVEF remained unchanged. Following unclamping of the aorta, a significant reduction in SvO2 occurred, accompanied by an increase in mean pulmonary artery pressure and in pulmonary vascular resistance. Despite the increase in afterload, RVEDVI and RVEF did not change after unclamping. These preliminary data suggest that right ventricular function is preserved during abdominal aortic aneurysm repair.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Volumen Sistólico
/
Gasto Cardíaco
/
Función Ventricular Derecha
/
Aneurisma de la Aorta Abdominal
Límite:
Aged
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Arch Surg
Año:
1993
Tipo del documento:
Article
Pais de publicación:
Estados Unidos