Utility of a bedside Doppler in tracking left ventricular dysfunction related to hemorrhagic shock.
Am Surg
; 63(8): 747-51, 1997 Aug.
Article
em En
| MEDLINE
| ID: mdl-9247447
ABSTRACT
Treatment of hemorrhagic shock with fluid resuscitation alone results in diastolic dysfunction as measured by peak systolic pressure/end systolic volume ratio (PSP/ESV). The purpose of this study was to test the ability of a simple Doppler device to track diastolic dysfunction in hemorrhagic shock. In this prospective, controlled crossover study, five adult swine were resuscitated from hemorrhagic shock using fluids. Diastolic dysfunction was confirmed using PSP/ESV ratio. The effect of nitroprusside and dobutamine on this diastolic dysfunction was evaluated. Data (PSP/ESV, Doppler-derived acceleration, and oxygen transport parameters) were collected at each stage of the model. Arterial pressure and oxygen transport parameters corrected to baseline values; however, the PSP/ESV and Doppler-derived acceleration failed to correct with fluid resuscitation alone. Treatment with nitroprusside and dobutamine increased oxygen transport parameters, PSP/ESV ratio, and Doppler-derived acceleration significantly. Doppler-derived acceleration tracks left ventricular dysfunction seen in hemorrhagic shock.
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Base de dados:
MEDLINE
Assunto principal:
Choque Hemorrágico
/
Disfunção Ventricular Esquerda
/
Ultrassonografia Doppler
/
Monitorização Ambulatorial
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Limite:
Animals
Idioma:
En
Revista:
Am Surg
Ano de publicação:
1997
Tipo de documento:
Article
País de afiliação:
Estados Unidos