Computer Simulation of Hemodynamic Parameter Changes by Mechanical Ventilation and Biventricular Circulatory Support

M. Darowski; De C. Lazzari; G. Ferrari; F. Clemente; M. Guaragno

doi:10.1055/s-0038-1634451

Methods of Information in Medicine, Inhaltsverzeichnis

Methods Inf Med 2000; 39(04/05): 332-338
DOI: 10.1055/s-0038-1634451

Original Article

Schattauer GmbH

Computer Simulation of Hemodynamic Parameter Changes by Mechanical Ventilation and Biventricular Circulatory Support

M. Darowski

¹Institute of Biocybernetics and Biomedical Engineering PAN, Warsaw, Poland

,

De C. Lazzari

²CNR, Istituto di Tecnologie Biomediche, Rome, Italy

,

G. Ferrari

²CNR, Istituto di Tecnologie Biomediche, Rome, Italy

,

F. Clemente

²CNR, Istituto di Tecnologie Biomediche, Rome, Italy

,

M. Guaragno

²CNR, Istituto di Tecnologie Biomediche, Rome, Italy

› Institutsangaben

Abstract

Abstract:

When a Bi-Ventricular Assist Device (BVAD) is used in conjunction with mechanical ventilation (MV) of the lungs with positive intrathoracic pressure (Pt), the latter influences hemodynamics. The aim of our study was to assess the simultaneous influence of BVAD and MV on hemodynamics. We assumed ventricular pathological conditions as reduced elastances and increased rest volumes. Peripheral systemic arterial resistance was assumed to have different values. Data were obtained by computer simulation. Trends in main hemodynamic variables were compared with clinical data from literature. Simulation showed that systemic venous, pulmonary arterial and left atrial pressures are very sensitive to Pt (-2 to 5 mmHg).

Keywords

Computer Simulation - Biventricular Assist Device - Mechanical Ventilation - Hemodynamics

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Referenzen

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