The effects of mechanical ventilation on the cardiovascular system.

Abstract:

:Positive-pressure ventilation may improve gas exchange, decrease the work-cost of breathing, and rest respiratory muscles, but it also will alter cardiac output and may modify blood flow distribution. Ventilation may induce these hemodynamic changes by altering systemic venous return to the RV (RV preload), pulmonary arterial pressure (RV afterload), ventricular interdependence (LV preload), or transmural LV ejection pressure (LV afterload). These interactions are magnified when the changes in lung volume and intrathoracic pressure are increased or under conditions associated with a reduced effective circulating blood volume or cardiac contractility. An understanding of these interactions is central to the effective management of the ventilator-dependent patient.

journal_name

Crit Care Clin

journal_title

Critical care clinics

authors

Pinsky MR

subject

Has Abstract

pub_date

1990-07-01 00:00:00

pages

663-78

issue

3

eissn

0749-0704

issn

1557-8232

journal_volume

6

pub_type

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