Subscribe to RSS
DOI: 10.1055/s-2000-9847
Techniques for Automated Feedback Control of Mechanical Ventilation
Publication History
Publication Date:
03 March 2004 (online)

ABSTRACT
Mechanical ventilators have become more sophisticated with the advent of microprocessor control. Advances in monitoring have also improved our ability to harmonize patient-ventilator interaction. The next obvious step in this technologic progression is to turn over some decision making to the ventilator. In the jargon of today, we are ``closing the loop.'' Ventilators have used closed-loop control for simple tasks for the last decade. Newer closed-loop processes include modes that increase or decrease support based on a single-monitored variable. An example is the automated control of pressure support to maintain a deired tidal volume. More sophisticated closed-loop techniques, such as proportional assist ventilation and adaptive support ventilation, not only monitor multiple input variables but also use closed-loop control of several variables. This article reviews the closed-loop ventilation modes currently available to clinicians.
KEYWORD
Mechanical ventilation - closed-loop mechanical ventilation - dual control modes - automatic tube compensation - pressure support - adaptive support ventilation