Sudheer, Potteth, Logan, S. W., Ateleanu, B. and Hall, Judith Elizabeth ![]() |
Abstract
The haemodynamic changes of the prone position were investigated in 40 ASA I-II patients undergoing lumbar spine surgery. Patients were randomly assigned, following propofol intravenous induction, to receive maintenance of anaesthesia using either isoflurane 1-1.2% in air or target controlled propofol 3 microg.ml(-1) infusion. Measurements of non-invasive blood pressure, heart rate and cardiac output were made in the supine position. The patient was then turned prone onto a Montreal pattern mattress and measurements repeated. Cardiac output measurements were made using a non-invasive cardiac output monitor. We found a significant reduction in cardiac index in both groups and a significantly greater change with propofol compared to isoflurane on turning supine to prone (CI change 0.4 vs 0.7 l.min(-1).m(-2) p = 0.001 and SVRI change 89 vs 177 dyne.s(-1).cm(-5), p = 0.041). We conclude that turning healthy patients prone produces a clinically significant reduction in cardiac output, the change being greater during maintenance of anaesthesia using propofol compared to isoflurane.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Schools > Medicine |
Subjects: | R Medicine > R Medicine (General) R Medicine > RZ Other systems of medicine |
Publisher: | Wiley-Blackwell |
ISSN: | 0003-2409 |
Last Modified: | 28 Oct 2022 08:34 |
URI: | https://orca.cardiff.ac.uk/id/eprint/71287 |
Citation Data
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