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The Annals of Thoracic Surgery, Vol 43, 428-431, Copyright © 1987 by The Society of Thoracic Surgeons
JB Zwischenberger, MM Kirsh, RE Dechert, DK Arnold and RH Bartlett
Thirty-three patients undergoing elective myocardial revascularization were
prospectively randomized into two study groups (Group S and Group P) to
permit evaluation of the effects of shivering on oxygen consumption per
minute (VO2), carbon dioxide production per minute (VCO2), and hemodynamic
performance. Group S was allowed to shiver during the postoperative
rewarming period, and Group P received hourly injections of pancuronium
bromide and Metubine (metocurine) sulfate with sedation to block the
shivering response. Group S demonstrated significantly higher increases in
VO2 and VCO2, lower systolic blood pressure and mixed venous oxygen
saturation, and a greater use of inotropic support than the patients in
Group P. Suppression of the shivering response minimized increases in VO2
and VCO2, improved hemodynamic stability, and resulted in a decreased need
for inotropic support.
ARTICLES
Suppression of shivering decreases oxygen consumption and improves hemodynamic stability during postoperative rewarming
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