British Journal of Anaesthesia, Vol 77, Issue 6 735-738, Copyright © 1996 by The Board of Management and Trustees of the British Journal of Anaesthesia
RSC. Wu, K. C. Wu, DCW. Sum and M. J. Bishop
To compare the effects of propofol and thiopentone on tracheal
intubation-induced bronchoconstriction, 37 patients were allocated randomly
to anaesthesia with either thiopentone 4 mg kg-1 followed by a 15-mg kg-1
h-1 continuous infusion or propofol 3 mg kg-1 followed by a 9-mg kg-1 h-1
continuous infusion. Intubation was facilitated by vecuronium 0.1-0.2 mg
kg-1. Respiratory system resistance (Rrs) was measured by a CP-100
pulmonary function monitor, 5 min after intubation. The 5-min
post-intubation Rrs values were significantly lower in the propofol group
(8.5 (SD 1.5) cm H2O litre-1 S-1) than in the thiopentone group (10.9 (3.2)
cm H2O litre-1 S-1). Thirty minutes after commencing isoflurane-nitrous
oxide anaesthesia, Rrs declined by 17.5 (SEM 3.6)% from baseline in the
thiopentone group, but by only 1.6 (2.6)% in the propofol group. We
conclude that the dose of propofol administered provided more protection
against tracheal intubation- induced bronchoconstriction than an induction
dose of thiopentone.
CLINICAL INVESTIGATIONS
Comparative effects of thiopentone and propofol on respiratory resistance after tracheal intubation
Department of Anaesthesiology, Chang Gung Memorial Hospital and Chang Gung College of Medicine and Technology, No. 5 Fushing Street, Kweishan, Taoyuan, 333, Taiwan, Republic of China; Department of Anaesthesia/OR Services, Seattle VAMC 112A, 1660 South Columbian Way, Seattle, WA 98108, USA
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