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Anaesthesia


Title:The effects of beta2 adrenoceptor gene polymorphisms on pressor response during laryngoscopy and tracheal intubation
Author(s):Kim, N. S. Lee, I. O. Lee, M. K. Lim, S. H. Choi, Y. S. Kong, M. H.
Address:Department of Anaesthesiology, Guro Hospital, University of Korea, College of Medicine, 80 Guro-dong, Guro-ku, Seoul, Korea 152-050.
Year:2002 Mar
Journal Title:Anaesthesia
Page Number:227-32
Language:eng
Volume:57
Issue:3
ISSN/ISBN:0003-2409 (Print). 0003-2409 (Linking)
Abstract:We investigated whether human beta2 adrenoceptor (beta2AR) gene polymorphisms are associated with the pressor response to laryngoscopy and tracheal intubation. Ninety-two patients undergoing elective surgery under general anaesthesia were enrolled into this study. Arterial systolic pressure, heart rate and rate pressure product were measured before induction of anaesthesia and 1 min following laryngoscopy and tracheal intubation. Genomic DNA was then used to identify the beta2AR-16 and beta2AR-27 genes using an allele-specific polymerase chain reaction method. Using multiple linear regression models, controlling for age, sex, weight, baseline blood pressure, heart rate and rate pressure product, we found that patients who possessed the glutamic acid homozygote of beta2AR-27 produced significantly greater changes in mean arterial pressure and rate pressure products than patients with the glutamine homozygote of beta2AR-27 (beta coefficient for mean blood pressure = 11.81, beta coefficient for pulse-pressure product = 8.76, both p-values = 0.023). These findings suggest that genetic variability in the human beta2AR gene polymorphisms may be associated with the pressor response to laryngoscopy and tracheal intubation.

 
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