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Nitroglycerin- and nicardipine-induced hypotension does not affect cerebral oxygen saturation and postoperative cognitive function in patients undergoing orthognathic surgery

Authors
 Seung Ho Choi  ;  Sung Jin Lee  ;  Young-Soo Jung  ;  Yang-Sik Shin  ;  Dong Byeong Jun  ;  Kyung Ho Hwang  ;  Jia Liu  ;  Ki Jun Kim 
Citation
 Journal of Oral and Maxillofacial Surgery, Vol.66(10) : 2104-2109, 2008 
Journal Title
 Journal of Oral and Maxillofacial Surgery 
ISSN
 0278-2391 
Issue Date
2008
Abstract
PURPOSE: The aim of this study was to investigate the influence of nitroglycerin- and nicardipine-induced hypotension on regional cerebral oxygen saturation (rSO(2)) and postoperative cognitive function in patients undergoing orthognathic surgery. PATIENTS AND METHODS: Sixty adult patients scheduled for orthognathic surgery were randomly assigned to either the nitroglycerin group (group 1) or nicardipine group (group 2). After induction of anesthesia, hypotension was induced with continuous infusion of nitroglycerin or nicardipine. Mean arterial pressure (MAP), heart rate (HR), and rSO(2) were measured at the following time points: before induction of anesthesia, immediately before commencing induced hypotension, at 30 and 60 minutes after induced hypotension, and immediately before the end of surgery. Cerebral desaturation was defined as a reduction of rSO(2) less than 75% of baseline for > or = 15 seconds. The Mini Mental State Examination (MMSE) was conducted before surgery and then repeated after 1 week. RESULTS: Baseline rSO(2) values were similar in the 2 groups. There were no significant differences in rSO(2) values between the 2 groups. Cerebral desaturation was not observed in any of the patients. Both nitroglycerin and nicardipine reduced MAP and increased HR during induced hypotension as compared with the baseline values (P < .05). No differences in MAP and HR during baseline and induced hypotension were observed between the 2 groups. Decreased MMSE scores were not observed in any of the patients. CONCLUSION: Cerebral oxygen saturation and postoperative cognitive function were not impaired during nitroglycerin- and nicardipine-induced hypotension in patients undergoing orthognathic surgery.
Full Text
http://www.sciencedirect.com/science/article/pii/S0278239108010379
DOI
10.1016/j.joms.2008.06.041
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Surgery (구강악안면외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Ki Jun(김기준) ORCID logo https://orcid.org/0000-0003-1950-7998
Shin, Yang Sik(신양식)
Lee, Sung Jin(이성진)
Jung, Young Soo(정영수) ORCID logo https://orcid.org/0000-0001-5831-6508
Choi, Seung Ho(최승호) ORCID logo https://orcid.org/0000-0001-8442-4406
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/107367
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