作者
S Gursoy, I Bagcivan, MK Yildirim, O Berkan, T Kaya
发表日期
2006/6/1
期刊
European Journal of Anaesthesiology| EJA
卷号
23
期号
6
页码范围
496-500
出版商
LWW
简介
Methods:
Radial artery segments, obtained from 20 patients, were precontracted with phenylephrine. Using the organ bath technique, the endothelium-independent vasodilatation was tested in vitro by addition of cumulative concentrations of morphine, meperidine, fentanyl and remifentanil in separate organ baths, in the presence or absence of naloxone. Indomethacin and N G-nitro-l-arginine methyl ester was added to all organ bath in order to determine the effects of prostaglandins and nitric oxide, respectively.
Results:
Morphine (10− 8–10− 4 mol L− 1), meperidine (10− 10–10− 6 mol L− 1), fentanyl (10− 10–10− 6 mol L− 1) and remifentanil (10− 8–10− 4 mol L− 1) caused a concentration-dependent vasorelaxation in the human being artery rings. The relaxations in the presence of naloxane did not change. The maximal relaxant effects of meperidine and fentanyl were significantly greater than those of morphine …
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S Gursoy, I Bagcivan, MK Yildirim, O Berkan, T Kaya - European Journal of Anaesthesiology| EJA, 2006