PMID: 8967632May 1, 1996Paper

The content of beta-endorphin, met-enkephalin and ACTH in the blood plasma during electric and drug anesthesia

Anesteziologiia i reanimatologiia
A P AlisovV N Tsibuliak

Abstract

Beta-endorphin, metenkephaline, and ACTH were radioimmunoassayed in the peripheral blood plasma of 4 groups of patients subjected to microsurgery by different techniques. In 3 groups electropulsed exposure of the CNS was a component of general combined ataralgesia. In group 1 (13 patients) two Lenar devices were employed, in group 2 (5 patients) Skat-202 device, in group 3 (7 patients) Elean device. Group 4 (17 patients) were controls administered drugs according to the same protocols as in the rest three groups. Anesthesia was considered adequate in all the groups. The hypoalgesic effect of electroexposure was the most expressed in group 1: fentanyl was not injected in 53% cases, and in 47% its dose, 0.74 microgram/kg/h, was 2.25 times lower than in controls (1.58 micrograms/kg/hm p < 0.05); the drug doses in groups 2 and 3 (0.82 and 0.8 microgram/kg/h) were 1.9 and 2 times lower than in controls, respectively, p < 0.05. The levels of ACTH and opioid peptides were measured at 6 stages: 1) several days before surgery; 2) after premedication, 10-15 min after the patient was brought into the operation room; 3) before discontinuing nitrogen oxide; 4) after discontinuing nitrogen oxide; 5) when the patient regained consciousness af...Continue Reading

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