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  • Title: Different modulation of the perioperative stress hormone response under neurolept-anaesthesia or enflurane for cholecystectomy.
    Author: Bickel U, Wiegand-Löhnert C, Fleischmann JW, Heinemeyer G, Kewitz H, Dennhardt R, Voigt K.
    Journal: Horm Metab Res; 1991 Apr; 23(4):178-84. PubMed ID: 1651894.
    Abstract:
    Two groups of 13 patients, randomly allocated to receive either enflurane or neurolept anaesthesia for cholecystectomy, were compared in their cardiovascular and neuroendocrine response to surgery and in the postoperative period. There were no significant differences in blood pressure or heart rate. Catecholamine values were higher under neurolept anaesthesia towards the end of surgery and postoperatively. Median values for adrenaline during suture of peritoneum were 342 pg/ml and 88 pg/ml, respectively, P less than 0.05. In contrast, ACTH and cortisol rose to higher levels in enflurane treated patients. At the end of surgery median ACTH values were 75 pg/ml in NLA patients and 322 pg/ml in enflurane patients (P less than 0.01). Vasopressin increments during surgery were similar under both regimens, while prolactin was higher following induction of neurolept anaesthesia. It is discussed whether the differences in stress hormone secretion patterns under either form of anaesthesia reflect different stress protective properties or direct pharmacological effects of certain anaesthetics. We conclude that the hormonal stress response to surgery is critically dependent on the type of anaesthesia and may be discordant in different hormonal systems.
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