title: [General anesthesia and preoperative changes in plasma beta-endorphin].
abstract: The variations of plasmatic beta-endorphin and cortisol levels are studied in 3 groups of patients. These subjects are submitted to abdominal surgery following 3 different anaesthetic schemes: neuroleptanalgesia (droperidol and fentanyl), pure analgesia (fentanyl), association halothane - small dose of fentanyl. The study covers the period from premedication through recovery. The results of this work demonstrates that the average level of beta-endorphin in neuroleptanalgesia and pure analgesia series is stable; there is an increase in the halothane series just after the incision until waking up. The average level of cortisol is stable for the 3 series until incision. It is strongly increased in the neuroleptanalgesia series and in the halothane series. This increase is delayed and reduced in the fentanyl series.
mesh_terms: D000328:Adult; D000368:Aged; D000768:Anesthesia, General; D004723:Endorphins / Q000097:blood*; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000097:blood; D008297:Male; D008875:Middle Aged; D011229:Preanesthetic Medication; D013997:Time Factors; D001615:beta-Endorphin
chemical_list: D004723:Endorphins; D001615:beta-Endorphin; D006854:Hydrocortisone
vernacular_title: Anesthésie générale et variations peropératoires de la bêta endorphine plasmatique.