Plasma Adrenaline Increases in Anesthetized Patients Given Electro-acupuncture Before Surgery

Nina Kvorning, Jonas Åkeson

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Sammanfattning

Purpose. In anesthetized patients, electro-acupuncture (EA) has been found to reduce sevoflurane-induced suppression of cranial and spinal motor responses to surgery without influencing the level of anesthesia. The underlying mechanisms are unclear. In the present study, blood samples were analyzed to evaluate if the increased clinical motor responses to surgery in patients subjected to EA under sevoflurane anesthesia are also reflected in higher plasma levels of catecholamines, adrenocorticotrophic hormone (ACTH), or cortisol. Methods. Blood samples were obtained before anesthetic induction, soon after the study or control procedures had been completed under general anesthesia, and after 30 minutes of surgery under steady-state anesthesia with 1.8% of sevoflurane, in 45 healthy female patients, scheduled for sterilization by laparoscopy, randomized for bilateral 2 Hz-burst EA (study group; n = 22) or control (control group; n = 23) procedures. Result. Plasma levels of adrenaline were found to approach the higher preanesthetic level after 30 minutes of surgery in patients given EA stimulation but to remain low in control patients (P < 0.05)-in agreement with the stronger clinical motor responses to skin incision in the EA group. Plasma levels of noradrenaline, ACTH, and cortisol did not change in or differ between the two groups. Conclusion. The clinical facilitation of both cranial and spinal motor responses to surgery in patients given acupuncture under sevoflurane anesthesia is associated with increased plasma levels of adrenaline, possibly reflecting sympathetic activation.
Originalspråkengelska
Sidor (från-till)1126-1131
TidskriftPain Medicine
Volym11
Utgåva7
DOI
StatusPublished - 2010

Ämnesklassifikation (UKÄ)

  • Anestesi och intensivvård

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