title: Electroanalgesia for the postoperative control pain in dogs.
abstract: OBJECTIVE
  To evaluate the analgesic and neuroendocrine effects of electroanalgesia in dogs undergoing ovariohysterectomy.
  
  
  METHODS
  Eighteen dogs were randomly distributed to three groups of six animals each and received either electrical stimuli at acupuncture points (EA), at peri-incisional dermatomes (DER) and at both acupuncture points and peri-incisional dermatomes (EAD). Pre-anesthetic medication was acepromazine (0.05mg kg-1, IV). Anesthesia was induced with propofol (4 to 5mg kg-1, IV) and maintained with isoflurane. Postoperatively pain degree was measured using a numerical rating scale. Dogs were scored at 1, 3, 6, 12 and 24 hours postoperative. If the pain score was ≥6, supplemental morphine (0.5mg kg-1, IM) was administered. Serum cortisol concentration was measured before pre-anesthetic medication (basal), and at 1, 12 and 24 hours postoperative.
  
  
  RESULTS
  EA and EAD- treated dogs had lower pain scores than DER treated dogs one hour postoperatively. Fewer EA and EAD-treated dogs required rescue analgesia. Serum cortisol did not differ among treatments.
  
  
  CONCLUSIONS
  Preoperative application of electrical stimuli to acupuncture points isolated or in combination with peri-incisional dermatomes provides a reduced postoperative opioid requirement and promotes an effective analgesia in dogs undergoing ovariohysterectomy.
authors.affiliation: Department of Veterinary Surgery and Anestesiology, School of Veterinary Medicine, Unoeste, Presidente Prudente-SP, Brazil. navarro@unoeste.br
authors.forename: Renata Navarro
authors.initials: RN
authors.lastname: Cassu
authors.forename: Daniele Alves da
authors.initials: DA
authors.lastname: Silva
authors.forename: Túlio
authors.initials: T
authors.lastname: Genari Filho
authors.forename: Helaine
authors.initials: H
authors.lastname: Stevanin
mesh_terms: D015667:Acupuncture Analgesia / Q000379:methods*; D015669:Acupuncture Points; D000701:Analgesics, Opioid / Q000008:administration & dosage; D000818:Animals; D004285:Dogs; D015671:Electroacupuncture / Q000379:methods*; D005260:Female; D006854:Hydrocortisone / Q000097:blood; D007044:Hysterectomy; D009020:Morphine / Q000008:administration & dosage; D010052:Ovariectomy; D010149:Postoperative Pain / Q000628:therapy*; D011897:Random Allocation; D058994:Salpingectomy; D013127:Spinal Nerves; D004561:Transcutaneous Electric Nerve Stimulation / Q000379:methods*
chemical_list: D000701:Analgesics, Opioid; D009020:Morphine; D006854:Hydrocortisone