Maestría en Medicina Veterinaria, mención en Clínica y Cirugía de Pequeñas Especies

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Author: search.filters.author.Guerrero Apo, Walter RolandoSubject: search.filters.subject.BIENESTAR ANIMAL

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    Comparación de tres protocolos anestésicos para orquiectomía y ovariohisterectomía en gatos con temperamento agresivo
    (Universidad Técnica de Ambato Maestría En Medicina Veterinaria, 2026-07) Guerrero Apo, Walter Rolando; Almeida Secaira, Roberto Ismael
    Surgical sterilization through orchiectomy and ovariohysterectomy is one of the most commonly performed procedures in feline medicine. However, anesthetic management in aggressive cats remains challenging due to stress, difficulties associated with handling, and the risk of perioperative physiological disturbances. The present study was conducted to compare the efficacy of three anesthetic protocols in aggressive cats undergoing surgical sterilization. A total of 48 cats treated in the mobile urban animal control units of the Municipal Government of Ambato were included and assigned to three treatment groups: dexmedetomidine 5 µg/kg + ketamine 2 mg/kg + diazepam 0.4 mg/kg (T1); dexmedetomidine 5 µg/kg + tiletamine-zolazepam 4 mg/kg (T2); and xylazine 2 mg/kg + ketamine 2 mg/kg + midazolam 0.2 mg/kg (T3). Physiological parameters, anesthetic quality, and postoperative analgesic effects were assessed using the Feline Grimace Scale. The results emonstrated that all three protocols allowed the surgical procedures to be performed safely while maintaining acceptable physiological stability. Nevertheless, the protocols containing dexmedetomidine exhibited superior anesthetic induction and recovery characteristics, as well as lower facial expressions associated with postoperative pain. In contrast, the xylazine-based protocol showed greater variability during recovery and lower analgesic efficacy during the late postoperative period. It is concluded that dexmedetomidine-based protocols constitute effective and safe alternatives for the anesthetic management of aggressive cats, promoting smoother recovery and improved animal welfare.