Bloqueio maxilar intraoral em rinoscopia: relato de caso

Abstract

The mandatory supervised internship was carried out at the MedCão Veterinary Clinic between August and November 2025, with a workload of six hours per day. During this period, activities related to hospitalization care, laboratory and imaging exams, clinical consultations, anesthesia, and surgical procedures were monitored. Veterinary anesthesiology was the main area of interest, allowing active participation in anesthetic preparation, drug calculations, anesthetic monitoring, and postoperative recovery. During the internship, 334 surgical procedures were performed, including 220 in dogs and 114 in cats. The most frequent procedures included ovariohysterectomies, orchiectomies, nodulectomies, mastectomies, rhinoscopies, endoscopies, and periodontal treatments. In addition, 1,630 clinical procedures were monitored, including consultations, hospitalizations, anesthesias, vaccinations, and sedations. The case report describes the use of bilateral intraoral maxillary nerve block in an 11-year-old poodle dog submitted to rhinoscopy due to recurrent epistaxis. The regional anesthetic block was performed using lidocaine, providing effective analgesia during the procedure without physiological changes suggestive of pain or discomfort. The technique ensured hemodynamic stability and safe anesthetic recovery. Regional anesthesia proved to be an important anesthetic management strategy for procedures involving the nasal cavity, reducing the need for general anesthetics and opioids while promoting greater cardiovascular safety and patient comfort. The intraoral maxillary block demonstrated to be an efficient, safe, and relevant technique in modern veterinary anesthesiology.