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- Title
A novel extraoral ultrasound-guided approach for mandibular nerve block in Rahmani sheep.
- Authors
El-Sherif, Mohamed Wefky; Nazih, Mohamed Ahmed
- Abstract
Background: Regional anesthesia is the favored choice in ruminant animals compared to general anesthesia, primarily due to its high safety margin and reduced demand for cost-intensive equipment in addition to its field applicability. Ultrasound-guided nerve block has gained significant attention in the field of veterinary medicine. This study utilized twenty-seven sheep of the native Rahmani breed to both demonstrate and evaluate the effectiveness of the ultrasound guided inferior alveolar nerve block technique. Methods: The research comprised three phases: Phase 1 involved an anatomical examination of mandibles and sheep heads to locate the mandibular foramen and delineate the mandibular nerve course. Phase 2 included ultrasound-guided injection of methylene blue dye at specific sites along the mandibular nerve in cadaveric sheep heads. In Phase 3, clinical implementation of ultrasound-guided inferior alveolar nerve blocks was conducted in 27 live sheep, assessing efficacy, onset, and duration. Results: Vertical extraoral ultrasound-guided nerve block was achieved successfully in 25 sheep (98%). A preliminary cadaveric study showed good distribution of the injectate at the mandibular nerve site. The mean onset time was 138 ± 18 s, and the mean duration time was 54 ± 4.1 min. Prominent analgesia of the ipsilateral mandible, medial surface of the cheek, and lateral border of the tongue was observed. Conclusions: Ultrasound-guided mandibular nerve block holds promise as a technique for providing effective and safe anesthesia in sheep undergoing mandibular procedures.
- Subjects
MANDIBULAR nerve; NERVE block; SHEEP; CONDUCTION anesthesia; METHYLENE blue; MENTAL foramen; FLUOROSCOPY; TOOTH socket
- Publication
BMC Veterinary Research, 2024, Vol 20, Issue 1, p1
- ISSN
1746-6148
- Publication type
Article
- DOI
10.1186/s12917-024-03924-0