Davis Lily V, Hoyer Naomi K, Boscan Pedro, Rao Sangeeta, Rawlinson Jennifer E
Colorado State University, Fort Collins, CO, United States.
College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, United States.
Front Vet Sci. 2021 Feb 22;8:619244. doi: 10.3389/fvets.2021.619244. eCollection 2021.
Regional nerve blocks have been shown to decrease general anesthetic drug requirements and improve pain management in patients undergoing surgery. Regional nerve blocks are used routinely in patients undergoing oral surgery, such as dental extractions. There is little published information regarding the efficacy of feline maxillary and infraorbital nerve blocks. The goal of the study was to compare injectate distributions of the infraorbital foramen and percutaneous maxillary nerve block techniques in feline cadavers using a combined dye and radiopaque contrast media solution to simulate an injection. There was no significant difference in length of stained nerve between the two different techniques. It was not necessary to advance the needle into the infraorbital canal to achieve effective staining of the maxillary nerve. There was no significant difference in injectate distribution between two different injectate volumes, 0.2 and 0.4 ml, indicating that the smaller volume injected at the infraorbital foramen resulted in adequate nerve staining.
区域神经阻滞已被证明可减少接受手术患者的全身麻醉药物需求，并改善疼痛管理。区域神经阻滞常用于接受口腔手术（如拔牙）的患者。关于猫上颌神经和眶下神经阻滞疗效的已发表信息很少。本研究的目的是在猫尸体中，使用染料和不透射线造影剂的混合溶液模拟注射，比较眶下孔阻滞技术和经皮上颌神经阻滞技术的注射剂分布情况。两种不同技术之间染色神经的长度没有显著差异。无需将针头推进到眶下管内即可实现上颌神经的有效染色。0.2毫升和0.4毫升两种不同注射剂体积之间的注射剂分布没有显著差异，这表明在眶下孔注射较小体积的溶液即可实现足够的神经染色。
