Nobre Adriana Vasconcelos, Gurgel Heytor Jales, Torres Elaine Cristina Batista, Aleixo Geovana de Lima, Farias Daiara Joana Lima de, Souza Júnior Paulo de, Thiesen Roberto
Institute of Veterinary Medicine, Pará Federal University, Castanhal 68740-970, Brazil.
Uruguaiana Campus, Federal University of Pampa, Uruguaiana 97500-970, Brazil.
Animals (Basel). 2025 Jul 22;15(15):2157. doi: 10.3390/ani15152157.
The erector spinae plane (ESP) block is a widely used technique for perioperative analgesia. It involves the infiltration of anesthetics into the interfacial plane between the erector spinae muscle and the transverse processes of the vertebrae. In veterinary medicine, this technique has been adapted for different species, but there are no cadaveric studies in cats. This study describes the ultrasound-guided lumbar ESP-block technique and evaluates the spread of two volumes of dye in feline cadavers. Injections were performed at the second lumbar vertebra (L2) level using 0.6 mL/kg (high volume [HV]) and 0.4 mL/kg (low volume [LV]) of methylene blue bilaterally. After anatomical dissection, the distribution of the dye, the staining of the spinal nerve branches, and the presence of dye in the epidural space were recorded. The results demonstrated that the HV treatment provided wider longitudinal distribution, staining the dorsal branch of the spinal nerves in an average of five segments per injection, without extravasation into the epidural space. It is concluded that the HV treatment promotes efficient multisegmental spread in feline cadavers.
竖脊肌平面（ESP）阻滞是一种广泛应用于围手术期镇痛的技术。它涉及将麻醉剂注入竖脊肌与椎骨横突之间的界面平面。在兽医学中，该技术已适用于不同物种，但尚无针对猫的尸体研究。本研究描述了超声引导下的腰椎ESP阻滞技术，并评估了两剂量染料在猫尸体中的扩散情况。在第二腰椎（L2）水平双侧注射0.6 mL/kg（高剂量[HV]）和0.4 mL/kg（低剂量[LV]）的亚甲蓝。解剖后，记录染料的分布、脊神经分支的染色情况以及硬膜外间隙中染料的存在情况。结果表明，高剂量治疗提供了更广泛的纵向分布，每次注射平均使五个节段的脊神经背支染色，且无染料渗入硬膜外间隙。结论是，高剂量治疗可促进猫尸体中多节段的有效扩散。
