Schroeder Carrie A, Snyder Lindsey B C, Tearney Caitlin C, Baker-Herman Tracy L, Schroeder Kristopher M
Department of Surgical Sciences, University of Wisconsin School of Veterinary Medicine. Madison, WI 53706, USA.
Vet Anaesth Analg. 2011 May;38(3):267-71. doi: 10.1111/j.1467-2995.2011.00612.x.
To describe the ultrasound-guided technique to the transversus abdominis plane (TAP) block in the dog and evaluate the spread of a local anesthetic/methylene blue solution.
Prospective experimental trial.
Ten adult Beagle cadavers weighing 11.1 ± 1.1 kg (mean ± SD).
Transversus abdominis plane (TAP) blocks were performed bilaterally by a single trained individual on unpreserved cadaver dogs using 10 mL of methylene blue/bupivacaine solution per site. Dissection of the abdominal wall was performed within 15-55 minutes of block to determine distribution of injectate and nerve involvement in the transversus abdominis fascial plane.
The transversus abdominis fascial plane was adequately visualized via ultrasound and injected in twenty hemi-abdominal walls. Segmental branches of T11, T12, T13, L1, L2, and L3 were adequately stained in 20%, 60%, 100%, 100%, 90%, and 30% of injections, respectively.
This anatomical study suggests that the transversus abdominis plane (TAP) block would provide adequate regional anesthesia of the abdomen, potentially extending to the cranial and caudal limits of the abdomen. This supports the clinical potential of this block in veterinary medicine.
描述犬腹横肌平面（TAP）阻滞的超声引导技术，并评估局部麻醉药/亚甲蓝溶液的扩散情况。
前瞻性实验性试验。
10只成年比格犬尸体，体重11.1±1.1千克（均值±标准差）。
由一名经过培训的人员对未防腐处理的犬尸体双侧进行腹横肌平面（TAP）阻滞，每个部位使用10毫升亚甲蓝/布比卡因溶液。在阻滞后15至55分钟内对腹壁进行解剖，以确定注射剂的分布以及腹横肌筋膜平面内神经的受累情况。
通过超声可充分显示腹横肌筋膜平面，并在20个半腹壁中进行了注射。T11、T12、T13、L1、L2和L3的节段支分别在20%、60%、100%、100%、90%和30%的注射中被充分染色。
这项解剖学研究表明，腹横肌平面（TAP）阻滞可为腹部提供充分的区域麻醉，可能延伸至腹部的头侧和尾侧界限。这支持了该阻滞在兽医学中的临床应用潜力。
