An alternative experimental model for training in microsurgery

OBJECTIVE: to describe a new model of training in microsurgery with pig spleen after splenectomy performed by undergraduate students of the Discipline of Operative Technique of the UFPR Medical School. METHODS: after the completion of splenectomy we performed dissection of the vascular pedicle, distal and proximal to the ligation performed for removal of the spleen. After complete dissection of the splenic artery and vein with microscope, clamps were placed and the vessels were cut. We then made the anastomosis of the vessels with 9.0 nylon. RESULT: the microsurgical training with a well-defined routine, qualified supervision and using low cost experimental materials proved to be effective in the practice of initial microvascular surgery. CONCLUSION: the use of pig spleen, which would be discarded after splenectomy, is an excellent model for microsurgical training, since besides having the consistency and sensitivity of a real model, it saves the sacrifice of a new animal model in the initial learning phase of this technique.

研究目的：描述巴西巴拉那联邦大学（UFPR）医学院手术技术学科的本科生完成脾切除术后，使用猪脾脏开展显微外科训练的新型实训模型。
研究方法：在由该课程本科生完成脾切除术后，我们对用于摘除脾脏的结扎线远近端的血管蒂进行解剖。借助显微镜完全分离脾动、静脉后，放置血管夹并离断血管，随后使用9-0尼龙线完成血管吻合术。
研究结果：采用流程规范明确、资质完备的监督指导且实验耗材成本低廉的显微外科训练方案，在初始显微血管外科操作实践中被证实具备良好效果。
研究结论：脾切除术后本应废弃的猪脾脏，是极为优质的显微外科训练模型——其不仅具备真实人体组织的一致性与触感敏感性，还无需在该技术的初始学习阶段额外牺牲实验动物。