Efficacy of urea solution reperfusion to a formalin-embalmed cadaver for surgical skills training
Efficacy of urea solution reperfusion to a formalin-embalmed cadaver for surgical skills training
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福尔马林防腐尸体尿素溶液再灌注用于手术技能训练的效果
DOI：
10.1007/s12565-022-00653-y
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发表时间：
2022
影响因子：
1.2
通讯作者：
Naito Munekazu
中科院分区：
文献类型：
--
作者：
Otsuka Shun;Kawata Shinichi;Nanizawa Eri;Hatayama Naoyuki;Hayashi Shogo;Itoh Masahiro;Hirai Shuichi;Naito Munekazu
传统上，甲醛用于人体尸体防腐，用于大体解剖学教育和外科技能培训。然而，暴露于甲醛会对人体健康产生负面影响。本研究旨在评估尿素溶液对福尔马林防腐尸体进行手术技能训练的效果，然后研究尸体浸泡在尿素溶液中后组织弹性的变化。12名外科医生评估了尸体（福尔马林溶液防腐和尿素溶液再灌注）和活体之间组织特征的相似性。此外，组织甲醛含量和力学性能的福尔马林固定的股骨皮肤和动脉标本浸泡或没有尿素溶液进行了测量。结果表明，尿素溶液再灌注尸体的触觉评估、皮肤切开、血管结扎缝合和剥离等功能均优于单纯福尔马林溶液固定尸体。在尿素再灌注的尸体中，挥发或组织甲醛水平下降。股骨皮肤和动脉的刚度和杨氏模量也低于单纯福尔马林固定的标本。总之，对福尔马林固定的尸体进行尿素溶液再灌注使得解剖学教育和手术技能培训更有效，对尸体管理的要求更低。
Formaldehyde has been traditionally used for embalming human cadavers for gross anatomy education and surgical skills training. However, exposure to formaldehyde negatively affects human health. This study aimed to assess the efficacy of reperfusing urea solution to a formalin-embalmed cadaver for surgical skills training and then investigate the cadaver’s tissue elasticity alteration after being soaked into the urea solution. Twelve surgeons evaluated the similarity of tissue characteristics between the cadaver (embalmed by formalin solution and reperfused by urea solution) and a living human body. Furthermore, the tissue formaldehyde content and mechanical properties of the formalin-fixated femoral skin and artery specimens with or without soaking into urea solution were measured. Results showed that the tactile assessment, skin incision, vessel ligation and suture, and decollement were better and more useful in the cadaver reperfused by urea solution than in the cadaver merely fixated by formalin solution. In the urea-reperfused cadaver, the volatilized, or tissue formaldehyde levels declined. The stiffness and Young’s modulus of the femoral skin and artery were also lower in the specimen than in the mere formalin-fixated specimen. In conclusion, reperfusion of urea solution to the formalin-fixated cadaver makes anatomical education and surgical skills training more efficient with fewer requirements for cadaver management.
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