Araújo Victor Matheus Mendonça de, Fernandes Manuela Rodrigues Neiva, Bentes Lívia Guerreiro de Barros, Lemos Rafael Silva, Bacelar Herick Pampolha Huet de, Pinto Luis Otávio Amaral Duarte
Universidade do Estado do Pará - Faculdade de Medicina - Laboratório de Cirurgia Experimental - Belém (PA) - Brasil.
Acta Cir Bras. 2025 Jul 7;40:e405225. doi: 10.1590/acb405225. eCollection 2025.
To describe the varicocelectomy model using bull testicles and to evaluate microsurgical practice using the surgical microscope and video magnification system.
Bovine testicles and spermatic cords were used, with the medial portion of the cord left free for the microsurgical varicocelectomy technique. Twenty 3rd-year medical students were divided into two groups, the video magnification system group (VSMG) and the surgical microscope group (SMG), to simulate varicocelectomy in the proposed model. Five training sessions were carried out for both groups (D1, D7, D14, D21, and D28), as well as a reassessment (D63), with a checklist applied on the first, third, and fifth day of training and on reassessment.
The model provides practical support for training in instrument handling, dissection of structures, anatomical identification, and vessel ligation as an alternative to learning the surgical technique. There was a drop in training time as the weeks went by, with no significant difference between the groups. There was no statistical difference in time (D14, D28, D63) or scores between groups.
Microsurgical varicocelectomy training using testicles and sperm cords of bovine origin in the video magnification system and surgical microscope contributed to the acquisition of skills.
描述使用公牛睾丸的精索静脉曲张切除术模型,并评估使用手术显微镜和视频放大系统的显微外科操作。
使用牛的睾丸和精索,精索内侧部分不做处理以用于显微外科精索静脉曲张切除术技术。20名三年级医学生被分为两组,视频放大系统组(VSMG)和手术显微镜组(SMG),在该模型中模拟精索静脉曲张切除术。两组均进行了五次培训课程(第1天、第7天、第14天、第21天和第28天),以及一次重新评估(第63天),在培训的第一天、第三天和第五天以及重新评估时使用检查表。
该模型为器械操作、结构解剖、解剖识别和血管结扎的培训提供了实际支持,可作为学习手术技术的替代方法。随着时间推移,培训时间有所下降,两组之间无显著差异。两组在时间(第14天、第28天、第63天)或得分方面无统计学差异。
在视频放大系统和手术显微镜下使用牛源睾丸和精索进行显微外科精索静脉曲张切除术培训有助于技能的获得。