Portable model for vasectomy reversal training

Vol. 45 (x): 2019 May 5.[Ahead of print]

doi: 10.1590/S1677-5538.IBJU.2019.0092


ORIGINAL ARTICLE

Luis Otávio Amaral Duarte Pinto 1, Charles Alberto Villacorta de Barros 1, Anderson Bentes de Lima 1, Deivid Ramos dos Santos 1, Herick Pampolha Huet de Bacelar 1
1 Programa de Mestrado Profissional em Cirurgia e Pesquisa Experimental, Universidade do Estado do Pará – Uepa, Belém, PA, Brasil

ABSTRACT

Objectives: to validate an experimental non-animal model for training of vasectomy reversal.

Materials and Methods: The model consisted of two artificial vas deferens, made with silicon tubes, covered by a white resin, measuring 10 cm (length) and internal and external diameters of 0.5 and 1.5 mm, respectively. The holder of the ducts is made by a small box developed with polylactic acid, using a 3D print. The objective of the invention is to simulate the surgical fi eld of vasovasostomy, when the vas deferens are isolated from other cord structures. For validation, it was verifi ed the acquisition of microsurgical skills during its use, in a capacitation course with 5 urology residents from a Hospital of the region. Along the training sessions, it was analyzed the time (speed) of microsurgical sutures, and quantifi cation of the performance using a checklist. Collected data were analyzed using de BioEstat®5.4 software.

Results: Medium time for the completion of microsurgical sutures improved considerably during the course, and reached a plateau after the third day of training (p=0.0365). In relation to the checklist, it was verified that during capacitation, there was significant improvement of the scores of each participant, that reached a plateau after the fourth day of training with the model (p=0.0035).

Conclusion: The developed model was able to allow the students that attended the course to gain skills in microsurgery, being considered appropriate for training vasectomy reversal.

Keywords: Vasovasostomy; Vas Deferens; Fertility

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