Contribution of amniotic membrane to the healing of iatrogenic vas deferens injury

Abstract

Background/aim: Iatrogenic vas deferens injury is one of the most serious complications of operations in the inguinal region. Vasovasostomy is performed as treatment. However, stenosis is common after vasovasostomy. Oligospermia or azoospermia may develop and result in infertility. This study aimed to investigate the effect of amniotic membrane on healing in vas deferens injuries.Materials and methods: Four groups consisting of 10 rats each were formed. No procedure was performed in Group-I. In Group-II, the left vas deferens was transected and left to spontaneous healing. In Group-III, the left vas deferens was transected, and endto-end anastomosis was performed. In Group-IV, the left vas deferens was transected, end-to-end anastomosis was performed, and it was closed with a wrapping of amniotic membrane on the anastomosis line. Rats were sacrificed after 60 days, and each left vas deferens was evaluated. Lumen patency was checked by passing methylene blue through the vas deferens. Subsequently, the vas deferens was evaluated both macroscopically and histopathologically. Data were evaluated using SPSS version 21.0. p < 0.05 was considered statistically significant for all variables. Results:The anastomosis lines in Group-IV healed better than those in Group-III, and less stenosis was observed. There were differences between the groups in terms of luminal patency (p = 0.009), adhesions to surrounding tissues (p = 0.02) and separation of the ends of the vas deferens (p = 0.03). Conclusion:We observed improvement on luminal patency and histology of rat vas deferens injury after surrounding human amniotic membrane on the transected and repaired surface. Further studies are needed to apply this promising result on human beings.

Application of amniotic membranes in reconstructive surgery of internal organs—A systematic review and meta‐analysis

“…The PRISMA flowchart is shown in Figure 2. Sixty references containing 26 human studies (Ambrus, 1967; Barski et al., 2015; Catalano & Conticello, 1968; De Weerd et al., 2013, 2020; Eichberg et al., 2018, 2019; Frigerio et al., 2019; Ghahramani et al., 2017; Kakabadze et al., 2016; Kumar et al., 2015; Marton et al., 2021; Pignatti et al., 2020; Price & Price, 2016; Razzaghi et al., 2020; Rohleder et al., 2013; Schoellhammer et al., 2018; Schrimpf, 1954; Singh et al., 2011; Tahami et al., 2020; Tomita et al., 2012; Ts'ao, 1960; Tumanov et al., 2006; Turchan et al., 2018; Walker et al., 2018; Zmijewski & Pietraszek, 2005) and 36 animal studies (Barski et al., 2017; Brown et al., 2014; Demir et al., 2021; Ercin et al., 2019; Erdener et al., 1992; Ferhatoglu et al., 2019; Fishman et al., 1987; Francisco et al., 2016; Ghahramani et al., 2014; Güneş et al., 2016, 2017; Hariastawa et al., 2020; Iijima et al., 2007; Ismail, Marcos, et al., 2009; Ismail, Ramsis, et al., 2009; Kesting et al., 2008, 2010; Li et al., 2019; Liu et al., 2021; Mohajeri et al., 2014; Moslemi et al., 2016; Orman et al., 2020; Rohleder et al., 2013; Roshanravan et al., 2014; Schimidt et al., 2010; Scott et al., 2021; Scudamore et al., 1988; Senthil‐Kumar et al., 2016; Tomita et al.,…”

“…Price, 2016;Razzaghi et al, 2020;Rohleder et al, 2013;Schoellhammer et al, 2018;Schrimpf, 1954;Singh et al, 2011;Tahami et al, 2020;Tomita et al, 2012;Ts'ao, 1960;Tumanov et al, 2006;Turchan et al, 2018;Walker et al, 2018;Zmijewski & Pietraszek, 2005) and 36 animal studies(Barski et al, 2017;Brown et al, 2014;Demir et al, 2021;Ercin et al, 2019;Erdener et al, 1992;Ferhatoglu et al, 2019;Fishman et al, 1987; Francisco et al, 2016;Ghahramani et al, 2014;Güneş et al, 2016Güneş et al, , 2017Hariastawa et al, 2020;Iijima et al, 2007;Ismail, Marcos, et al, 2009;Ismail, Ramsis, et al, 2009;Kesting et al, 2008Kesting et al, , 2010Li et al, 2019;Liu et al, 2021;Mohajeri et al, 2014;Moslemi et al, 2016;Orman et al, 2020;Rohleder et al, 2013;Roshanravan et al, 2014;Schimidt et al, 2010;Scott et al, 2021;Scudamore et al, 1988;Senthil-Kumar et al, 2016;…”