Abstract: Objective To investigate the application of liquid-injection combined with gauze stripping in laparoscopic transperitoneal anterior inguinal hernia repair (TAPP). Methods A total of 164 consecutive patients with unilateral inguinal hernia from January 2019 to June 2020 were randomly grouped by the numerical table method and divided into a combined group of 81 patients who underwent laparoscopic liquid-injection combined with gauze stripping for preperitoneal repair and a simple group of 83 patients who underwent conventional TAPP.The operative time,patch size,postoperative complications and recurrence rate were compared between the two groups.Results Compared with the conventional procedure,patients in the fluid-injection combined with gauze stripping group had shorter operative time [(57.25±4.95)min vs.(66.69±8.69)min,P<0.001],larger patch size placement [(10.65±1.06)cm vs.(9.93±1.45)cm,P<0.001],and lower incidence of chronic postoperative pain in the inguinal region (1.2% vs.8.4%,P<0.05),and there were no infections or recurrences in either group at 12 to 24 months postoperative follow-up.Two patients in the simple group relapsed. Conclusion The use of fluid separation and gauze stripping in laparoscopic transepithelial anterior hernia repair is safe and feasible.

Key words: laparoscopy, inguinal hernia, fluid-injection, gauze