To compare the further outcome of both techniques for elective CHE in female patients , we analyzed the secondary end points of a prospective randomized single-center trial ( needlescopic versus transvaginal cholecystectomy ( NATCH ) trial ; ClinicalTrials.gov Identifier : NCT0168577 ) , in particular , satisfaction with aesthetics , overall satisfaction , abdominal pain , and incidence of trocar hernias postoperatively at both 3 and 6 months .