Objective To observe the changes of urination and lower urinary tract symptoms after improved pelvic floor reconstruction (PRS) in patients with pelvic organ prolapse (POP) and lower urinary tract symptoms

and to explore the effect of PRS combined with TVT-O on lower urinary tract symptoms and its clinical value. Methods A retrospective study was performed on 112 patients treated with pelvic organ prolapse surgery from January 2014 to February 2017 in Xiangyang maternal and child health hospital.The patients were divided into three groups according to the patient′s procedure，of whom 36 patients in observation group Ⅰ，38 patients in observation group Ⅱ and 38 patients in the control group. The control group was treated with modified pelvic floor reconstruction

the observation group Ⅰ and the observation group Ⅱwere treated with TVT-O and TVT-O mesh sling placement on the basis of the control group respectively.The general conditions and perioperative indicators of the three groups were compared;the incidence of lower urinary tract symptoms before and after surgery was compared in the three groups;the pelvic organ prolapse quantitative test (POP-Q) was used to evaluate preoperative and postoperative halfyearly degree of prolapse of the base organ.The PFDI20 pelvic floor dysfunction questionnaire was followed up for the patient′s urinary and subjective POP symptoms before and after surgery

and the effects of these three procedures on the lower urinary tract disease were evaluated. Results There was no significant difference in highest body temperature within 24 hours after surgery

anal discharge time

duration of catheterization and length of hospitalization(P>0.05).The incidence of lower urinary tract symptoms of the three groups at 6 months after surgery was significantly lower than that before surgery(P<0.05);the incidence of lower urinary tract symptoms was lower in group Ⅰ and group Ⅱ than in the control group(P<0.05).The operative time

intraoperative blood loss of observation group Ⅰ and observation group Ⅱ were significantly higher than those of the control group

but the postoperative residual urine was less than that of the control group(P<0.05).After 6 months

the distance of point C

point D and length of the vagina of observation group Ⅰ and groupⅡ were significantly longer than those of the control group(P<0.05)

and three cases of lower urinary tract symptoms after pelvic floor reconstruction surgery

TVTO surgery

and TVT mesh surgery were improved after six months.The improvement rates of lower urinary tract symptoms in control group

observation group Ⅰ and observation group Ⅱ were 71.1%

83.3%

and 92.1%

respectively.Observation group Ⅱ was superior to observation group Ⅰ

and the lowest was the control group

the differences were significant(P<0.05). Conclusion Improved pelvic floor reconstruction has good curative effect on patients with pelvic organ prolapse and lower urinary tract symptoms

combined with TVTO technology can effectively improve the patient′s lower urinary tract symptoms.