RESUMO
Objective To evaluate the changes in anterior chamber structure of pelvic floor before and after total hysterectomy with transperineal ultrasonography.Methods Forty-five patients who would receive total hysterectomy were enrolled.The structures of the anterior pelvic floor were observed with transperineal ultrasonography 1 day pre-operation and 1,3 and 6 months after operation.The parameters at rest and max Valsalva were recorded and calculated,including the bladder neck-symphyseal distance (BSD),bladder neck descent (BND),urethral rotation angle (UR) and posterior urethrovesical angle (PUA).The changes of the parameters at different time were analyzed statistically.Results BSD at max Valsalva,BND,UR and PUA at max Valsalva at different time were significantly different (all P＜0.05).Compared with those preoperative,BSD at max Valsalva decreased (H=2.627,P=0.009) and BND increased (q=-3.095,P=0.002) 3 months after operation,BSD at max Valsalva decreased (H=4.379,P＜0.001),BND (q=-4.379,P＜ 0.001),UR (H=-2.861,P=0.004) and PUA at max Valsalva (q=-2.686,P=0.007) increased 6 months after operation.The remaining parameters were not significantly different between every two time points (all P ＞ 0.05).Conclusion The changes of BSD,BND at max Valsalva,UR and PUA at max Valsalva occur at the initial period after the total hysterectomy.The total hysterectomy can damage the pelvic floor and early pelvic floor rehabilitation need to he provided.