ABSTRACT

Introduction:

The placement of middle urethral tape is the most common approach for women with I.U.E (stress urinary incontinence). Unfortunately, there is no standardized method to give tension to the tape, which can cause possible obstruction in the bladder outlet.

Objectives:

To evaluate the urinary flow and post voiding residual, comparing two tension methods.

Material and Method:

A case-control study was conducted in 75 women diagnosed with I.U.E, who underwent placement of a T.O.T tape; using two methods for calibration: one with Foley urethral catheter No 16F (5.3mm) with interposition of scissors May (3mm) and another using Hegar dilators 8mm inside the urethra and 4mm between the urethra and the tape. The patients were evaluated in pre- and postoperative (3 months) the: Q (max), and post-void residue.

Results:

36 patients underwent tension of the tape on Foley urethral catheter 16F + scissors (controls) and 39 with dilators Hegar 8 / 4mm (cases). The Q (max) Pre-operative of the control group was 40.2 +/- 2.6 and in the Post-operative 27.6 +/- 4.1 (P: 0.044). In the case group, the preoperative Q (max) was 39.1 +/- 2.1 and the postoperative Q (max) of 31.1 +/- 2 (P: 0.000). The post-micturition residue of the control group was 9.2 +/- 6 ml and in the postoperative period it increased to 19.1 +/- 22 ml, in the case group the preoperative residue was 7.9 +/- 6.5 ml and the postoperative period decreased to 3, 6 +/- 4.7 (p: 0.0000). The variation of the Post Voiding residual in the control group of -4.3 +/- 4.4 and in the case control group of 9.9 +/- 22 (p: 0.0002).

Conclusion:

The case group (method 8/4) showed a statistically significant improvement in Q (max) and postoperative post voiding residual in relation to the control group (catheter + scissors), who presented 11% of overcorrections (p: 0.048).