Zdenek Rusavy1,2, Jaromir Masata3, Kamil Svabik3, Petr Hubka3, Karel Zvara4, Alois Martan3. 1. Department of Obstetrics and Gynecology, Faculty of Medicine in Pilsen and University Hospital in Pilsen, Charles University, Alej Svobody 80, 304 60, Pilsen, Czech Republic. rusavyz@fnplzen.cz. 2. Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic. rusavyz@fnplzen.cz. 3. Department of Obstetrics and Gynecology, 1st Medical Faculty, Charles University, Prague, Czech Republic. 4. Institute of Applied Mathematics and Information Technologies, Faculty of Sciences, Charles University, Prague, Czech Republic.
Abstract
INTRODUCTION AND HYPOTHESIS: TVT-O production has been modified to laser cutting from mechanical cutting. We compared the behavior of laser and mechanically cut tension-free vaginal tape-obturator (TVT-O) using ultrasound at various time points after surgery. METHODS: This is a retrospective analysis of clinical and ultrasound data from two previously reported randomized controlled trials with TVT-O. Behavior of mechanically cut TVT-O implanted in January 2007 to November 2009 and laser-cut TVT-O implanted in May 2010 to May 2012 was assessed by ultrasound at day 1, the 2nd week, the 3rd month, and the 1st and 2nd years post-operatively. Bladder neck and tape margins positions were described by coordinates in the orthogonal system calculated from polar coordinates. Tape mobility was measured as a change in the upper and lower tape margin position from rest to maximal Valsalva. Comparison of 2-year subjective and objective surgery outcomes was also performed. RESULTS: In total, 68 mechanically cut and 50 laser-cut TVT-Os were implanted. Follow-up data were available from 49 and 45 women respectively. No differences in any baseline characteristics or bladder neck mobility were observed. Significantly lower tape mobility was observed on day 1 and week 2 after mechanically cut TVT-O, although subsequent mobility was comparable to laser-cut TVT-O. The subjective and objective surgery outcomes were comparable. CONCLUSIONS: Although without clinical significance, early postoperative behavior of the mechanically cut and laser-cut TVT-O tapes differs. The less stiff, mechanically-cut TVT-O loosens within 2 weeks of implantation, whereas the stiffer, laser-cut TVT-O keeps its tension.
INTRODUCTION AND HYPOTHESIS: TVT-O production has been modified to laser cutting from mechanical cutting. We compared the behavior of laser and mechanically cut tension-free vaginal tape-obturator (TVT-O) using ultrasound at various time points after surgery. METHODS: This is a retrospective analysis of clinical and ultrasound data from two previously reported randomized controlled trials with TVT-O. Behavior of mechanically cut TVT-O implanted in January 2007 to November 2009 and laser-cut TVT-O implanted in May 2010 to May 2012 was assessed by ultrasound at day 1, the 2nd week, the 3rd month, and the 1st and 2nd years post-operatively. Bladder neck and tape margins positions were described by coordinates in the orthogonal system calculated from polar coordinates. Tape mobility was measured as a change in the upper and lower tape margin position from rest to maximal Valsalva. Comparison of 2-year subjective and objective surgery outcomes was also performed. RESULTS: In total, 68 mechanically cut and 50 laser-cut TVT-Os were implanted. Follow-up data were available from 49 and 45 women respectively. No differences in any baseline characteristics or bladder neck mobility were observed. Significantly lower tape mobility was observed on day 1 and week 2 after mechanically cut TVT-O, although subsequent mobility was comparable to laser-cut TVT-O. The subjective and objective surgery outcomes were comparable. CONCLUSIONS: Although without clinical significance, early postoperative behavior of the mechanically cut and laser-cut TVT-O tapes differs. The less stiff, mechanically-cut TVT-O loosens within 2 weeks of implantation, whereas the stiffer, laser-cut TVT-O keeps its tension.
Authors: Jaromir Masata; Kamil Svabik; Karel Zvara; Petra Drahoradova; Rachid El Haddad; Petr Hubka; Alois Martan Journal: Int Urogynecol J Date: 2012-10 Impact factor: 2.894
Authors: Pamela A Moalli; Noah Papas; Shawn Menefee; Mike Albo; Leslie Meyn; Steven D Abramowitch Journal: Int Urogynecol J Pelvic Floor Dysfunct Date: 2008-01-09
Authors: Andrea Braga; Giorgio Caccia; Giovanni Ruggeri; Luca Regusci; Andrea Papadia; Maurizio Serati Journal: Int Urogynecol J Date: 2019-08-28 Impact factor: 2.894