BACKGROUND: Urinary retention is a common postpartum condition which may lead to short- and long-term complications.Objective. To assess the reliability of a commercially available automatic bladder volume scanner in the puerperium, and to specifically identify women with a post-void residual volume of 400 ml or more. METHODS: A prospective comparison of ultrasound estimated bladder volume and urine volume measurement after catheterisation in 100 women at risk for postpartum urinary retention (PUR) after vaginal delivery. RESULTS: The mean difference between the ultrasound estimates and the catheter volume measurements was 26 ml, with the corresponding 95% confidence interval (2.6, 49.4 ml). The sensitivity and specificity for the scanner, using the clinically desired value of a 400-ml threshold, are 0.76 and 0.96,respectively. With a perfect classification for sensitivity at a 300-ml threshold, specificity may drop to about 50%. Even using this cut-off point, the number of women catheterised would be reduced by half compared to a procedure of catheterising all women at risk for postpartum urine retention diagnosed by clinical judgment alone. CONCLUSION: The ultrasound scanner is a reliable screening instrument for detecting PUR after vaginal birth.
BACKGROUND: Urinary retention is a common postpartum condition which may lead to short- and long-term complications.Objective. To assess the reliability of a commercially available automatic bladder volume scanner in the puerperium, and to specifically identify women with a post-void residual volume of 400 ml or more. METHODS: A prospective comparison of ultrasound estimated bladder volume and urine volume measurement after catheterisation in 100 women at risk for postpartum urinary retention (PUR) after vaginal delivery. RESULTS: The mean difference between the ultrasound estimates and the catheter volume measurements was 26 ml, with the corresponding 95% confidence interval (2.6, 49.4 ml). The sensitivity and specificity for the scanner, using the clinically desired value of a 400-ml threshold, are 0.76 and 0.96,respectively. With a perfect classification for sensitivity at a 300-ml threshold, specificity may drop to about 50%. Even using this cut-off point, the number of women catheterised would be reduced by half compared to a procedure of catheterising all women at risk for postpartum urine retention diagnosed by clinical judgment alone. CONCLUSION: The ultrasound scanner is a reliable screening instrument for detecting PUR after vaginal birth.
Authors: Stefan Mohr; Luigi Raio; Ursula Gobrecht-Keller; Sara Imboden; Michael D Mueller; Annette Kuhn Journal: Int Urogynecol J Date: 2022-02-07 Impact factor: 1.932
Authors: Femke E M Mulder; Sytske van der Velde; Fraukje Pol; Marjolein Bos; Jules Schagen van Leeuwen; Viviane Dietz; Robert A Hakvoort; Jan-Paul W R Roovers Journal: Int Urogynecol J Date: 2018-06-27 Impact factor: 2.894
Authors: Femke E M Mulder; Katrien Oude Rengerink; Joris A M van der Post; Robert A Hakvoort; Jan-Paul W R Roovers Journal: Int Urogynecol J Date: 2015-07-30 Impact factor: 2.894