PMID- 22701539 OWN - NLM STAT- MEDLINE DCOM- 20121018 LR - 20211021 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 7 IP - 5 DP - 2012 TI - External urethral sphincter pressure measurement: an accurate method for the diagnosis of detrusor external sphincter dyssynergia? PG - e37996 LID - 10.1371/journal.pone.0037996 [doi] LID - e37996 AB - BACKGROUND: Combined pelvic floor electromyography (EMG) and videocystourethrography (VCUG) during urodynamic investigation are the most acceptable and widely agreed methods for diagnosing detrusor external sphincter dyssynergia (DESD). Theoretically, external urethral sphincter pressure (EUSP) measurement would provide enough information for the diagnosis of DESD and could simplify the urodynamic investigation replacing combined pelvic floor EMG and VCUG. Thus, we evaluated the diagnostic accuracy of EUSP measurement for DESD. PATIENTS #ENTITYSTARTX00026; METHODS: A consecutive series of 72 patients (36 women, 36 men) with neurogenic lower urinary tract dysfunction able to void spontaneously was prospectively evaluated at a single university spinal cord injury center. Diagnosis of DESD using EUSP measurement (index test) versus combined pelvic floor EMG and VCUG (reference standard) was assessed according to the recommendations of the Standards for Reporting of Diagnostic Accuracy Initiative. RESULTS: Using EUSP measurement (index test) and combined pelvic floor EMG and VCUR (reference standard), DESD was diagnosed in 10 (14%) and in 41 (57%) patients, respectively. More than half of the patients presented discordant diagnosis between the index test and the reference standard. Among 41 patients with DESD diagnosed by combined pelvic floor EMG and VCUR, EUSP measurement identified only 6 patients. EUSP measurement had a sensitivity of 15% (95% CI 5%-25%), specificity of 87% (95% CI 76%-98%), positive predictive value of 60% (95% CI 30%-90%), and negative predictive value of 56% (95% CI 44%-68%) for the diagnosis of DESD. CONCLUSIONS: For diagnosis of DESD, EUSP measurement is inaccurate and cannot replace combined pelvic floor EMG and VCUR. FAU - Suzuki Bellucci, Carlos H AU - Suzuki Bellucci CH AD - Neuro-Urology, Spinal Cord Injury Center & Research, Balgrist University Hospital, University of Zurich, Zurich, Switzerland. FAU - Wollner, Jens AU - Wollner J FAU - Gregorini, Flavia AU - Gregorini F FAU - Birnbock, Dorothee AU - Birnbock D FAU - Kozomara, Marko AU - Kozomara M FAU - Mehnert, Ulrich AU - Mehnert U FAU - Kessler, Thomas M AU - Kessler TM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120531 PL - United States TA - PLoS One JT - PloS one JID - 101285081 SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Electromyography MH - Female MH - Humans MH - Male MH - Middle Aged MH - Urethra/*physiopathology MH - Urinary Bladder Diseases/*physiopathology MH - Urodynamics/physiology MH - Young Adult PMC - PMC3365101 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2012/06/16 06:00 MHDA- 2012/10/19 06:00 PMCR- 2012/05/31 CRDT- 2012/06/16 06:00 PHST- 2012/01/13 00:00 [received] PHST- 2012/05/01 00:00 [accepted] PHST- 2012/06/16 06:00 [entrez] PHST- 2012/06/16 06:00 [pubmed] PHST- 2012/10/19 06:00 [medline] PHST- 2012/05/31 00:00 [pmc-release] AID - PONE-D-12-01644 [pii] AID - 10.1371/journal.pone.0037996 [doi] PST - ppublish SO - PLoS One. 2012;7(5):e37996. doi: 10.1371/journal.pone.0037996. Epub 2012 May 31.