{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T02:26:56Z","timestamp":1740104816268,"version":"3.37.3"},"reference-count":14,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2017,8,2]],"date-time":"2017-08-02T00:00:00Z","timestamp":1501632000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Neurourology and Urodynamics"],"published-print":{"date-parts":[[2018,3]]},"abstract":"<jats:sec><jats:title>Aims<\/jats:title><jats:p>It was demonstrated earlier that reduced maximum flow\u2010rate (<jats:italic>Q<\/jats:italic><jats:sub>max<\/jats:sub>) during intubated flow (IF) in women may be the consequence of a urethral reflex. Over\u2010estimation of outflow obstruction is the consequence. Our hypothesis, that a similar phenomenon could occur in men, is tested using results of a free uroflow (FF) preceding an IF to eventually correct the Abrams\u2010Griffiths (AG) number.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Retrospectively, analysis of 441 urodynamic studies of men suspected of bladder outflow obstruction (BOO) was performed. The Valentini\u2010Besson\u2010Nelson model links outflow obstruction (parameter pucp) and the detrusor contractility (parameter k) to <jats:italic>Q<\/jats:italic><jats:sub>max<\/jats:sub> and detrusor pressure at <jats:italic>Q<\/jats:italic><jats:sub>max<\/jats:sub> (p<jats:sub>det.Qmax<\/jats:sub>). AG and pucp are strongly correlated. Contractility is described by a graphical representation (a nomogram) which numerical fitting is an algebraic equation f(<jats:italic>Q<\/jats:italic><jats:sub>max<\/jats:sub>,<jats:italic>p<\/jats:italic><jats:sub>det.Qmax<\/jats:sub>). Nomograms based on IF allowed computing a calculated AG (corr\u2010AG) on the basis of free flow.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Included files (<jats:italic>N<\/jats:italic>\u2009=\u2009362) had filling volume during FF\u2009&gt;\u200990\u2009mL; corr\u2010AG was compared to AG. When <jats:italic>Q<\/jats:italic><jats:sub>max.FF<\/jats:sub>\u2009&gt;\u20091.5*<jats:italic>Q<\/jats:italic><jats:sub>max.IF<\/jats:sub> (<jats:italic>N<\/jats:italic>\u2009=\u2009114), 61 patients (53.5%) were found less obstructed with corr\u2010AG, no one more obstructed. Increased BOO could be the result of a urethral reflex during IF and AG gave an overestimation. When <jats:italic>Q<\/jats:italic><jats:sub>max.FF<\/jats:sub>\u2009&lt;\u20091.5*<jats:italic>Q<\/jats:italic><jats:sub>max.IF<\/jats:sub> (<jats:italic>N<\/jats:italic>\u2009=\u2009248), only 39 patients (12.1%) were found less obstructed with corr\u2010AG and 28 (11.3%) more obstructed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>To obtain a reliable evaluation of BOO in men, it is suitable to perform a FF before IF. A corrected AG (corr\u2010AG) obtained from IF analysis and nomograms based on FF may be helpful for evaluation of BOO in men.<\/jats:p><\/jats:sec>","DOI":"10.1002\/nau.23385","type":"journal-article","created":{"date-parts":[[2017,8,2]],"date-time":"2017-08-02T14:06:41Z","timestamp":1501682801000},"page":"1019-1023","source":"Crossref","is-referenced-by-count":2,"title":["Are nomograms based on free uroflows helpful to evaluate urethral obstruction in men?"],"prefix":"10.1002","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8639-4631","authenticated-orcid":false,"given":"Fran\u00e7oise A.","family":"Valentini","sequence":"first","affiliation":[{"name":"Universit\u00e9 Pierre et Marie Curie Paris France"},{"name":"Physical Medicine and Rehabilitation H\u00f4pital Rothschild Paris France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter F. W. M.","family":"Rosier","sequence":"additional","affiliation":[{"name":"Department of Urology Physical University Medical Centre Utrecht Utrecht The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pierre P.","family":"Nelson","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Pierre et Marie Curie Paris France"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2017,8,2]]},"reference":[{"doi-asserted-by":"publisher","key":"e_1_2_7_2_1","DOI":"10.1007\/s00192-012-1856-2"},{"doi-asserted-by":"publisher","key":"e_1_2_7_3_1","DOI":"10.1016\/0090-4295(82)90371-5"},{"key":"e_1_2_7_4_1","first-page":"15","article-title":"Influence of catheter on urinary flow during urodynamic pressure\u2010flow study in men with symptomatic benign prostatic hyperplasia","volume":"42","author":"Trumbeckas D","year":"2006","journal-title":"Medicina (Kaunas)"},{"doi-asserted-by":"publisher","key":"e_1_2_7_5_1","DOI":"10.1111\/j.1745-7262.2006.00208.x"},{"doi-asserted-by":"publisher","key":"e_1_2_7_6_1","DOI":"10.1007\/BF00182664"},{"doi-asserted-by":"publisher","key":"e_1_2_7_7_1","DOI":"10.1002\/(SICI)1520-6777(1997)16:1<1::AID-NAU1>3.0.CO;2-I"},{"doi-asserted-by":"publisher","key":"e_1_2_7_8_1","DOI":"10.1002\/nau.22660"},{"doi-asserted-by":"publisher","key":"e_1_2_7_9_1","DOI":"10.1016\/j.annrmp.2004.06.053"},{"doi-asserted-by":"publisher","key":"e_1_2_7_10_1","DOI":"10.1002\/(SICI)1520-6777(2000)19:2<153::AID-NAU6>3.0.CO;2-K"},{"doi-asserted-by":"publisher","key":"e_1_2_7_11_1","DOI":"10.1007\/BF02474637"},{"doi-asserted-by":"publisher","key":"e_1_2_7_12_1","DOI":"10.1046\/j.1464-410x.1999.00121.x"},{"doi-asserted-by":"publisher","key":"e_1_2_7_13_1","DOI":"10.1111\/j.1464-410X.2008.07460.x"},{"doi-asserted-by":"publisher","key":"e_1_2_7_14_1","DOI":"10.3834\/uij.1944-5784.2013.10.07"},{"doi-asserted-by":"publisher","key":"e_1_2_7_15_1","DOI":"10.1016\/S0090-4295(02)01873-3"}],"container-title":["Neurourology and Urodynamics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fnau.23385","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/nau.23385","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,24]],"date-time":"2023-09-24T16:07:28Z","timestamp":1695571648000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/nau.23385"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,8,2]]},"references-count":14,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2018,3]]}},"alternative-id":["10.1002\/nau.23385"],"URL":"https:\/\/doi.org\/10.1002\/nau.23385","archive":["Portico"],"relation":{},"ISSN":["0733-2467","1520-6777"],"issn-type":[{"type":"print","value":"0733-2467"},{"type":"electronic","value":"1520-6777"}],"subject":[],"published":{"date-parts":[[2017,8,2]]}}}