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- W2003272012 abstract "No AccessJournal of UrologyPediatric Urology1 Nov 2004FETAL BLADDER SAGITTAL LENGTH: A SIMPLE MONITOR TO ASSESS NORMAL AND ENLARGED FETAL BLADDER SIZE, AND FORECAST CLINICAL OUTCOME MAX MAIZELS, SETH A. ALPERT, JOHN T.B. HOUSTON, RUDY E. SABBAGHA, BARBARA V. PARILLA, and SCOTT N. MacGREGOR MAX MAIZELSMAX MAIZELS More articles by this author , SETH A. ALPERTSETH A. ALPERT More articles by this author , JOHN T.B. HOUSTONJOHN T.B. HOUSTON More articles by this author , RUDY E. SABBAGHARUDY E. SABBAGHA More articles by this author , BARBARA V. PARILLABARBARA V. PARILLA More articles by this author , and SCOTT N. MacGREGORSCOTT N. MacGREGOR More articles by this author View All Author Informationhttps://doi.org/10.1097/01.ju.0000142136.17222.07AboutFull TextPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract Purpose: We examined if the parameter of fetal bladder sagittal length (FBSL) could serve as a monitor of normative and enlarged fetal bladder size. Materials and Methods: There were 76 consecutive cases examined between 1984 and 2000 that included measurement of fetal bladder size as FBSL and postnatal urological followup. Fetal images used to assess normal bladder size were derived from cases in which the bladder was normal on prenatal imaging and postnatal testing. An enlarged bladder was categorized as being greater than the 95% CI for a given gestational age (GA). The presence and extent of renal pelvic dilatation were also noted and correlated with FBSL. Results: Measuring normal FBSL in 39 fetuses showed an exponential growth pattern (r = 0.76), which could be represented by the approximate linear formula FBSL = GA in weeks −5 (±95% upper/lower CI = 7). An enlarged bladder was diagnosed in 37 fetuses. A dilated bladder in 9 fetuses, defined as FBSL greater than the 95% upper CI of normal (ie between GA + 2 and GA + 12), showed outcomes of posterior urethral valves, vesicoureteral reflux or a normal outcome. Megacystis in 28 fetuses, defined as FBSL greater than 10 mm larger than that of a dilated bladder (ie greater than GA + 12), showed additional outcomes of megacystis megaureter/vesicoureteral reflux or prune-belly syndrome. A normal outcome was significantly more likely in fetuses with a dilated bladder than in those with megacystis (p ≤0.05). The incidence of azotemia in those with a dilated bladder or megacystis and pyelectasis was significantly lower than that in those with megacystis with hydronephrosis (p ≤0.03). Conclusions: Postnatal diagnosis of fetuses that show an enlarged bladder is predicted based on whether the bladder is enlarged as a dilated bladder or megacystis and if the renal pelvis is enlarged as pyelectasis or hydronephrosis. References 1 : Early fetal megacystis between 11 and 15 weeks of gestation. Ultrasound Obstet Gynecol1999; 14: 402. Google Scholar 2 : Prenatal diagnosis of cystic bladder distension secondary to obstructive uropathy. Prenat Diagn2000; 20: 260. Google Scholar 3 : Measurement of fetal urine production in normal pregnancy by real-time ultrasonography. Am J Obstet Gynecol1989; 161: 1264. Google Scholar 4 : Significance of nonvisualization of the fetal urinary bladder. J Ultrasound Med1991; 10: 615. Google Scholar 5 : Development of urine production and urination in the human fetus assessed by real-time ultrasound. Asia Oceania J Obstet Gynaecol1987; 13: 473. 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Google Scholar 13 : The significance of non-visualization of the fetal bladder during an ultrasound examination to evaluate second-trimester oligohydramnios. Ultrasound Obstet Gynecol1996; 8: 186. Google Scholar 14 : Fetal megacystis at 10–14 weeks of gestation. Ultrasound Obstet Gynecol1996; 8: 387. Google Scholar 15 : Early diagnosis of fetal bladder outlet obstruction. J Pediatr Surg2000; 35: 513. Google Scholar 16 : Megacystis-microcolon-intestinal hypoperistalsis syndrome: a new cause of intestinal obstruction in the newborn. Report of radiologic findings in five newborn girls. AJR Am J Roentgenol1976; 126: 957. Google Scholar 17 : Bladder distention and pyelectasis in the male fetus: causes, comparisons, and contrasts. J Ultrasound Med1998; 17: 743. Google Scholar 18 : Posterior urethral valves: inaccuracy of prenatal diagnosis. Fetal Diagn Ther1998; 13: 179. Google Scholar 19 : Antenatal renal pelvic measurements: what do they mean?. BJU Int2001; 87: 376. Google Scholar 20 : Megacystis-microcolon-intestinal hypoperistalsis syndrome: the difficulties with antenatal diagnosis. Case report and review of the literature. Prenat Diagn2000; 20: 697. Google Scholar From the Division of Urology, Children's Memorial Hospital, Obstetrics and Gynecology, Prentice Women's Hospital and Department of Urology, Northwestern University Medical School, Chicago and Obstetrics and Gynecology, Evanston Hospital, Evanston, Illinois© 2004 by American Urological Association, Inc.FiguresReferencesRelatedDetailsCited byKoerner I, Deibl M, Oswald J, Schwentner C, Lunacek A, Fritsch H, Bartsch G and Radmayr C (2018) Gender Specific Chronological and Morphometric Assessment of Fetal Bladder Wall DevelopmentJournal of Urology, VOL. 176, NO. 6, (2674-2678), Online publication date: 1-Dec-2006. Volume 172Issue 5November 2004Page: 1995-1999 Advertisement Copyright & Permissions© 2004 by American Urological Association, Inc.KeywordsbladderabnormalitiesfetusultrasonographykidneyMetricsAuthor Information MAX MAIZELS More articles by this author SETH A. ALPERT More articles by this author JOHN T.B. HOUSTON More articles by this author RUDY E. SABBAGHA More articles by this author BARBARA V. PARILLA More articles by this author SCOTT N. MacGREGOR More articles by this author Expand All Advertisement PDF downloadLoading ..." @default.
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- W2003272012 title "FETAL BLADDER SAGITTAL LENGTH: A SIMPLE MONITOR TO ASSESS NORMAL AND ENLARGED FETAL BLADDER SIZE, AND FORECAST CLINICAL OUTCOME" @default.
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