PMID- 15543398 OWN - NLM STAT- MEDLINE DCOM- 20061010 LR - 20191109 IS - 0041-8781 (Print) IS - 0041-8781 (Linking) VI - 59 IP - 5 DP - 2004 Oct TI - Renal and urinary findings in 20 patients with Williams-Beuren syndrome diagnosed by fluorescence in situ hybridization (FISH). PG - 266-72 AB - PURPOSE: Williams-Beuren syndrome is a rare multiple anomalies/mental retardation syndrome caused by deletion of contiguous genes at chromosome region 7q11.23. The aim of this work was to determine the frequency and the types of renal and urinary tract anomalies in 20 patients with Williams-Beuren syndrome. METHODS: The fluorescence in situ hybridization test using a LSI Williams syndrome region DNA probe was performed for all 20 patients to confirm the diagnosis of Williams-Beuren syndrome. A prospective study was performed in order to investigate renal and urinary aspects using laboratory assays to check renal function, ultrasonography of the kidneys and urinary tract, voiding cystourethrogram and urodynamics. RESULTS: Deletion of the elastin gene (positive fluorescence in situ hybridization test) was found in 17 out of 20 patients. Renal alterations were diagnosed in 5 of 17 (29%) the patients with the deletion and in 1 of 3 patients without the deletion. Fourteen patients with the deletion presented dysfunctional voiding. Arterial hypertension was diagnosed in 3 patients with deletions and 1 of these presented bilateral stenosis of the renal arteries. CONCLUSIONS: Due to the high incidence of renal and urinary abnormalities in Williams-Beuren syndrome, performing a systematic laboratory and sonographic evaluation of the patients is recommended. FAU - Sugayama, Sofia Mizuho Miura AU - Sugayama SM AD - Genetics Clinic Unit, Department of Pediatrics, Hospital das Clinicas, Faculty of Medicine, University of Sao Paulo - Sao Paulo/SP, Brazil. sofiamms@uol.com.br FAU - Koch, Vera Hermina Kalika AU - Koch VH FAU - Furusawa, Erica Arai AU - Furusawa EA FAU - Leone, Claudio AU - Leone C FAU - Kim, Chong Ae AU - Kim CA LA - eng PT - Journal Article DEP - 20041029 PL - Brazil TA - Rev Hosp Clin Fac Med Sao Paulo JT - Revista do Hospital das Clinicas JID - 0415246 SB - IM MH - Child MH - Child, Preschool MH - Female MH - Humans MH - Hypertension/diagnosis MH - *In Situ Hybridization, Fluorescence MH - Infant MH - Kidney/abnormalities MH - Kidney Diseases/diagnosis MH - Male MH - Prospective Studies MH - Urinary Tract/*abnormalities MH - Williams Syndrome/complications/*diagnosis EDAT- 2004/11/16 09:00 MHDA- 2006/10/13 09:00 CRDT- 2004/11/16 09:00 PHST- 2004/11/16 09:00 [pubmed] PHST- 2006/10/13 09:00 [medline] PHST- 2004/11/16 09:00 [entrez] AID - S0041-87812004000500008 [pii] AID - 10.1590/s0041-87812004000500008 [doi] PST - ppublish SO - Rev Hosp Clin Fac Med Sao Paulo. 2004 Oct;59(5):266-72. doi: 10.1590/s0041-87812004000500008. Epub 2004 Oct 29.