2017
Validation of the ureteral diameter ratio for predicting early spontaneous resolution of primary vesicoureteral reflux
Arlen AM, Kirsch AJ, Leong T, Cooper CS. Validation of the ureteral diameter ratio for predicting early spontaneous resolution of primary vesicoureteral reflux. Journal Of Pediatric Urology 2017, 13: 383.e1-383.e6. PMID: 28256423, DOI: 10.1016/j.jpurol.2017.01.012.Peer-Reviewed Original ResearchConceptsPrimary vesicoureteral refluxUreteral diameter ratioVesicoureteral refluxReflux gradeSpontaneous resolutionVUR gradeMultivariable modelUreteral diameterDistal ureteral diameter ratioGrade of VURLargest ureteral diameterPersistent vesicoureteral refluxVesicoureteral reflux gradeGrade of refluxImportant prognostic factorSpontaneous resolution rateValuable prognostic informationL3 vertebral bodyUnit increaseExternal validation studyHighest likelihood ratioVUR timingPersistent diseasePrimary outcomePrognostic factors
2016
Delayed upper tract drainage on voiding cystourethrogram may not be associated with increased risk of urinary tract infection in children with vesicoureteral reflux
Garcia-Roig M, Arlen AM, Huang JH, Filimon E, Leong T, Kirsch AJ. Delayed upper tract drainage on voiding cystourethrogram may not be associated with increased risk of urinary tract infection in children with vesicoureteral reflux. Journal Of Pediatric Urology 2016, 12: 312.e1-312.e6. PMID: 27492248, DOI: 10.1016/j.jpurol.2016.04.056.Peer-Reviewed Original ResearchConceptsUpper tract drainageCulture-proven UTIsVesicoureteral refluxUTI ratesVUR gradeUTI riskRisk factorsHigh inter-observer correlationSetting of obstructionUTI risk factorsUrinary tract infectionPrimary vesicoureteral refluxPredictors of infectionAvailable prognostic informationSignificant predictorsYears of ageEndoscopic VUR treatmentHydrodistention gradeInter-observer agreementRecurrent UTIUTI incidenceVUR timingEndoscopic findingsInter-observer correlationTract infections