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Renal SWE as a Predictor After Pediatric Pyeloplasty for UPJO (UPJO-SWE)

28. mai 2026 oppdatert av: Hany Fathy Badawy, MD, Beni-Suef University

Renal Cortical Shear Wave Elastography as a Predictor of Functional Recovery After Open Pyeloplasty for Unilateral Pediatric Ureteropelvic Junction Obstruction: A Prospective Cohort Study

Ureteropelvic junction obstruction is an important cause of hydronephrosis and potentially reversible renal functional impairment in children. Although open pyeloplasty is an effective standard treatment, the degree of postoperative renal functional recovery varies between patients.

This prospective observational cohort study will evaluate whether renal cortical shear wave elastography can predict renal functional recovery after open pyeloplasty in children with unilateral primary ureteropelvic junction obstruction. Renal cortical shear wave elastography will be assessed before surgery and during follow-up, and the change in elastography values will be compared with renal isotope findings after surgery.

The primary objective is to evaluate the predictive value of the change in renal cortical shear wave elastography from baseline to 3 months after surgery for isotope-defined renal functional recovery at 6 months after open pyeloplasty.

Studieoversikt

Status

Rekruttering

Forhold

Detaljert beskrivelse

This is a prospective longitudinal observational cohort study conducted at the Department of Urology, Faculty of Medicine, Beni-Suef University.

The study will include children aged 6 months to 18 years with unilateral primary ureteropelvic junction obstruction who are scheduled for open dismembered pyeloplasty. Eligible children will undergo standard preoperative clinical assessment, laboratory investigations, renal ultrasonography, renal cortical shear wave elastography, and renal isotope assessment.

Preoperative imaging will include renal ultrasonography to assess hydronephrosis, anteroposterior pelvic diameter, and renal cortical thickness. Renal cortical shear wave elastography will be performed to measure cortical stiffness in the affected kidney. Renal isotope assessment will include diuretic renography for differential renal function and drainage assessment, with renal cortical scintigraphy when clinically indicated according to the approved protocol.

All included patients will undergo open dismembered pyeloplasty according to standard surgical principles. Postoperative follow-up will include clinical assessment, renal ultrasonography, and renal cortical shear wave elastography at 3 and 6 months. A repeat renal isotope study will be performed at 6 months after surgery to reassess differential renal function and drainage.

The primary outcome is the predictive performance of the change in renal cortical shear wave elastography from baseline to 3 months postoperatively for 6-month isotope-defined renal functional recovery after pyeloplasty. Secondary outcomes include the association between 3-month postoperative shear wave elastography and functional recovery, longitudinal changes in shear wave elastography, postoperative changes in differential renal function and drainage parameters, and improvement in ultrasonographic parameters after pyeloplasty.

Studietype

Observasjonsmessig

Registrering (Antatt)

84

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studer Kontakt Backup

Studiesteder

  • Egypt
    • Beni Suweif Governorate
      • Banī Suwayf, Beni Suweif Governorate, Egypt
        • Rekruttering
        • Department of Urology- Beni-Suef University Hospitals
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Barn
  • Voksen

Tar imot friske frivillige

Nei

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

Children aged 6 months to 18 years with unilateral primary ureteropelvic junction obstruction who are scheduled for open dismembered pyeloplasty at the Department of Urology, Faculty of Medicine, Beni-Suef University.

Beskrivelse

Inclusion Criteria:

  • Children aged 6 months to 18 years.
  • Diagnosis of unilateral primary ureteropelvic junction obstruction.
  • Planned for open dismembered pyeloplasty.
  • Availability of preoperative renal ultrasonography, renal cortical shear wave elastography, and diuretic renography.
  • Written informed consent obtained from parent or legal guardian.

Exclusion Criteria:

  • Bilateral ureteropelvic junction obstruction.
  • Secondary ureteropelvic junction obstruction.
  • Previous ipsilateral upper urinary tract surgery.
  • Associated major urinary tract anomalies likely to independently affect renal function, including vesicoureteral reflux, megaureter, duplex system, posterior urethral valves, or ectopic kidney.
  • Active urinary tract infection at the time of assessment.
  • Known intrinsic renal parenchymal disease unrelated to obstruction.
  • Inability to obtain reliable shear wave elastography measurements.
  • Incomplete planned follow-up.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Kohorter og intervensjoner

Gruppe / Kohort
Children With Unilateral UPJO Undergoing Open Pyeloplasty
Children aged 6 months to 18 years with unilateral primary ureteropelvic junction obstruction scheduled for open dismembered pyeloplasty. Participants will undergo preoperative renal ultrasonography, renal cortical shear wave elastography, and renal isotope assessment, followed by postoperative clinical, ultrasound, shear wave elastography, and isotope follow-up according to the study protocol.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Predictive Accuracy of 3-Month Change in Renal Cortical SWE for 6-Month Functional Recovery
Tidsramme: Baseline to 6 months after open pyeloplasty
The change in renal cortical shear wave elastography from baseline to 3 months after open pyeloplasty will be evaluated for its ability to predict renal functional recovery at 6 months.
Baseline to 6 months after open pyeloplasty

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Association Between 3-Month Renal Cortical SWE and 6-Month Functional Recovery
Tidsramme: 3 months to 6 months after open pyeloplasty
The association between the renal cortical shear wave elastography value measured at 3 months after open pyeloplasty and renal functional recovery at 6 months will be assessed.
3 months to 6 months after open pyeloplasty
Association Between 6-Month Change in Renal Cortical SWE and 6-Month Isotope Findings
Tidsramme: Baseline to 6 months after open pyeloplasty
The change in renal cortical shear wave elastography from baseline to 6 months after open pyeloplasty will be assessed in relation to 6-month renal isotope findings.
Baseline to 6 months after open pyeloplasty
Longitudinal Change in Renal Cortical SWE After Pyeloplasty
Tidsramme: Baseline, 3 months, and 6 months after open pyeloplasty.
Renal cortical shear wave elastography values will be compared over time at baseline, 3 months, and 6 months after open pyeloplasty to assess postoperative changes in renal
Baseline, 3 months, and 6 months after open pyeloplasty.

Andre resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in Ultrasonographic Anteroposterior Pelvic Diameter
Tidsramme: Baseline, 3 months, and 6 months after open pyeloplasty
Anteroposterior pelvic diameter of the affected kidney will be measured by renal ultrasonography before surgery and during postoperative follow-up to assess improvement in hydronephrosis.
Baseline, 3 months, and 6 months after open pyeloplasty

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Beni-Suef University

Etterforskere

  • Hovedetterforsker: Hany F Badawy, Faculty of medicine, BeniSuef University

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

6. mai 2026

Primær fullføring (Antatt)

1. april 2027

Studiet fullført (Antatt)

1. mai 2027

Datoer for studieregistrering

Først innsendt

28. mai 2026

Først innsendt som oppfylte QC-kriteriene

28. mai 2026

Først lagt ut (Faktiske)

3. juni 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

3. juni 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

28. mai 2026

Sist bekreftet

1. mai 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • FMBSUREC05052026BadawySWE
  • FMBSUREC/05052026/Badawy (Annen identifikator: FM-BSU REC)

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

IPD-planbeskrivelse

Individual participant data will not be shared. Only aggregated, de-identified study results will be reported. Individual-level pediatric clinical and imaging data will remain confidential and will be accessible only to the study investigators and authorized regulatory or ethics committee representatives if required.

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .

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