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- Essai clinique NCT07614880
Vacuum-Assisted Mini-Percutaneous Versus Transurethral Cystolithotripsy in Pediatric Bladder Stones (VAMPCL-Ped)
Vacuum-Assisted Mini-Percutaneous Cystolithotomy Versus Transurethral Cystolithotripsy in Pediatric Bladder Stones: A Prospective Randomized Study
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Bladder stones in children remain a relevant urological condition, particularly in settings where nutritional, metabolic, infectious, or hydration-related factors may contribute to stone formation. Minimally invasive endoscopic management has largely replaced open cystolithotomy in many centers. Transurethral cystolithotripsy is commonly used, but in young children the small urethral caliber may make repeated instrumentation and fragment extraction technically challenging and may raise concern about urethral mucosal trauma. Percutaneous cystolithotripsy provides an alternative route that may reduce repeated transurethral fragment extraction.
Vacuum-assisted mini-percutaneous cystolithotripsy uses a suprapubic percutaneous access tract and a suction-assisted sheath to maintain visibility and facilitate evacuation of stone dust and fragments during laser lithotripsy. However, pediatric comparative evidence remains limited.
This study is designed as a prospective randomized controlled pilot study including 40 children with bladder stone(s) measuring 10-30 mm. Eligible patients will be randomized in a 1:1 ratio to vacuum-assisted mini-percutaneous cystolithotripsy or transurethral cystolithotripsy. Both procedures will be performed under general anesthesia using Ho:YAG laser lithotripsy. Patients will be followed postoperatively to assess operative, perioperative, and follow-up outcomes. The study aims to generate preliminary comparative data on operative time, safety, stone clearance, postoperative recovery, and follow-up urinary outcomes to inform future adequately powered trials.
Type d'étude
Inscription (Estimé)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Beni Suweif Governorate
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Banī Suwayf, Beni Suweif Governorate, Egypte
- Recrutement
- Urology Department - Beni-Suef University Hospitals
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Contact:
- Hany Fathy Badawy, MD
- Numéro de téléphone: +201149525028
- E-mail: Hanyfathy86@gmail.com
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Contact:
- Mahmoud Abdallah, Md
- Numéro de téléphone: +20 11 55361979
- E-mail: Drhanyfathy86@gmail.com
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Chercheur principal:
- Hany Fathy Badawy, MD
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Enfant
Accepte les volontaires sains
La description
Inclusion Criteria:
- Children aged 2 to 14 years.
- Diagnosis of bladder stone or stones measuring 10-30 mm in maximum cumulative diameter, confirmed by ultrasound.
- Normal upper urinary tract.
- Fit for general anesthesia.
- Written informed consent obtained from parents or legal guardians.
Exclusion Criteria:
- Known urethral stricture or posterior urethral valves.
- Active urinary tract infection at the time of surgery.
- Coagulopathy or uncorrected bleeding disorder.
- Previous open bladder surgery.
- Any anatomical or clinical condition that, in the investigator's judgment, precludes safe endoscopic or percutaneous cystolithotripsy.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Seul
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: Vacuum-Assisted Mini-Percutaneous Cystolithotripsy
Participants randomized to this arm will undergo vacuum-assisted mini-percutaneous cystolithotripsy under general anesthesia using suprapubic percutaneous bladder access and a suction-assisted mini sheath.
Ho:YAG laser lithotripsy will be used for stone fragmentation, with suction-assisted evacuation of stone dust and fragments.
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Surgical treatment of pediatric bladder stones using suprapubic mini-percutaneous bladder access, a suction-assisted mini sheath, and Ho:YAG laser lithotripsy for stone fragmentation and evacuation
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Comparateur actif: Transurethral Cystolithotripsy
Participants randomized to this arm will undergo standard transurethral cystolithotripsy under general anesthesia using the smallest appropriate pediatric semi-rigid ureteroscope.
Ho:YAG laser lithotripsy will be used for stone fragmentation, with fragment evacuation through the transurethral route
|
Standard transurethral endoscopic treatment of pediatric bladder stones using an appropriate pediatric semi-rigid ureteroscope with Ho:YAG laser lithotripsy and transurethral fragment evacuation
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Total Operative Time
Délai: Intraoperative
|
Total operative time will be defined as the time from insertion of the first endoscopic instrument to completion of stone clearance and urethral catheter placement, measured in minutes.
|
Intraoperative
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Stone-Free Rate
Délai: 4 weeks postoperatively
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Stone-free rate will be defined as the proportion of patients with no residual bladder stone fragments on postoperative pelvi abdominl ultrasound. Low-dose non-contrast CT urinary tract will be reserved for equivocal ultrasound findings. Time Frame: 4 weeks postoperatively |
4 weeks postoperatively
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Urethral Mucosal Injury
Délai: Intraoperatively
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Occurrence of visible urethral mucosal injury detected intraoperatively.
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Intraoperatively
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Lithotripsy and Fragment Clearance Time
Délai: Intraoperative
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Time from initiation of laser lithotripsy to endoscopic confirmation of complete stone clearance, measured in minutes.
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Intraoperative
|
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Recurrence or Urethral Stricture-Related Symptoms
Délai: 6 months postoperatively
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Occurrence of recurrent bladder stone symptoms, abnormal urinary stream, suspected urethral stricture symptoms, or need for further diagnostic evaluation
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6 months postoperatively
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Collaborateurs et enquêteurs
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
- Maladies urogénitales
- Maladies urogénitales masculines
- Calculs
- Conditions pathologiques, anatomiques
- Maladies urologiques
- Maladies urogénitales féminines
- Maladies urogénitales féminines et complications de la grossesse
- Urolithiase
- Calculs urinaires
- Maladies de la vessie urinaire
- Conditions pathologiques, signes et symptômes
- Calculs de la vessie urinaire
Autres numéros d'identification d'étude
- FMBSUREC03032026Ahmed
- FMBSUREC/03032026/Ahmed (Autre identifiant: FM-BSU REC)
Plan pour les données individuelles des participants (IPD)
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Description du régime IPD
Informations sur les médicaments et les dispositifs, documents d'étude
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