Outcome of Renal Transplant on a Defunctionalized Bladder

NCT ID: NCT02665572

Last Updated: 2021-02-25

Basic Information

• Recruitment Status: UNKNOWN
• Clinical Phase: NA
• Total Enrollment: 32 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2015-08-31
• Study Completion Date: 2021-10-31

Brief Summary

In this study, investigators will prospectively evaluate the outcome of renal transplantation into a defunctionalized bladder by comparing direct transplantation into this defunctionalized bladder and pre-transplant programmed bladder cycling.

Detailed Description

Study population:

The study will include patients maintained on hemodialysis for more than 12 months, have oliguria or anuria, reduced bladder capacity, have no history of lower urinary tract dysfunction and have no evidence of urological cause of renal failure. Patients with history of lower urinary tract symptoms before developing renal failure and those with lower urinary tract disease resulting in renal failure will be excluded.

Study design:

It is a randomized controlled trial comparing the outcome of programmed bladder cycling before the time of renal transplantation and direct transplantation without bladder cycling in patients with defunctionalized bladder. Patients, who meet the inclusion criteria, will be randomly allocated into two groups. The first group will undergo renal transplantation on the defunctionalized bladder without bladder recycling. The second group will undergo renal transplantation after bladder recycling.

Measurements:

All patients will be diagnosed by proper history taking, cystoscopy, ascending cystogram and cystometry in order to confirm the diagnosis of reduced bladder capacity and exclude any organic or neurological cause. Bladder recycling will be done by the patient after proper education. It will be started by the instillation of the sterile water in the bladder in amount equal to the estimated bladder capacity. Then the amount will be gradually increased till the patient can withstand filling the bladder with 300 cc of sterile water for 2 hours. Any associated complications will be reported and the time needed to reach the due bladder capacity will be recorded. The procedure of renal transplantation will be carried out according to the hospital protocol and the ureteroneocystostomy will be done by a non-stented Leich Gregoir technique.

Assuming that the bladder will regain its activity and full capacity after 8 weeks of transplantation, all patients will be assessed 3 months after transplantation by the following:

1. IPSS questionnaire in order to evaluate the lower urinary tract symptoms.

2. Ascending cystogram.

3. Cystometry.

4. Graft function.

Outcome:

The primary outcome is to evaluate whether bladder recycling is efficient to restore bladder function prior to renal transplantation in terms of IPSS score, and urodynamic evaluation. The secondary outcome is to evaluate the differences in graft and patients outcome between groups.

Power calculation and Statistical analysis:

We hypothesized that at 3 months postoperatively; recipients without bladder training will be non-inferior to those underwent bladder training in terms of cystometric capacity. Based on this, to achieve a difference in mean cystometric capacity of 50 cc in favor of bladder training patients, 16 patients in each group are required to achieve a power of 80% and an α error of 0.05. Statistical power is determined using medcalc version 12.5.0.0 software and all statistical analyses will be performed using IBM version 20 statistical software.

Conditions

Renal Transplantation Into a Defunctionalized Bladder

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

renal transplant without bladder recycling

the patients allocated to this arm and met inclusion criteria will undergo renal transplant without prior recycling of the bladder

Group Type: NO_INTERVENTION

No interventions assigned to this group

renal transplantation with bladder recycling

the patients allocated in this arm will undergo bladder recycling prior to renal transplantation

Group Type: ACTIVE_COMPARATOR

bladder recycling

Intervention Type: BEHAVIORAL

Bladder recycling will be done by the patient after proper education. It will be started by the instillation of the sterile water in the bladder in amount equal to the estimated bladder capacity. Then the amount will be gradually increased till the patient can withstand filling the bladder with 300 cc of sterile water for 2 hours.

Interventions

bladder recycling

Bladder recycling will be done by the patient after proper education. It will be started by the instillation of the sterile water in the bladder in amount equal to the estimated bladder capacity. Then the amount will be gradually increased till the patient can withstand filling the bladder with 300 cc of sterile water for 2 hours.

Intervention Type: BEHAVIORAL

Eligibility Criteria

Inclusion Criteria

• patients maintained on hemodialysis for more than 12 months
• have oliguria or anuria
• reduced bladder capacity
• have no history of lower urinary tract dysfunction and have no evidence of urological cause of renal failure.

Exclusion Criteria

• Patients with history of lower urinary tract symptoms before developing renal failure and
• those with lower urinary tract disease resulting in renal failure will be excluded

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Mansoura University

OTHER

Sponsor Role: lead

Responsible Party

Mohamed Hassan Zahran

Assistant lecturer of urology and renal transplantation

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Urology and Nephrology Center

Al Mansurah, Dakahlia Governorate, Egypt

Site Status: RECRUITING

Countries

Egypt

Central Contacts

Mohamed H Zahran, Dr

Role: CONTACT

zahranmha@yahoo.com

0502202638

Facility Contacts

Mohamed H Zahran, Dr

Role: primary

zahranmha@yahoo.com

0502202638

Other Identifiers

Zahran MH3182015

Identifier Type: -

Identifier Source: org_study_id