Functional Evaluation of Modified Studer and Modified Spiral Orthotopic Ileal Neobladders After Radical Cystectomy.

NCT ID: NCT05673044

Last Updated: 2023-01-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

52 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-01-01

Study Completion Date

2024-12-15

Brief Summary

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Bladder cancer is the most common malignant neoplasm of the urinary system. Neoadjuvant chemotherapy followed by radical cystectomy (RC) is the standard treatment for Muscle invasive bladder cancer.

Studer neobladder is one of the commonly used techniques for orthotopic reconstruction, originally utilizing 60-65 cm of the ileum. However, this leads to formation of a flaccid reservoir.

Nowadays, most techniques use 40-45 cm ileal segment only due to the proven increased reservoir capacity over time. So Moeen et al developed a modified Studer ileal neobladder by using a shorter ileal segment (40 cm only).

Upper urinary tract protection is important in neobladder reconstruction. One of the proposed anti-reflux techniques is using an isoperistaltic limp which was about 20 cm. This segment will be compressed by the elevated intra-abdominal pressure during Valsalva voiding to prevent reflux. However, this length was subjected to multiple reductions in multiple studies. Moeen et al used an 8 cm straight isoperistaltic ileal chimney.

In spiral neobladder the ureters are implanted into the reservoir using a non-refluxing split-cuff nipple technique. It has good functional and urodynamic parameters. Moeen et al added 8 cm as RT sided angled chimney over the neobladder. The ureters were implanted directly in an end to side manner. They assumed that adding this angulation to this short chimney decreases reflux and protect the UUT, without adding time to develop an anti-reflux technique.

Detailed Description

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Conditions

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Orthotopic Neobladders

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Caregivers

Study Groups

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modified Studer ileal neobladder

the segment of the iso-peristaltic segment is 8 cm and the total length of the ileum used is 40 cm instead of 60 cm.

Group Type EXPERIMENTAL

modified Studer ileal neobladder

Intervention Type PROCEDURE

orthotopic ileal neobladders

modified spiral ileal neobladder

the chimney of the spiral neobladder will be an angled one instead of straight.

Group Type EXPERIMENTAL

modified Studer ileal neobladder

Intervention Type PROCEDURE

orthotopic ileal neobladders

Interventions

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modified Studer ileal neobladder

orthotopic ileal neobladders

Intervention Type PROCEDURE

Other Intervention Names

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modified spiral ileal neobladder

Eligibility Criteria

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Inclusion Criteria

1. Patients with muscle invasive bladder cancer (T2-3N0-1M0).
2. Patients with T1 high grade bladder cancer with failed intravesical immunotherapy.
3. Bladder neck area including the trigone free from cancerous involvement.
4. Patients accepting the operation who are medically fit.

Exclusion Criteria

1. Patients with serum creatinine ≥ 1.8 mg/dl.
2. Patients with intestinal disorders including previous bowel resections, severe diverticulosis or inflammatory bowel disease.
3. Inability to do perform clean intermittent catheterization (CIC) due to physical or mental impairment.
4. Sphincteric deficiency or urethral stricture disease causing voiding dysfunction.
5. Positive prostatic urethral biopsy.
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Assiut University

OTHER

Sponsor Role lead

Responsible Party

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Abdelrahman Atef Ali

Assistant lecturer of Urology Assuit University Hospital

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Diaa Eldin hameed Sayed, PhD

Role: STUDY_DIRECTOR

cheif of urological oncology department

Locations

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Assuit university

Asyut, Assuit, Egypt

Site Status

Countries

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Egypt

Central Contacts

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Abdelrahman Atef Ali, master degree

Role: CONTACT

00201000318832

Diaa A Sayed, PhD

Role: CONTACT

01203888849

Facility Contacts

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Abdelrahman Atef Ali, M.D

Role: primary

01000318832

Other Identifiers

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Assuituro

Identifier Type: -

Identifier Source: org_study_id

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