Comparison Capsule Sparing Cystectomy and Radical Cystoprostatectomy in Men with Bladder Cancer

CSC group：patients undergoing transurethral resection and enucleation of the prostate first, do not open the bladder neck to maintain the integrity of the bladder neck. The enucleated prostate capsule is preserved under laparoscopic surgery, and the urinary catheter is stretched during the operation to avoid implantation and metastasis.

CRC group：patients undergoing conventional radical cystoprostatectomy. All the patients undergoing detaenial sigmoid neobladder after cystectomy and accept at least 36 months follow up.

Followup: Patients were followed up at every 3-6 mo after surgery in the first 2 yr. The last follow-up was in the 36th month. Biochemical examination、blood and urine routine tests were done every 3 to 12 months. Urodynamic investigation, cystoscopic examination, pelvic computerized tomography, renal dynamic imaging and retro-cystogram were also performed every 3 to 12 months postoperatively.

Postoperative complications were classified as early (90 days or less) and late (greater than 90 days). Early and late complications were subdivided into those related and not related to the neobladder. Complication grade was classified according to the Clavien-Dindo system. Major complications were defined as grade III or higher.

During the follow-up period, patients were asked about daytime and night-time continence and erectile function (EF). Bladder Cancer Index and International Index of Erectile Function-5 (IIEF-5) are designed to evaluate patients' urinary control and sexual function

Inclusion criteria

• Adult males aged 20 and above and healthy volunteers are not accepted;
• Bladder carcinoma in situ、T1G3 tumor、muscle invasive bladder cancer with clinical stage of cT2-T3N0M0 (If the clinical staging before neoadjuvant therapy meets the inclusion criteria, patients who have decreased to below cT2 after neoadjuvant therapy can also choose to be included according to the patient's wishes).
• Recurrent bladder cancer: recurrent NMIBC after treatment and Carcinoma in situ that does not respond to BCG vaccine treatment.
• ECOG score is 0 or 1.
• Voluntarily signed the informed consent.

Exclusion criteria

• Preoperative serum creatinine more than 2.26mg/dl Or 200μmol/L.
• Cancer invaded prostate or urethral (confirmed by the pathology).
• Patients with distant metastasis.
• Abnormal PSA level, or suspected patients with unconfirmed prostate cancer .
• A history of other malignant tumors within three years.
• sigmoid chronic inflammation, like ulcerative colitis or intestinal tuberculosis, and so on.
• Severe cardiopulmonary and liver dysfunction, combined with other serious diseases
• Other conditions that have been approved by a urologist for not suitable for neobladder surgery.