Voiding dysfunction of sigmoid neobladder in women: a comparative study with men

Functional outcome of robotic-assisted intracorporeal versus extracorporeal neobladder following radical cystectomy: Initial experience

Introduction:

Worldwide, the seventh most commonly diagnosed cancer in the male population is Bladder cancer (BC), while it drops to eleventh when both genders are considered. Radical cystectomy is the surgical treatment of choice for patients with all muscle-invasive and some nonmuscle invasive BCs. An orthotopic continent diversion (neobladder) is preferred whenever possible to achieve a better postoperative quality of life. We attempt to study the functional outcomes of intracorporeal neobladder (ICNB) versus extracorporeal neobladder (ECNB) (ICNB vs. ECNB).

Materials and Methods:

Forty patients who underwent robot-assisted radical cystectomy with neobladder in our institute during the period of March 2016–March 2018 were included in the study. An orthotopic neobladder (Studer method) was created in all our patients. Our main outcomes of interest were peak flow rates, residual urine, attainment of continence, and Pdet at qmax of the neobladder.

Results:

The mean age of patients in our study group was 54 ± 6 years. The mean body mass index was 23 ± 2 kg/m². The mean follow-up period was 24 ± 5 months. Twenty patients underwent ICNB and 20 patients underwent ECNB. The urodynamic assessment was done 1-year postprocedure. The same parameters applied to an intact bladder are used, and results analyzed by comparing it with other studies. Common in the initial postoperative period was incontinence which reduced substantially over time. After 1-year, 75% of patients did not require pads in the daytime, and a meager, <10% used more than one pad per day. There was no difference in outcome between both the groups, which was statistically significant.

Conclusion:

Both ICNB and ECNB groups achieved urodynamically proven values of adequate bladder capacity and compliance. Daytime continence was excellent, and night time continence was good in both groups. Furthermore, there was no significant difference between both the groups as regards to urodynamic parameters. However, continence is attained little earlier in the ICNB group. There is no perceived superiority of ICNB over ECNB.

Robot-assisted Laparoscopic Radical Cystectomy and Sigmoid Orthotopic Neobladder Reconstruction for a Bladder Rhabdomyosarcoma Child: Case Report and Literature Review

A six-month-old child was admitted into our center with complaint of hydronephrosis in June 2018. He was diagnosed as embryoid rhabdomyosarcoma after cystoscopy with biopsy. After 22 Gy radiotherapy and 4 cycles chemotherapy (VAC), robot-assisted radical cystectomy was performed. The orthotopic neobladder was reconstructed with sigmoid colon and bilateral ureter was reimplanted in Politano-Leadbetter technique. The patient was discharged after 14 days and chemotherapy was continued. Recent ultrasound examination showed that his maximal bladder capacity had increased to 120 mL, and intravenous urography revealed no urine leakage. The tumor is in good control and the neobladder works well.

Urodynamic and continence assessment of orthotropic neobladder reconstruction following radical cystectomy in bladder cancer; a prospective, blinded North Indian tertiary care experience

Aim:

The aim of this study is to compare urodynamic and continence parameters among patients undergoing orthotropic neo-bladder substitution with sigmoid or ileal segments. Variations in the Urodynamic parameter between the continent and incontinent patients were also evaluated.

Patients and Methods:

From January 2008 to March 2012, 44 patients underwent ileal neobladder (IN) reconstruction and 36 patients underwent sigmoid neobladder (SN) reconstruction. Evaluation of Urodynamic and Continence parameters was performed at 12 months after surgery.

Results:

The average capacity of IN and SN was 510 ml and 532 ml respectively. The voiding pressure, mean peak flow rates and post void residual urine (PVRU) for IN and SN were 27.5 cm H₂O versus 37 cm H₂O, 15ml/s versus 17ml/s and 36 ml versus 25 ml respectively. Daytime continence for IN and SN was 93% (41/44) and 89% (32/36), and night-time continence was 91% (40/44) and 78% (28/36) respectively. The compliance, maximum cystometric capacity and PVRU in the daytime continent (versus incontinent) were 61 (versus 41), 471 (versus 651) and 22 (versus 124) and in the night-time continent (versus incontinent) were 57 (versus 43), 437 (versus 654) and 18 (versus 105) respectively.

Conclusion:

A neobladder constructed from detubularized ileum or sigmoid achieves urodynamically proven adequate capacity and compliance with 89-93% daytime and 78-91% night time continence. Continent men when compared with incontinent (both daytime and night time) were more likely to have comparatively higher compliance, lower maximum cystometric capacity and lower PVRU. Urodynamic study could predict which incontinent men would improve with pelvic floor exercises and clean intermittent catheterization (CIC).

Long-term functional outcomes of ileal and sigmoid orthotopic neobladder procedures

OBJECTIVES

To retrospectively compare the long-term functional outcomes of ileal and sigmoid orthotopic bladder replacements after radical cystectomy.

METHODS

From 1990 to 2004, 123 male patients underwent orthotopic neobladder reconstruction after cystectomy; 75 underwent ileal neobladder (IN) and 48 sigmoid neobladder (SN) procedures. The observation period was 12.3 to 151.6 months (median 61.1). The voiding function of each patient was evaluated at three different observation periods: time 1, less than 5 years; time 2, 5 to 10 years; and time 3, more than 10 years after surgery.

RESULTS

Almost every SN patient could void without assistance throughout the observation period. In contrast, the rate of spontaneous voiders was significantly low for the IN patients. Daytime continence was significantly worse in the SN than in the IN patients at time 2 (P <0.01), and the difference in nighttime continence between the two groups was even larger during the first 10 years after surgery (P <0.01). The postvoid residual urinary volume at time 2 was significantly larger in the IN than in the SN patients (P <0.01). No significant change in neobladder capacity was observed for either procedure throughout the observation period. The mean serum creatinine level was stable for both groups throughout the follow-up period.

CONCLUSIONS

The IN and SN procedures result in different outcomes. The rate of spontaneous voiders was better in the SN group than in the IN group. The IN tends to provide better continence than the SN. In choosing a neobladder procedure, a proper understanding of the prospects of voiding functions is required.