Urinary Diversion Following Cystectomy

Urinary diversion is an essential component of the surgical procedure after cystectomy. Replacement with an orthotopic ileal neobladder should be the first choice if external urethral sphincter sparing surgery is possible, offering good long-term function, quality of life and patient's acceptance with few complications.The possible use of a variety of alternative intestinal segments widen the horizon of the reconstructive surgeon, allowing him or her to be prepared for unusual cases.Contraindications for orthotopic neobladder reconstruction include tumour location, reduced renal, liver, intestinal function, intellectual ability and physical handicaps.It is therefore important to custom tailor the appropriate mode of diversion for individual patients with a variety of options available, including ureterocutaneous stomas, intestinal conduits and continent catheterizable reservoirs and orthotopic neobladders. All these techniques require detailed knowledge of the possible metabolic problems encountered by using gastrointestinal segments and how they react in contact with urine. Modern surgical techniques such as nerve sparing surgery have the ability to preserve postoperative continence with voluntarily micturition as well as sexual function. In addition, preliminary experimental data hold great promise that the “off shelf” bladder substitute may become a technique of choice in the future, avoiding common problems encountered using current technqiues.     

The "B-bladder"-an ileocolonic neobladder with a chimney: surgical technique and long-term results

OBJECTIVES: A modified version of the "Le Bag" ileocolonic neobladder with a "Studer"-like ileal chimney (B-bladder) is presented. The surgical technique, perioperative complications, and long-term results, including cancer control and continence, are described. METHODS: Twenty-nine patients underwent radical cystectomy and urinary diversion to an orthotopic ileocolonic neobladder with an ileal chimney. All operations were done by a single surgeon. Preoperative, perioperative and postoperative data were recorded. Median duration of follow-up was 3.4 years. RESULTS: The operation was technically successful in all cases. Late complications included recurrent urinary tract infection (17%) and uretero-neobladder anastomotic stricture (3%), both at acceptable rates. Postoperative daytime continence was excellent. Cancer control was satisfactory during follow-up; 11 patients (38%) died of disease progression with distant metastases. Median survival was 71.1 months. CONCLUSIONS: The B-bladder maintains the simplicity of preparation of the original "Le-Bag" neobladder while gaining the advantages of ureteral anastomosis to an ileal chimney. The incidence of perioperative complications is low and long-term results with regard to cancer control, continence, and complications are excellent.     

Renal function in the setting of urinary diversion

Incorporating bowel into the urinary tract sets the stage for a potentially dangerous situation for the upper part of this tract. Obstruction, reflux and chronic bacteriuria may develop, all of which can all be detrimental. Most reports on renal function have used IVP and serum creatinine only, methods which are inadequate for proper assessment. Long-term follow-up of patients with ileal conduit diversion reveals a high incidence of morphological and/or functional damage to the kidneys. Refluxing techniques for implanting the ureters have usually been employed. In patients with continent cutaneous diversion or orthotopic bladder substitution, some recent publications have shown rather well preserved glomerular filtration rates. Traditionally, antirefluxing ureteric implantation has been used in these patients. There is presently a trend towards refluxing anastomosis in this setting, providing a low pressure pouch has been constructed. However, pressure can be high in such pouches and bacteriuria is common. The consequences for the fate of the upper urinary tract is unknown and caution should be exercised in recommending such techniques. There is clearly a need for prospective randomized controlled studies on the issue of refluxing versus antirefluxing anastomosis in continent urinary reconstruction. Patients with continent or non-continent diversion should have lifelong follow-up with regard to the upper urinary tract.     

Sexuality preserving cystectomy and neobladder (SPCN): functional results of a neobladder anastomosed to the prostate

OBJECTIVES: In order to preserve the sexual functions in patients in need of a cystectomy, a feasibility study has been performed. METHODS: In 24 male patients the seminal vesicles and the prostate were left in situ and a Studer type neobladder was anastomosed to the lateral edge of the prostate. RESULTS: Storage and voiding strongly resembled the patterns reported in neobladder patients with the anastomosis directly to the urethra. Four of the 24 males needed to perform clean intermittent catheterisation (CIC). All but one patients had daytime continence. Three patients needed a pad at night. Five patients had erectile dysfunction, of whom two responded well to sildenafil treatment, one had good rigiscan measured nightly erectile function and one had poor erections prior to the operation. Half of the patients had antegrade ejaculation, two patients reported sometimes antegrade and sometimes retrograde ejaculation. CONCLUSION: This feasibility trial showed that in the majority of our patients the remaining prostate does not interfere with micturition and the sexual functions were preserved.     

A Critical Analysis of Orthotopic Bladder Substitutes in Adult Patients with Bladder Cancer: Is There a Perfect Solution?

Context

Orthotopic bladder substitute (OBS) has been popularized over the past 2 decades as a diversion following radical cystectomy for invasive bladder cancer. Various reports, mostly single-center experiences, are published on patients with OBS.

Objective

This study reviews the literature regarding indications, postoperative care, complications, quality-of-life measures, as well as functional and oncologic outcomes that have been published on patients with OBS.

Evidence acquisition

An English-language literature review of the Medline database (1990 to January 2010) of published data on patients with OBS following radical cystectomy for bladder cancer was undertaken. Articles that included surgery for noncancer etiology were excluded.

Evidence synthesis

Indications and patient selection criteria have significantly widened over the past 2 decades. Comparable oncologic data have been reported between patients with OBS versus other diversions. Secondary urethral tumors seem less common in patients with OBS compared with those with conduits or continent cutaneous diversions. Durable daytime and nocturnal continence is achieved in 85–90% and 60–80%, respectively. Continence is inferior in elderly patients with OBS. Urinary retention remains significant in the female patients, ranging from 25% to 50%. Complications including electrolyte disturbances, altered sensorium and drug metabolism, mucus retention, rupture, urinary tract infections, and upper tract deterioration are reviewed.

Conclusions

Indications for OBS following radical cystectomy in patients with invasive bladder cancer have significantly widened over the past 2 decades. An OBS should be offered to both male and female patients in the absence of contraindications. Good long-term functional and oncologic outcomes can be achieved in patients with OBS treated in high-volume institutions by experienced surgeons with specific knowledge in the field. Preoperative patient information, patient selection, surgical techniques, and careful postoperative follow-up are the cornerstones to achieve good long-term results.     

膀胱癌根治术后T型回肠新膀胱术的临床应用

目的探讨膀胱癌根治术后T型回肠新膀胱术的手术方法及临床应用价值。方法对25例膀胱癌患者施行T型回肠新膀胱术：截取一段54 cm左右的回肠,利用远端的44 cm肠管做成储尿囊,而近端的10 cm肠管作为新膀胱的输入袢,并通过将输入袢远端的5 cm肠管包埋于构成储尿囊两肠管之间的浆膜隧道内而形成抗返流机制。结果25例手术经过顺利,术后3周拔除尿管后均能自控排尿,尿量为50～200 ml。术后3个月复查尿常规无异常,肾功能及电解质无异常。尿动力学检查,新膀胱最大容量为（327.3±62.7）ml,最大尿流率为（16.2±7.9）ml/s,充盈期膀胱内压力为0～8 cmH2O,排尿期膀胱内压力为8～16cmH2O,剩余尿为0～40 ml。静脉肾盂造影或B超检查,结果表明无肾积水、无输尿管扩张。膀胱造影未见输尿管返流。结论原位T型回肠新膀胱术具有良好的可操作性、较好的尿控及排尿能力,是一种良好的尿流改道术,值得临床推广应用。     

Robot-assisted-radical-cystectomy with total intracorporeal Y neobladder: Analysis of postoperative complications and functional outcomes with urodynamics findings

ObjectivesTo describe our robotic Y intracorporeal neobladder (ICNB) technique and to report its post-operative complications and urodynamics (UD) findings.Subjectsand Methods: In this prospective study we enrolled patients affected by MIBC (T1-T4N0–N1M0) from 01/2017 to 06/2021 at our Centers. All the patients underwent robotic radical cystectomy (RARC) with Y–ICNB reconfiguration. Early and late complications were collected and classified according to Clavien-Dindo. Continence and potency at 1, 3, 6 and 12 months were evaluated. At the 3rd month of follow-up patients underwent UD. Finally, in a retrospective match paired analysis the functional outcomes of Y RARC patients were compared with a cohort of open Y radical cystectomy.Results45 patients were enrolled. Overall 30-day complications were observed in 25 (55,5%) patients and 30 to 90-days complications in 4 (8,9%). 9 patients (20%) had Clavien ≥3 complications. UDs revealed median neobladder capacity of 268 cc, with a median compliance of 13 ml/cm H20; the voiding phase showed a voiding volume and a post void residual (PVR) of 154 cc and 105 cc respectively. At 12 months of follow-up 4.4%, 15.5% and 4.4% of the patients experienced urge, stress and mix urinary incontinence respectively. The comparison between Y RARC and Y open RC revealed a higher neobladder capacity with open approach (p = 0.049) with subsequent better findings during the voiding phase in terms of maximum flow (p = 0.002), voiding volume (p = 0.001) and PVR (p = 0.01). Focusing on continence recovery, a slight trend in favor of RARC was shown without reaching the statistical significance.ConclusionsRobotic Y–ICNB is feasible and safe as shown by the low rate of postoperative complications. Satisfying UD functional outcomes are achievable, both during filling and voiding phase.     

Perioperative and mid-term oncologic outcomes of robotic assisted radical cystectomy with totally intracorporeal neobladder: Results of a propensity score matched comparison with open cohort from a single-centre series

Aim

In this study, we compared perioperative and oncologic outcomes of patients treated with either open or robot-assisted radical cystectomy and intracorporeal neobladder at a tertiary care center.

Functional evaluation of a modified Studer ileal neobladder

ObjectivesTo evaluate the results of using a shorter ileal segment (40 cm only) in reconstructing Studer ileal neobladder after radical cystectomy.Subjects and methodsRadical cystectomy and modified Studer ileal neobladder was performed in 60 patients for invasive bladder cancer. Only 40 cm of the ileum was used; 32 cm segment for constructing the body of the neobladder, while the remaining 8 cm as an isoperistaltic intact limb for ureteral reimplantation. After one year, evaluation included clinical, laboratory, radiographic and urodynamic studies to determine the functional and oncological outcomes.ResultsEarly complications occurred in 5 patients (8.6%). According to the modified Clavien system, two patients had grade I complications, IIIb occurred in one patient and two patients had grade V complications. Late complications (8.6%) included incisional hernia in 2 patients, deep venous thrombosis, bilateral uretero-ileal anastomotic stricture and intestinal obstruction each occurred in one patient. At one year, daytime and nighttime continence was 93.1% and 89.7%, respectively. Reflux was observed in 6 patients (10.3%) which was unilateral in 3 patients and bilateral in 3 without affecting the renal functions. Neobladder pressure was 7–18 cmH₂O at half capacity and 13–38 cmH₂O at full capacity with no uninhibited contractions.ConclusionMinimizing the length of the ileum for Studer neobladder reconstruction is feasible and with acceptable results.