Systematic review of the oncological and functional outcomes of pelvic organ‐preserving radical cystectomy ( <scp>RC</scp> ) compared with standard <scp>RC</scp> in women who undergo curative surgery and orthotopic neobladder substitution for bladder cancer
Bibliographic record
Abstract
CONTEXT: Pelvic organ-preserving radical cystectomy (POPRC) for women may improve postoperative sexual and urinary functions without compromising the oncological outcome compared with standard radical cystectomy (RC). OBJECTIVE: To determine the effect of POPRC on sexual, oncological and urinary outcomes compared with RC in women who undergo standard curative surgery and orthotopic neobladder substitution for bladder cancer. EVIDENCE ACQUISITION: Medline, Embase, Cochrane controlled trials databases and clinicaltrial.gov were systematically searched for all relevant publications. Women with bladder cancer who underwent POPRC or standard RC and orthotopic neobladder substitution with curative intent were included. Prospective and retrospective comparative studies and single-arm case series were included. The primary outcomes were sexual function at 6-12 months after surgery and oncological outcomes including disease recurrence and overall survival (OS) at >2 years. Secondary outcomes included urinary continence at 6-12 months. Risk of bias (RoB) assessment was performed using standard Cochrane review methodology including additional domains based on confounder assessment. EVIDENCE SYNTHESIS: The searches yielded 11 941 discrete articles, of which 15 articles reporting on 15 studies recruiting a total of 874 patients were eligible for inclusion. Three papers had a matched-pair study design and the rest of the studies were mainly small, retrospective case series. Sexual outcomes were reported in seven studies with 167/194 patients (86%) having resumed sexual activity within 6 months postoperatively, with median (range) patients' sexual satisfaction score of 88.5 (80-100)%. Survival outcomes were reported in seven studies on 197 patients, with a mean follow-up of between 12 and 132 months. At 3 and 5 years, cancer-specific survival was 70-100% and OS was 65-100%. In all, 11 studies reported continence outcomes. Overall, the daytime and night-time continence rates were 58-100% and 42-100%, respectively. Overall, the self-catheterisation rate was 9.5-78%. Due to poor reporting and large heterogeneity between studies, instead of subgroup-analysis, a narrative synthesis approach was used. The overall RoB was high across all studies. CONCLUSION: For well-selected patients, POPRC with orthotopic neobladder may potentially be comparable to standard RC for oncological outcomes, whilst improving sexual and urinary function outcomes. However, in women undergoing RC, oncological and functional data regarding POPRC remain immature and require further evaluation in a prospective comparative setting.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.006 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".