A feasibility study of transurethral resection followed by radiotherapy combined with concurrent twice-weekly gemcitabine in the treatment of invasive bladder carcinoma
Bibliographic record
Abstract
Introduction and Aim: Radical cystectomy is the traditional treatment of cancer bladder; however, bladder preservation in selective patients is beneficial. To evaluate the efficacy of transurethral resection plus chemo-radiation in achieving bladder preservation, using conformal radiotherapy and twice weekly Gemcitabine. Patients and Methods: Thirty seven patients with good performance status, and maximum trans-urethral resection received 46GY /23 fractions with twice weekly Gemcitabine 30mg/m 2 . Evaluation was done after 2 weeks by cystoscopy and biopsy from the tumor bed. Patients who had complete response (CR) subjected for phase II 20 GY/10 fractions /2 weeks with twice weekly Gemcitabine 30 mg/m 2 . However, patients who had incomplete response subjected for radical cystectomy. Results: Thirty two (86.4%) patients had CR. The treatment schedule was tolerable and was associated with moderate toxicity that was easily treated. Six patients developed G3 toxicity that required treatment interruption until improvement. After 2 years of follow up, 29 patients achieved good local control with 2 years local recurrence free survival was 79%. The 2 years overall survival and bladder intact survival was 70% and 69% respectively. Conclusions: Tri-modality bladder-sparing approach consists of transurethral resection, chemotherapy twice weekly Gemcitabine and radiotherapy is well tolerated, with high rate of bladder preservation. This approach may be considered as a reasonable alternative to cystectomy in the proper selected patients.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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".