INTRODUCTION: The objective of this study was to evaluate the performance of different tumor diameters for identifying ≥ pT2 upper tract urothelial carcinoma (UTUC) at radical nephroureterectomy. PATIENTS AND METHODS: This was a multi-institutional retrospective study that included 932 patients who underwent radical nephroureterectomy for nonmetastatic UTUC between 2000 and 2016. Tumor sizes were pathologically assessed and categorized into 4 groups: ≤ 1 cm, 1.1 to 2 cm, 2.1 to 3 cm, and > 3 cm. We performed logistic regression and decision-curve analyses. RESULTS: Overall, 45 (4.8%) patients had a tumor size ≤ 1 cm, 141 (15.1%) between 1.1 and 2 cm, 247 (26.5%) between 2.1 and 3 cm, and 499 (53.5%) > 3 cm. In preoperative predictive models that were adjusted for the effects of standard clinicopathologic features, tumor diameters > 2 cm (odds ratio, 2.38; 95% confidence interval, 1.70-3.32; P < .001) and > 3 cm (odds ratio, 1.81; 95% confidence interval, 1.38-2.38; P < .001) were independently associated with ≥ pT2 pathologic staging. The addition of the > 2-cm diameter cutoff improved the area under the curve of the model from 58.8% to 63.0%. Decision-curve analyses demonstrated a clinical net benefit of 0.09 and a net reduction of 8 per 100 patients. CONCLUSION: The 2-cm cutoff appears to be most useful in identifying patients at risk of harboring ≥ pT2 UTUC. This confirms the current European Association of Urology guideline's risk stratification. Tumor size alone is not sufficient for optimal risk stratification, rather a constellation of features is needed to select the best candidate for kidney-sparing surgery.
PURPOSE: We compared the oncologic outcomes of radical nephroureterectomy, distal ureterectomy and endoscopic surgery for elective treatment of clinically organ confined upper tract urothelial carcinoma of the distal ureter. MATERIALS AND METHODS: From a multi-institutional collaborative database we identified 304 patients with unifocal, clinically organ confined urothelial carcinoma of the distal ureter and bilateral functional kidneys. Rates of overall, cancer specific, local recurrence-free and intravesical recurrence-free survival according to surgery type were compared using Kaplan-Meier statistics. Univariable and multivariable Cox regression analyses were performed to assess the adjusted outcomes of radical nephroureterectomy, distal ureterectomy and endoscopic surgery. RESULTS: Overall 128 (42.1%), 134 (44.1%) and 42 patients (13.8%) were treated with radical nephroureterectomy, distal ureterectomy and endoscopic surgery, respectively. Although rates of overall, cancer specific and intravesical recurrence-free survival were equivalent among the 3 surgical procedures, 5-year local recurrence-free survival was lower for endoscopic surgery (35.7%) than for nephroureterectomy (95.0%, p <0.001) or ureterectomy (85.5%, p = 0.01) with no significant difference between nephroureterectomy and distal ureterectomy. On multivariable analyses only endoscopic surgery was an independent predictor of decreased local recurrence-free survival compared to nephroureterectomy (HR 1.27, p = 0.001) or distal ureterectomy (HR 1.14, p = 0.01). Distal ureterectomy and endoscopic surgery did not significantly correlate to cancer specific or intravesical recurrence-free survival. However, when adjustment was made for ASA(®) (American Society of Anesthesiologists(®)) score, distal ureterectomy (HR 0.80, p = 0.01) and endoscopic surgery (HR 0.84, p = 0.02) were independent predictors of increased overall survival, although no significant difference was found between them. CONCLUSIONS: Because of better oncologic outcomes, distal ureterectomy could be considered the elective first line treatment of clinically organ confined urothelial carcinoma of the distal ureter.
- MeSH
- časové faktory MeSH
- elektivní chirurgické výkony metody MeSH
- incidence MeSH
- karcinom z přechodných buněk patologie chirurgie MeSH
- laparoskopie metody MeSH
- lidé MeSH
- lokální recidiva nádoru epidemiologie MeSH
- míra přežití trendy MeSH
- nádory močovodu patologie chirurgie MeSH
- následné studie MeSH
- nefrektomie metody MeSH
- pooperační komplikace epidemiologie MeSH
- přežití bez známek nemoci MeSH
- prognóza MeSH
- retrospektivní studie MeSH
- ureter chirurgie MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- multicentrická studie MeSH
- Geografické názvy
- Evropa epidemiologie MeSH
