Abstract：
OBJECTIVES:To perform a population-based analysis of the potential staging or prognostic value (or both) of lymph node dissection (LND) in patients without nodal metastases vs no LND. In several previous reports, LND in patients with upper tract urothelial carcinoma (UTUC) treated with nephroureterectomy (NU) was associated with better survival relative to no LND (pN(x)), even in the absence of pathologically confirmed nodal metastases (pN(0)). METHODS:Within the surveillance, epidemiology, and end results database, we identified 2824 patients treated with NU for UTUC between 1988 and 2004. CSM rates after NU were graphically explored using Kaplan-Meier plots. Univariable and multivariable Cox regression models tested the effect of N(0) vs N(x) stage on CSM, after adjusting for T stage, tumor grade, age, gender, primary tumor location, type, and year of surgery. RESULTS:The CSM-free survival rate at 5 years after NU was 81.2% and 77.8% respectively for pN(0) and pN(x) patients. In univariable analyses pN(x) vs pN(0) status was not associated with worse survival (HR: 1.19; P = .09). After adjustment for all covariates, pN(x) vs pN(0) status still failed to achieve independent predictor status (HR: 0.99; P = .9). CONCLUSIONS:We found no survival benefit related to the performance of LND in pN(0) patients, relative to pN(x) patients. Lack of standardized criteria for patients' selection for LND and for pathological lymph node specimen evaluation represents some of the explanation for the observed discrepancy between the current finding and previous findings.
journal_name
Urologyjournal_title
Urologyauthors
Lughezzani G,Jeldres C,Isbarn H,Shariat SF,Sun M,Pharand D,Widmer H,Arjane P,Graefen M,Montorsi F,Perrotte P,Karakiewicz PIdoi
10.1016/j.urology.2009.07.1296subject
Has Abstractpub_date
2010-01-01 00:00:00pages
118-24issue
1eissn
0090-4295issn
1527-9995pii
S0090-4295(09)02419-4journal_volume
75pub_type
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