title: Clinical significance of lymph node dissection in patients with muscle-invasive upper urinary tract transitional cell carcinoma treated with nephroureterectomy.
abstract: We investigated the value of lymph node dissection in patients with cN0 muscle-invasive transitional cell carcinoma of the upper urinary tract (UUT-TCC). Medical records of 152 patients with cN0 muscle-invasive UUT-TCC, who underwent nephroureterectomy between 1986 and 2005, were reviewed. Sixty-three patients (41.4%) underwent lymph node dissection. The median number of lymph nodes harvested was 6 (range, 1 to 35), and from these, lymph node involvement was confirmed in 9 patients (14.3%). Locoregional recurrence (LR) and disease-recurrence (DR) occurred in 29 patients and 63 patients, respectively. Fifty-five patients (36.2%) had died of cancer at the last follow-up. The number of lymph nodes harvested was associated with the reduction of LR (chi(2)(trend)=6.755, P=0.009), but was not associated with DR (chi(2)(trend)=1.558, P=0.212). In the survival analysis, N stage (P=0.0251) and lymph node dissection (P=0.0073) had significant influence on LR, but not on DR or disease-specific survival. However, the number of lymph nodes harvested did not affect LR-free, DR-free, or disease-specific survival. We conclude that lymph node dissection may improve the control of locoregional cancer, as well as staging accuracy, in cN0 muscle-invasive UUT-TCC, but that it does not clearly influence survival.
authors: Department of Urology, Yonsei University College of Medicine, Seoul, Korea.
authors: Kang Su
authors: KS
authors: Cho
authors: Hyun Min
authors: HM
authors: Choi
authors: Kyochul
authors: K
authors: Koo
authors: Sung Jin
authors: SJ
authors: Park
authors: Koon Ho
authors: KH
authors: Rha
authors: Young Deuk
authors: YD
authors: Choi
authors: Byung Ha
authors: BH
authors: Chung
authors: Nam Hoon
authors: NH
authors: Cho
authors: Seung Choul
authors: SC
authors: Yang
authors: Sung Joon
authors: SJ
authors: Hong
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002295:Carcinoma, Transitional Cell / Q000401:mortality / Q000601:surgery* / Q000628:therapy; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000401:mortality / Q000601:surgery* / Q000628:therapy; D008197:Lymph Node Excision; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D009392:Nephrectomy; D012008:Recurrence; D012189:Retrospective Studies; D016019:Survival Analysis; D014516:Ureteral Neoplasms / Q000401:mortality / Q000601:surgery* / Q000628:therapy