title: D3 Lymph Node Dissection in Right Hemicolectomy with a No-touch Isolation Technique in Patients With Colon Cancer.
abstract: BACKGROUND
  The role of lymph node dissection in the management of right-sided colon cancer remains controversial.
  
  
  OBJECTIVE
  The aim of this study was to investigate the surgical treatment of curable right-sided colon cancer by using D3 lymphadenectomy with a no-touch isolation technique and to determine the extent of lymph node dissection optimal for the prognosis of right-sided colon cancer.
  
  
  METHODS
  This research is a retrospective cohort study from a prospectively collected database.
  
  
  METHODS
  The investigation took place in a specialized colorectal surgery department.
  
  
  METHODS
  : Data on 370 consecutive patients who underwent D3 lymph node dissection for right-sided colon cancer with a no-touch isolation technique were identified.
  
  
  METHODS
  The survival of patients with involvement of main nodes at the roots of colonic arterial trunks along superior mesenteric vessels through intermediate nodes in the right mesocolon was determined.
  
  
  RESULTS
  The 5-year overall survival of patients with stage I (n = 73, 19.7%), II (n = 155, 41.9%), and III (n = 142, 38.4%) cancer were 94.5%, 87.6%, and 79.2%. The 5-year disease-specific survival of patients with stages I, II, and III cancer were 100.0%, 94.5%, and 85.0%. Eleven patients (3.0%) had metastatic involvement of main lymph nodes, whereas 49 (13.2%) had metastases to intermediate lymph nodes. The 5-year overall survival and disease-specific survival of patients with metastases to main lymph nodes were 36.4% for both, and 5-year overall survival and disease-specific survival of patients with metastases to intermediate lymph nodes were 77.6% and 83.5%.
  
  
  CONCLUSIONS
  This study was limited by its nonrandomized retrospective design.
  
  
  CONCLUSIONS
  D3 lymphadenectomy with a no-touch isolation technique allows curative resection and long-term survival in a cohort of patients with cancer of the right colon.
authors.affiliation: Department of Gastroenterological Surgery, Aichi Cancer Center, Nagoya, Japan. ykanemit@ncc.go.jp
authors.forename: Yukihide
authors.initials: Y
authors.lastname: Kanemitsu
authors.forename: Koji
authors.initials: K
authors.lastname: Komori
authors.forename: Kenya
authors.initials: K
authors.lastname: Kimura
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Kato
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003110:Colonic Neoplasms / Q000175:diagnosis / Q000556:secondary / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007564:Japan / Q000453:epidemiology; D010535:Laparoscopy / Q000379:methods*; D008197:Lymph Node Excision / Q000379:methods* / Q000401:mortality; D008198:Lymph Nodes / Q000473:pathology / Q000601:surgery; D008207:Lymphatic Metastasis; D008297:Male; D008643:Mesentery; D008875:Middle Aged; D009367:Neoplasm Staging; D016737:Proctocolectomy, Restorative / Q000379:methods* / Q000401:mortality; D012189:Retrospective Studies; D015996:Survival Rate / Q000639:trends