title: Is a bilateral modified radical neck dissection beneficial for patients with papillary thyroid cancer?
abstract: OBJECTIVE
  We previously reported a poor prognosis in papillary thyroid carcinoma patients with recurrence in the contralateral cervical lymph nodes after thyroidectomy and ipsilateral modified radical neck dissection (MRND) with a curative intent. The aim of this study was to investigate whether bilateral MRND improved prognosis in patients at risk for contralateral nodal recurrence.
  
  
  METHODS
  We retrospectively reviewed the cases of 86 patients with contralateral nodal metastasis who underwent a thyroidectomy with bilateral MRND (group 1) and the cases of 32 patients who suffered contralateral nodal recurrence after a thyroidectomy with ipsilateral MRND (group 2).
  
  
  RESULTS
  Although tumor progression was considered similar in patients from groups 1 and 2, group 1 developed fewer distant metastases than group 2 (6.8% vs 31.1%), thus resulting in a lower cancer death rate (5.8% vs 28.1%). Group 1 had a better 10-year survival rate than of group 2 (97.1% vs 83.7%).
  
  
  CONCLUSIONS
  Bilateral MRND during initial surgical management is thus considered to improve the prognosis of some papillary carcinoma patients at risk for recurrence in the contralateral cervical lymph nodes.
authors.affiliation: Department of Surgery and Oncology, Graduate School of Medical Sciences, Faculty of Medicine, Kyushu University, 3-1-1 Maidashi, Higashiku, Fukuoka 812-8582, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Ohshima
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Yamashita
authors.forename: Shiro
authors.initials: S
authors.lastname: Noguchi
authors.forename: Shinya
authors.initials: S
authors.lastname: Uchino
authors.forename: Shin
authors.initials: S
authors.lastname: Watanabe
authors.forename: Eisuke
authors.initials: E
authors.lastname: Koike
authors.forename: Hiroto
authors.initials: H
authors.lastname: Yamashita
authors.forename: Syoji
authors.initials: S
authors.lastname: Kuroki
authors.forename: Masao
authors.initials: M
authors.lastname: Tanaka
mesh_terms: D000328:Adult; D002291:Carcinoma, Papillary / Q000401:mortality* / Q000473:pathology / Q000517:prevention & control / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D037981:Neck Dissection / Q000379:methods*; D009364:Neoplasm Recurrence, Local / Q000401:mortality* / Q000517:prevention & control*; D011379:Prognosis; D012189:Retrospective Studies; D016019:Survival Analysis; D013964:Thyroid Neoplasms / Q000401:mortality* / Q000473:pathology / Q000517:prevention & control / Q000601:surgery*; D013965:Thyroidectomy