title: Selective dissection of levels II-III with intraoperative control of the upper and middle jugular nodes: a therapeutic option for the N0 neck.
abstract: BACKGROUND
  Selective neck dissections are accepted elective treatment in N0 patients. We present the results of a dissection of levels II to III and intraoperative pathologic control of a sample of subdigastric and supraomohyoid nodes in a group of patients with laryngeal carcinoma. When intraoperative analysis was positive, dissection of levels IV and V was completed.
  
  
  METHODS
  Between 1991 and 1997, 145 neck dissections with intraoperative control were carried out in 79 patients with laryngeal carcinomas. Postoperative radiotherapy was used in 49 patients.
  
  
  RESULTS
  There were occult metastases in 29 neck dissections (20%). In 22 cases (15%), tumor was found in the nodes sent to intraoperative pathologic study, and dissection of levels IV and V was completed. In 7 additional cases tumor was found in the postoperative study. The sensitivity of the use of frozen sections in the detection of occult metastases was 76%. In no case were positive nodes found at level V. There was no regional relapse in any of the 145 selective neck dissections.
  
  
  CONCLUSIONS
  The lateral selective neck dissection is an effective method in the elective treatment of the neck of N0 laryngeal carcinoma patients. Dissection of level IV can be spared when intraoperative biopsy specimens of a sample of the subdigastric and supraomohyoid nodes are negative. According to our results, at present we do not consider it necessary to dissect level V in selective neck dissections in patients with laryngeal carcinoma.
authors.affiliation: Department of Otolaryngology, Hospital de la Santa Creu i Sant Pau, Avda. San Antoni Ma Claret, 167, Barcelona, Spain 08025. xleon@hsp.santpau.es
authors.forename: X
authors.initials: X
authors.lastname: León
authors.forename: M
authors.initials: M
authors.lastname: Quer
authors.forename: C
authors.initials: C
authors.lastname: Orús
authors.forename: F J
authors.initials: FJ
authors.lastname: Sancho
authors.forename: S
authors.initials: S
authors.lastname: Bagué
authors.forename: J
authors.initials: J
authors.lastname: Burgués
mesh_terms: D001706:Biopsy; D002294:Carcinoma, Squamous Cell / Q000473:pathology / Q000532:radiotherapy / Q000556:secondary / Q000601:surgery*; D006801:Humans; D007822:Laryngeal Neoplasms / Q000473:pathology / Q000532:radiotherapy / Q000601:surgery*; D008197:Lymph Node Excision / Q000379:methods*; D008198:Lymph Nodes / Q000473:pathology; D008207:Lymphatic Metastasis; D009333:Neck / Q000601:surgery*; D009364:Neoplasm Recurrence, Local / Q000517:prevention & control; D009367:Neoplasm Staging; D018714:Radiotherapy, Adjuvant; D012189:Retrospective Studies; D012680:Sensitivity and Specificity