title: [Assessment of internal jugular vein flow and patency with power duplex Doppler ultrasonography after functional neck dissection].
abstract: OBJECTIVE
  The purpose of this study was to assess the patency of the internal jugular vein after functional neck dissection.
  
  
  METHODS
  Twenty-five patients (6 females, 19 males; mean age 53.9 years; range 30 to 71 years) who were operated on because of larynx, hypopharynx and intraoral cavity tumors in the Ear, Nose and Throat Clinic of Haseki Training and Research Hospital between January 2001 and March 2003 were included in the study. Internal jugular veins were evaluated after 42 functional neck dissections. By means of power duplex Doppler ultrasonography, the jugular blood flow, presence or absence of a thrombus, diameter of the vein, velocity of the blood flow were evaluated.
  
  
  RESULTS
  In our study the internal jugular vein patency rate was found to be 95.2%, and thrombosis was detected only in two patients. Blood flow velocity in patients with thrombus was found to be significantly lower than that observed in patients without thrombus (p<0.05).
  
  
  CONCLUSIONS
  It was observed that blood flow of the internal jugular vein was ensured in most patients after functional neck dissection.
authors.affiliation: Department of Otolaryngology, Haseki Training and Research Hospital, Istanbul, Turkey.
authors.forename: Bayram
authors.initials: B
authors.lastname: Veyseller
authors.forename: Fadlullah
authors.initials: F
authors.lastname: Aksoy
authors.forename: Murat
authors.initials: M
authors.lastname: Açikalin
authors.forename: Yavuz Selim
authors.initials: YS
authors.lastname: Yildirim
authors.forename: Fatma Gülüm
authors.initials: FG
authors.lastname: Ivgin Bayraktar
authors.forename: Hasan
authors.initials: H
authors.lastname: Demirhan
mesh_terms: D000328:Adult; D000368:Aged; D001783:Blood Flow Velocity; D005260:Female; D006801:Humans; D007012:Hypopharyngeal Neoplasms / Q000601:surgery; D007601:Jugular Veins / Q000000981:diagnostic imaging / Q000473:pathology / Q000502:physiology*; D007822:Laryngeal Neoplasms / Q000601:surgery; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000601:surgery; D013927:Thrombosis / Q000473:pathology; D014463:Ultrasonography; D014654:Vascular Patency / Q000502:physiology*