title: Clinical significance of tissue blood flow during esophagectomy by laser Doppler flowmetry.
abstract: OBJECTIVE
  We sought to investigate the effect of tissue blood flow on the incidence of anastomotic leakage during esophagectomy.
  
  
  METHODS
  Reconstruction was done with a gastric tube, and all cases involved cervical anastomosis. Tissue blood flow of 43 patients was measured with a laser Doppler flowmeter before emplacement and after anastomosis during surgical intervention. The reconstruction route and tissue blood flow before emplacement and that after anastomosis were analyzed as possible factors influencing anastomotic leakage.
  
  
  RESULTS
  Tissue blood flow after anastomosis with leakage was 9.1 +/- 2.0 mL/min per 100 g, and that without leakage was 13.7 +/- 2.9 mL/min per 100 g. Tissue blood flow with leakage was significantly lower than that without leakage (P <.01, unpaired t test). Twenty-one patients had tissue blood flow after anastomosis of greater than 13 mL/min per 100 g, and none of them had leakage, whereas 5 patients had blood flow of less than 10 mL/min per 100 g, and all 5 had leakage.
  
  
  CONCLUSIONS
  Tissue blood flow can be an important and useful indicator of the presence of current anastomotic leakage. Low tissue blood flow after anastomosis may mediate for appropriate surgical or pharmacologic interventions to detect, localize, and counteract leakage.
authors.affiliation: First Department of Surgery, Teikyo University School of Medicine, Tokyo, Japan. yikeda@med.teikyo-u.ac.jp
authors.forename: Y
authors.initials: Y
authors.lastname: Ikeda
authors.forename: M
authors.initials: M
authors.lastname: Niimi
authors.forename: S
authors.initials: S
authors.lastname: Kan
authors.forename: T
authors.initials: T
authors.lastname: Shatari
authors.forename: H
authors.initials: H
authors.lastname: Takami
authors.forename: S
authors.initials: S
authors.lastname: Kodaira
mesh_terms: D000714:Anastomosis, Surgical; D004938:Esophageal Neoplasms / Q000601:surgery; D016629:Esophagectomy; D004947:Esophagus / Q000098:blood supply* / Q000601:surgery; D005260:Female; D006801:Humans; D007431:Intraoperative Complications / Q000175:diagnosis*; D017078:Laser-Doppler Flowmetry; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative; D019651:Plastic Surgery Procedures