title: Clinical impact of endoscopic ultrasound-guided fine needle aspiration biopsy in patients with upper gastrointestinal tract malignancies. A prospective study.
abstract: OBJECTIVE
  Several studies have evaluated the accuracy of endoscopic ultrasound-guided fine-needle aspiration biopsy (EUS-FNAB) in the upper gastrointestinal tract, but so far no studies have specifically evaluated the clinical impact of EUS-FNAB in upper gastrointestinal tract cancer patients. In this consecutive and prospective study, EUS-FNAB was only performed if a positive malignant finding would change the therapeutic strategy.
  
  
  METHODS
  Between 1997 and 1999, 307 consecutive patients were referred for EUS with a diagnosis or strong suspicion of esophageal, gastric or pancreatic cancer; 274 patients were potential candidates for surgical treatment and had EUS. According to predefined impact criteria, 27% (75/274) of the patients had EUS-FNAB for staging or diagnostic reasons.
  
  
  RESULTS
  The overall clinical impact of EUS-FNAB was 13%, 14%, and 30% in esophageal, gastric, and pancreatic cancer, respectively. The staging-related clinical impact was similar for all three types of cancer (11-12.5%), whereas the diagnosis-related impact was highest in pancreatic cancer patients (86%). EUS-FNAB was inadequate in 13% and gave false-negative results in 5%. The overall sensitivity, specificity and accuracy for EUS-FNAB were 80%, 78% and 80%, respectively. No complications related to the biopsy procedure were seen.
  
  
  CONCLUSIONS
  If EUS-FNAB was performed only in cases where a positive malignant result would change patient management, then approximately one out of four patients with upper gastrointestinal tract cancer would require a biopsy. With this approach the actual clinical impact of EUS-FNAB ranged from 13% in esophageal cancer to 30% in pancreatic cancer. EUS-FNAB plays a limited, but very important clinical role in the assessment of upper gastrointestinal tract cancer.
authors: Department of Surgical Gastroenterology, Odense University Hospital, Denmark. m.bau@dadlnet.dk
authors: M B
authors: MB
authors: Mortensen
authors: T
authors: T
authors: Pless
authors: J
authors: J
authors: Durup
authors: A P
authors: AP
authors: Ainsworth
authors: G J
authors: GJ
authors: Plagborg
authors: C
authors: C
authors: Hovendal
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle / Q000379:methods*; D019160:Endosonography; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D011446:Prospective Studies; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*