title: Role of staging laparoscopy in gastric malignancies - our institutional experience.
abstract: OBJECTIVE
  To investigate the value of staging laparoscopy with laparoscopic ultrasound (LUS) and peritoneal lavage cytology in patients with newly-diagnosed gastric tumours in our department.
  
  
  METHODS
  Retrospective review of prospectively-collected data was conducted in all patients with newly-diagnosed gastric tumours on oesophagogastroduodenoscopy between December 2003 and July 2008. All the patients had a pre-treatment histological diagnosis and were discussed at the hospital multidisciplinary tumour board meeting for their definitive management. Computed tomography scan was performed in all patients as a part of standard preoperative staging work up. Staging laparoscopy was subsequently performed in selected patients and staging by both modalities was compared.
  
  
  RESULTS
  Twenty seven patients were included. Majority of patients had cardio-oesophageal junction adenocarcinoma. Thirteen patients (48%) were upstaged following staging laparoscopy and one patient was downstaged (3.7%). None of the patients had procedure-related complications. None of the patients with metastasis detected at laparoscopy underwent laparotomy. Gastrectomy after staging laparoscopy was performed in 13 patients (9 R0 resections, 3 R1 resections and 1 R2 resection). Only one patient did not have gastrectomy at laparotomy because of extensive local invasion. Three patients were subjected to neoadjuvant therapy following laparoscopy but only one patient subsequently underwent gastrectomy.
  
  
  CONCLUSIONS
  In this small series reflecting our institutional experience, staging laparoscopy appears to be safe and more accurate in detecting peritoneal and omental metastases as compared to conventional imaging. Peritoneal cytology provided additional prognostic information although there appeared to be a high false negative rate.
authors.affiliation: Vishal G Shelat, Juin Fong Thong, Melanie Seah, Khong Hee Lim, Department of Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore.
authors.forename: Vishal G
authors.initials: VG
authors.lastname: Shelat
authors.forename: Juin Fong
authors.initials: JF
authors.lastname: Thong
authors.forename: Melanie
authors.initials: M
authors.lastname: Seah
authors.forename: Khong Hee
authors.initials: KH
authors.lastname: Lim
keywords: Gastric carcinoma; Laparoscopic ultrasound; Laparoscopy; Peritoneal lavage cytology; Staging