title: The impact of abdominal shape index of patients on laparoscopy-assisted distal gastrectomy for early gastric cancer.
abstract: OBJECTIVE
  The aim of this study was to explore the effects of the abdominal shape index on gastric cancer patients' short-term surgical outcomes of laparoscopy-assisted distal gastrectomy (LADG) in both genders.
  
  
  METHODS
  This retrospective study included 231 consecutive patients with early gastric cancer who underwent LADG with Billroth I anastomosis between 1998 and 2009. The abdominal shape index of patients was calculated using preoperative abdominal computed tomography scans and the Fat Scan software program.
  
  
  RESULTS
  In male patients, the duration of surgery was longer in patients with a body mass index ≥25 kg/m(2) (P = 0.016), with the anterior to posterior diameter ≥200 mm (P < 0.0001), with the transverse diameter (TD) ≥300 mm (P = 0.030), with the waist ≥85 cm (P = 0.039), and with the visceral fat area (VFA) ≥100 cm(2) (P = 0.029). The intraoperative blood loss was higher in the large TD group (P = 0.049), in the high waist group (P = 0.006), and in the large VFA group (P = 0.007). In female patients, the correlations between these surgical outcomes and this abdominal shape index were not found. No significant relationships between each body shape index and the number of lymph nodes retrieved were found in either gender. Postoperative complications were not associated with the fat volume and abdominal shape index.
  
  
  CONCLUSIONS
  Accumulation of fat did not affect short-term surgical outcomes except for the duration of surgery and intraoperative blood loss in male patients.
authors: Second Department of Surgery, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama 641-8510, Japan.
authors: Toshiyasu
authors: T
authors: Ojima
authors: Makoto
authors: M
authors: Iwahashi
authors: Mikihito
authors: M
authors: Nakamori
authors: Masaki
authors: M
authors: Nakamura
authors: Katsunari
authors: K
authors: Takifuji
authors: Masahiro
authors: M
authors: Katsuda
authors: Takeshi
authors: T
authors: Iida
authors: Toshiaki
authors: T
authors: Tsuji
authors: Keiji
authors: K
authors: Hayata
authors: Hiroki
authors: H
authors: Yamaue
mesh_terms: D050153:Abdominal Fat / Q000000981:diagnostic imaging; D000230:Adenocarcinoma / Q000453:epidemiology / Q000473:pathology / Q000601:surgery*; D049628:Body Size; D005260:Female; D005743:Gastrectomy / Q000379:methods*; D006801:Humans; D010535:Laparoscopy; D008197:Lymph Node Excision; D008297:Male; D015999:Multivariate Analysis; D009361:Neoplasm Invasiveness; D009765:Obesity / Q000453:epidemiology; D012189:Retrospective Studies; D012307:Risk Factors; D013274:Stomach Neoplasms / Q000453:epidemiology / Q000473:pathology / Q000601:surgery*; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome