title: Effect of Endo-GIA vascular staple size on laparoscopic vessel sealing in a porcine model.
abstract: BACKGROUND
  Two sizes of endoscopic gastrointestinal anastomosis (Endo-GIA) staples are currently available for vascular control. The purpose of this study was to compare the Endo-GIA 30-2.0 mm with the Endo-GIA 30-2.5 mm vascular staple.
  
  
  METHODS
  The renal blood vessels, aorta, and vena cava were divided laparoscopically using the Endo-GIA 30-2.0 and 30-2.5 mm in four pigs, respectively. The arterial and venous segments were harvested en bloc for ex vivo burst pressure studies.
  
  
  RESULTS
  Both 2.0-mm and 2.5-mm staples achieved vessel sealing at supraphysiologic mean burst pressures (> or =310 mmHg). There were no statistical differences between mean burst pressures of vessels stapled by 2.0-mm compared to 2.5-mm staples. Both staples sealed arteries up to 17 mm and veins up to 22 mm in diameter.
  
  
  CONCLUSIONS
  Endo-GIA 30-2.0 mm and 30-2.5 mm vascular staples are equivalent in sealing vessels at supraphysiologic mean burst pressures.
authors.affiliation: Department of Urology, Long Island Jewish Medical Center, 270-05 76th Avenue, New Hyde Park, NY 11040-1496, USA. assaad_e@hotmail.com
authors.forename: A
authors.initials: A
authors.lastname: El-Hakim
authors.forename: Y
authors.initials: Y
authors.lastname: Cai
authors.forename: R
authors.initials: R
authors.lastname: Marcovich
authors.forename: P
authors.initials: P
authors.lastname: Pinto
authors.forename: B R
authors.initials: BR
authors.lastname: Lee
mesh_terms: D000714:Anastomosis, Surgical; D000818:Animals; D001011:Aorta / Q000601:surgery; D004396:Coloring Agents; D004867:Equipment Design; D005260:Female; D006488:Hemostasis, Surgical / Q000295:instrumentation*; D007203:Indigo Carmine; D010535:Laparoscopy; D011312:Pressure; D012077:Renal Artery / Q000601:surgery; D012082:Renal Veins / Q000601:surgery; D013537:Sutures; D013552:Swine; D014656:Vascular Surgical Procedures / Q000295:instrumentation*; D014684:Venae Cavae / Q000601:surgery
chemical_list: D004396:Coloring Agents; D007203:Indigo Carmine