title: Efficacy of Oxidized Regenerated Cellulose, SurgiGuard®, in Porcine Surgery.
abstract: OBJECTIVE
  Adequate hemostasis is important for postoperative outcomes of abdominal surgery. This study evaluated the hemostatic effects and accompanying histopathological changes of a novel oxidized regenerated cellulose, SurgiGuard®, during abdominal surgery.
  
  
  METHODS
  Ten pigs underwent wedge resection of the spleen (1×1 cm) and liver (1.5×1.5 cm). The resected surface was covered with Surgicel® fabric or fibril type (Group A) or SurgiGuard® fabric or fibril type (Group B). Surgicel® and SurgiGuard® were randomized for attachment to the resected surface by fabric type (n=5) or fibril type (n=5). Blood loss was measured 5, 7, and 9 min after resection. Pigs were necropsied 6 weeks postoperatively to evaluate gross and histopathological changes.
  
  
  RESULTS
  There was no significant difference in total blood loss between groups [spleen fabric: Group A vs. Group B, 4.38 g (2.74-6.43) vs. 3.41 g (2.46-4.65), p=0.436; spleen fibril: Group A vs. Group B, 3.44 g (2.82-6.07) vs. 3.60 g (2.03-6.09), p=0.971; liver fabric: Group A vs. Group B, 4.51 g (2.67-10.61) vs. 6.93 g (3.09-9.95), p=0.796; liver fibril: Group A vs. Group B, 3.32 g (2.50-8.78) vs. 3.70 g (2.32-5.84), p=0.971]. Histopathological analysis revealed no significant difference in toxicities related to Surgicel® or SurgiGuard® [inflammation, fibrosis, foreign bodies, and hemorrhage (spleen: p=0.333, 0.127, 0.751, and 1.000; liver: p=0.155, 0.751, 1.000, and 1.000, respectively)].
  
  
  CONCLUSIONS
  SurgiGuard® is as effective and non-toxic as Surgicel® in achieving hemostasis after porcine abdominal surgery.
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Sung Hyun
authors.initials: SH
authors.lastname: Kim
authors.affiliation: Department of Pathology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Se Hoon
authors.initials: SH
authors.lastname: Kim
authors.affiliation: Department of Quality Assurance, Samyang Biopharmaceuticals Corporation, Daejeon, Korea.
authors.forename: Hye Sung
authors.initials: HS
authors.lastname: Yoon
authors.affiliation: Department of Research and Development, Medical Device Program, Samyang Biopharmaceuticals Corporation, Daejeon, Korea.
authors.forename: Hyun Kyoon
authors.initials: HK
authors.lastname: Kim
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea. kskim88@yuhs.ac.
authors.forename: Kyung Sik
authors.initials: KS
authors.lastname: Kim
mesh_terms: D000818:Animals; D016063:Blood Loss, Surgical / Q000706:statistics & numerical data; D002483:Cellulose, Oxidized / Q000627:therapeutic use*; D006488:Hemostasis, Surgical / Q000379:methods*; D006490:Hemostatics / Q000627:therapeutic use*; D008099:Liver / Q000601:surgery*; D011897:Random Allocation; D013154:Spleen / Q000601:surgery*; D013552:Swine
chemical_list: D002483:Cellulose, Oxidized; D006490:Hemostatics; C013695:Surgicel
keywords: Animal model; blood loss; hemostatics; histopathology; oxidized regenerated cellulose