Journal of Gastrointestinal Surgery

, Volume 11, Issue 8, pp 1008–1015

Hyperbaric Oxygen Therapy Reduces Severity and Improves Survival in Severe Acute Pancreatitis

  • Mehrdad Nikfarjam
  • Christine M. Cuthbertson
  • Caterina Malcontenti-Wilson
  • Vijayaragavan Muralidharan
  • Ian Millar
  • Christopher Christophi
Article

DOI: 10.1007/s11605-007-0175-2

Cite this article as:
Nikfarjam, M., Cuthbertson, C.M., Malcontenti-Wilson, C. et al. J Gastrointest Surg (2007) 11: 1008. doi:10.1007/s11605-007-0175-2

Abstract

Severe acute pancreatitis is characterized by pancreatic necrosis, resulting in local and systemic inflammation. Hyperbaric oxygen (HBO) therapy modulates inflammation, but has not been extensively studied in pancreatitis. This study investigates the effects of HBO in a rat model of severe acute pancreatitis. Sixty-four rats were induced with severe pancreatitis using 4% sodium taurocholate and randomized to HBO treatment or control. HBO was commenced 6 h after induction (100% oxygen at 2.5 atmospheres for 90 min) and continued every 12 h for a maximum of eight treatment episodes. Surviving animals were killed at 7 days. Severity of pancreatitis was graded macroscopically and microscopically. Lung edema was calculated using wet and dry lung weights. Macroscopic and microscopic severity scores (mean ± SE) of HBO-treated animals with pancreatitis (8.3 ± 0.7; 9.6 ± 0.4) were lower than those of controls (10.5 ± 0.5; 11.1 ± 0.4) (p = 0.02 and p = 0.03, respectively). The HBO-treated group had reduced pancreatic necrosis compared to controls (40 ± 4% vs. 54 ± 4%; p = 0.003). There was no difference in pulmonary edema between the groups. Median survival in the HBO-treatment group was 51 h, compared to 26 h in controls. Day-7 survival was significantly improved in the HBO-treated animals compared to controls (40% vs. 27%; p = 0.04). HBO therapy reduces overall severity, decreases the extent of necrosis, and improves survival in severe acute pancreatitis.

Keywords

Severe acute pancreatitis Necrosis Hyperbaric oxygen therapy 

Copyright information

© The Society for Surgery of the Alimentary Tract 2007

Authors and Affiliations

  • Mehrdad Nikfarjam
    • 1
  • Christine M. Cuthbertson
    • 1
  • Caterina Malcontenti-Wilson
    • 1
  • Vijayaragavan Muralidharan
    • 1
  • Ian Millar
    • 2
  • Christopher Christophi
    • 1
  1. 1.Department of Surgery, University of MelbourneAustin HospitalMelbourneAustralia
  2. 2.Hyperbaric UnitAlfred HospitalMelbourneAustralia

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