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Effect of Porcine Small Intestinal Submucosa on Acute Full‐Thickness Wounds in Dogs
Author(s) -
SCHALLBERGER SANDRA P.,
STANLEY BRYDEN J.,
HAUPTMAN JOE G.,
STEFICEK BARBARA A.
Publication year - 2008
Publication title -
veterinary surgery
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 79
eISSN - 1532-950X
pISSN - 0161-3499
DOI - 10.1111/j.1532-950x.2008.00398.x
Subject(s) - medicine , granulation tissue , wound healing , submucosa , surgery , contraction (grammar) , inflammation , histology , pathology
Objective— To evaluate the effects of porcine small intestinal submucosa (PSIS) on the healing of full‐thickness wounds in dogs, specifically the appearance of granulation tissue, percent epithelialization and contraction, histologic variables of inflammation and repair, and aerobic culture results. Study Design— Prospective, controlled, experimental study. Animals— Purpose‐bred, female dogs (n=10). Methods— Wounds were created bilaterally on the trunk; 1 side as a control and 1 treated with PSIS. First appearance of granulation tissue was recorded. Total wound area, open wound area, and epithelialized area were measured at 21 time points—wound contraction and percent epithelialization were calculated. Aerobic cultures were taken at 4 time points and wound biopsies at 8. Histologic features were graded into an Acute Inflammation Score and Repair Score. Results— There was no difference in first appearance of granulation tissue between PSIS‐treated and control wounds. Wound contraction was significantly faster in control wounds as was percent epithelialization after day 21. Histologic Acute Inflammation Scores were significantly higher in PSIS‐treated wounds compared with control wounds on days 2 and 6. There were no differences in Histologic Repair Scores between PSIS‐treated and control wounds or in aerobic culture results. Conclusion— Wounds treated with PSIS contract more slowly, epithelialize less, and have more pronounced acute inflammation after implantation than control wounds. Clinical Relevance— Acute, full‐thickness wounds in dogs do not benefit from treatment with PSIS.