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A Clinical and Experimental Study of Colostomy Blood Flow and Healing After Closure

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Date 1986 Apr 1
PMID 2956348
Citations 4
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Abstract

Colostomy blood flow and healing have been studied in both man and rat. Laser Doppler velocimetry (LDV) was used to measure flow and showed a significant difference between colostomy blood flow measured at 1 week and at more than 8 weeks after fashioning (p less than 0.002). Hartmann colostomies were constructed in rats and closed at 3 or 6 weeks later. There was a correlation between distal colonic (stump) blood flow and anastomotic bursting pressures 3 days after closure in the 3-week group (r = 0.080; p less than 0.01). Colostomies closed at 6 weeks were significantly stronger than those closed at 3 weeks (p less than 0.02). Collagen concentration in proximal (stoma) colon was higher in the 6-week group compared with the 3-week group prior to anastomosis. There was also a fall in the proximal collagen after anastomosis in both 3- (p less than 0.01) and 6-week groups (p less than 0.01). Poor blood flow measured by LDV and colonic collagen concentration may predict poor healing after colostomy closure. LDV is a non-invasive technique with clinical application in this field.

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