[Morphometric characteristics of the hemomicrocirculatory bed vessels in rat colon in large bowel obstruction and after its resolution].

The results are presented that describe the experimental study of colonic hemomicrocirculatory bed (HMCB) in intact rats, in animals 6 days after large bowel obstruction development that was modeled using the device created by the authors, and 1-15 days after its resolution. The most significant changes were observed in the capillaries and HMCB venular portion--capillary diameter was increased by 60-100%, while that of venules--by 73% as compared to those in control group. The degree of changes depended on the distance from the extraorgan bowel compression site. The dynamics of the normalization of morphometric parameters after colon obstruction resolution was demonstrated. It was found that the average arteriolar and venular diameters reached the initial level by day 5, while that of the capillaries by day 7 after colon obstruction resolution.