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Burst abdomen. Local synthesis of nucleic acids, glycosaminoglycans, proteins and collagen in wounds

Renvall, S.; Grönroos, I.; Laato, M.

Annales Chirurgiae et Gynaecologiae 90 Suppl 215: 33-37

2001

ISSN/ISBN: 0355-9521
PMID: 12041926
Document Number: 528258
Abdominal wound dehiscence and evisceration is a surgical emergency. The general phenomena leading to this complication are for the most part known. However, the local biochemical events of different layers of the abdominal wall in wound dehiscence have not been studied. The purpose of the present study was to analyze the synthesis and contents of DNA, RNA, proteins and collagen in fascial, subcutaneous and skin layers in burst abdomen. The material consisted of 10 controls and 12 patients divided into two groups. Group A consisted of 7 patients with acute free or covered perforation of the gastrointestinal tract and group B consisted of 5 critically ill patients at admission. In group A, higher amounts of specific isotopes were accumulated into DNA, proteins and collagen in fascial and subcutaneous wound layers than in those of the controls. However, in critically ill patients the corresponding accumulation was lower than in controls. On the other hand, in both group A and B, the content of hydroxyproline (collagen) was below the control level in fascial and subcutaneous layers of the abdominal wound. The results indicate that the degradation of collagen exceeds the synthesis of collagen in wounds of patients with burst abdomen. Probably this increased degradation of collagen in wounds partly explains the higher wound disruption rate in these patients.

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