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  • Title: Intestinal anastomoses.
    Author: Genzini T, D'Albuquerque LA, de Miranda MP, Scafuri AG, de Oliveira e Silva A.
    Journal: Rev Paul Med; 1992; 110(4):183-92. PubMed ID: 1341010.
    Abstract:
    Anastomotic dehiscence remains the main cause of morbidity and mortality of intestinal resections, mainly the colorectal (77, 95, 110). Very often in the literature the words dehiscence and fistula are misused for the same meaning. Nevertheless, attention must be paid to the fact that these two situations may be distinct. Dehiscence is defined as the failure of healing of the anastomoses, while fistula is the leakage of the intestinal content into the peritoneal cavity. So, the evidence of fistula is always accompanied by dehiscence, although a dehiscence may not develop into a fistula, should it be blocked by omentum or surrounding organs (110, 117). The incidence of overt dehiscence varies from 0.1% to 30% in the literature (13, 15, 17, 27, 31, 40, 44, 46, 76, 77, 81, 96, 113, 120, 123, 126, 133, 135). The Colon Cancer Project of the Saint Mary's Hospital in London, a multicentric study of patients submitted to bowel resections revealed a post operative mortality of 22% in patients with dehiscence and 7% for uncomplicated anastomoses. This led to the struggle various authors to achieve better results, regarding techniques and suture materials, such as the number of planes involved, inverted or everted sutures, wound healing and the influence of local and systemic factors, like infections, antibiotics, NSAIDs on sutures. Recently, surgical stapling gained importance among surgeons, due to its technical advantages. However, this is still very controversial and must undergo further investigations (93, 107, 109, 112, 115, 116). So, in order to understand the pathophysiology of the complications and to reduce morbidity and mortality, related to intestinal anastomoses, it is necessary to study the events involved in intestinal healing after resection, as well as the technique, materials used and the factors related to anastomotic failure.
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