• A A Khan, J M D Wheeler, C Cunningham, B George, M Kettlewell, and N J McC Mortensen.
• St Thomas' Hospital, London, UK. aadilakhan@gmail.com
• Colorectal Dis. 2008 Jul 1;10(6):587-92.

PurposeAnastomotic leaks in colorectal surgery are associated with significant morbidity and mortality and may result in poor functional and oncological outcomes. Diagnostic difficulties may delay identification and appropriate management of leaks. The aim of this study was to look at the diagnosis, clinical management and outcomes of anastamotic leaks in our department.MethodA retrospective audit and case note review of all patients who underwent the formation of a colorectal anastomosis between January 1996 and December 2002 (n = 1421) was performed. An anastomotic leak was defined as sepsis identified to have arisen from an anastomosis that subsequently required surgery, radiological drainage or intravenous antibiotics. Forty-one patients (25 male, 16 female) with a median age of 60 years (range 7-89 years) were identified as having suffered an anastomotic leak.ResultsThe median time to diagnosis of an anastomotic leak following surgery was 7 days (range 3-29). At re-operation, 21 patients (51%) underwent formation of a stoma, and any who required the anastomosis to be formally taken down have been left with a 'permanent' stoma. Currently only four of 12 patients (33%) who required a stoma for an anastomotic leak following anterior resection have undergone stoma reversal. Eleven of 16 patients (69%) who had received a stoma following another colorectal procedure had undergone stoma reversal. The mortality associated with an anastamotic leak in this series was 5% (n = 2).ConclusionAlthough anastomotic leaks following colorectal surgery are associated with significant morbidity and stoma formation, early and aggressive management should result in a low overall mortality. If an anastomosis is taken down following an anastomotic leak after anterior resection, this will usually result in a 'permanent' stoma.

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