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European Journal of Cardio-Thoracic Surgery, Vol 4, 97-100, Copyright © 1990 by European Association for Cardio-thoracic Surgery

ARTICLES

Sutures, staplers, leaks and strictures. A review of anastomoses in oesophageal resection at Royal Victoria Hospital, Belfast 1977-1986

KG McManus, AJ Ritchie, J McGuigan, HM Stevenson and JR Gibbons
Department of Thoracic Surgery, Royal Victoria Hospital, Belfast, Northern Ireland, UK.

Leakage from an oesophagogastric anastomosis has a high morbidity and mortality. Recent evidence suggests that mechanical tissue stapling devices can decrease the rate of anastomotic breakdown but at the expense of an increase in the occurrence of fibrotic strictures at the anastomosis site. This study examines the rate of leakage and stricture in hand sutured and stapled anastomoses. A retrospective study was made of 221 oesophagogastric anastomoses following resection for carcinoma between 1977 and 1986. There were 122 sutured and 99 stapled anastomoses. Leak occurred in 21 sutured (17.2%) and 7 stapled (7.1%), P less than 0.05. If the stapled anastomosis was completely satisfactory and required no reinforcing sutures, the breakdown rate was in fact only 3% (2/69), P less than 0.01. A stapled anastomosis which required reinforcement had a similar chance of breakdown as a sutured anastomosis (16.7%). There was little difference in the performance of registrars in training and consultants at hand-sewn anastomoses with leakage rates of 13.7% and 18%, respectively; P greater than 0.05. The registrars, however, did not improve with the use of the stapler with a leakage rate of 14.3% compared to the consultants' rate of 1.75%, P less than 0.05. Involvement of the limits of resection with tumour slightly favoured breakdown--15.5% compared to 11.6% if the limits were free from tumour, P greater than 0.05. The incidence of malignant strictures was similar in both groups but benign stricture was more common in the stapled group--13% (13/99) compared to 1.6% (2/122), P less than 0.01. The mechanical stapler brings uniformity to the anastomosis but cannot compensate for deficiencies in surgical technique.

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