Analyzing economic aspects of the continuous versus the interrupted suture method in microvascular anastomosis in a rat model / Mohamed Farouk Hassan Abdelaziz ; Supervised Sherif Zamer Ezzat , Abdo Mohamed Abdallah Darwish , Ahmed Mohamed Ismail Hashem

Thesis (Ph.D.) - Cairo University - Faculty of Medicine - Department of General Surgery

Introduction: Several new techniques have been developed for microvascular repair to reduce the procedure time Abramson, et al 1991. Using the standard interrupted suture technique, more than half of the surgeon{u2019}s time is spent in tying knots, cutting thread ends and needle retrieval to prepare the next suture, these activities add greatly to the time required. MAN and ACLAND, 1981.The continuous suture technique (CST) can save vascular anastomosis time over IST Khodadad, et al 1966. In our study we compared IST & CST in anastomosis of rate femoral vessels to assess the economic benefits of the CST over the IST in reducing the anastomosis time, bleeding time & number of threads used with comparable patency rates between both reported by several previous authors. Materials and methods: Twenty adult female Wister rats weighing from 180 gm to 250 gm and aged about 5 months were divided into two groups, Group A: the first 10 rats, Group B: the subsequent 10 rats to identify a possible 2learning curve effect3, In each studied animal the femoral artery and vein of each groin were anastomosed.Thus, a total of 40 femoral arteries and 40 femoral veins were finally included in the study: the artery and vein of one groin were transected and repaired using the CST (Continuous Suture technique) while those of the other groin served as a control and were incised and reconnected with the traditional IST (Interrupted Suture Technique). Results: Arterial patency in Group 1 was 90% for IST & 70% for CST, Arterial patency in Group 2 was 90% for IST & 90% for CST, Venous patency in Group 1 was 80% for IST & 50% for CST, Venous patency in Group 2 was 90% for IST & 70% for CST. The anastomotic time in CST was significantly better than with IST in both arteries & veins in both first & second groups

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