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[Bronchial anastomoses after lung transplantation: results with single running suture technique].

BACKGROUND
The standard technique for the bronchial anastomosis in LTX is a running suture on the membranous and single stitches on the cartilaginous portion of the bronchus. The aim of this retrospective study was to compare the results of this technique to the new single running suture technique.


METHODS
Between January and December 1998, 56 consecutive single (n = 17) and bilateral (n = 39) lung transplants in 52 patients were performed. Eighty-three bronchial anastomoses were retrospectively analyzed and evaluated by separating into two groups: group 1 (24 patients, 39 anastomoses) with standard technique and group 2 (24 patients, 44 anastomoses) with single running suture. The two groups were comparable with regard to age, primary diagnosis, intraoperative use of extracorporeal circulation, ischemia time, duration of mechanical ventilation, ICU and number of acute rejections/100 days. Bronchial healing was assessed with bronchoscopic follow-up (5-16 months).


RESULTS
Primary excellent airway healing was observed in 36 anastomoses (92%) in group 1 and in 41 (93%) in group 2. In 2 anastomoses in group 1 (5%) and in 2 anastomoses in group 2 (4.6%) necrosis less than 5 mm was observed. In one anastomosis in group 1 (2.7%) a 10-mm bronchial necrosis with partial occlusion of the bronchial lumen by necrotic tissue necessitated temporary intraluminal stenting. In one anastomosis in group 2 (2.3%) malacia of the bronchus intermedius occurred.


CONCLUSION
The single running suture technique for bronchial anastomosis is a safe technique providing the same results as the established technique and we advocate its use for bronchial anastomosis.