Microvascular histopathology in head and neck oncology

摘要: A histological study of both recipient and flap vessels was performed in 30 patients with head neck cancer, relevant preoperative risk factors were assessed. total 35 free flaps transferred patients; 16 had radiotherapy, 13 smokers, eight hypertension six peripheral vascular disease. No significant venous pathology found either the or veins. However, over two-thirds arteries one-half to have microscopic arterial pathology. The only pre-existing factor significantly influencing vessel (P=0.007). All survived, although two there some loss skin paddle. This reveals that majority undergoing microsurgery region damage arteries, but this does not a effect on overall patency microvascular anastomoses.