科研之友
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摘要
Introduction: Flap necrosis due to blood circulation disorders is a serious problem in reconstructive surgery. Methods to achieve both arterial and venous microvascular augmentation at the flap periphery have therefore been developed to prevent post-surgical circulation problems, especially for large pedicle flaps and free flaps containing three more vascular territories. Moreover, the benefits of microvascular venous augmentation (VA; superdrainage) alone have been established, but the optimal duration of post-surgical venous drainage has not yet been determined. %26lt;br%26gt;Methods: The surviving flap area was compared after standard and short-term VA in the extended island flap model of the rat abdomen. A flap model using the left superficial inferior epigastric artery/vein as the vascular pedicle was used as a control group (n = 6). The lateral branch of the right superficial inferior epigastric vein remained unresected at the end of the flap in the VA group (n = 7), but was ligated at 24 h post-surgery in the temporary venous augmentation (TVA) group (n = 7). %26lt;br%26gt;Results: The flap survival rates on postoperative day 7 in the control, VA and TVA groups were 74.8 +/- 8.4%, 90.1 +/- 3.7% and 89.9 +/- 3.5%, respectively. The surviving areas were significantly improved in the VA and TVA groups in comparison to the control group (p %26lt; 0.01), but there was no significant difference between the VA and TVA groups. %26lt;br%26gt;Conclusions: The short-term venous drainage from the flap end after surgery was as effective as long-term VA. Flap transplantation could therefore be clinically easier and more reliable when starting short-term venous drainage during surgery.
- 出版日期2012-5
