Development of method of decision making of reconstructing intercostal artery during thoracic aortic operation

点击翻译按钮获取中文摘要

Paraplegia after thoracoabdominal aortic operation is very miserable complication. We must decide which intercostal artery must be reconstructed or not. But the decision making is very drfficutt. So we studied the possibility of prediction of intercostal arteries must be reconstructed.Method: Neuron exciting aminooacid was infused to intercostal arteries by using two balloon catheters inserted from femoral artery. The evoked potential of spinal cord during infusion was measured.Results: The change of evoked potential was recognized after the infusion of neuron exiting aminiacids. But the thereshouled for induction of potential change was very different from dog to dog. And the effect of infusion have continued for long time.Conclusions: Although we think that the preoperative infusion of neuro exciting aminoacids may be useful of detecting intercostal aretries to be reconstructed, we could not decide whether the effect was derived by the variation of arterial network because the reaction severity was very different from dog to dog. And the long lasting effect of infusing aminoacids must be the adverse effect for clinical use.