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或 CT 血管造影。对于上肢静脉再通，我们通常从外周上肢进行常规静脉造影监测，
因为这不需要使用镇静药物，并且提供了一种快速简便的方法来跟踪再通血管状态。
我们相信重新干预中度的再狭窄比病变完全再闭塞要容易得多，所以返回手术室再次
干预的门槛可以很低。根据我们的经验，如果血管再通状态可以保持几个月，那么几

乎可以保证长期的通畅，晚期的再闭塞并不常见。

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