因此，行主动脉置换外科手术的决定应具体分析，并且收缩储备缺失的患者不应视为主动脉置换术的绝对禁忌症。

Thus the decision for AVR surgery should be made case by case and the absence of CR should not be considered to be an absolute contraindication to AVR.

youdao

这种技术可能是全主动脉弓置换术的有效替代手术。

This technique could be an attractive alternative to conventional total arch replacement.

youdao

然而，与外科瓣膜置换术（目前即使在高危患者中仍然是金标准）相比较，经导管主动脉瓣置换术需要证明它的有效性。

Nevertheless, transcatheter aortic valve replacement needs to prove its effectiveness in comparison to surgical valve replacement, which remains the gold standard, even in high-risk patients.

youdao