• Patients undergoing transcatheter aortic valve implantation (TAVI) may require a coronary angiogram in about 3% of cases at 1 year, but this rate increases to 16% at 4.5 years of follow-up.
• However, among TAVI patients who undergo pre-procedural percutaneous coronary intervention, coronary angiogram is usually performed in 9% of cases at 1 year and this rate increases to 28% at 4.5 years of follow-up.
• Whenever possible, commissural alignment techniques should be implemented during TAVI to facilitate future coronary artery access.

中文翻译：

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主动脉瓣介入术后冠状动脉通路

• 接受经导管主动脉瓣植入术 (TAVI) 的患者在 1 年时可能需要约 3% 的病例进行冠状动脉造影，但在 4.5 年的随访中这一比率增加到 16%。
• 然而，在接受术前经皮冠状动脉介入治疗的 TAVI 患者中，通常有 9% 的病例在 1 年时进行冠状动脉造影，并且在 4.5 年的随访中这一比例增加到 28%。
• 只要有可能，在 TAVI 期间应实施连合对齐技术，以促进未来的冠状动脉通路。