Key points Transcatheter aortic valve replacement (TAVR) is now the standard of care for patients with severe symptomatic aortic stenosis (AS). New conduction defects remain a challenge following TAVR in patients requiring permanent pacemaker implantation (PPI). CMRI identified myocardial fibrosis (MF) with an increased extracellular volume (ECV) is a new predictor for these conduction defects following TAVR.

中文翻译：

---

心肌细胞外体积分数升高作为经导管主动脉瓣置换术后传导缺陷的新预测因子


要点 经导管主动脉瓣置换术 (TAVR) 现在是重度症状性主动脉瓣狭窄 (AS) 患者的标准治疗方法。对于需要永久起搏器植入 (PPI) 的患者来说，TAVR 后新的传导缺陷仍然是一个挑战。 CMRI 发现心肌纤维化 (MF) 伴细胞外容量 (ECV) 增加，是 TAVR 后这些传导缺陷的新预测因子。