在机械心肌假体的风湿性大动脉狭窄症中TAVR:短门-假体距离的案例系列
Sneha Garg1, Balbir Singh Makkar1
1Interventional Cardiology, Max Super Specialty Hospital, New Delhi, India.
JACC. Case reports
|October 24, 2025
概括
在患有类风性大动脉狭窄症和先前机械 mitra 置换的患者中,通过导管大动脉置换 (TAVR) 是复杂的. 先进的成像和个性化的策略确保了有利的结果,尽管解剖学上的挑战.
科学领域:
- 心脏病学 心脏病学
- 干预心脏病学 干预心脏病学
- 心脏外科手术 心脏外科手术
背景情况:
- 风湿性大动脉狭窄 (AS) 随着先前的机械中枢置换 (MMVR) 构成了跨导管大动脉置换 (TAVR) 的独特挑战.
- 在这些患者中,较短的动脉对称距离 (AMD) 会增加程序的复杂性和风险.
- 有限的数据存在于这个特定的高风险人群的TAVR结果.
研究的目的:
- 检查手术复杂性,成像策略和TAVR在风湿性AS患者和以前的MMVR患者的临床结果.
- 在这个具有挑战性的队列中确定成功的门部署和患者管理的关键考虑因素.
- 突出高级成像在导航解剖学约束中的作用.
主要方法:
- 病例系列包括4名接受TAVR治疗的患者,有风湿性AS和MMVR病史.
- 使用程序前多探测器计算机断层扫描 (MDCT) 进行解剖评估.
- 在实时指导和门部署优化方面,采用了手术内转食管心声学 (TEE).
主要成果:
- 所有患者都接受了成功的TAVR,并取得了良好的临床结果.
- 一名患者经历了 mitrale 传单的冲击,需要重新定位门.
- 没有报告过透导管心脏栓塞的病例.
- 关键的挑战包括预防额头骨假体干扰和左心室外流通道 (LVOT) 阻塞.
结论:
- 在某些患有类风湿性AS和先前的MMVR患者中,TAVR是可行的,即使是短期的AMD.
- 个性化的程序规划,仔细的门选择和先进的成像 (MDCT,TEE) 对于成功至关重要.
- 缓解风险,如关节假肢干扰和LVOT阻塞,需要仔细关注细节.
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