大动脉反:从膜到心肌功能障碍
Alba-Nidia Marigliano1, José-Tomas Ortiz1, Jorge Casas2
1Heart Institute, Teknon Medical Center, 08022 Barcelona, Spain.
Journal of clinical medicine
|May 25, 2024
概括
优化慢性大动脉反 (AR) 的手术时间是至关重要的. 集成高级成像技术,如心声学和心脏MRI,可以防止无症状患者的不可逆转的心脏损伤.
科学领域:
- 心脏病学 心脏病学
- 心血管成像 - 心血管成像
背景情况:
- 慢性大动脉反 (AR) 导致左心室 (LV) 体积过载,通常耐受长期的LV扩张,但保留射出分数 (EF).
- 目前用于AR量化的心声回声 (多普勒) 测量缺乏个别精度,需要综合参数评估.
- 指南建议根据症状或特定的LV功能障碍标准 (LVEF <55%,末直径>50毫米) 对严重AR进行手术.
研究的目的:
- 审查多式成像参数,以改善AR的量化和亚临床LV功能障碍的评估.
- 确定简单的模型,集成心声回声和心磁共振 (CMR) 数据,以指导无症状严重AR的最佳手术时间.
- 预防慢性严重AR等待手术的患者不可逆转的心肌损伤.
主要方法:
- 审查当前的心声回声技术和限制在评估AR严重程度和LV功能.
- 评估先进的成像方法,包括纵向LV菌株和CMR,以检测亚临床心肌功能障碍.
- 分析现有指导方针和建议的综合模型,用于在严重的AR中进行手术决策.
主要成果:
- 没有单一的多普勒测量可以准确地量化所有患者的AR;多模式评估是必不可少的.
- 在等待手术的无症状严重AR患者中,可以发生亚临床心肌损伤,这会对结果产生负面影响.
- 纵向LV菌株和CMR在评估LV功能和指导手术时间方面表现有前途.
结论:
- 多模式成像,整合心声学和CMR,可以提高慢性严重AR和LV状态的评估.
- 需要开发综合模型,对死亡率预测因子进行精细的截止值.
- 使用先进成像技术进行大动脉置换/修复 (AVR) 的准确时间可以预防不可逆转的心肌损伤并改善患者的治疗结果.
关键词:
多普勒回声心电图 (Doppler echocardiography) 是一种多普勒回声心电图.一大动脉的反.左心室功能障碍是什么磁共振成像技术的使用心肌纤维化是心肌纤维化的一种.膜外科手术治疗的治疗方法更多相关视频
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