节奏模式和不同心声学参数对心脏输出 (PADIAC) 的影响
Hermann Blessberger1,2, Juergen Kammler1,2,3, Joerg Kellermair1,2
1Department of Cardiology, Kepler University Hospital, Linz, Austria.
在所有患者中,AV同步节奏显著改善了中风体积. 然而,之前的急性心肌梗塞减弱了这一益处,没有心声学参数预测中风体积增加.
科学领域:
- 心脏病学 心脏病学
- 生物医学工程 生物医学工程
- 临床电生理学 临床电生理学
背景情况:
- 在患有鼻节律和AV阻塞的患者中,AV同步节奏的血液动力学优势需要进一步澄清.
- 了解影响不同节奏模式心脏输出变化的因素对于优化患者护理至关重要.
研究的目的:
- 系统地调查回声心脏学和流行病学参数与AV同步 (DDD) 与AV异步 (VVI) 节奏期间心脏输出变化的关联.
- 为了确定从AV同步节奏中获得血动力学益处的预测因素.
主要方法:
- 一个前性单中心研究涉及40名患者在双腔室心脏起器植入后的鼻节律.
- 综合性心声回声评估,包括26个参数 (光斑跟踪应变) 和在DDD和VVI节奏下测量中风体积.
- 对流行病学数据的分析,包括急性心肌梗塞 (AMI) 的病史,与中风体积变化相关.
主要成果:
- 在所有患者中,AV同步DDD节奏导致中风体积显著增加 (中位数增加16.9%,P<0.001).
- 没有回声心脏学参数预测了中风体积增加的程度.
- 患有AMI的病史与减弱的中风体积增长有关,在这个子组中观察到A和S波速度降低.
结论:
- 这项研究中的所有患者从血液动力学上受益于AV同步DDD节奏.
- 心声学参数无法预测中风体积改善的程度.
- 在有AMI病史的患者中,AV同步节奏对中风体积的积极影响减少了.
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