长期低压阻抗测量在皮下植入式心脏转换器-除器中
Giacomo Mugnai1, Luca Tomasi1, Luca Ottaviano2
1Electrophysiology and Cardiac Pacing, Division of Cardiology, Department of Cardio-Thoracic, School of Medicine, University Hospital of Verona, Verona, Italy.
Heart rhythm O2
|November 24, 2025
概括
低压阻抗 (LVI) 与皮下植入式心脏转换器-除器 (S-ICD) 患者的高压阻抗 (HVI) 有很强的相关性. 乳腺炎测量可以作为HIV的非侵入性替代品,在稳定之前显示植入后的初始增加.
科学领域:
- 心脏病学 心脏病学
- 生物医学工程 生物医学工程
- 医疗器械 医疗器械
背景情况:
- 高压阻抗 (HVI) 对于皮下植入式心脏转换器-除器 (S-ICD) 的除功效至关重要.
- 较新的S-ICD系统提供使用下值脉冲的长期低压阻抗 (LVI) 测量.
研究的目的:
- 评估低压阻抗 (LVI) 作为高压阻抗 (HVI) 的替代品.
- 描述S-ICD接收者的LVI的长期趋势.
主要方法:
- 分析了来自1226名在意大利15个中心接受新S-ICD植入的患者的数据.
- 计算LVI和HVI的每周平均值,评估同时测量的一致性.
主要成果:
- 在37个月的中位数随访期间,在LVI和HVI之间发现了强烈的相关性 (r=0.90).
- 在植入后的前3个月内,LVI显著增加,然后稳定.
- 较高的LVI值与超重/肥胖以及特定的S-ICD植入技术有关.
结论:
- LVI表现出对HVI的强烈认同,支持其作为非侵入性替代品的使用.
- 观察到的LVI趋势可能反映了植入后初期生理变化.
相关概念视频
Pulse rhythm
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...
Equipments Used To Measure Blood Pressure
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...


