相关实验视频
Updated: Jun 9, 2025
08:00
Ambulatory ECG Recording in Mice
Published on: May 27, 2010
23.8K
使用七个电极记录器进行十二导体的门诊心电图记录:一种用于电生理学评估的替代方法
Carlos Arthur Hansel Diniz da Costa1, Gabriela Menichelli Medeiros Coelho1, Rhanniel Theodorus Helhyas Oliveira Shilva Gomes Villar1
1Federal University of São Paulo, São Paulo, Brazil.
Indian pacing and electrophysiology journal
|October 25, 2024
概括
带有7个电极的12个导向的门诊心电图 (12L-AECG) 提供与标准心电图相比的波形,有助于心律失常诊断和电生理学规划.
科学领域:
- 心脏病学 心脏病学
- 医疗器械 医疗器械
- 诊断工具 诊断工具 诊断工具
背景情况:
- 传统的三导体门诊心电图 (3L-AECG) 缺乏用于电生理干预计划的详细QRS形态.
- 12个导向的门诊心电图 (12L-AECG) 提供了增强的空间和时间分辨率,但未得到充分利用.
- 标准心电图 (S-ECG) 提供了详细的波形,但不是门诊.
研究的目的:
- 为了验证七电极12L-AECG和S-ECG之间的波形相似性.
- 评估12L-AECG在改善心律失常诊断和电生理程序规划方面的潜力.
主要方法:
- 一个问卷提供了240个QRS复合物的并排比较,来自20名患者的12L-AECG和S-ECG.
- 经过电生理学培训的心脏病学家评估了波形相似性,将它们分类为"相似"或"不同".
- 计算了观察者间一致和相似的百分比.
主要成果:
- 心脏病学家在84.50%的比较中发现12L-AECG波形类似于S-ECG (95% CI 83.20-86.50).
- 观察者之间的共识是中等的 (0.542,p < 0.001).
- 具体线索的相似性高达98% (95% CI 92.96-99.76),没有显著的患者差异 (p = 0.407).
结论:
- 七个电极的12L-AECG和S-ECG产生了可比的波形.
- 这种波形相似性支持12L-AECG对于精确的心律失常监测的临床实用性.
- 12L-AECG可以帮助精确规划电生理干预.
更多相关视频
05:03Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function
Published on: December 11, 2019
8.6K
18:11A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
Published on: December 28, 2012
24.2K
相关概念视频
01:28Electrocardiogram Fundamentals
535
Introduction
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
An electrocardiogram (ECG) is a diagnostic tool for identifying cardiac conditions such as arrhythmias, conduction abnormalities, and myocardial ischemia.
Definition
An electrocardiogram (ECG) visualizes the heart's electrical activity by tracing the electrical movement associated with each heartbeat on a graph or monitor. As the heart beats, an electrical wave passes through it, correlating with the cardiac cycle events.
Parts of an ECG
An ECG utilizes electrodes on the skin...
535
01:29Electrocardiogram
2.2K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
2.2K
01:23Holter Monitor: 24-Hour Monitoring
3
Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
3
01:30Pulse rhythm
768
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...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
768
01:24ECG Interpretation of Rhythms
530
An electrocardiogram (ECG)graphically represents the heart's electrical activity on ECG paper or a monitor.
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
Components of the Electrocardiogram
The primary components of a normal ECG waveform in Normal sinus rhythm(NSR) include the P wave, PR interval, QRS complex, ST segment, T wave, and occasionally a U wave.
ECG waveforms are divided by vertical and horizontal lines at standard intervals.
The horizontal axis measures time and rate, and the vertical axis measures amplitude or voltage....
530
01:30Dysrhythmias V: Evaluating Dysrhythmias
3
Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...
3