左捆分支节奏心脏再同步治疗vs双心室节奏心脏再同步治疗-时间写一个对双心室节奏-心脏再同步治疗的requiem
Akshyaya Pradhan1, Daljeet Saggu2, Monika Bhandari3
1Department of Cardiology, King George's Medical University, Lucknow 226003, Uttar Pradesh, India.
World journal of cardiology
|March 10, 2025
概括
在心力衰竭患者中,左束枝节奏 (LBBP) 与双心室节奏 (BVP) 相比,为心脏再同步治疗 (CRT) 提供了更好的结果. LBBP-CRT显示,心脏功能得到了更大的改善,症状减少,这表明标准护理的潜在转变.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 心脏衰竭管理的管理
背景情况:
- 使用双心室节奏 (BVP) 的心脏再同步疗法 (CRT) 已被确立为心力衰竭,减少排气分数和左捆分支阻塞.
- 对BVP-CRT的显著不响应率 (30-40%) 强调了需要替代步调策略的需要.
- 左捆分支节奏 (LBBP) 已成为CRT的一个有希望的替代方案.
研究的目的:
- 为了比较LBBP-CRT与传统BVP-CRT的疗效和结果.
- 评估关键性能指标,包括QRS持续时间,喷射率,节奏值和临床状态.
- 评估LBBP-CRT作为未来护理标准的潜力.
主要方法:
- 最近比较LBBP-CRT和BVP-CRT的研究的元分析.
- 包括QRS持续时间,左心室喷射率 (LVEF),节奏值,纽约心脏协会 (NYHA) 类和大脑尿素 (BNP) 水平的数据.
- 两种节奏模式之间的聚合结果的比较分析.
主要成果:
- 与BVP-CRT相比,LBBP-CRT显示出优异的QRS持续时间减少和LVEF改善.
- 在随访期间,LBBP-CRT与持续较低的节奏值有关.
- 通过LBBP-CRT观察到NYHA类和BNP水平的显著改善.
结论:
- 在心力衰竭和LBB阻塞的患者中,LBBP-CRT比BVP-CRT具有显著的优势.
- LBBP-CRT与更好的电气和功能性心脏重塑有关.
- 随着进一步的进步和专业知识,LBBP-CRT显示出成为首选的CRT策略的潜力.
相关概念视频
Electrophysiology of Normal Cardiac Rhythm
1.9K
The normal cardiac rhythm is a synchronized electrical activity that facilitates the regular and coordinated contraction of the heart muscle. This process is essential for efficient blood circulation throughout the body. The fundamental elements involved in establishing and maintaining this rhythm include the unique electrical properties of cardiac muscle cells, the sinoatrial (SA) node's pacemaker function, the specialized conducting system, and the ionic mechanisms underlying each phase...
1.9K
Cardiac Action Potential
757
Cardiac action potentials are essential for proper heart function, enabling the rhythmic contractions needed for adequate blood circulation. Nodal cells and Purkinje fibers, specialized for electrical conduction, generate these action potentials.
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
757
The Cardiac Cycle
81.5K
The heart beats rhythmically in a sequence called the cardiac cycle—a rapid coordination of contraction (systole) and relaxation (diastole).
The Process
Electrical signals—sent from the sinoatrial (SA) node in the right atrial wall to the atrioventricular (AV) node between the right atrium and right ventricle—cause both atria to simultaneously contract. When the signal reaches the AV node, it pauses for approximately a tenth of a second, allowing the atria to contract and...
The Process
Electrical signals—sent from the sinoatrial (SA) node in the right atrial wall to the atrioventricular (AV) node between the right atrium and right ventricle—cause both atria to simultaneously contract. When the signal reaches the AV node, it pauses for approximately a tenth of a second, allowing the atria to contract and...
81.5K
Conduction System of the Heart
4.1K
Autorhythmicity is a term that refers to the heart's inherent ability to generate electrical signals and instigate muscle contractions. This self-regulating conduction system within the heart consists of two key components: the pacemaker cells and specialized conducting cells.
The pacemaker cells are located in two primary nodes: the sinoatrial (SA) node and the atrioventricular (AV) node. The SA node pacemaker cells can autonomously depolarize, triggering an action potential that leads to the...
The pacemaker cells are located in two primary nodes: the sinoatrial (SA) node and the atrioventricular (AV) node. The SA node pacemaker cells can autonomously depolarize, triggering an action potential that leads to the...
4.1K
Pulse rhythm
749
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...
749
Imbalances in Cardiac Output
1.3K
The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
1.3K


