无超声基于心脏再同步治疗的左心室内心节律调节的有效性:一个元分析
Hritvik Jain1, Muhammad Daoud Tariq2, Abdul Moiz Khan3
1From the Department of Internal Medicine, All India Institute of Medical Sciences (AIIMS), Jodhpur, India.
Cardiology in review
|March 26, 2025
概括
无线内心刺激用于CRT (WiSE-CRT) 系统,一种无节奏技术,显著改善了心力衰竭症状和心脏功能. 这种新的方法为那些对传统心脏再同步治疗没有反应的患者提供了一个有希望的替代方案.
科学领域:
- 心脏病学 心脏病学
- 生物医学工程 生物医学工程
背景情况:
- 减少喷射分数 (HFrEF) 的心力衰竭是发病率和死亡率的重要原因.
- 心脏再同步疗法 (CRT) 是有效的,但有局限性,包括置问题和患者反应不足.
研究的目的:
- 为了评估无线内心刺激对CRT (WiSE-CRT) 系统的有效性,一种无左心室 (LV) 节奏技术.
- 评估WiSE-CRT对心力衰竭患者关键临床和心声学参数的影响.
主要方法:
- 在多个数据库中进行了全面的文献搜索,截至2024年8月.
- 包括7项涉及468名接受WiSE-CRT治疗的患者的研究.
- 统计分析使用随机效应模型,将NYHA分数,LVEF,LVEDV,LVESV和QRS持续时间的平均差异 (MDs) 和95%置信区间 (CI) 结合起来.
主要成果:
- WiSE-CRT显著改善了纽约心脏协会 (NYHA) 的功能评分 (MD: -0.44; P = 0.0002).
- 在左心室喷射分数 (LVEF) (MD:5.71;P < 0.001),LV终端透气体体积 (LVEDV) (MD: -24.49;P < 0.001) 和LV终端静脉体积 (LVESV) (MD: -24.47;P < 0.001) 中观察到显著改善.
- 还注意到QRS持续时间的显著减少 (MD: -38.62;P < 0.001).
结论:
- WiSE-CRT系统在改善心力衰竭患者的临床和心声学结果方面表现出显著的有效性.
- 这种无节奏技术为那些不符合或不响应常规CRT的患者提供了可行的替代方案.
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...
Imbalances in Cardiac Output
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 blood...
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 blood...
Mitral Regurgitation I: Introduction
Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
Mitral Regurgitation III: Medical Management
Mitral regurgitation (MR) is characterized by retrograde blood circulation from the left ventricle into the left atrium due to inadequate mitral valve closure. The severity of the condition, symptoms, and underlying cause determine treatment strategies.Monitoring and Pharmacological TreatmentPatients with mild to moderate MR typically do not need immediate intervention but regular monitoring to assess progression and guide treatment. Patients with mild MR should have an echocardiogram every 3-5...
Dysrhythmias V: Evaluating Dysrhythmias
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...
Heart Failure II: Pathophysiology
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...


