迷宫手术后心房失常的复发:基于导管的绘图的洞察
Dylan Goings1, Ikram U Haq2, Michael Brandt1
1Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota.
Heart rhythm
|November 16, 2025
概括
迷宫手术后反复出现的心房律不整通常是由肺静脉重新连接和不完整的病变引起的. 耐用的切割和接迷宫技术在治疗心房动和动方面显示出比热除方法更好的结果.
科学领域:
- 心脏病学 心脏病学
- 心脏外科手术 心脏外科手术
- 电子生理学 电子生理学
背景情况:
- 考克斯-马兹手术是一种手术治疗心房动 (AF) 的方法,利用病变组来隔离肺静脉 (PVs) 并破坏心房回流回路.
- 了解迷宫后心律失常复发的机制对于改善患者的治疗结果至关重要.
研究的目的:
- 描述在迷宫手术后复发性心房律乱的背后的机制.
- 评估电解剖绘图在评估迷宫手术结果中的有效性.
主要方法:
- 对接受了迷宫手术的86名患者 (2008-2023) 的回顾性分析,这些患者因复发性AF或心房 (AFl) 需要随后的导管切除.
- 电解剖学绘图被用来评估病变完整性,识别心律失常模式,并评估切除成功.
- 基于不同迷宫技术 (切割和,冷热,射频) 和相关的外科因素的复发率的比较.
主要成果:
- 迷宫后,31.8%的人出现了AF和AFl复发,而33.7%的人只有AF,33.7%的人只有AFl.
- 在PV隔离后,78.3%的患者观察到肺静脉 (PV) 再连接,与冷热 (67%) 和射频 (56%) 技术相比,切割和合迷宫 (5%) 的比例明显较低.
- 在77.9%的患者中,可以诱导巨进,这通常与不完整的线性病变有关. 手术因素,如左心房附属物-至心心膜环病变和心心膜修复,与的复发率增加相关.
结论:
- 迷宫后的复发性心房律不整主要归因于PV重新连接和不完整的线性损伤.
- 切割和接迷宫技术显示出优越的耐用性,相比热除方法.
- 强调细致的病变创建和手术内验证对于减少复发和提高迷宫手术疗效至关重要.
关键词:
心房动是一种心房动.在心房动.考克斯 - 马兹程序通过冷除,可以进行冷除.切割和接迷宫 切割和接迷宫电子生理学绘制地图宏观进入性心动减速症.肺静脉隔离 肺静脉隔离 肺静脉隔离无线电频率剥离法 无线电频率剥离法通过手术切除,可以进行手术切除.更多相关视频
相关概念视频
Dysrhythmias VI: Management of Dysrhythmias
422
Dysrhythmia management involves a multifaceted approach, incorporating pharmacological treatments, medical procedures, surgical interventions, lifestyle modifications, and patient education.Pharmacological ManagementAntiarrhythmic Drugs:Class I (Sodium Channel Blockers): This class includes quinidine and procainamide, which reduce the speed of impulse conduction in the heart, stabilize the cardiac membrane, and control arrhythmias. Quinidine and procainamide are Class IA agents that prolong the...
422
Mechanism of Cardiac Arrhythmias
1.6K
Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
1.6K
ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
445
Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
445
Dysrhythmias V: Evaluating Dysrhythmias
315
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...
315
Disturbances in Heart Rhythm
2.5K
Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
2.5K
Cardiomyopathy III: Hypertrophic Cardiomyopathy
380
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
380


