卡沃特里克斯皮德 (Cavotricuspid) 静脉的映射,以评估在常见心房动 (common atrial flutter) 期间的双向阻塞
J Chen1, C de Chillou, T Basiouny
1Service de Cardiologie, Hôpital Central, Nancy, France.
Circulation
|December 22, 1999
概括
这项研究验证了一种新的方法,用于在心房移除过程中确认洞穴柱支架 (CTI) 阻塞. 对心房脱极化的逆转是成功切除的关键指标.
科学领域:
- 电子生理学 电子生理学
- 心脏节律失常研究 心脏节律失常研究
背景情况:
- 耳前移除需要确认洞腔椎间盘 (CTI) 阻塞.
- 评估CTI区块的现有方法存在局限性.
研究的目的:
- 将已公布的方法与确定CTI块的替代方法进行比较.
- 为了确定成功的CTI阻断在心房移除期间的最终标准.
主要方法:
- 使用24极映射导管评估CTI阻塞在39名患者进行心房移除.
- 定义了 CTI 阻断的三个标准:反向心房脱极化,从节拍部位的差异导电延迟.
- 从侧面 (A,B) 和隔膜 (C,D) 的位置步进到块线 (LOB).
主要成果:
- 在所有39名患者中都取得了成功的CTI阻塞.
- 对CTI区块的三个定义标准一致存在或不在一起.
- 在阻塞确认之前,在28.2%的患者中观察到渐进性CTI传导延迟.
结论:
- 向LOB逆转心房脱极化序列是成功进行心房移除的决定性标准.
- 拟议的方法可提供可靠的证实CTI区块.
相关概念视频
Imaging Studies for Cardiovascular System II:Types of Echocardiography
Echocardiography plays a role in assessing cardiac health and detecting heart conditions, with various types providing critical insights for diagnosis and treatment.
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for diagnosing...
Types of Echocardiography
Transthoracic Echocardiography (TTE)
TTE is the most common type of echocardiogram which involves placing a transducer on the patient's chest, emitting sound waves to create heart images. TTE is invaluable for evaluating the heart's size, structure, and motion, making it particularly useful for diagnosing...
Imaging Studies for Cardiovascular System V: CT
Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Cardiac Catheterization III: Left Heart Catheterization
Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...
Mitral Stenosis II: Clinical features and Diagnostic Tests
Mitral stenosis is a heart condition in which the mitral valve, which allows blood to flow from the left atrium to the left ventricle, becomes narrowed or stenotic. This narrowing hinders blood flow and leads to clinical symptoms requiring specific medical evaluations and management strategies. The following overview outlines the clinical symptoms, assessments, diagnostic findings, prevention methods, and treatments for mitral stenosis.Clinical ManifestationsDyspnea (shortness of breath): This...
Dysrhythmias IV: Characteristics of Bradyarrhythmias
Bradyarrhythmias are cardiac rhythm disorders characterized by a slower-than-normal heart rate, typically defined as fewer than 60 beats per minute. Some of which are discussed here:Sinus BradycardiaSinus bradycardia presents a heart rate lower than 60 beats per minute, with a regular rhythm originating from the SA node. The ECG typically shows normal P waves preceding each QRS complex, a normal PR interval (0.12 to 0.20 seconds), and a normal QRS duration (0.06 to 0.10 seconds).First-Degree AV...
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...


