在患有心房的患者中,休息和压力导致左心房功能障碍
Angela Zagatina1, Maria Rivadeneira Ruiz2, Quirino Ciampi3
1Cardiology Department, Research Scientific Cardiocenter "Medika", 197110 St. Petersburg, Russia.
Journal of clinical medicine
|September 28, 2023
概括
左心房扩张和功能障碍在与心房动 (AF) 相关的慢性冠状动脉综合征中很常见,随着AF的严重程度而恶化. 压力心声扫描揭示了这些问题,将它们与增加的肺堵塞联系起来.
科学领域:
- 心脏病学 心脏病学
- 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
- 耳前的研究研究研究.
背景情况:
- 左心房 (LA) 肌病症在慢性冠状动脉综合征 (CCS) 与心房动 (AF) 中很常见.
- 在休息状态下,LA功能障碍可能是隐藏的,在压力时才会显现出来.
- 了解CCS-AF中的LA变化对于风险分层至关重要.
研究的目的:
- 评估慢性冠状动脉综合征 (CCS) 患者在休息和压力期间的左心房 (LA) 体积和功能.
- 为了评估这些参数在整个心房的频谱 (AF),从鼻节奏到永久的AF.
- 为了将LA变化与诱导性缺血和肺堵塞在应力心声图期间相关联.
主要方法:
- 对3042名已知或怀疑患有CCS的患者进行了前性多中心观察研究.
- 患者被分为鼻腔节律 (SR),SR与先前的阳性肌痛,和永久性肌痛组.
- 进行压力回声心电图 (SE),测量左心房体积指数 (LAVI) 和 LA 应变储阶段 (LASr).
主要成果:
- 左心房体积指数 (LAVI) 从SR显著增加到永久的AF组,无论是在休息状态还是应激状态.
- 在整个AF频谱中,拉氏菌株储存阶段 (LASr) 逐渐下降,表明功能受损.
- 压力诱导的B线 (肺堵塞) 和可诱导性缺血在AF患者中更为频繁.
结论:
- 休息和压力左心房扩张和储功能障碍在CCS患者中普遍存在,特别是永久性AF.
- 这些LA异常与压力期间诱导性缺血和肺堵塞的增加有关.
- 压力心声图对于检测CCS-AF患者隐藏的LA功能障碍非常有价值.
相关概念视频
01:25ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias
33
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...
33
01:28Disturbances in Heart Rhythm
997
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...
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...
997
01:30Dysrhythmias V: Evaluating Dysrhythmias
41
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...
41
01:25Aortic Regurgitation III: Medical Management
24
Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
24
01:22Aortic Regurgitation II: Clinical Features and Diagnostic Tests
23
Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
23
01:18Dysrhythmias IV: Characteristics of Bradyarrhythmias
11
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...
11