相关实验视频
Updated: Jul 19, 2026

10:53
Ultrasonic Assessment of Myocardial Microstructure
Published on: January 14, 2014
5.4K
转氨基氨基酸心肌病症在患者中,左心室壁厚度不明原因增加
Katarzyna Holcman1,2, Magdalena Kostkiewicz3,4, Wojciech Szot4,5
1Department of Cardiac and Vascular Diseases, Jagiellonian University Medical College, John Paul II Hospital, Pradnicka 80, 31-202, Krakow, Poland. katarzyna.holcman@gmail.com.
The international journal of cardiovascular imaging
|June 10, 2024
概括
晶氨基粉症 (ATTR) 心肌病比以前认为的更常见,患有无法解释的左心室壁加厚的患者. 早期诊断对于管理这种情况至关重要.
科学领域:
- 心脏病学 心脏病学
- 心血管成像 - 心血管成像
- 氨基粉症研究研究
背景情况:
- 粉样性心肌病 (CA) 在历史上被认为是罕见的.
- 影像学的进步增加了CA诊断频率.
- 晶氨基粉症 (ATTR) 是一种关键的CA类型.
研究的目的:
- 为了确定CA的患病率,特别是ATTR,在没有解释的增加左心室 (LV) 壁厚度的患者中.
- 在这个人群中确定与ATTR相关的临床和成像特征.
主要方法:
- 预计将招募100名成年人,这些成年人患有无法解释的LV壁厚增加 (2020-2022年).
- 综合分析包括临床数据,心电图,心声学,SPECT/CT和遗传检测.
- 使用LOGIT和多变量模型进行统计分析,以确定ATTR的预测因子.
主要成果:
- 18%的患者被诊断为CA (5%的轻链,12%的ATTR).
- 许多与ATTR相关的因素,包括年龄,多神经病变和特定的心声回声学发现 (LV质量,GLS,RV厚度).
- 使用LV质量,GLS和RV厚度的预测模型实现了ATTR诊断的AUC为0.99.
结论:
- 很大一部分患有不明原因的 LV 壁加厚的患者有潜在的 CA,特别是 ATTR.
- 在患有 LV 质量增加,全球纵向应变减少和右心室厚度增加的患者中,应该怀疑 ATTR .
- 这凸显了在未解释的 LV 缩中考虑 CA 的重要性.
相关概念视频
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...
Cardiomyopathy I: Introduction and Classification
Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
Cardiomyopathy II: Dilated Cardiomyopathy
Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
Cardiomyopathy III: Hypertrophic Cardiomyopathy
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...
Cardiomyopathy IV: Restrictive Cardiomyopathy
Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
Cardiomyopathy V: Interprofessional Care
Managing cardiomyopathy involves addressing underlying or precipitating causes, treating heart failure with medications, and implementing dietary changes and a balanced exercise and rest regimen.Lifestyle ModificationsCardiomyopathy patients should adopt a low-sodium diet to reduce fluid retention and manage heart failure. A personalized exercise and rest plan helps maintain physical fitness without overstraining the heart. Avoiding alcohol and tobacco is essential to prevent further damage to...

