左心室合指数的预后值在接受过导管大动脉植入的患者中:一项前性心声学研究
Bingling Wu1, Tongtong Huang1, Decai Zeng1
1Department of Ultrasonic Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.
Quantitative imaging in medicine and surgery
|December 10, 2025
概括
左心室合指数 (LACI) 预测了跨导管大动脉植入 (TAVI) 后的心脏不良事件. 28%或更高的LACI表明TAVI患者心脏重大不良事件 (MACE) 的风险更高.
科学领域:
- 心脏病学 心脏病学
- 心血管成像 - 心血管成像
- 干预心脏病学 干预心脏病学
背景情况:
- 过导管大动脉植入 (TAVI) 是症状大动脉狭窄症的关键治疗方法.
- 手术前的左心室扩张功能对TAVI结果至关重要.
- 左心室合指数 (LACI) 是扩张功能的一个新型指标,但其在TAVI的预后作用尚不清楚.
研究的目的:
- 评估心声谱衍生的LACI在TAVI后预测主要心脏不良事件 (MACE) 的预后价值.
- 确定LACI是否可以在TAVI后识别患有MACE风险较高的患者.
主要方法:
- 一项前性研究包括148名接受TAVI治疗的患者.
- 术前心声检查评估了LACI (LAEDV/LVEDV),心房/心室功能,以及透静参数.
- 在TAVI后跟踪MACE (心律不整,心力衰竭,死亡率).
主要成果:
- 患有MACE的患者在手术前的LACI显著更高 (37.84±10.38比28.18±6.05,P<0.001).
- 多变量分析确定LACI是MACE的独立预测因子 (HR:1.16,P<0.001).
- 一个LACI值≥28%预测了可接受准确度的MACE.
结论:
- 在TAVI之后,LACI是MACE的独立风险因素.
- 升高的LACI (≥28%) 标志着TAVI患者患有心脏不良事件风险增加.
更多相关视频
相关概念视频
Mitral Stenosis II: Clinical features and Diagnostic Tests
194
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...
194
Mitral Regurgitation II: Clinical Features and Diagnostic Tests
330
Mitral regurgitation (MR) is a valvular heart disorder in which the mitral valve fails to close tightly, allowing blood to leak backward into the heart. Understanding the clinical manifestations, assessment, diagnostic findings, and medical management of MR is crucial to effectively managing affected patients.Clinical Manifestations of Mitral RegurgitationMitral regurgitation can be acute or chronic, each presenting differently and requiring different approaches:1. Acute Mitral...
330
Acute Coronary Syndrome III: Diagnostic Studies
197
Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
197
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
375
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...
375
Cardiac Catheterization III: Left Heart Catheterization
526
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...
526
Mitral Valve Prolapse II: Assessment and Management
380
IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular...
380


