跨导管大动脉置换后大动脉狭窄的不同流量梯度模式的结果和预测因素
Besir Besir1, Shivabalan Kathavarayan Ramu1, Maryam Muhammad Ali Majeed-Saidan1
1Departments of Cardiovascular Medicine.
The American journal of cardiology
|January 24, 2025
概括
经典的低流量低梯度大动脉狭窄症 (C-LFLG AS) 与跨导管大动脉置换 (TAVR) 后的死亡率较高有关. 男性性别和并发症预测C-LFLGAS,而并发症预测该组的死亡率.
科学领域:
- 心脏病学 心脏病学
- 心脏外科手术 心脏外科手术
- 医学诊断 医学诊断 医学诊断
背景情况:
- 大动脉狭窄 (AS) 呈现出不同的血液动力学模式,包括高梯度 (HG),经典低流低梯度 (C-LFLG) 和正常流低梯度 (NFLG) AS.
- 了解与这些AS亚型相关的临床因素和透气管后大动脉置换 (TAVR) 结果对于患者管理至关重要.
研究的目的:
- 为了确定与C-LFLG AS和NFLG AS相关的临床因素,与HG AS相比.
- 通过不同的AS流梯度模式来比较TAVR后的临床和心声学结果.
- 为了确定C-LFLG AS人口中TAVR后死亡率的预测因素.
主要方法:
- 这是一项对1415名患有严重AS的患者进行的回顾性单中心研究.
- 将其分为HG AS (平均梯度>40 mm Hg),C-LFLG AS (平均梯度<40 mm Hg,冲击体积指数<35 ml/m2,LVEF <50%),以及NFLG AS (平均梯度<40 mm Hg,冲击体积指数≥35 ml/m2,LVEF ≥50%).
- 对C-LFLG AS预测因子的逻辑回归;对C-LFLG AS死亡预测因子的Cox回归.
主要成果:
- 男性性别,多种并发症和中度至重度的 mitra/tricuspid 吐与C-LFLG AS相关.
- 与HG AS相比,C-LFLG AS患者在TAVR后的2年死亡率较高.
- 与HG AS患者相比,NFLG AS患者在TAVR后的1年和2年死亡率相似,并且比HG AS患者高.
- 末期病,心房动和并发症预测C-LFLGAS患者的2年死亡率.
结论:
- 患有C-LFLG AS的患者在TAVR后的死亡率高于患有HG AS的患者.
- 男性性别和多种并发症是发展C-LFLG AS的重要预测因素.
- 多种并发症独立预测TAVR后C-LFLGAS人群的死亡率.
相关概念视频
Mitral Stenosis I: Introduction
1.8K
Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
1.8K
Aortic Regurgitation I: Introduction
1.6K
IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
1.6K
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
1.2K
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...
1.2K
Aortic Regurgitation IV: Nursing Management
453
A nurse managing a patient with aortic regurgitation begins with a comprehensive assessment, including a review of the patient's medical history, family history, and lifestyle factors. During the cardiac examination, the nurse listens for heart sounds and checks for signs of valve abnormalities. The nurse also observes for symptoms such as dyspnea, orthopnea, and paroxysmal nocturnal dyspnea and assesses the patient's endurance and daily activity tolerance.Based on the findings, the nurse...
453


