运动诱导的手腕关节脉冲波速在跨导管大动脉置换前后发生变化
Ayano Osawa1, Hiroki Ikenaga2, Atsushi Kuraishi1
1Department of Cardiovascular Medicine, Hiroshima University Graduate School of Biomedical and Health Sciences, 1-2-3 Kasumi, Hiroshima, Minami-ku, 734-8551, Japan.
Heart and vessels
|August 18, 2025
概括
过导管大动脉置换 (TAVR) 急剧增加了动脉硬度,通过手足脚脉冲波速率 (baPWV) 测量. 然而,运动压力测试显示TAVR后血管内皮功能得到改善,如下降的baPWV所示.
科学领域:
- 心血管医学 心血管医学
- 血管生理学 血管生理学
- 干预心脏病学 干预心脏病学
背景情况:
- 动脉硬度升高是一个重要的心血管风险因素.
- 腕脉冲波速度 (baPWV) 量化动脉硬性,并受到血管内皮功能的影响.
- 过导管大动脉置换 (TAVR) 是对严重大动脉狭窄的治疗方法,其对动脉硬的影响,特别是在压力下,需要进一步调查.
研究的目的:
- 为了评估在休息时和运动压力期间在TAVR之前和之后的baPWV的变化.
- 通过简单的运动应力测试来评估TAVR对血管内皮功能的影响.
主要方法:
- 招募了40名患有严重症状大动脉狭窄症的患者,接受TAVR治疗.
- 在基线和TAVR后,baPWV是在休息状态下测量,并在简单的腿部运动方案 (脚部和背部曲) 后立即测量.
- 统计分析比较了休息和运动后的baPWV在TAVR之前和之后.
主要成果:
- 在TAVR后,休息和运动压力baPWV显著增加.
- 在TAVR之前,运动后的baPWV与休息的baPWV相比没有显著的变化.
- 在TAVR后,与休息时的baPWV相比,运动后的baPWV显著下降,这表明内皮功能有所改善.
结论:
- TAVR急剧增加动脉硬性,通过更高的休息和运动 baPWV证明了这一点.
- 在TAVR后的运动压力测试表明血管内皮功能得到保护或改善,该功能在手术前被大动脉狭窄掩盖.
相关概念视频
01:22Aortic Regurgitation II: Clinical Features and Diagnostic Tests
52
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...
52
01:21Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
34
Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
34
01:23Assessment of blood pressure in brachial artery(two-step method)
900
Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
900
01:25Aortic Regurgitation III: Medical Management
42
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...
42
01:22Aneurysm IV: Nursing Management
20
Vigilant monitoring for aneurysm rupture is essential for patients undergoing aortic surgery.Preoperative Nursing ManagementContinuously monitor the patient for manifestations of aneurysm rupture, such as pallor, weakness, tachycardia, hypotension, abdominal, back, groin, or periumbilical pain, changes in consciousness, and a pulsating abdominal mass. Regularly assess the patient's peripheral pulses.Instruct the patient to consume a clear liquid diet the day before surgery and administer...
20