関連する実験動画

Updated: Aug 19, 2026

Reduction in Left Ventricular Wall Stress and Improvement in Function in Failing Hearts using Algisyl-LVR
07:24

Reduction in Left Ventricular Wall Stress and Improvement in Function in Failing Hearts using Algisyl-LVR

Published on: April 8, 2013

経口プロプラノロールの左心室のサイズおよび運動および急性圧力負荷中のパフォーマンスに対する効果

M H Crawford, J Lindenfeld, R A O'Rourke

    Circulation
    |March 1, 1980
    PubMed
    まとめ

    ベータブロッカーである経口プロプラノロールは,健康な個体では心臓筋のパフォーマンスを有意に低下させない. その主な効果は,特に運動中に,心拍数と血圧を低下させることです.

    さらに関連する動画

    Surgical Placement of Catheters for Long-term Cardiovascular Exercise Testing in Swine12:37

    Surgical Placement of Catheters for Long-term Cardiovascular Exercise Testing in Swine

    Published on: February 9, 2016

    Cardiac Response to β-Adrenergic Stimulation Determined by Pressure-Volume Loop Analysis08:05

    Cardiac Response to β-Adrenergic Stimulation Determined by Pressure-Volume Loop Analysis

    Published on: May 19, 2021

    関連する概念動画

    Regulation of Stroke Volume01:27

    Regulation of Stroke Volume

    The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
    Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
    Exercise and Cardiac Output01:17

    Exercise and Cardiac Output

    Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
    Sustained exercise increases the muscles' oxygen demand, which can be met...
    Aortic Regurgitation III: Medical Management01:25

    Aortic Regurgitation III: Medical Management

    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...
    Heart Failure II: Pathophysiology01:29

    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...