相关实验视频

Updated: Jul 13, 2026

Echocardiographic Assessment of Cardiac Anatomy and Function in Adult Rats
08:09

Echocardiographic Assessment of Cardiac Anatomy and Function in Adult Rats

Published on: December 13, 2019

在大动脉膜疾病中对左心室功能的心声评估

I G McDonald

    Circulation
    |May 1, 1976
    PubMed
    概括

    心声扫描揭示了主动脉疾病中明显的左心室变化. 狭窄的压力过载会增加壁的厚度,而排泄会导致扩张和收缩的减少,除了急性病例.

    更多相关视频

    Biventricular Assessment of Cardiac Function and Pressure-Volume Loops by Closed-Chest Catheterization in Mice08:21

    Biventricular Assessment of Cardiac Function and Pressure-Volume Loops by Closed-Chest Catheterization in Mice

    Published on: June 15, 2020

    Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography07:11

    Morphological and Functional Assessment of the Right Ventricle Using 3D Echocardiography

    Published on: October 28, 2020

    相关概念视频

    Assessment of the Cardiovascular System IV: Auscultation01:25

    Assessment of the Cardiovascular System IV: Auscultation

    Cardiac auscultation is a clinical skill used to assess heart function and detect abnormalities. It involves listening to heart sounds at specific anatomical locations through a stethoscope.
    Normal Heart Sounds
    S1 (First Heart Sound)-
    S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
    S2 (Second Heart Sound)-
    S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
    Cardiovascular System Abnormal Findings II: Auscultation01:25

    Cardiovascular System Abnormal Findings II: Auscultation

    Auscultation, an essential part of a heart examination, is done using a stethoscope. It provides crucial information about heart function and possible heart problems. Due to heart problems, abnormal sounds can be heard during systole or diastole. These sounds include S3 and S4 gallops, opening snaps, systolic clicks, and murmurs.
    Abnormal Heart Sounds
    Gallops:
    Cardiac Catheterization III: Left Heart Catheterization01:24

    Cardiac Catheterization III: Left Heart Catheterization

    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...
    Mitral Regurgitation II: Clinical Features and Diagnostic Tests01:23

    Mitral Regurgitation II: Clinical Features and Diagnostic Tests

    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...
    Mitral Stenosis II: Clinical features and Diagnostic Tests01:23

    Mitral Stenosis II: Clinical features and Diagnostic Tests

    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...
    Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

    Aortic Regurgitation II: Clinical Features and Diagnostic Tests

    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...