Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Aortic Regurgitation I: Introduction01:15

Aortic Regurgitation I: Introduction

444
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...
444
Mitral Stenosis IV: Nursing Management01:27

Mitral Stenosis IV: Nursing Management

239
A comprehensive nursing assessment is essential for patients with valvular heart disease, which involves any dysfunction of the heart valves that could impact blood flow and overall heart function.Subjective Data Collection:Chief Complaint and Present Illness: Start with the patient's primary concerns, focusing on the onset, duration, and progression of cardiac symptoms such as dyspnea, fatigue, chest pain, and palpitations.Past Medical History: Collect detailed information on any previous...
239
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

423
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...
423
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

390
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...
390
Cardiovascular System Abnormal Findings II: Auscultation01:25

Cardiovascular System Abnormal Findings II: Auscultation

540
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:
540
Measurement of Blood Pressure01:17

Measurement of Blood Pressure

2.6K
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a...
2.6K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Global Trends and Forecast of Cardiovascular Diseases, Cancer, and Shared Risk Factors: Insights From the GBD 2021.

Journal of the American Heart Association·2025
Same author

Crosstalk analysis in quantum networks: detection and localization insights with photon counting OTDR.

Optics express·2025
Same author

VEGF-A cis-located SNPs on human chromosome 6 associated with VEGF-A plasma levels and survival in a coronary disease cohort.

BMC cardiovascular disorders·2025
Same author

Readmission rates of older patients (age >75 years) discharged within 48 hours of admission to the Acute Medical Unit, Norwich: observational study.

Future hospital journal·2019
Same author

CTCF genetic alterations in endometrial carcinoma are pro-tumorigenic.

Oncogene·2017
Same author

Correlation of visceral adipose tissue measured by Lunar Prodigy dual X-ray absorptiometry with MRI and CT in older men.

International journal of obesity (2005)·2016
Same journal

Assisted dying and the silencing of medicine's next generation.

Lancet (London, England)·2026
Same journal

Linguistic pragmatism: a woman with progressive abdominal pain in Thailand.

Lancet (London, England)·2026
Same journal

Medical compartmentalisation: a patient with chromosome 22q11.2 deletion syndrome in Japan.

Lancet (London, England)·2026
Same journal

[<sup>177</sup>Lu]Lu-edotreotide versus everolimus for gastroenteropancreatic neuroendocrine tumours (COMPETE): a phase 3, multicentre, randomised, open-label, superiority trial.

Lancet (London, England)·2026
Same journal

Research priorities for characterising Bundibugyo virus.

Lancet (London, England)·2026
Same journal

Rethinking treatment sequence in advanced gastroenteropancreatic neuroendocrine tumours.

Lancet (London, England)·2026
查看所有相关文章

相关实验视频

Updated: Jan 11, 2026

Author Spotlight: Development of a Minimally Invasive Large-Animal Model for Reliable and Reproducible Cardiovascular Research
06:51

Author Spotlight: Development of a Minimally Invasive Large-Animal Model for Reliable and Reproducible Cardiovascular Research

Published on: October 20, 2023

1.6K

在大动脉膜狭窄症中昏迷.

A M Richards, M G Nicholls, H Ikram

    Lancet (London, England)
    |November 17, 1984
    PubMed
    概括
    此摘要是机器生成的。

    大动脉狭窄的昏迷是由运动期间血压突然下降引起的. 这种反应与健康个体不同,涉及到反射血管扩张,而不是心律失常.

    更多相关视频

    Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
    12:17

    Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

    Published on: May 21, 2017

    11.8K
    Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance
    14:09

    Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance

    Published on: March 21, 2013

    21.6K

    相关实验视频

    Last Updated: Jan 11, 2026

    Author Spotlight: Development of a Minimally Invasive Large-Animal Model for Reliable and Reproducible Cardiovascular Research
    06:51

    Author Spotlight: Development of a Minimally Invasive Large-Animal Model for Reliable and Reproducible Cardiovascular Research

    Published on: October 20, 2023

    1.6K
    Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
    12:17

    Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

    Published on: May 21, 2017

    11.8K
    Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance
    14:09

    Tilt Testing with Combined Lower Body Negative Pressure: a "Gold Standard" for Measuring Orthostatic Tolerance

    Published on: March 21, 2013

    21.6K

    科学领域:

    • 心血管生理学心血管生理学
    • 临床医学 临床医学
    • 运动生理学 运动生理学

    背景情况:

    • 大动脉狭窄 (AS) 是一种可能导致昏迷的情况.
    • 在运动期间引发AS患者昏迷的确切机制尚不清楚.

    研究的目的:

    • 调查运动期间大动脉狭窄患者昏迷背后的生理机制.

    主要方法:

    • 在四名AS患者和六名健康志愿者中,对全身和肺动脉压和心率进行持续的门诊监测.
    • 渐进的亚最大运动测试以限制症状.

    主要成果:

    • 与对照人群相比,AS患者对运动的系统性动脉压反应呈现出形.
    • 运动期间发生的三次近同步发作的特征是系统性和肺动脉压力同时急性下降.
    • 在这些同步性发作期间没有检测到心律不整.

    结论:

    • 大动脉狭窄的运动诱导性昏迷主要是由急性反射外围动脉和静脉血管扩张驱动的.
    • 这种血管扩张可能是由左心室压力变化引起的,影响心室气质受体.
    • 了解这些机制对于管理AS患者的昏迷至关重要.