Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

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

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
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

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
Same journal

Dual mobility total hip replacement in fractures: stability promotes patient confidence.

Lancet (London, England)·2026
Same journal

Dual mobility versus standard cups in total hip replacement for displaced femoral neck fractures (Duality): an international, multicentre, randomised, controlled, superiority trial.

Lancet (London, England)·2026
関連記事をすべて見る

関連する実験動画

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

大動脈弁の狭窄症のシンコープ

A M Richards, M G Nicholls, H Ikram

    Lancet (London, England)
    |November 17, 1984
    PubMed
    まとめ
    この要約は機械生成です。

    大動脈狭窄におけるは,運動中に突然の血圧低下によって引き起こされます. この反応は,健康な個体とは異なり,心律不整ではなく,反射的血管拡張を伴う.

    さらに関連する動画

    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

    関連する実験動画

    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

    科学分野:

    • 心血管生理学 心血管の生理学
    • クリニカル・メディシン 臨床医学
    • 運動生理学 運動生理学

    背景:

    • 大動脈狭窄症 (AS) は,失眠につながる可能性がある状態です.
    • 運動中にAS患者で昏睡を誘発する正確なメカニズムは不明である.

    研究 の 目的:

    • 運動中の大動脈狭窄症の患者におけるシンコプの基礎となる生理学的メカニズムを調査する.

    主な方法:

    • 4人のAS患者と6人の健康なボランティアの全身的および肺動脈血圧および心拍数の継続的な外来モニタリング.
    • 症状の制限までの段階的なサブマキシマル運動テスト.

    主要な成果:

    • ASの患者は,対照群と比較して,運動に対する全身動脈圧の反応が鈍化した.
    • 運動中に発生した3回のほぼ同期性エピソードは,全身および肺動脈動脈圧の同時急激な低下によって特徴付けられました.
    • これらのシンコパルのエピソードの間,心臓発作異常は検出されなかった.

    結論:

    • 大動脈狭窄における運動誘発性昏睡は,主に急性反射外周動脈および静脈の血管拡張によって引き起こされます.
    • この血管拡張は,心室の気球受容体に影響する左心室圧力の変化によって引き起こされる可能性があります.
    • これらのメカニズムの理解は,AS患者のシンコープの管理に不可欠です.