Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Blood Studies for Cardiovascular System I: Cardiac Biomarkers01:20

Blood Studies for Cardiovascular System I: Cardiac Biomarkers

332
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
332
Acute Coronary Syndrome III: Diagnostic Studies01:30

Acute Coronary Syndrome III: Diagnostic Studies

23
Diagnosing acute coronary syndrome or ACS begins with a thorough patient history. Notable symptoms include central, crushing chest pain radiating to the left arm, neck, jaw, or back, along with shortness of breath, sweating (diaphoresis), nausea, vomiting, dizziness, and palpitations.It is crucial to note any history of cardiac illnesses and assess risk factors, including age, gender, smoking, hypertension, diabetes, hyperlipidemia, and a sedentary lifestyle.During physical examination, vital...
23
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

71
Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...
71
Myocarditis II: Clinical Features and Diagnostic Tests01:27

Myocarditis II: Clinical Features and Diagnostic Tests

20
Myocarditis is an inflammation of the heart muscle. The symptoms vary widely, encompassing asymptomatic presentations to severe, acute manifestations.Clinical PresentationAsymptomatic cases: In some instances, myocarditis may be asymptomatic, with the infection resolving without intervention. These cases often go undetected unless discovered incidentally through diagnostic imaging or tests conducted for other reasons.General Early Symptoms: Early symptoms of myocarditis are non-specific and can...
20
Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations01:19

Acute Coronary Syndrome II: Pathophysiology and Clinical Manifestations

45
The pathophysiology of Acute Coronary Syndrome [ACD] involves several key processes:The main underlying cause of ACD is atherosclerosis, a chronic inflammatory disease characterized by the buildup of lipid-laden plaques within the coronary arteries.As the atherosclerotic plaque grows in the coronary artery, it may become unstable due to the formation of a lipid-rich core and a thin fibrous cap. Inflammatory cells within the plaque, such as macrophages, secrete enzymes that degrade the...
45
Pericarditis II: Clinical Features and Diagnostic Tests01:19

Pericarditis II: Clinical Features and Diagnostic Tests

20
Pericarditis is distinguished by inflammation of the pericardium, the fibrous sac that encases the heart. It can be acute, lasting less than six weeks, or chronic, persisting for over three months. Understanding its clinical manifestations and diagnostic findings is crucial for timely and effective management.Clinical ManifestationsWhile pericarditis can be asymptomatic, it usually presents with characteristic symptoms such as:Chest Pain: The most characteristic symptom of pericarditis is chest...
20

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

The First 1000 Critical Days: Determinants of Adverse Birth Outcomes in the Sari Birth Cohort, Iran.

International journal of preventive medicine·2026
Same author

Mortality patterns of the ten leading causes of cardiovascular diseases in Northern Iran: a joinpoint regression analysis (2011-2023).

BMC public health·2026
Same author

Plastic Versus Cotton Caps for Preventing Hypothermia in Very Preterm Infants: A Randomized Clinical Trial.

Turkish archives of pediatrics·2026
Same author

Inhibitory Effect of Terminalia chebula Retz. on MDR Shigella flexneri Invasion of HeLa Cells.

Infectious disorders drug targets·2026
Same author

Evaluation of the Efficacy and Safety of the Addition of Lacosamide to Duloxetine in the Treatment of Taxane-induced Peripheral Neuropathy: A Randomized Double-Blind Placebo-Controlled Trial.

Journal of research in pharmacy practice·2026
Same author

Supportive care needs and associated factors among reproductive age women with breast cancer.

Scientific reports·2026

Video Experimental Relacionado

Updated: Sep 9, 2025

Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training
07:40

Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training

Published on: October 10, 2019

7.4K

La asociación entre la positividad de la troponina y los resultados clínicos adversos, los hallazgos

Maryam Nabati1, Mohammad Ali Abedini2, Soheil Azizi3

  • 1Department of Cardiology, Faculty of Medicine, Cardiovascular Research Center, Mazandaran University of Medical Sciences, Sari, Iran. Dr.Mr.Nabati@Gmail.com.

BMC cardiovascular disorders
|September 1, 2025
PubMed
Resumen

Los niveles elevados de troponina en pacientes con COVID-19 indican un mayor riesgo de enfermedad grave, disfunción cardíaca y aumento de la mortalidad. Este hallazgo destaca la troponina como un marcador pronóstico clave en los pacientes hospitalizados con COVID-19.

Palabras clave:
Infarto agudo del miocardioEl COVID-19Las enfermedades cardiovascularesEl coronavirusLa mortalidadLa troponina

Más Videos Relacionados

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

24.4K
Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
12:45

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

10.6K

Videos de Experimentos Relacionados

Last Updated: Sep 9, 2025

Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training
07:40

Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training

Published on: October 10, 2019

7.4K
A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis
18:11

A Research Method For Detecting Transient Myocardial Ischemia In Patients With Suspected Acute Coronary Syndrome Using Continuous ST-segment Analysis

Published on: December 28, 2012

24.4K
Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
12:45

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

10.6K

Área de la Ciencia:

  • Cardiología
  • Enfermedades infecciosas
  • Medicina de cuidados intensivos

Sus antecedentes:

  • La elevación de la troponina-I en el COVID-19 es multifactorial, con una investigación limitada sobre su correlación con los hallazgos ecocardiográficos.
  • Investigar el impacto de COVID-19 en la lesión del miocardio, indicado por los niveles de troponina, es crucial para comprender los resultados de los pacientes.

Objetivo del estudio:

  • Evaluar los efectos clínicos y paraclínicos del COVID-19 en la lesión del miocardio, utilizando los niveles de troponina como indicador.
  • Evaluar la asociación entre el aumento de la troponina, los hallazgos ecocardiográficos y los resultados hospitalarios / de tres meses en pacientes hospitalizados con COVID-19.

Principales métodos:

  • Un estudio de cohorte histórico incluyó a 161 pacientes hospitalizados con COVID-19 (2021-2022), divididos en grupos con troponina positiva (n=72) y con troponina negativa (n=89).
  • Se realizaron pruebas diarias de laboratorio y ecocardiografía transtorácica para evaluar los parámetros cardíacos y los marcadores inflamatorios.

Principales resultados:

  • El grupo positivo en troponina exhibió una mayor prevalencia de antecedentes de enfermedad cardiovascular, aumento de azúcar en la sangre, recuento de glóbulos blancos, BUN y creatinina.
  • La ecocardiografía reveló un aumento del agrandamiento de LV, disfunción sistólica de LV, disfunción sistólica de RV, hipertensión pulmonar y regurgitación mitral en el grupo positivo a troponina.
  • Los pacientes positivos a la troponina presentaron una mortalidad a los tres meses significativamente mayor (23,1% frente a 5,8%) y una probabilidad de muerte 6,6 veces mayor.

Conclusiones:

  • Los niveles elevados de troponina en pacientes con COVID-19 se asocian con un aumento de la gravedad de la enfermedad.
  • La elevación de la troponina se correlaciona con una disfunción ventricular izquierda y derecha significativa, hipertensión pulmonar y mayor riesgo de mortalidad.
  • La troponina sirve como un marcador pronóstico valioso para los resultados adversos en pacientes hospitalizados con COVID-19.