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Cystic Fibrosis: Pathogenesis01:23

Cystic Fibrosis: Pathogenesis

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Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
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Cystic Fibrosis: Management01:24

Cystic Fibrosis: Management

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Cystic fibrosis (CF) is an autosomal recessive disorder that predominantly affects individuals of Northern European descent, occurring at a rate of 1 in 3500. It is caused by a genetic mutation in a gene on chromosome 7, most commonly the ΔF508 mutation, that codes for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. This results in thicker mucus secretions and obstruction pathologies in multiple organs, including the lungs and sinuses.
Sinus disease and chronic...
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ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias01:25

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Arrhythmia is a condition characterized by an irregular heart rhythm, with ECG changes that differ based on its origin and nature. The types of arrhythmias discussed below include atrial, junctional, and ventricular arrhythmias.Atrial ArrhythmiasPremature Atrial Complexes (PACs): PACs are early atrial beats caused by stress, caffeine, alcohol, electrolyte imbalances, hypoxia, hyperthyroidism, or certain medications (e.g., bronchodilators and decongestants). The ECG shows early P waves with an...
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Lung Capacity01:47

Lung Capacity

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The air in the lungs is measured in volumes and capacities. Lung volume measures reflect the amount of air taken in, released, or left over after a lung function, like a single inhalation. Lung capacity measures are sums of two or more lung volume measures.
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Anatomy of the Heart01:27

Anatomy of the Heart

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The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle.
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Video Experimental Relacionado

Updated: Jan 31, 2026

Induction of Right Ventricular Failure by Pulmonary Artery Constriction and Evaluation of Right Ventricular Function in Mice
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Induction of Right Ventricular Failure by Pulmonary Artery Constriction and Evaluation of Right Ventricular Function in Mice

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Fibrosis ventricular derecha

Stine Andersen1, Jens Erik Nielsen-Kudsk1, Anton Vonk Noordegraaf2

  • 1Aarhus University Hospital, Denmark (S.A., J.E.N.-K).

Circulation
|January 8, 2019
PubMed
Resumen
Este resumen es generado por máquina.

La fibrosis ventricular derecha (RV) en la hipertensión pulmonar (PH) tiene una doble función: puede ser adaptativa, evitando la dilatación de la RV, pero también desadaptativa, deteriorando la función de la RV y conduciendo a la falla. Se necesita más investigación para aclarar su impacto exacto.

Palabras clave:
Fibrosis en el cuerpohipertensión pulmonarel ventrículo derecho

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Área de la Ciencia:

  • Cardiología
  • Medicina de los pulmones
  • Patología

Sus antecedentes:

  • La fibrosis ventricular derecha está implicada en el desarrollo de la insuficiencia ventricular en la hipertensión pulmonar.
  • La red de colágeno de la matriz extracelular puede influir en la dilatación de RV bajo sobrecarga de presión.
  • La hipertensión arterial pulmonar idiopática (IPAH) y el PH tromboembólico crónico (CTEPH) sirven como modelos para estudiar los efectos de la sobrecarga de presión en el RV.

Objetivo del estudio:

  • Revisar la evidencia clínica de la fibrosis por RV en la HIPT y la HCTEC.
  • Para explorar la relación entre la fibrosis RV y la función RV.
  • Para analizar la importancia clínica de la fibrosis RV en pacientes con PH.

Principales métodos:

  • Revisión de la evidencia clínica y de los datos experimentales sobre la fibrosis por RV en PH.
  • Análisis de correlación entre la fibrosis RV y la función RV.
  • Discusión de estrategias terapéuticas y técnicas de cuantificación para la fibrosis RV.

Principales resultados:

  • La fibrosis RV presenta una doble función en las RV sobrecargadas por presión en IPAH y CTEPH.
  • Actúa como una respuesta adaptativa para evitar el estiramiento excesivo de los cardiomiocitos y mantener la forma de RV.
  • También actúa como una respuesta de mala adaptación, aumentando la rigidez y alterando la función miocárdica.

Conclusiones:

  • La fibrosis RV tiene un papel complejo y dual en la fisiopatología de la PH.
  • Comprender este papel es crucial para el desarrollo de terapias dirigidas.
  • Se necesitan técnicas de cuantificación mejoradas para dilucidar el vínculo causal entre la fibrosis RV y la función RV.