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Related Concept Videos

Imbalances in Cardiac Output01:26

Imbalances in Cardiac Output

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The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
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Regulation of Stroke Volume01:27

Regulation of Stroke Volume

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The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
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Cardiac Output II: Effect of Stroke Volume on Cardiac Output01:22

Cardiac Output II: Effect of Stroke Volume on Cardiac Output

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Cardiac output (CO), the amount of blood the heart pumps per minute, is a parameter in cardiovascular physiology determined by stroke volume and heart rate. Stroke volume, the amount of blood pushed from one of the ventricles per heartbeat, is influenced by preload, afterload, and contractility.
Preload
Preload refers to the initial elongation of the cardiac myocytes before contraction and is related to the volume of blood filling the heart at the end of diastole, or end-diastolic volume. The...
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Imaging Studies for Cardiovascular System III: X-Ray01:20

Imaging Studies for Cardiovascular System III: X-Ray

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The most common cardiovascular diagnostic test is an X-ray. It produces images of the heart, blood vessels, and adjacent structures.
Definition and Purpose
An X-ray, or radiograph, is a non-invasive method that uses ionizing radiation to take images of internal structures. It is mainly used in cardiac imaging to examine the heart, lungs, and major blood vessels, aiming to identify abnormalities in the heart's size, shape, and position, such as heart failure, congenital defects, and vascular...
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Respiratory Volumes01:15

Respiratory Volumes

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Respiratory volumes are crucial metrics, meticulously measured to quantify the air exchanged in and out of the lungs during various phases of the breathing cycle. These precise measurements are vital for assessing lung function, diagnosing respiratory conditions, and monitoring overall respiratory health. Each parameter provides specific insights into the mechanics of breathing and the functional capacity of the lungs.
Tidal Volume (TV) Tidal volume (TV) is the air inhaled or exhaled in a...
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Exercise and Cardiac Output01:17

Exercise and Cardiac Output

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Regular physical activity is essential for maintaining cardiovascular health, with aerobic exercises being particularly effective. According to the American Heart Association, 150 minutes of moderate to intense aerobic exercise per week is recommended for a healthy heart. Aerobic activities may include brisk walking, running, bicycling, cross-country skiing, and swimming, ideally performed three to five times per week.
Sustained exercise increases the muscles' oxygen demand, which can be...
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Rediscovering digitalis in heart failure with reduced ejection fraction: Current evidence and expert survey on contemporary use.

Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology·2026
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Pre-liver transplant assessment of patients with acute-on-chronic liver failure: An international survey.

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Overcoming diagnostic challenges in constrictive pericarditis: why volume is important?

Bárbara Lacerda Teixeira1, Francisco Albuquerque2, Isabel Cardoso2

  • 1Cardiology Department, Hospital de Santa Marta, Centro Hospitalar Universitário de Lisboa Central, Rua de Santa Marta N.º 50, Lisbon, 1169-024, Portugal. barbara.g.l.teixeira@gmail.com.

The International Journal of Cardiovascular Imaging
|August 31, 2024
PubMed
Summary

Constrictive pericarditis (CP) diagnosis in a liver disease patient was challenging due to diuretic use. Cardiac MRI after stopping diuretics confirmed CP, enabling successful treatment and improved liver function.

Keywords:
Cardiac magnetic resonanceChronic liver diseaseConstrictive pericarditisMultimodality ImagingRight heart catheterization

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Area of Science:

  • Cardiology
  • Hepatology
  • Medical Imaging

Background:

  • A 65-year-old male with chronic liver disease and refractory ascites presented diagnostic challenges.
  • Constrictive pericarditis (CP) was suspected during liver transplant evaluation.
  • Initial diagnostic attempts were confounded by diuretic-induced fluid status alterations.

Purpose of the Study:

  • To investigate the diagnostic utility of multimodality imaging in a complex case of suspected constrictive pericarditis.
  • To highlight the importance of optimizing volume status for accurate CP diagnosis.
  • To report a case of successful pericardiectomy in a patient with co-existing liver disease.

Main Methods:

  • Clinical evaluation of a patient with chronic liver disease and ascites.
  • Diagnostic imaging, including cardiac magnetic resonance (CMR), was employed.
  • Diuretic therapy was temporarily suspended to aid diagnosis.
  • Surgical pericardiectomy was performed following diagnosis.

Main Results:

  • Initial diagnostic workup was inconclusive due to overdiuresis.
  • Cardiac MRI, performed after diuretic cessation, definitively confirmed constrictive pericarditis.
  • Successful pericardiectomy led to normalization of liver function.
  • The case underscores the critical role of volume status management and imaging in diagnosing CP.

Conclusions:

  • Accurate diagnosis of constrictive pericarditis can be obscured by aggressive diuresis in patients with liver disease.
  • Cardiac magnetic resonance is a valuable tool for diagnosing constrictive pericarditis, especially when other methods are inconclusive.
  • Management of fluid balance is crucial for successful diagnosis and treatment of constrictive pericarditis in this patient population.