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Related Concept Videos

Cardiovascular System Abnormal Findings II: Auscultation01:25

Cardiovascular System Abnormal Findings II: Auscultation

751
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:
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Electrocardiogram01:29

Electrocardiogram

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An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
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Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

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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...
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Heart Sounds01:15

Heart Sounds

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Heart sounds are generated by the turbulence in blood flow due to the closing of heart valves. These sounds are best perceived slightly away from the valves, where the blood flow disseminates the sound.
Auscultation is the process of listening to these internal body sounds using a stethoscope. The heart produces four types of sounds, but only two—S1 and S2—can usually be heard with a stethoscope.
S1, also known as the "lub" sound, is caused by the closure of atrioventricular (A-V)...
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Cardiomyopathy III: Hypertrophic Cardiomyopathy01:29

Cardiomyopathy III: Hypertrophic Cardiomyopathy

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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
627
Cardiovascular System Abnormal Findings I: Inspection and Palpation01:29

Cardiovascular System Abnormal Findings I: Inspection and Palpation

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In a cardiovascular examination, inspection and palpation are crucial for identifying abnormalities.
Abnormal findings observed during an inspection
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Heart Murmur in a Football Player With a Normal ECG.

A L Pipe, S P Camp

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    Summary
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    Sudden cardiac arrest in athletes can stem from hidden heart conditions. These serious cardiac anomalies may not be detected through standard electrocardiogram (ECG) or imaging tests.

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    Area of Science:

    • Cardiology
    • Sports Medicine
    • Medical Diagnostics

    Background:

    • Vigorous athletic activity can unmask underlying cardiac conditions.
    • Life-threatening cardiac anomalies pose a risk to athletes.
    • Standard diagnostic methods may not identify all cardiac abnormalities.

    Purpose of the Study:

    • To highlight the potential for serious cardiac anomalies in athletes.
    • To emphasize the limitations of ECG and radiographic studies in detecting certain cardiac abnormalities.

    Main Methods:

    • Case conference presentation.
    • Review of clinical presentation and diagnostic limitations.

    Main Results:

    • Cardiac abnormalities in athletes may be occult.
    • Electrocardiogram (ECG) and radiographic studies can be normal despite significant cardiac pathology.

    Conclusions:

    • Athletes with suspected cardiac issues require comprehensive evaluation beyond standard tests.
    • The possibility of life-threatening cardiac anomalies should be considered even with normal initial diagnostic findings.