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  2. Electrocardiography - Wikipedia

    en.wikipedia.org/wiki/Electrocardiography

    Electrocardiography is the process of producing an electrocardiogram (ECG or EKG [a]), a recording of the heart's electrical activity through repeated cardiac cycles. [4] It is an electrogram of the heart which is a graph of voltage versus time of the electrical activity of the heart [ 5 ] using electrodes placed on the skin.

  3. Cardiology diagnostic tests and procedures - Wikipedia

    en.wikipedia.org/wiki/Cardiology_diagnostic...

    Electrocardiography (ECG/EKG in German vernacular. Elektrokardiogram) monitors electrical activity of the heart, primarily as recorded from the skin surface. A 12 lead recording, recording the electrical activity in three planes, anterior, posterior, and lateral is the most commonly used form.

  4. Left bundle branch block - Wikipedia

    en.wikipedia.org/wiki/Left_bundle_branch_block

    Left bundle branch block (LBBB) is a conduction abnormality in the heart that can be seen on an electrocardiogram (ECG). [1] In this condition, activation of the left ventricle of the heart is delayed, which causes the left ventricle to contract later than the right ventricle.

  5. 8 Common Cardiovascular Diseases for Men & How to Prevent Them

    www.aol.com/8-common-cardiovascular-diseases-men...

    Heart disease and cardiovascular disease have almost the same meaning. ... Your doctor may order many different tests to help diagnose cardiovascular disease, such as: Electrocardiogram (ECG ...

  6. Hypertrophic cardiomyopathy - Wikipedia

    en.wikipedia.org/wiki/Hypertrophic_cardiomyopathy

    Screen-positive individuals who are diagnosed with cardiac disease are usually told to avoid competitive athletics. [43] HCM can be detected with an echocardiogram (ECHO) with 80%+ accuracy, [44] which can be preceded by screening with an electrocardiogram (ECG) to test for heart abnormalities.

  7. Left axis deviation - Wikipedia

    en.wikipedia.org/wiki/Left_axis_deviation

    The hexaxial reference system is a diagram that is used to determine the heart's electrical axis in the frontal plane. In electrocardiography , left axis deviation (LAD) is a condition wherein the mean electrical axis of ventricular contraction of the heart lies in a frontal plane direction between −30° and −90°.

  8. 9 Weird Symptoms Cardiologists Say You Should Never Ignore

    www.aol.com/lifestyle/9-weird-symptoms...

    Unlike a sudden cardiac event—say, a heart attack—valvular disease develops slowly, over five to 10 years. Many patients don’t experience symptoms until later in the course of disease, if at ...

  9. Ventricular tachycardia - Wikipedia

    en.wikipedia.org/wiki/Ventricular_tachycardia

    Ventricular tachycardia can occur due to coronary heart disease, aortic stenosis, cardiomyopathy, electrolyte imbalance, or a heart attack. [2] [3] Diagnosis is by an electrocardiogram (ECG) showing a rate of greater than 120 beats per minute and at least three wide QRS complexes in a row. [2]

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