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  2. Second-degree atrioventricular block - Wikipedia

    en.wikipedia.org/wiki/Second-degree_atrio...

    Avoidance of AV-nodal-blocking medication, pacemaker. Second-degree atrioventricular block (AV block) is a disease of the electrical conduction system of the heart. It is a conduction block between the atria and ventricles. The presence of second-degree AV block is diagnosed when one or more (but not all) of the atrial impulses fail to conduct ...

  3. Atrioventricular block - Wikipedia

    en.wikipedia.org/wiki/Atrioventricular_block

    Specialty. Cardiology. Atrioventricular block ( AV block) is a type of heart block that occurs when the electrical signal traveling from the atria, or the upper chambers of the heart, to ventricles, or the lower chambers of the heart, is impaired. Normally, the sinoatrial node (SA node) produces an electrical signal to control the heart rate.

  4. Heart block - Wikipedia

    en.wikipedia.org/wiki/Heart_block

    Heart block. Heart block ( HB) [ 1] is a disorder in the heart 's rhythm due to a fault in the natural pacemaker. [ 2] This is caused by an obstruction – a block – in the electrical conduction system of the heart. Sometimes a disorder can be inherited. Despite the severe-sounding name, heart block may cause no symptoms at all in some cases ...

  5. Garmin debuts an ECG app, but it's only available on one ...

    www.engadget.com/garmin-ecg-app-smartwatch...

    The company has introduced a simply-titled ECG App that, like equivalents on other devices, can study your heart rhythm and look for atrial fibrillation (aka AFib). If there are signs of trouble ...

  6. Ventricular fibrillation - Wikipedia

    en.wikipedia.org/wiki/Ventricular_fibrillation

    Ventricular fibrillation ( V-fib or VF) is an abnormal heart rhythm in which the ventricles of the heart quiver. [ 2] It is due to disorganized electrical activity. [ 2] Ventricular fibrillation results in cardiac arrest with loss of consciousness and no pulse. [ 1] This is followed by sudden cardiac death in the absence of treatment. [ 2]

  7. Fitbit will roll out a passive heart rhythm monitoring ...

    www.engadget.com/fitbit-passive-heart-rhythm...

    Apple Watch 4 and later can also passively monitor heart rhythms for signs of AFib. While neither company's devices can make a formal diagnosis , they could prompt wearers to consult a doctor for ...

  8. Long QT syndrome - Wikipedia

    en.wikipedia.org/wiki/Long_QT_syndrome

    The various forms of long QT syndrome, both congenital and acquired, produce abnormal heart rhythms (arrhythmias) by influencing the electrical signals used to coordinate individual heart cells. The common theme is a prolongation of the cardiac action potential – the characteristic pattern of voltage changes across the cell membrane that ...

  9. Samsung's newest watches can now take ECG readings in the US

    www.engadget.com/samsung-galaxy-watch-3-galaxy...

    Wed, Sep 23, 2020 · 1 min read. Samsung. Galaxy Watch 3 and Galaxy Watch Active 2 users in the US can take electrocardiogram (ECG) readings starting today through the Samsung Health Monitor app ...

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