What AFib looks like on ECG?

This means an ECG showing atrial fibrillation will have no visible P waves and an irregularly irregular QRS complex . The ventricular rate is frequently fast, unless the patient is on AV nodal blocking drugs such as beta-blockers or non-dihydropyridine calcium channel blockers.

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What is left atrial flutter?

Atrial flutter is a type of abnormal heart rhythm, or arrhythmia . It occurs when a short circuit in the heart causes the upper chambers (atria) to pump very rapidly. Atrial flutter is important not only because of its symptoms but because it can cause a stroke that may result in permanent disability or death.

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Is RBBB life threatening?

In people with known or suspected heart disease, right bundle branch block is associated with a greater risk of death, especially after a heart attack . Some people with right bundle branch block may ultimately need a permanent pacemaker, but this is rare.

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