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2. Atrial fibrillation - Wikipedia

   en.wikipedia.org/wiki/Atrial_fibrillation

   A 12-lead ECG showing atrial fibrillation at approximately 132 beats per minute Diagram of normal sinus rhythm as seen on ECG. In atrial fibrillation the P waves, which represent depolarization of the top of the heart, are absent. Diagnosis of atrial fibrillation is diagnosed on an electrocardiogram (ECG/EKG). The evaluation of atrial ...

3. Third-degree atrioventricular block - Wikipedia

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

   Atrial tachycardia with complete A-V block and resulting junctional escape. Many conditions can cause third-degree heart block, but the most common cause is coronary ischemia. Progressive degeneration of the electrical conduction system of the heart can lead to third-degree heart block.

4. Supraventricular tachycardia - Wikipedia

   en.wikipedia.org/wiki/Supraventricular_tachycardia

   Atrial fibrillation: Red dots show atrial fibrillation activity. Atrial fibrillation meets the definition of SVT when associated with a ventricular response greater than 100 beats per minute. It is characterized as an "irregularly, irregular rhythm" both in its atrial and ventricular depolarizations and is distinguished by its fibrillatory ...

5. 9 Weird Symptoms Cardiologists Say You Should Never Ignore

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

   It’s possible you could have a heart rhythm disorder like atrial fibrillation, or Afib. “When we're trying to evaluate palpitations, we want to identify whether there's an actual arrhythmia ...

6. Atrioventricular block - Wikipedia

   en.wikipedia.org/wiki/Atrioventricular_block

   An electrocardiogram, or ECG, is used to differentiate between the different types of AV block. In AV block, there is a disruption between the signal traveling from the atria to the ventricles. This results in abnormalities in the PR interval, as well as the relationship between P waves and QRS complexes on the ECG tracing.

7. Automatic tachycardia - Wikipedia

   en.wikipedia.org/wiki/Automatic_tachycardia

   Ectopic atrial tachycardia (EAT), also known as automatic atrial tachycardia, is an arrhythmia caused by both atria with abnormally fast atrial rates. [12] The ectopic focus's firing rate is quicker than that of the sinus node, and it overrides normal sinus node activity. Heart rates in children and adolescents can range from 130 to 210 beats ...