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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. Rhythm interpretation - Wikipedia

   en.wikipedia.org/wiki/Rhythm_interpretation

   A premature atrial pacemaker has a regular underlying rhythm however there is a premature beat which can be identified by an irregular p wave with a different size, shape, and direction often found within a T wave, the PR interval is generally normal however can be hard to measure, the QRS complex is premature for the PAC, but is generally normal.

5. List of cardiology mnemonics - Wikipedia

   en.wikipedia.org/wiki/List_of_cardiology_mnemonics

   Anticoagulants: To prevent embolization.. Beta blockers: To block the effects of certain hormones on the heart to slow the heart rate.. Calcium Channel Blockers: Help slow the heart rate by blocking the number of electrical impulses that pass through the AV node into the lower heart chambers (ventricles).

6. Cardioversion - Wikipedia

   en.wikipedia.org/wiki/Cardioversion

   Synchronized electrical cardioversion is used to treat hemodynamically unstable supraventricular (or narrow complex) tachycardias, including atrial fibrillation and atrial flutter. It is also used in the emergent treatment of wide complex tachycardias, including ventricular tachycardia, when a pulse is present.

7. Sitting more than 10 hours a day may increase heart failure ...

   www.aol.com/sitting-more-10-hours-day-134600971.html

   After a follow-up of a median of eight years, about 5% of study participants developed atrial fibrillation, about 2.1% developed heart failure, almost 2% had a heart attack, and a little less than ...