Premature atrial contraction: Difference between revisions
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==Background== | ==Background== | ||
Premature atrial contractions (PACs) are common and typically benign premature beats characterized by an abnormal early P wave within a cardiac cycle. Less commonly, they can precipitate [[atrial fibrillation]], [[atrial flutter]], or [[SVT]].<ref>Specific dysryhthmias. In: Marx K, Rosen P, ed. Rosen's Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, PA: Elsevier/Saunders, 2014.</ref> | |||
==Clinical Features== | ==Clinical Features== | ||
Revision as of 17:25, 24 March 2020
Background
Premature atrial contractions (PACs) are common and typically benign premature beats characterized by an abnormal early P wave within a cardiac cycle. Less commonly, they can precipitate atrial fibrillation, atrial flutter, or SVT.[1]
Clinical Features
Differential Diagnosis
Palpitations
- Arrhythmias:
- Non-arrhythmic cardiac causes:
- Psychiatric causes:
- Drugs and Medications:
- Alcohol
- Caffeine
- Drugs of abuse (e.g. cocaine)
- Medications (e.g. digoxin, theophylline)
- Tobacco
- Misc
Evaluation
Management
Disposition
See Also
External Links
References
- ↑ Specific dysryhthmias. In: Marx K, Rosen P, ed. Rosen's Emergency Medicine: Concepts and Clinical Practice. 8th ed. Philadelphia, PA: Elsevier/Saunders, 2014.