Premature ventricular contraction: Difference between revisions
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==Disposition== | ==Disposition== | ||
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*Inpatient dependent on etiology | |||
==See Also== | ==See Also== | ||
Revision as of 00:40, 21 February 2016
Background
- Abbreviation: PVC
Causes
Clinical Features
- Palpitations vs asymptomatic
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
Workup
- ECG
- If PVC burden is large:
- TSH
- BMP
- Magnesium level
- Ionized calcium in alkalosis
Management[1]
- Benign; generally does not require any treatment or additional workup
- Treat hypoxia/drug toxicity if existing
- Correct electrolyte imbalances, particularly magnesium, calcium, potassium
- Acute ischemia/infarction:
- Complex ectopy frequently seen after pt receives thrombolytics
- 1st line are beta blockers, options below[2]:
- Acute MI: Metoprolol 5 mg IV q2 min for x3 doses, then PO metoprolol 50 mg q6hrs for 2 days, followed by maintenance of 100 mg bid
- Post-MI: Atenolol 5 mg IV over 5 min, then repeat in 10 min, then PO atenolol 50 mg q12hrs for 7 days post-MI
Disposition
- Largely outpatient
- Inpatient dependent on etiology
See Also
External Links
Sources
- ↑ Keany et al. Premature Ventricular Contraction Treatment & Management. Updated Jan 7, 2014. http://emedicine.medscape.com/article/761148-treatment#d10
- ↑ McAuley DF. Beta Blockers. GlobalRPH. http://www.globalrph.com/beta.htm