Difference between revisions of "Low ECG voltage"

(Added sample ECG)
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==Definition<ref>Madias JE. Low QRS voltage and its causes. J Electrocardiol. 2008;41(6):498–500. doi:10.1016/j.jelectrocard.2008.06.021</ref>==
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==Background==
*QRS < 5 mm in limb leads
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===General Causes===
*QRS < 10 mm in chest leads
 
 
 
==General Causes==
 
 
*Fluid, fat or air attenuating signal
 
*Fluid, fat or air attenuating signal
 
*Myocardial infiltration
 
*Myocardial infiltration
 
*Loss of viable myocardium
 
*Loss of viable myocardium
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 +
==Clinical Features==
  
 
==Differential Diagnosis==
 
==Differential Diagnosis==
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*Peripheral edema
 
*Peripheral edema
 
*Obesity
 
*Obesity
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==Diagnosis==
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*[[ECG]]<ref>Madias JE. Low QRS voltage and its causes. J Electrocardiol. 2008;41(6):498–500. doi:10.1016/j.jelectrocard.2008.06.021</ref>
 +
**QRS < 5 mm in limb leads
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**QRS < 10 mm in chest leads
 +
 +
==Management==
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*Treat underlying condition
 +
 +
==Disposition==
 +
*Depends on underlying condition
  
 
==See Also==
 
==See Also==

Revision as of 13:43, 5 June 2016

Background

General Causes

  • Fluid, fat or air attenuating signal
  • Myocardial infiltration
  • Loss of viable myocardium

Clinical Features

Differential Diagnosis

Specific causes of low voltage ECG
Sample ECG

Cardiac

  • Post-MI
  • Infiltrative cardiomyopathy
  • Myocarditis
  • Hypothyroidism

Pericardial

  • Effusion
  • Constrictive pericarditis
  • Pneumopericardium

Extracardiac

  • COPD (limb leads)
  • Pneumomediastinum
  • Pneumothorax
  • Pleural effusion
  • Pulmonary edema
  • Peripheral edema
  • Obesity

Diagnosis

  • ECG[1]
    • QRS < 5 mm in limb leads
    • QRS < 10 mm in chest leads

Management

  • Treat underlying condition

Disposition

  • Depends on underlying condition

See Also

References

  1. Madias JE. Low QRS voltage and its causes. J Electrocardiol. 2008;41(6):498–500. doi:10.1016/j.jelectrocard.2008.06.021