Low ECG voltage: Difference between revisions
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==Differential Diagnosis== | ==Differential Diagnosis== | ||
[[File:Low_Voltage_ECG.png|thumb|Specific causes of low voltage ECG]] | |||
===[[Low ECG voltage]]=== | ===[[Low ECG voltage]]=== | ||
==== Cardiac ==== | ====Cardiac==== | ||
*Post-[[MI]] | *Post-[[MI]] | ||
*[[Infiltrative cardiomyopathy]] | *[[Infiltrative cardiomyopathy]] | ||
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*[[Hypothyroidism]] | *[[Hypothyroidism]] | ||
==== Pericardial ==== | ====Pericardial==== | ||
*[[Pericardial effusion|Effusion]] | *[[Pericardial effusion|Effusion]] | ||
*Constrictive [[pericarditis]] | *Constrictive [[pericarditis]] | ||
*Pneumopericardium | *Pneumopericardium | ||
==== Extracardiac ==== | ====Extracardiac==== | ||
*[[COPD]] (limb leads) | *[[COPD]] (limb leads) | ||
*[[Pneumomediastinum]] | *[[Pneumomediastinum]] | ||
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*Obesity | *Obesity | ||
== | ==Evaluation== | ||
[[File:Low voltage ECG.png|thumb|Sample ECG]] | |||
*[[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> | *[[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 | **QRS < 5 mm in limb leads | ||
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==See Also== | ==See Also== | ||
*[[ECG Basics]] | *[[ECG Basics]] | ||
==External Links== | |||
*[http://ddxof.com/low-voltage-ecg/ DDxOf: Differential Diagnosis of Low Voltage ECG] | |||
==References== | ==References== |
Latest revision as of 10:43, 22 July 2016
Background
General Causes
- Fluid, fat or air attenuating signal
- Myocardial infiltration
- Loss of viable myocardium
Clinical Features
- Frequently asymptomatic, depends on underlying cause
Differential Diagnosis
Low ECG voltage
Cardiac
Pericardial
- Effusion
- Constrictive pericarditis
- Pneumopericardium
Extracardiac
- COPD (limb leads)
- Pneumomediastinum
- Pneumothorax
- Pleural effusion
- Pulmonary edema
- Peripheral edema
- Obesity
Evaluation
Management
- Treat underlying condition
Disposition
- Depends on underlying condition
See Also
External Links
References
- ↑ Madias JE. Low QRS voltage and its causes. J Electrocardiol. 2008;41(6):498–500. doi:10.1016/j.jelectrocard.2008.06.021