Ver el código de «Low ECG voltage»

==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==
[[File:Low_Voltage_ECG.png|thumb|Specific causes of low voltage ECG]]
===[[Low ECG voltage]]===
====Cardiac====
*Post-[[MI]]
*[[Infiltrative cardiomyopathy]]
*[[Myocarditis]]
*[[Hypothyroidism]]

====Pericardial====
*[[Pericardial effusion|Effusion]]
*Constrictive [[pericarditis]]
*Pneumopericardium

====Extracardiac====
*[[COPD]] (limb leads)
*[[Pneumomediastinum]]
*[[Pneumothorax]]
*[[Pleural effusion]]
*[[Pulmonary edema]]
*[[Peripheral edema]]
*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>
**QRS < 5 mm in limb leads
**QRS < 10 mm in chest leads

==Management==
*Treat underlying condition

==Disposition==
*Depends on underlying condition

==See Also==
*[[ECG Basics]]

==External Links==
*[http://ddxof.com/low-voltage-ecg/ DDxOf: Differential Diagnosis of Low Voltage ECG]

==References==
<references/>

[[Category:Cardiology]]