Congestive heart failure electrocardiogram: Difference between revisions
Jump to navigation
Jump to search
| Line 6: | Line 6: | ||
==Electrocardiographic Abnormalities== | ==Electrocardiographic Abnormalities== | ||
* Low Voltage: The often shows [[low voltage]]. | * [[Low QRS Voltage]]: The often shows [[low voltage]]. There are two broad underlying causes of low QRS voltage in the patient with heart failure: | ||
#Electrically inert [[myocardium]] due to a loss of viable [[myocardium]] | |||
#Infiltration of the myocardium ([[myxedematous]], [[Chagas disease]]) | |||
In alphabetical order the differential diagnosis of causes of low QRS voltage in the patient with hear failure includes: | |||
:*[[Amyloidosis]] | |||
:*[[Anasarca]]<ref name="pmid18804788">{{cite journal| author=Madias JE| title=Low QRS voltage and its causes. | journal=J Electrocardiol | year= 2008 | volume= 41 | issue= 6 | pages= 498-500 | pmid=18804788 | doi=10.1016/j.jelectrocard.2008.06.021 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=18804788 }} </ref> | |||
:*Dilated [[cardiomyopathy]]<ref name="pmid18353352">{{cite journal| author=Chinitz JS, Cooper JM, Verdino RJ| title=Electrocardiogram voltage discordance: interpretation of low QRS voltage only in the limb leads. | journal=J Electrocardiol | year= 2008 | volume= 41 | issue= 4 | pages= 281-6 | pmid=18353352 | doi=10.1016/j.jelectrocard.2007.12.001 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=18353352 }} </ref> | |||
:*[[Chagas disease]] | |||
:* Diffuse [[coronary artery disease]] | |||
:* [[Congestive heart failure]] | |||
:* [[Generalized edema]] and [[pedal edema]]<ref name="pmid18804788">{{cite journal| author=Madias JE| title=Low QRS voltage and its causes. | journal=J Electrocardiol | year= 2008 | volume= 41 | issue= 6 | pages= 498-500 | pmid=18804788 | doi=10.1016/j.jelectrocard.2008.06.021 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=18804788 }} </ref> | |||
:* [[Hypothyroidism]] | |||
:* Prior [[myocardial infarction]] | |||
:*[[Myocarditis]] | |||
:*[[Myxedema]] | |||
:* [[Obesity]] | |||
:* [[Tamponade]] | |||
* Poor R wave progression: in the precordial leads may be secondary to a prior myocardial infarction but can be observed in the absence of a prior myocardial infarction. | * Poor R wave progression: in the precordial leads may be secondary to a prior myocardial infarction but can be observed in the absence of a prior myocardial infarction. | ||
* [[Left bundle branch block]] ([[LBBB]]): can be observed in both ischemic and non-ischemic cases of heart failure | * [[Left bundle branch block]] ([[LBBB]]): can be observed in both ischemic and non-ischemic cases of heart failure | ||
Revision as of 19:58, 1 April 2012
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Although there is no diagnostic criteria of congestive heart failure on the EKG, there may be signs of the underlying cardiac cause(s) of congestive heart failure.
Electrocardiographic Abnormalities
- Low QRS Voltage: The often shows low voltage. There are two broad underlying causes of low QRS voltage in the patient with heart failure:
- Electrically inert myocardium due to a loss of viable myocardium
- Infiltration of the myocardium (myxedematous, Chagas disease)
In alphabetical order the differential diagnosis of causes of low QRS voltage in the patient with hear failure includes:
- Poor R wave progression: in the precordial leads may be secondary to a prior myocardial infarction but can be observed in the absence of a prior myocardial infarction.
- Left bundle branch block (LBBB): can be observed in both ischemic and non-ischemic cases of heart failure
- Left ventricular hypertrophy: consistent with a history of hypertension can be seen
- Left atrial enlargement
- Non-specific ST segment and T wave changes
References
- ↑ 1.0 1.1 Madias JE (2008). "Low QRS voltage and its causes". J Electrocardiol. 41 (6): 498–500. doi:10.1016/j.jelectrocard.2008.06.021. PMID 18804788.
- ↑ Chinitz JS, Cooper JM, Verdino RJ (2008). "Electrocardiogram voltage discordance: interpretation of low QRS voltage only in the limb leads". J Electrocardiol. 41 (4): 281–6. doi:10.1016/j.jelectrocard.2007.12.001. PMID 18353352.