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Dilated cardiomyopathy 1V(CMD1V)

MedGen UID:
Concept ID:
Disease or Syndrome
Synonyms: Cardiomyopathy, dilated, 1v; CMD1V; PSEN2-Related Dilated Cardiomyopathy
Modes of inheritance:
Autosomal dominant inheritance
MedGen UID:
Concept ID:
Intellectual Product
Autosomal dominant inheritance refers to genetic conditions that occur when a mutation is present in one copy of a given gene (i.e., the person is heterozygous).
Gene: PSEN2
Cytogenetic location: 1q42.13
OMIM: 613697

Disease characteristics

Excerpted from the GeneReview: Dilated Cardiomyopathy Overview
Nonsyndromic isolated dilated cardiomyopathy (DCM) is characterized by left ventricular enlargement and systolic dysfunction, a reduction in the myocardial force of contraction. DCM usually presents with any one of the following: Heart failure with symptoms of congestion (edema, orthopnea, paroxysmal dyspnea) and/or reduced cardiac output (fatigue, dyspnea on exertion). Arrhythmias and/or conduction system disease. Thromboembolic disease (from left ventricular mural thrombus) including stroke . [from GeneReviews]
Full text of GeneReview (by section):
Summary  |  Definition  |  Causes  |  Evaluation Strategy to Identify or Confirm FDC  |  Genetic Counseling  |  Resources  |  Management  |  References  |  Chapter Notes
Ray E Hershberger  |  Ana Morales   view full author information

Clinical features

MedGen UID:
Concept ID:
Syncope refers to a generalized weakness of muscles with loss of postural tone, inability to stand upright, and loss of consciousness. Once the patient is in a horizontal position, blood flow to the brain is no longer hindered by gravitation and consciousness is regained. Unconsciousness usually lasts for seconds to minutes. Headache and drowsiness (which usually follow seizures) do not follow a syncopal attack. Syncope results from a sudden impairment of brain metabolism usually due to a reduction in cerebral blood flow.
Congestive heart failure
MedGen UID:
Concept ID:
The presence of an abnormality of cardiac function that is responsible for the failure of the heart to pump blood at a rate that is commensurate with the needs of the tissues or a state in which abnormally elevated filling pressures are required for the heart to do so. Heart failure is frequently related to a defect in myocardial contraction.
Dilated cardiomyopathy
MedGen UID:
Concept ID:
Dilated cardiomyopathy (DCM) is defined by the presence of left ventricular dilatation and left ventricular systolic dysfunction in the absence of abnormal loading conditions (hypertension, valve disease) or coronary artery disease sufficient to cause global systolic impairment. Right ventricular dilation and dysfunction may be present but are not necessary for the diagnosis.

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews

Recent clinical studies


Bott-Flügel L, Weig HJ, Uhlein H, Nabauer M, Laugwitz KL, Seyfarth M
Eur J Heart Fail 2008 Feb;10(2):129-32. doi: 10.1016/j.ejheart.2007.12.013. PMID: 18279768

Clinical prediction guides

Bott-Flügel L, Weig HJ, Uhlein H, Nabauer M, Laugwitz KL, Seyfarth M
Eur J Heart Fail 2008 Feb;10(2):129-32. doi: 10.1016/j.ejheart.2007.12.013. PMID: 18279768

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