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Cardiomyopathy

Reviewed 06/2018
 


BASICS

DESCRIPTION

  • Cardiomyopathy encompasses a large group of diseases of the myocardium that commonly result in mechanical pump dysfunction. The current classification scheme attempts to differentiat...

DIAGNOSIS

HISTORY

  • Dyspnea at rest or with exertion

  • Paroxysmal nocturnal dyspnea

  • Orthopnea

  • Postprandial dyspnea

  • Right upper quadrant pain or bloating

  • Fatigue

  • Syncope

  • Edema

PHYSICAL EXAM

  • Tachypnea

  • Cheyne-Stokes br...

TREATMENT

See “Heart Failure, Chronic” for detailed treatment protocols. 

GENERAL MEASURES

  • Reduction of filling pressures

  • Treatment of electrolyte disturbances

MEDICATION

First Line

  • Systolic failure syndrom...

ONGOING CARE

DIET

Low fat, low salt, fluid restriction 

PROGNOSIS

~20–40% of patients in NYHA FC IV die within 1 year. With a transplant, 1-year survival is as high as 94%. 

COMPLICATIONS

Worsening congest...

REFERENCES

1
1 Maron BJ, Towbin JA, Thiene G, et al. Contemporary definitions and classification of the cardiomyopathies: an American Heart Association Scientific Statement from the Council on Clinical...

SEE ALSO

  • Alcohol Use Disorder (AUD); Alcohol Withdrawal; Amyloidosis; Diabetes Mellitus, Type 1; Diabetes Mellitus, Type 2; Hypertension, Essential; Hypertrophic Cardiomyopathy; Hypothyroidism, Adult;...

CODES

ICD10

  • I42.9 Cardiomyopathy, unspecified

  • I42.0 Dilated cardiomyopathy

  • I42.5 Other restrictive cardiomyopathy

  • I42.8 Other cardiomyopathies

  • I42.7 Cardiomyopathy due to drug and external agent

  • I42.6 Alcoh...

CLINICAL PEARLS

  • Cardiomyopathy represents the end-stage of a large number of disease processes involving the heart muscle.

  • Ischemic, hypertensive, postviral, familial, alcoholic, and incessant tachycar...

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