Cardio

Restrictive Cardiomyopathy

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Pathology

Heart muscle is rigid and is restricted from stretching and filling properly
.

Aetiology

Primary: Idiopathic, fibroelastosis
Secondary: Amyloidosis, Haemochromatosis, sarcoidosis, carcinoid, malignancy

Signs

Oedema, ascites, palpable apex, hepatomegaly, raised JVP, prominent ‘x’ and ‘y’ 
descents, Kussmaul’s sign, loud S3 and S4

Symptoms

Exertional shortness of breath, decreased exercise tolerance and fatigue

Investigations

ECG: P mitrale, P pulmonale, conduction delay
Echo: Assess systolic and ventricular function
Cardiac catheterisation: To exclude constrictive pericarditis


Treatment

Treat underlying cause
Treat symptoms
Cardiac Transplantation.

Prognosis

Poor prognosis, most patients die within 1 year
Pulmonary hypertension, thromboembolic complications, right ventricular 
hypertrophy and right heart failure

Key Facts

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Key Images

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Key References

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