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Heart failure - chronic - Background information
What causes it?
- Many different conditions can lead to chronic heart failure. These include [European Society of Cardiology, 2008]:
- Conditions that damage heart muscle or limit its ability to function normally:
- Coronary artery disease (most common).
- Hypertension (next most common).
- Cardiomyopathies.
- Drugs (beta-blockers, calcium-channel blockers, and antiarrhythmics interfere with the heart's rhythm; cytotoxic drugs, such as anthracyclines and trastuzumab, can result in cardiomyopathy).
- Toxins (alcohol, drugs, cocaine, mercury, cobalt, arsenic).
- Endocrine conditions (diabetes mellitus, hypothyroidism, hyperthyroidism, Cushing's syndrome, adrenal insufficiency, excessive growth hormone, phaeochromocytoma).
- Infiltrative conditions (sarcoidosis, amyloidosis, haemochromatosis, connective tissue disease).
- Other conditions (Chagas' disease, HIV infection, end-stage renal failure).
- Conditions that reduce cardiac output:
- Increased vascular resistance with hypertension.
- Abnormal heart rhythm (for example atrial fibrillation and other tachyarrhythmias).
- Pericardial disease.
- Obstructive sleep apnoea.
- Aortic stenosis (severe).
- Conditions that result in a high cardiac output:
- Anaemia.
- Thyrotoxicosis.
- Septicaemia.
- Liver failure.
- Arteriovenous shunts.
- Paget's disease.
- Thiamine (vitamin B1) deficiency.
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