More people than ever have the condition, in which the heart muscle struggles to pump enough blood around the body, but the number of nurses looking after sufferers has been cut.
The British Heart Foundation Scotland and Chest Heart and Stroke Scotland are raising concern that some patients may miss out on vital support unless the situation improves.
Almost 94,000 people in Scotland have heart failure, but exercise programmes and careful self-management are known to make a significant difference.
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