Heart Failure: Symptoms, Treatment & UK Online Doctor
Educational information — not medical advice.
This article was prepared by the OnlineDoctor24 editorial team and reviewed for factual accuracy against UK clinical guidance (NHS and NICE). It is not written by a doctor and does not replace personal medical advice. For symptoms specific to you, book an online doctor consultation.
Key points
- Heart failure means the heart pumps less efficiently — not that it's stopped.
- Modern 'four-pillar' therapy (ACEi/ARNI, beta-blocker, MRA, SGLT-2) substantially improves prognosis.
- Symptoms: breathlessness, ankle swelling, fatigue.
- Specialist diagnosis (echocardiogram) is essential.
Symptoms
- Breathlessness on exertion or lying flat.
- Swollen ankles.
- Fatigue.
- Waking at night short of breath.
Diagnosis
NT-proBNP blood test screens; echocardiogram confirms and characterises (HFrEF vs HFpEF).
Treatment (four pillars for HFrEF)
- ACEi/ARB or sacubitril-valsartan (Entresto).
- Beta-blocker (bisoprolol, carvedilol).
- Mineralocorticoid receptor antagonist (spironolactone, eplerenone).
- SGLT-2 inhibitor (dapagliflozin, empagliflozin).
Lifestyle
- Salt and fluid awareness.
- Daily weights — sudden gain signals fluid retention.
- Cardiac rehabilitation.
- Vaccinations (flu, pneumococcal, COVID).
Red flags — when to seek urgent help
Call 999 or go to A&E if you experience any of the following:
- Sudden severe breathlessness
- Coughing pink frothy sputum
- Chest pain
- Rapid weight gain >2kg in 2 days
Frequently asked questions
Common questions UK patients ask about heart failure.
How an online doctor can help
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This article is for general information only and does not replace personal medical advice from a qualified doctor. Content is reviewed against UK NHS and NICE guidance by the OnlineDoctor24 editorial team and is not authored by a medical doctor. If your symptoms worsen or you are unsure, please book a consultation with a GMC-registered GP.
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