What should you know about genetic heart failure?

Some cardiomyopathies and rhythm disorders can be passed through families and may affect how the heart muscle contracts or relaxes. Heart failure means the heart is not meeting the body’s needs efficiently; it does not mean the heart has stopped. Breathlessness, fatigue, cough, palpitations and swollen ankles can occur, but these symptoms have many possible causes. A family history of unexplained fainting, sudden cardiac death or heart disease at a young age should be shared with a clinician.

Arrange a review if a close relative has an inherited heart condition or if you develop ongoing breathlessness, reduced exercise tolerance or swelling. Assessment may include an examination, blood tests, an electrocardiogram, heart imaging and sometimes genetic counselling or testing. Take prescribed medicines consistently, monitor symptoms as advised, control blood pressure and avoid changing salt, fluid or activity plans without guidance. A chronic disease review can coordinate medicines, monitoring and referrals.

Call emergency services for severe breathlessness at rest, chest pressure, fainting, blue or grey lips, new confusion or palpitations with collapse. Seek prompt medical advice when ankle swelling rapidly worsens, you need extra pillows to breathe, or your weight changes quickly with fluid symptoms. Do not wait for a routine appointment if symptoms are sudden or severe. Atrial fibrillation and hypertension can affect heart workload, so mention them during assessment.

Ask whether your family history suggests cardiomyopathy, an inherited rhythm condition or another cause. Discuss which relatives should be assessed, what tests are suitable and how often monitoring is needed. Ask about exercise, pregnancy, alcohol, medicines and warning signs. Confirm who will coordinate follow-up and what to do outside clinic hours if symptoms change.