Other causes of heart failure: congenital heart disease, valvular disease and cardiomyopathy

Damage to the heart muscle itself and also to any of the heart valves can develop into heart failure. The heart muscle can be damaged by infections, alcohol or drugs used for chemotherapy. Heart failure can also develop as a complication of congenital heart defects (congenital means present at birth).

Dilated cardiomyopathy or DCM is a condition which can lead to heart failure. DCM causes the heart muscle to get longer and become weak or ‘floppy’. Though DCM is usually associated with drug or alcohol abuse it can also be caused by viral infection. A woman we talked to who was told she had DCM said she contracted it from a virus she had probably caught on a holiday to the Far East. DCM can run in families and one woman thought that she may have inherited a genetic predisposition for it from her father, though she also believed her heart failure was triggered by the stress of caring for her husband for many years (see also ‘Stress and heart failure‘).

Her consultant thinks she contracted a virus that attacked her heart.

Age at interview 53

Gender Female

Age at diagnosis 49

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Describes her ideas about the causes of her dilated cardiomyopathy.

Age at interview 69

Gender Female

Age at diagnosis 67

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Any damage to the four valves whih control the flow of blood throught the heart can also lead to heart failure. Living with a valvular disease can severely affect someone’s quality of life. For instance a woman who developed valvular disease as a result of rheumatic fever in childhood had been advised by doctors in the 1940s never to marry or have children. Another woman who had both her mitral valve and aortic valve replaced, said that valve problems had made both her pregnancies difficult and contributed to her heart function getting worse. Paula was born with heart problems and also developed valve disease in early adultoood and now has heart failure.

Childhood rheumatic fever affected her heart in adult life.

Age at interview 72

Gender Female

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She was determined to have children despite having heart valve disease.

Age at interview 68

Gender Female

Age at diagnosis 48

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Paula had surgery aged 3 for a congenital heart condition and was then well until needing a valve replacement and then a pacemaker in her 30s.

Age at interview 46

Gender Female

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Several mentioned that they had developed diabetes before heart failure, and others thought that diabetes had begun after their heart problems. The heart can also be put under strain by damage to other parts of the body, such as the lungs, liver and kidneys. Most people were unclear about whether any other illness had been caused by their heart failure or vice versa. One man who discovered he had heart failure during medical tests before his liver transplant described his heart as a ‘stage villain’ that had crept up on him.

He did not realise he had heart disease until he needed a liver transplant.

Age at interview 62

Gender Male

Age at diagnosis 56

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