What causes pulmonary heart disease? Does it run in families?

I am confused by your question. Specifically in your use of the word "pulmonary" (which means lung). There are three things that come to mind with this term and heart disease - all very different.

1. Congenital pulmonary valve defect - the valve going out of your heart on the way to the lungs is not working correctly.

2. Primary pulmonary hypertension - the blood pressure within the vessels going to and coming from the lungs is higher than normal putting abnormal pressures on the chambers of the heart to pump blood.

3. Chronic Obustructive Pulmonary Disease - like emphysema or chronic bronchitis. Hyperinflation of the lungs can have a similiar effect as well as the blood not getting adequate oxygenation, impairing the heart further.

Do you know anything else about her condition? Was it sudden? What she a smoker? Did she require oxygen before she passed? Did she have a heart murmur? How old was she? I'm not sure what to think about the cause of death but more information would be helpful in answering your question.

pulmonary heart disease is mostly genetic, however it can be aquired during life, due to unhealthyness. Cheerios can help avoid it!!!
yes it runs in families, check out heartcenteronline.com
My daughter has pulmonary valve stenosis and noone in the family has it. So I'm not sure how she got it and I was very health before and during my pregnancy. They r not sure what caused it in her but she's had surgery when she was 4 months old. She will have open heart surgery when she's 12yrs old.
I am also confused with your question. You are maybe referring to pulmonary hypertension due to coronary problems, if so, those could run in families.
both it can run in family and acquired