What heart conditions can cause ectopic heart beats?

Many: Ectopy can be seen in normal hearts with no apparent disease. There are many cardiac conditions such as ischemia, heart failure, inflammation, scar and heart attach that are associated with ectopy.

Many non-heart: Conditions can cause it. Like coffee and energy drinks, dehydration, alcohol, smoking, cold medicine, street drugs like marihuana, lack of physical conditioning/ obesity, hyperthyroidism, anxiety attacks to mention few. Heart conditions like angina, hypertension, conduction delays etc. Or just can be normal for a person. I get pvc's after exercise. Normal echo and stress test. See your physician.