According to the Wiktionary Dictionary cardiopathy is "any disease or disorder of the heart", is very dangerous because it can cause death, is usually caused by asthma or cholesterol, but may also occur elsewhere in the cardiovascular system. There are many types of heart disease, but the most dangerous and common is ischemic heart disease, if it becomes chronic, it is called myocardial infarction.
According to the Dicciomed Dictionary: from Greek, heart disease is formed by: cardio- (heart) + patheia (disease).
Other words with the root cardio- are: cardiogram or cardiopulmonary. Other words with the root -pathy are: gastropathy, psychopaty or encephalopaty.