 
<translate> Zaa ajụjụ ndị na-esonụ site n'iji ụbụrụ gị zaa ha. Njem: Ọrịa akwara akwara (CAD), nke a makwaara dị ka ọrịa obi ischemic (IHD), na-ezo aka n'otu ìgwè ọrịa ndị na-agụnye ọrịa obi na-adịgide adịgide, ọrịa obi na-adịghị adịgide adịgide, ọrịa obi myocardial, na ọnwụ obi mberede. Ọ dị n'etiti ìgwè ọrịa obi nke ọ bụ ụdị ya kasị adịkarị. Ihe mgbaàmà a na-ahụkarị bụ obi mgbu ma ọ bụ ahụ erughị ala nke nwere ike ịgafe n'ubu, ogwe aka, azụ, olu, ma ọ bụ agba. Mgbe ụfọdụ, ọ pụrụ ịdị gị ka ọ bụ obi ọkụ. Ihe mgbaàmà ndị a na-abụkarị mgbe mmadụ na-emega ahụ́ ma ọ bụ mgbe obi na-adịghị ya mma, ha anaghị adịte aka, ha na-akwụsịkwa mgbe onye ahụ zuru ike. A pụkwara inwe nsogbu iku ume, mgbe ụfọdụkwa, a dịghị enwe mgbaàmà ọ bụla. N'ọtụtụ ọnọdụ, ihe mgbaàmà mbụ bụ nkụchi obi. Nsogbu ndị ọzọ na-agụnye nkụchi obi ma ọ bụ obi na-akụ n'ụzọ na-adịghị mma.  Ajụjụ: Dabere n'akụkụ Akwụkwọ Nsọ a, olee ụdị ọrịa ọrịa akwara obi bụ? <eng> Answer the following Q with stream of consciousness. Passage: Coronary artery disease (CAD), also known as ischemic heart disease (IHD), refers to a group of diseases which includes stable angina, unstable angina, myocardial infarction, and sudden cardiac death. It is within the group of cardiovascular diseases of which it is the most common type. A common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Occasionally it may feel like heartburn. Usually symptoms occur with exercise or emotional stress, last less than a few minutes, and improve with rest. Shortness of breath may also occur and sometimes no symptoms are present. In many cases, the first sign is a heart attack. Other complications include heart failure or an abnormal heartbeat.

Question: Based on this passage, what type of disease is coronary heart disease? 