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Home > Health Hub > Article > What are the causes of ANGINA PECTORIS(inadequate blood supply to the heart.)

What are the causes of ANGINA PECTORIS(inadequate blood supply to the heart.)

Dr. Sunil Dwivedi

Dr. Sunil Dwivedi

  Vasanth nagar, Bengaluru     Feb 14, 2017

   1 min     


Reduced blood flow to your heart muscles causes angina. Blood is a carrier of oxygen, which your heart muscle needs to survive. In situations where heart muscle isn't getting enough oxygen, it causes a condition called ischemia. Coronary artery disease (CAD) is the most common cause of reduced blood flow to your heart muscles. The arteries of the heart (coronary arteries) can become narrowed by fatty deposits called plaques. This is called atherosclerosis.

Angina due to reduced blood flow is a supply problem, wherein the heart is not getting enough oxygen-rich blood. It might be interesting to note that a person may not always have angina if the heart arteries are narrowed due to fatty buildup. The reason is that during times of low oxygen demand — when you're resting, for example — your heart muscle may be able to get by on the reduced amount of blood flow without triggering angina symptoms. When the demand for oxygen suddenly increases, like when you exercise, this can cause angina.

A positive family history of CAD or stroke indicates increased risk to develop unstable angina than in people whose families do not have these conditions. Other risks for unstable angina are related to lifestyle, including:

  • Smoking
  • High cholesterol
  • Sedentary lifestyle
  • High blood pressure
  • Eating a high-fat, high-cholesterol diet
  • Having diabetes
  • Being more than 30 percent overweight
  • Using cocaine or other recreational drugs
Tags:  ANGINA PECTORIS, Heart diseases, lifestyle, Diabetics, hypertension,atherosclerosis,

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