Human heart is one of the most complex organs in the body. It fulfills an intricate function with the help of a network of blood vessels. The arteries run all over the body and help to transport blood from the heart to all parts of the body, while the veins help in bringing back the deoxygenated blood.

When treaties get blocked, a condition known as atherosclerosis occurs. This condition is also commonly known as coronary artery disease, or CAD. The arteries get blocked over a period of time due to deposits of fats, which are rich in cholesterol, extra muscle cells, collagen and at times proteins. CAD occurs regularly and poses serious heart condition if not detected and treated in time. If these deposits of fat go undetected for a long period of time, they tend to narrow the treaties. Narrowed arterial walls lead to proven flow of blood. This is clinically referred to as ischemia.

The symptoms of blocked arteries are noticeable in the form of angina pectoris, a condition where the affected person experiences severe pain in the chest. Cardiac arrest due to sudden failure of a portion of the heart muscle is also one of the predominant symptoms of blocked arteries. A nagging pain and discomfort is felt at the center of the chest. Few other symptoms are shortness of breath, choking, nausea, vomiting, excess sweating and pallor of the skin.

To avoid the occurrence of heart failure due to blockage of treaties, a person must be aware of certain early warning signs and keep monitoring certain vital things on a regular basis. This is especially true for individuals who are more than 30 years of age. Body weight is an important factor in determining how healthy a person is. Other things like blood cholesterol level, blood pressure, blood sugar level, and stress levels must be monitored continuously.

Blocked sections can be diagnosed with a help of physical examination, ECG, coronary angiography, chest X-ray and certain blood tests. These tests help in determining the blood cholesterol levels, diabetes and thyroid hormone. The first form of treatment for CAD is educating the patient about leading a healthy lifestyle. Medication is the next treatment. Patients suffering from CAD are prescribed drugs that include beta blockers, calcium channel blockers and nitrates. ACE inhibitors are also given by the doctor in case of blocked arteries. If the condition can not be controlled by drugs, then certain surgical procedures like coronary artery bypass, angioplasty and percutaneous transluminal coronary angioplasty are carried out.