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Mammary Artery (also called thoracic artery)
Mammary Artery (also called thoracic artery) Artery located in the chest wall and used for coronary artery bypass surgery. Most commonly kept intact at its origin, and sewn to the coronary artery beyond the site of blockage. If the surgeon removes the mammary artery from its origin to use as a bypass graft, it is then called a "free" mammary artery bypass graft.
RELATED TERMS--------------------------------------
Artery
A blood vessel that carries blood from the heart to the body.
Chest
The area of the body located between the neck and the abdomen. The chest contains the lungs, the heart and part of the aorta. The walls of the chest are supported by the dorsal vertebrae, the ribs, and the sternum.
Bypass
A surgical procedure designed to increase blood flow to an organ or extremity that has narrowing or blockage of the blood supplying artery. Examples include coronary artery bypass surgery, aortic replacement, ABI (aorta-bi-iliac), ABF (aorto-bi-femoral), and femoral-popliteal bypass)
Surgery
Treating diseases or other medical conditions by operating on a patient to remove or repair parts of the body.
Mammary
Having to do with the breast.
Graft
A piece of skin or other tissue used as a transplant.
SIMILAR TERMS--------------------------------------
Mammary
Having to do with the breast.
Mammogram
Breast x-ray used to detect breast cancer.
Mammography
An X-ray procedure using a special low irradiation technique to detect abnormal change in breast tissue. Its main use is to detect breast lumps that are too small to be found during breast self examination or physical examination. The higher the level of estrogen (and possibly progestin) the more dense breast tissue is and the less likely that a mammogram will see abnormal tissue. It has many false positive readings meaning that there is no cancer yet the test was abnormal.
Mammography Center
The Mammography Center is a hospital in West Chester, Pennsylvania, United States.
Mammoth Hospital
The Mammoth Hospital is a hospital in Mono, California, United States.
PREVIOUS AND NEXT TERMS--------------------------------------
Morbidity Rate
The sickness rate; the number of people who are sick or have a disease compared with the number who are well.
Mortality Rate
The death rate; the number of people who die of a certain disease compared with the total number of people. Mortality is most often stated as deaths per 1,000, per 10,000, or per 100,000 persons.
Myocardial Infarction
Also called a heart attack; results from permanent damage to an area of the heart muscle. This happens when the blood supply to the area is interrupted because of narrowed or blocked blood vessels.
Myo-inositol
A substance in the cell that is thought to play a role in helping the nerves to work. Low levels of myo-inositol may be involved in diabetic neuropathy.
MARYLAND BRIDGE
Sometimes a situation arises where a missing tooth is abutted by healthy teeth on each side. If an implant (See "Implants") is not being used to restore the missing tooth, then a more conservative, less expensive alternative treatment like the Maryland Bridge can be used. Unlike conventional fixed bridges, the Maryland Bridge does not require the use of crowns or extensive tooth preparation. The bridge is bonded (or attached) directly to the abutment teeth. A Maryland Bridge is not as strong as a conventional bridge or implants and may not last as long before needing replacement. See also "Fixed Bridge."
Mammary Artery (also called thoracic artery)
Maze Procedure
The Maze procedure is a surgical treatment for chronic atrial fibrillation. The surgeon makes multiple incisions in the atrium to form a path or maze through which the impulse can travel to reach the atrioventricular node. After this is done the atrium is sewn back together and a normal rhythm is more easily maintained.
Mechanical Valve
In people who require heart valve replacement surgery, it is sometimes desirable to implant a mechanical valve. A mechanical valve is made of artificial parts and functions similarly to a normal heart valve. People who have a mechanical valve implanted must take blood thinners lifelong to prevent blood clots from forming on the mechanical valve.
Medical Student
A student in the third or fourth year of medical school training. The student doctor assists the primary and resident doctors in daily care of patients.
Mesenteric Arterial Ultrasound
A non-invasive imaging procedure that uses high-frequency sound waves to view the arteries supplying gastrointestinal tract to determine the presence of narrowing.
Metabolic Exercise Stress Test (also called metabolic stress test)
A test used to measure the performance of the heart and lungs while they are under physical stress. The test involves walking on a treadmill or pedaling a stationary bike at increasing levels of difficulty, while being closely monitored.
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