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Electromyography. Electromyography (EMG) is a technique for evaluating and recording the electrical activity produced by skeletal muscles. [1][2] EMG is performed using an instrument called an electromyograph to produce a record called an electromyogram. An electromyograph detects the electric potential generated by muscle cells [3] when these ...
Electromyography (EMG) Electromyography is the measurement and analysis of the electrical activity in skeletal muscles. This technique is useful for diagnosing the health of the muscle tissue and the nerves that control them. [8] EMG measures action potentials, called Motor Unit Action Potentials (MUAPs), created during muscle contraction.
Complex regional pain syndrome is uncommon, and its cause is not clearly understood. CRPS typically develops after an injury, surgery, heart attack, or stroke. [ 8 ][ 12 ] Investigators estimate that 2–5% of those with peripheral nerve injury, [ 13 ] and 13–70% of those with hemiplegia (paralysis of one side of the body) [ 14 ] will develop ...
A fasciculation, or muscle twitch, is a spontaneous, involuntary muscle contraction and relaxation, involving fine muscle fibers. [1] They are common, with as many as 70% of people experiencing them. [1] They can be benign, or associated with more serious conditions. [1] When no cause or pathology is identified, they are diagnosed as benign ...
The Mayo Clinic Cancer Center is one of the oldest NCI-designated cancer centers in the United States, having first been designated in 1973. [3] The main location of the Mayo Clinic is in Rochester, MN. Campuses in Arizona and Florida opened later and became part of the Mayo Clinic Cancer Center in 2003. [4][5]
Cancer treatment needs to be selected to do least harm to both the woman and her embryo/fetus. In some cases a therapeutic abortion may be recommended. Radiation therapy is out of the question, and chemotherapy always poses the risk of miscarriage and congenital malformations. [64] Little is known about the effects of medications on the child.
Radical mastectomy is a surgical procedure that treats breast cancer by removing the breast and its underlying chest muscle (including pectoralis major and pectoralis minor), and lymph nodes of the axilla (armpit). Breast cancer is the most common cancer among women. During the early twentieth century it was primarily treated by surgery, when ...
Clinical neurophysiology. Clinical neurophysiology is a medical specialty that studies the central and peripheral nervous systems through the recording of bioelectrical activity, whether spontaneous or stimulated. It encompasses both research regarding the pathophysiology along with clinical methods used to diagnose diseases involving both ...