Neurology

A migraine is a type of headache characterized by severe throbbing pain on one side of the head accompanied by secondary symptoms such as nausea, vomiting, and sensitivity to light, sound or smell. Other symptoms may include lightheadedness and blurry vision. A migraine may be preceded by an aura, a neurological warning sign, which may occur 10 to 15 minutes before an attack.

The brain requires a continuous supply of oxygen and nutrients from the blood in order to function properly. A blockage, interruption or severe reduction in the supply of blood to the brain can result in a condition called a stroke. Stroke is a medical emergency that leads to the death of brain cells within minutes of the interruption in blood supply.

The peripheral nervous system transmits signals from the brain and spinal cord to the rest of the body. Any disruption in the normal functioning of the peripheral nervous system can result in numbness, pain, and weakness in your hands and feet as well as other parts of your body. Peripheral nerves are fragile and easily damaged.

Peripheral nerve stimulation is a minimally invasive treatment for chronic pain and pain caused due to peripheral nerve damage. The peripheral nerves connect your brain and spinal cord with the rest of the body. Pain arises from the signals produced by a nerve when it is stimulated by tissue damage or when the nerve itself is damaged (neuropathic pain).

Nerve Conduction Studies are also known as Nerve Conduction Velocity tests (NCV). These tests are performed to measure the speed of an electrical impulse as it moves through your nerves. It is done along with EMG (Electromyography). NCV tests helps to detect the nerve disorders whereas EMG detects muscle co-ordination in response to the nerve stimulus.

An electromyogram (EMG) is a medical test performed to measure the electrical activity of muscles in the body. Nerve conduction studies measure how well and how fast nerves send electrical signals to the muscles. EMG and nerve conduction studies are often done together to provide more in-depth information to the physician.

Electroencephalogram (EEG) is a painless diagnostic procedure that records electrical signals of the brain to assess the brain’s electrical activity that is recorded and displayed on a monitor in a pattern of wavy lines. EEG provides an insight into the function of the brain and helps in differentiating various electrical signals produced by the brain when in a diseased condition.