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Neurosciences

Neurosciences refers to the branch of medicine that focuses on the nervous system. The nervous system is made of two parts:

  • The central nervous system consists of your brain and spinal cord.
  • The peripheral nervous system consists of all your nerves outside of the brain and spinal cord including, including those in your arms, legs and trunk of the body.

Together, your brain and spinal cord serve as the main "processing center" for the entire nervous system, and control all the functions of your body.

Information

A number of different medical conditions can affect the nervous system, including:

DIAGNOSIS AND TESTING

Neurologists and other neuroscience specialists use special tests and imaging techniques to see how the nerves and brain are working.

In addition to blood and urine tests, tests done to diagnose nervous system diseases may include:

  • Computed tomography (CT scan)
  • Discography (x-ray of the spinal discs) to determine the cause of low back pain
  • Lumbar puncture (spinal tap) to check for infections of the spinal cord and brain
  • Magnetic resonance angiography (MRA)
  • Electroencephalography (EEG) to look at brain activity
  • Electromyography (EMG) to test nerve and muscle function
  • Electronystagmography (ENG) to check for abnormal eye movements, which can be a sign of a brain disorder
  • Evoked potentials (or evoked response), which looks at how the brain responds to sounds, sight, and touch
  • Magnetoencephalography (MEG)
  • Myelogram of the spine to diagnose nerve injury
  • Nerve conduction velocity (NCV) test
  • Neurocognitive testing (neuropsychological testing)
  • Polysomnogram to see how the brain reacts during sleep
  • Position emission tomography (PET) scan to look at brain metabolic activity

TREATMENT

Neuroradiology is a branch of neuroscience medicine that focuses on diagnosing and treating nervous system problems.

Interventional neuroradiology involves inserting tiny, flexible tubes called catheters into blood vessels in the groin area and up into the blood vessels leading to the brain. This allows the doctor to treat blood vessel disorders that can affect the nervous system, such as stroke.

Interventional neuroradiology (or vascular therapy) treatments include:

  • Balloon angioplasty and stenting of carotid or vertebral artery
  • Endovascular embolization and coiling to treat cerebral aneurysms
  • Intra-arterial therapy for stroke
  • Radiation oncology of the brain and spine

Open or traditional neurosurgery may be needed in some cases to treat problems in the brain and surrounding structures. This is more invasive surgery that requires the surgeon to make an opening, called a craniotomy , in the skull.

Microsurgery allows the surgeon to work on very small structures in the brain using a microscope and very small, precise instruments.

Stereotactic radiosurgery may be needed for certain types of nervous system disorders. This is a form of radiation therapy that focuses high-powered x-rays on a small area of the body, thereby avoiding damage to surrounding brain tissue.

Treatment of nervous system-related diseases or disorders varies may also include:

  • Medications, possibly given by a drug pumps (such as those used for patients with severe muscle spasms)
  • Deep brain stimulation
  • Rehabilitation/physical therapy after brain injuries or stroke
  • Spinal surgery

WHO IS INVOLVED

The neurosciences medical team is often made up of health care providers from many different specialties. This may include:

  • Neurologist: A doctor specialist who has received extra training in the treatment of brain and nervous system disorders
  • Vascular surgeon: A doctor who has received extra training in the surgical treatment of blood vessel disorders
  • Neurosurgeon: A doctor who has received extra training in brain and spine surgery
  • Neuropsychologist: A doctor specially trained in administering and interpreting tests of the cognitive function of the brain
  • Radiologist: A doctor who received extra training in interpreting medical images and in performing different procedures using imaging technology specifically for treating brain and nervous system disorders
  • Nurse practitioners (NPs)
  • Physician assistants (PAs)
  • Nutritionists or dietitians
  • Primary care doctors
  • Physical therapists, who help with mobility, strength, balance, and flexibility
  • Occupational therapists, who help keep people functioning well in the home and at work
  • Speech-language therapists, who help with speech, language, and understanding

This list is not all-inclusive.

Updated: 2/28/2012

Luc Jasmin, MD, PhD, Department of Neurosurgery at Cedars-Sinai Medical Center, Los Angeles, and Department of Anatomy at UCSF, San Francisco, CA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.


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