Wada test
Wada Test
The Wada Test (pronounced: wah-dah test), also known as the Intracarotid Sodium Amobarbital Procedure (ISAP), is a diagnostic procedure used in neurology and neurosurgery to determine which hemisphere of the brain is responsible for certain functions, such as speech and memory.
Etymology
The Wada Test is named after the Japanese neurologist Juhn Atsushi Wada, who first performed the procedure in 1949. The term "Intracarotid Sodium Amobarbital Procedure" refers to the method of the test, which involves injecting sodium amobarbital into the carotid artery.
Procedure
The Wada Test is performed under local anesthesia. A catheter is inserted into the patient's carotid artery, and a dose of sodium amobarbital is injected. This temporarily anesthetizes one hemisphere of the brain, allowing the neurologist to assess the functioning of the other hemisphere. The patient is asked to perform certain tasks, such as speaking or remembering objects, to determine which hemisphere is responsible for these functions.
Related Terms
- Neurology: The branch of medicine dealing with disorders of the nervous system.
- Neurosurgery: The surgical specialty involved in the treatment of disorders of the brain, spinal cord, and peripheral nerves.
- Brain: The organ of the body which controls all functions, thought, and consciousness.
- Carotid artery: The major artery in the neck that supplies blood to the brain.
- Sodium Amobarbital: A barbiturate that is used as a sedative and an anticonvulsant.
See Also
- Functional MRI: A procedure that measures brain activity by detecting changes associated with blood flow.
- Electroencephalogram: A test that detects electrical activity in your brain using small, metal discs (electrodes) attached to your scalp.
External links
- Medical encyclopedia article on Wada test
- Wikipedia's article - Wada test
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