Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «S»:
SEER: The Surveillance, Epidemiology, and Ends Results (SEER) program that maintains statistics on cancer in the US. SEER is part of the National Cancer Institute. For more information, see: SEER program....
SEER program: The Surveillance, Epidemiology, and End Results (SEER) program of the National Cancer Institute (NCI), an authoritative source of information on cancer incidence and survival in the US. The SEER program is the only comprehensive source of population-based information in the US that inc...
Segawa Dystonia: An important variant form of dopa-responsive dystonia (DRD).
DRD typically begins in childhood or adolescence with progressive difficulty in walking and, in some cases, with spasticity. DRD, by definition, can be successfully treated with dopa.
In Segawa dystonia, the symptoms fluc...
Segment, genomic : A region of the genome; it encompasses objects described as loci or probes. Genomic segments can range in size from points to regions as large as an entire chromosome.
There are many types of genomic regions. On a technical level, they include genes, gene elements, amplimers (PCR ...
Segmental arterial Doppler pressures
Segmental arterial Doppler pressures: A test that measures the blood pressures in the legs to make sure there is normal blood flow. The test is usually done when there is intermittent claudication (leg pain on exercise).
Normally the blood pressures in the legs are similar to those in the arms. Low...
Seizure: Uncontrolled electrical activity in the
brain, which may produce a physical convulsion, minor physical signs,
thought disturbances, or a combination of symptoms.
The type of symptoms and seizures depend on where the abnormal
electrical activity takes place in the brain, what its cause i...
Seizure disorders: One of a great many medical
conditions that are characterized by episodes of
uncontrolled electrical activity in the brain (seizures).
Some seizure disorders are hereditary, but others are
caused by birth defects or environmental hazards, such as
lead poisoning. Seizure diso...
Seizure, absence: See: Absence seizure....
Seizure, astatic: See: Atonic seizure....
Seizure, atonic: See: Atonic seizure....
Seizure, automatic: See: Automatic seizure....
Seizure, centrencephalic: See: Grand mal....
Seizure, clonic: See: Clonic seizure....
Seizure, complex partial
Seizure, complex partial: A form of partial seizure during which the person loses awareness. The patient does not actually become unconscious, and he or she may carry out actions as complex as walking, talking, or driving. The patient may have physical, sensory, and thought disturbances. When the se...
Seizure, febrile: See: Febrile seizure....