Canadian Medical Guide > Diseases > Nervous System Diseases > Central Nervous System Diseases > High Pressure Neurological Syndrome Terms and Definitions

High Pressure Neurological Syndrome

Medical Definition:	A syndrome related to increased atmospheric pressure and characterized by tremors, nausea, dizziness, decreased motor and mental performance, and SEIZURES. This condition may occur in those who dive deeply (c. 1000 ft) usually while breathing a mixture of oxygen and helium. The condition is associated with a neuroexcitatory effect of helium.
Guide Notes:	in divers; do not confuse with INERT GAS NARCOSIS
Also Called:	Experimental High Pressure Neurological Syndrome
Previously Indexed:	Atmospheric Pressure (1966-1985),Central Nervous System Diseases (1966-1985),Diving (1966-1985),Pressure (1966-1985),Syndrome (1972-1985)

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