Reduction of pressure.
A controlled reduction of atmospheric pressure which occurs as a diver returns to the surface.
The reduction of pressure on an organ or part of the body by surgical intervention. Surgical decompression can be effected at many sites: the pressure of tissues on a nerve may be relieved by incision; raised pressure in the fluid of the brain can be lowered by cutting into the dura mater; and cardiac compression (the abnormal presence of blood or fluid around the heart) can be cured by cutting the sac (pericardium) enclosing the heart.
The removal of pressure, as from gas in the intestinal tract.
A surgical procedure, such as disk removal, aimed at alleviating compression on the nerve roots of the spinal column.
The alleviation of pressure, commonly through a surgical procedure that aims to relieve brain pressure by creating burr holes in the skull or lifting a sunken skull fracture. The term is also used for the gradual re-acclimatization to normal atmospheric pressure for divers and caisson workers who have been in high-pressure environments.