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Below normal pressure.

hy′po·bar′ism n.


having less than normal pressure


(ˌhaɪ pəˈbær ɪk)

(of an anesthetic) having a specific gravity lower than that of cerebrospinal fluid.
References in periodicals archive ?
In this model of altitude training athletes live under normoxic conditions and train in a natural, hypobaric or simulated normobaric hypoxic environment.
Previous studies have shown that hypobaric morphine has a longer duration of action compared with morphine plus dextrose when used for thoracotomy (8).
5) However, in hypobaric conditions simulating the height of Mt.
Data thus far are conflicting with regard to whether hypobaric hypoxia in the airplane cabin leads to activation of the coagulation system, Dr.
Dore-Duffy P, Balabanov R, Beaumont T, et al: Endothelial activation following prolonged hypobaric hypoxia.
This hypobaric exposure provides exceptional training for initial students, but adds unnecessary risk to refresher students when they return for their required training every four years.
7) observed that VEGF mRNA expression increased in left and right ventricle of the rat heart in the first and 8th days of hypobaric hypoxia, respectively with no increase in the VEGF protein level.
Our core technologies in TSG include the design, manufacture and sale of training services which includes (1) software driven products and services used to create and monitor the physiological effects of flight; (2) high performance jet tactical flight simulation, and; (3) driving and disaster simulation systems, and in CSG include: (1) steam and gas sterilization; (2) testing and simulation devices for the automotive industry, and; (3) hyperbaric and hypobaric chambers.
The first-ever ambulatory blood pressure (ABPM) study conducted at high and very high altitude investigated treatment with telmisartan and showed that:1 * in conditions of hypobaric hypoxia (oxygen deficiency), 24-hour blood pressure increased in a sustained manner proportional to the altitude reached * the effects of hypobaric hypoxia at high altitude are similar to the effects of reduced oxygen availability observed in diseases associated with respiratory disorders, such as chronic heart failure (CHF), chronic obstructive pulmonary disease (COPD), arterial hypertension related to sleep apnea syndrome and/or severe obesity.
Using a small dose of either hypobaric or hyperbaric local anaesthetic injected at low speed through a directed needle in patients lying in the lateral position for 15 to 30 minutes can result in preferential development of spinal anaesthesia on the operated side.