BAROTRAUMA FORUM SKIN

Paranasal sinuses (causing aerosinusitis).Middle ear and inner ear (barotitis or aerotitis).

2.4 Rapid pressurisation of an artificial environmentĮxamples of organs or tissues easily damaged by barotrauma are:.

2.3 Rapid decompression of a pressurised artificial environment.

Bats can be killed by lung barotrauma when flying in low-pressure regions close to operating wind-turbine blades, and fish with sealed swim bladders experience barotrauma when pulled up from the depths. Barotrauma due to overexpansion of an internal gas-filled space may also be termed volutrauma. Ventilator-induced lung injury (VILI) is a condition caused by over-expansion of the lungs by mechanical ventilation used when the body is unable to breathe for itself and is associated with relatively large tidal volumes and relatively high peak pressures. īarotrauma typically occurs when the organism is exposed to a significant change in ambient pressure, such as when a scuba diver, a free-diver or an airplane passenger ascends or descends or during uncontrolled decompression of a pressure vessel such as a diving chamber or pressurised aircraft, but can also be caused by a shock wave. It is also classified under the broader term of Dysbarism, which covers all medical conditions resulting from changes of ambient pressure. Decompression illness is a term which includes decompression sickness and arterial gas embolism caused by lung overexpansion barotrauma. Decompression sickness is indirectly caused by ambient pressure reduction, and the tissue damage is caused directly and indirectly by gas bubbles, but these bubbles form out of supersaturated solution from dissolved gases, and are not generally considered barotrauma.

Tissue rupture may be complicated by the introduction of gas into the local tissue or circulation through the initial trauma site, which can cause blockage of circulation at distant sites or interfere with normal function of an organ by its presence.īarotrauma generally manifests as sinus or middle ear effects, lung overpressure injuries and injuries resulting from external squeezes. The initial damage is usually due to over-stretching the tissues in tension or shear, either directly by expansion of the gas in the closed space or by pressure difference hydrostatically transmitted through the tissue. Pressure difference between the environment and a gas filled space in or in contact with the affected tissuesīarotrauma is physical damage to body tissues caused by a difference in pressure between a gas space inside, or in contact with, the body, and the surrounding gas or fluid.

BAROTRAUMA FORUM SKIN

Eye and surrounding skin showing petechial and subconjunctival haemmorhagesĪrterial gas embolism, pneumothorax, mediastinal emphysema Mild barotrauma to a diver caused by mask squeeze. Squeeze, decompression illness, lung overpressure injury, volutrauma

Barotrauma forum