Air embolism
How serious is it?
The seriousness of the blockage depends on which part of the body the affected blood vessel supplies blood to and the size of the air bubble. For example, an air embolism in:
- the arteries to the brain can cause immediate loss of consciousness and may lead to seizures (fits) or a Heat exhaustion and heatstroke it can also cause confusion, dizziness and slurred speech
- the coronary arteries (which lead to the heart) may cause a heart attack or an abnormal heart rhythm
- a blood vessel to the lungs may cause a pulmonary embolism
These conditions are very serious and can be fatal, particularly if an air embolism is not recognised and treated promptly.
Even with treatment, some people who survive are left with permanent brain damage, although this is very rare.
Medically Reviewed by a doctor on 21 Dec 2018
Introduction
An air or gas embolism is a serious problem that can affect scuba divers. Read about the causes, symptoms and treatments.
How serious is it?
The seriousness of the blockage depends on which part of the body the affected blood vessel supplies blood to and the size of the air bubble. For example, an air embolism in: the arteries to the bra
Warning signs
Divers should always be carefully monitored by their colleagues and supervisors so any air or gas embolism can be immediately identified and treated. Signs and symptoms of an air embolism can include
Treating air embolisms
If a diver develops an air embolism, the only effective treatment is immediate recompression treatment in a special pressurised room called a hyperbaric chamber. The diver should be given 100% oxygen
Preventing an air embolism while diving
The following advice can help reduce your risk of developing an air or gas embolism when diving. Limit the depth and duration of your dives. Come up to the surface slowly and always perform safety
Other causes of air embolisms
Air embolisms alsooccur during surgery or other medical procedures, but this is rare. In hospitals and health centres, care should be taken to prevent this. For example: before injections, air shou
How serious is it?
The seriousness of the blockage depends on which part of the body the affected blood vessel supplies blood to and the size of the air bubble. For example, an air embolism in: the arteries to the bra
Warning signs
Divers should always be carefully monitored by their colleagues and supervisors so any air or gas embolism can be immediately identified and treated. Signs and symptoms of an air embolism can include
Treating air embolisms
If a diver develops an air embolism, the only effective treatment is immediate recompression treatment in a special pressurised room called a hyperbaric chamber. The diver should be given 100% oxygen
Preventing an air embolism while diving
The following advice can help reduce your risk of developing an air or gas embolism when diving. Limit the depth and duration of your dives. Come up to the surface slowly and always perform safety
Other causes of air embolisms
Air embolisms alsooccur during surgery or other medical procedures, but this is rare. In hospitals and health centres, care should be taken to prevent this. For example: before injections, air shou
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