Sobrepresion Pulmonar

La sobrepresión pulmonar

Pulmonary overpressure (or overexpansion) (SSP) is one of the most serious accidents that the diver can suffer during the ascent to the surface.
Consequently, it is convenient to know what produces it and how we must act before its presence; With this objective we carry out this section.

What is pulmonary overpressure?
When starting the ascent, the external pressure decreases.
A lung overpressure accident happens when, for some reason (conscious or not), we ascend with blocked breathing and quickly. If this occurs, the pulmonary air, stored under pressure at the bottom, expands as this pressure is reduced.
If we do not perform regular breathing, we will not evacuate the air and this will subject the lungs to an overpressure equal to or above its elasticity limit, causing a tear in the pulmonary alveoli.
In this situation the gas exchanges no longer take place and it is when the asphyxiation occurs that, according to its severity, can lead to death risk.
It is advisable to know the possible symptoms:

Choking sensation
Cough.
Appearance of foam at the corner of the lips (sometimes and in more alarming cases, blood may appear).
Complete hemiplegia (paralysis of one side of the body).
Vomiting
Loss of consciousness
State of shock.
Possible consequences
The type and severity of the damage suffered will depend on where the air contained in the lungs comes out, as well as where it goes.
The most serious consequences are the following:

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