As always - physicians please feel free to correct my physiology!
As I understand it PE is a blockage in a pulmonary artery, not to be confused with Arterial Gas Embolism (or Air Embolism), which is often a result of lung overexpansion injuries. The article posted by broadreach suggests a common cause of PE is a Deep Vein Thrombosis which suddenly travels from the leg and ends up lodged in a lung artery.The lady in question was 59 and I mean no disrespect whatsoever by referring to her age, but the DVT is more common in those who are not-so-young-as-they-used-to-be. Pulmonary Edema (Oedema) is, I believe, associated with high blood pressure - a pre-existing medical condition that leads to a more serious problem, rather like the DVT and subsequent PE.
I'm not trying to argue the case, just trying to get as much information as possible from the article. It does not, for example, say that everything was fine until they hit 30 metres, it says:
So all was good after several metres, but by 30 metres, she was already in trouble. Not saying it's not Narcosis, but to do nothing would be an odd reaction. The dive guide surfaced them slowly and safely, and therefore if it was indeed a lung overexpansion injury, there MUST have been some other problem to cause it. PE is a blockage of an artery, not a blockage in the airways themselves. Perhaps the condition was underlying, perhaps it was spontaneous. I just don't think it can be easily explained as "narcosis and lung overexpansion"
Anyway, next time I see Dr. Adel (the egyptian physicist who treated her), I will ask him.
Sorry for the ramble, not much to do this evening!
Cheers,
C.
As I understand it PE is a blockage in a pulmonary artery, not to be confused with Arterial Gas Embolism (or Air Embolism), which is often a result of lung overexpansion injuries. The article posted by broadreach suggests a common cause of PE is a Deep Vein Thrombosis which suddenly travels from the leg and ends up lodged in a lung artery.The lady in question was 59 and I mean no disrespect whatsoever by referring to her age, but the DVT is more common in those who are not-so-young-as-they-used-to-be. Pulmonary Edema (Oedema) is, I believe, associated with high blood pressure - a pre-existing medical condition that leads to a more serious problem, rather like the DVT and subsequent PE.
I'm not trying to argue the case, just trying to get as much information as possible from the article. It does not, for example, say that everything was fine until they hit 30 metres, it says:
"After descending for several meters I checked with Sue that everything was OK and she signaled me to continue diving. When I reached a depth of 30 meters I noticed that she continued descending fast, I tried to signal her but she did not respond."
So all was good after several metres, but by 30 metres, she was already in trouble. Not saying it's not Narcosis, but to do nothing would be an odd reaction. The dive guide surfaced them slowly and safely, and therefore if it was indeed a lung overexpansion injury, there MUST have been some other problem to cause it. PE is a blockage of an artery, not a blockage in the airways themselves. Perhaps the condition was underlying, perhaps it was spontaneous. I just don't think it can be easily explained as "narcosis and lung overexpansion"
Anyway, next time I see Dr. Adel (the egyptian physicist who treated her), I will ask him.
Sorry for the ramble, not much to do this evening!
Cheers,
C.