On 6月14日, 下午9时33分, Goomba wrote:
Steve Pope wrote:
Mark Thorson wrote:
It now appears to have been a coronary embolism.
http://www.sfgate.com/cgi-bin/blogs/...entry_id=27300
So that type of embolism could have been the consequence
ofdeep-veinthrombosiscaused by the plane flight, true?
Steve
No, those emboli originate elsewhere. Take a gander at the route blood
takes in the body.
Right atrium to right ventricle
Right ventricle to Pulmonary (lungs)
Lungs to left atrium
Left atrium to left ventricle
Left ventricle to body via arteries both up to the brain and down
into the body below, as well as feeding the heart itself via coronary
arteries. Sometimes clots will develop in the heart because of
ineffective atrial beat (Such as a pt with A-fib) that allow blood to
remain in the atrium when it shouldn't, and those clots can go up to the
brain and can cause of an ischemic stroke. This is why patients with a
diagnosis of Atrium Fibrillation are put on blood thinners.
Venous return brings the "used" blood up to the right ventricle again
to start the circuit again. When the venous blood has pooled in the
lower extremities (or occasionally in the upper too) it gets thick and
sticky. The clot can form inside theveinat that point. Something
causes the clot to dislodge and when it goes up into the heart and then
into the lungs and it is too large to pass it occludes the circuit.
All hell breaks out.
A GREAT many people die of these, yet some survive.
Those that survive with live on blood thinners for a long, long time
afterwards. It is felt that all of us survive micro-emboli all the time.
It is the big honkin' clots that kill us.
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