Altitude and blood flow

A forum to discuss Chronic Cerebrospinal Venous Insufficiency and its relationship to Multiple Sclerosis.

Re: Altitude and blood flow

Postby koneall » Tue Aug 29, 2017 9:57 am

I've lived in Wyoming for 35 years around 7000 feet above sea level. I've donated blood every three to four months for the entire time I've lived here. No reason other than hoping blood could help someone. I was diagnosed with MS in late June. Confirmed by multiple MRIs. I had an attack of vertigo, three days later I was fine and no problems since. I wonder if chronic phlebotomy coupled with altitude is why I haven't had more signs. Also I'm a long distance runner. Quit counting marathons when I passed #50 and switched to ultras 5 years ago. My wife thinks the exercise is why I've been symptom-free.

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Re: Altitude and blood flow

Postby 1eye » Mon Sep 18, 2017 7:39 am

Changes in air pressure are much more likely to affect venous blood pressure, which is low to start with. If the problem occurs because the venous pressure inside the skull is high, then higher altitudes may relieve it, because the pressure will be lower. Cabin pressures inside an airplane may be higher or lower than one atmosphere, so your mileage may vary.

Arterial blood pressure is much higher, measured using inches of mercury, much heavier than inches of water, which venous blood pressure uses.
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Re: Altitude and blood flow

Postby theskyking » Mon Sep 18, 2017 10:19 am

I'm just trying to decide whether living at 6500 feet my whole life, has HELPED or HURT my health and neurological issues.
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