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Even when acclimatized, prolonged exposure to high altitude can interfere with pregnancy and cause intrauterine growth restriction or pre-eclampsia. [28] High altitude causes decreased blood flow to the placenta, even in acclimatized women, which interferes with fetal growth. [28]
The most serious symptoms of altitude sickness arise from edema (fluid accumulation in the tissues of the body). At very high altitude, humans can get either high-altitude pulmonary edema (HAPE), or high-altitude cerebral edema (HACE). The physiological cause of altitude-induced edema is not conclusively established.
Chronic mountain sickness (CMS) is a disease in which the proportion of blood volume that is occupied by red blood cells increases (polycythaemia) and there is an abnormally low level of oxygen in the blood . CMS typically develops after extended time living at high altitude (over 2,500 metres (8,200 ft)).
With high blood pressure, the force of blood flowing through your blood vessels is consistently too high. Around 75 million Americans have high blood pressure (or hypertension), and almost half of ...
“Although high blood pressure typically causes no symptoms and people may feel perfectly well, long-term high blood pressure has been conclusively shown to damage internal organs, particularly ...
The treatments from your medical provider will differ depending on your blood pressure and accompanying symptoms, if any. High blood pressure can damage multiple organs in the body ...
Re-entry HAPE is also an entity that has been described in persons who normally live at high altitude but who develop pulmonary edema after returning from a stay at low altitude. [3] If HAPE is not treated, there is a 50% risk of mortality. [4] Symptoms include crackling sounds when breathing, dyspnea (at rest), and cyanosis. [4]
DCS most commonly occurs during or soon after a decompression ascent from underwater diving, but can also result from other causes of depressurisation, such as emerging from a caisson, decompression from saturation, flying in an unpressurised aircraft at high altitude, and extravehicular activity from spacecraft.