14 rezultate
Acute mountain sickness (AMS), high altitude pulmonary edema (HAPE), and high altitude cerebral edema (HACE) are complications of rapid ascent to high altitude. By definition, AMS is a benign condition, but it is likely that the same pathology underlies high altitude cerebral oedema (HACE). In
Acute mountain sickness (AMS) is a common ailment in people venturing over 2500 meters altitude. It is a pathological effect of high altitude on humans, caused by acute exposure to low partial pressure of oxygen at high altitude. It presents as a collection of nonspecific symptoms, acquired at high
Background
Altitude related illness, which include acute mountain sickness (AMS), high altitude pulmonary edema (HAPE) and high altitude cerebral edema (HACE), is common in subjects exposed to high altitude during professional or leisure time activities. There are independent risk factors such as:
Acute mountain sickness (AMS) is a constellation of symptoms including headache, sleep disturbance, fatigue, dizziness, and nausea, vomiting, or anorexia that commonly occurs in travelers ascending to altitudes above 2,500m. AMS incidence varies based on altitude and ascent profile with rates
Acute mountain sickness (AMS) is a pathological effect of high altitude on humans caused by acute exposure to low partial pressure of oxygen at high altitude. It commonly occurs above 2500 meters of altitude. AMS appears as a collection of nonspecific symptoms acquired at high altitude or in low air
The high-altitude pulmonary edema (HAPE) is the leading cause of death from high altitude sickness. At moderate altitude (2500-4500m) the incidence (0.2-6%) may be underestimated because only clinical HAPE leads to symptoms and motivates the patient to seek medical advice. Cremona et al. [Cremona et
Three different types of experiments will be performed:
(A). Testing of Cross corrections breathing air at 8,000 (0.743 ATA) and 10,000 ft (0.688 ATA). Subjects will be decompressed in a hypobaric chamber to one of the altitudes above. A no-stop dive to 60 fsw will be tested at each altitude (2.82
Acetazolamide, or Diamox, is the standard medical prophylaxis agent for high altitude illness. The medication is effective in preventing acute mountain sickness (AMS), high altitude pulmonary edema (HAPE), and high altitude cerebral edema (HACE). Its mechanism is via inhibition of the carbonic
The primary endpoint of this research study is to prove safety in healthy subjects breathing humidified hypoxic inspiratory gas mixture for 5 days.
The secondary endpoint of our study is to describe the physiological and biochemical changes during the 5-day hypoxic period and the 2 days after return
There are many physiological situations in which the organism is exposed to hypoxia, such as exercise and altitude. In addition some pathological situations also involve hypoxia, such as obesity, heart failure, respiratory failure and sleep apnea syndrome.
Hypoxia associated with altitude is
Reactions to acute exposure to high altitude and the process of acclimatization has been of scientific interest since many years. High altitude illnesses are specified by three different entities: acute mountain sickness (AMS), high altitude pulmonary edema (HAPE) and high altitude cerebral edema
A patent foramen ovale (PFO) is present in ~30% of the general population. The PFO has historically been considered to be trivial. However, recent work by the investigator's group and others has identified that, compared to individuals without a PFO, those with a PFO have a higher core body