| AMS |
In
the setting of a recent gain in altitude, the presence of headache
and at least one of the following symptoms:
|
-
gastrointestinal (anorexia, nausea or vomiting)
- fatigue or weakness
- dizziness or lightheadedness
- difficulty sleeping |
|
| HACE |
Can
be considered "end stage" or severe AMS. In the setting of a recent
gain in altitude, either:
|
-
the presence of a change in mental status and/or ataxia
in a person with AMS
- or, the presence of both mental status changes
and ataxia in a person without AMS |
|
| HAPE |
In
the setting of a recent gain in altitude, the presence of the following:
|
Symptoms:
at least two of: |
|
|
-
dyspnea at rest
- cough
- weakness or decreased exercise performance
- chest tightness or congestion |
|
Signs:
at least two of: |
|
|
-
crackles or wheezing in at least one lung field
- central cyanosis
- tachypnea
- tachycardia |
|
The
symposium consensus committee also developed an AMS scoring system (the
"Lake Louise score") which is widely used today to assess the severity
of illness. We have developed a clinical
worksheet, which uses the Lake Louise scoring system.
Reference:
"The Lake Louise Consensus on the Definition and Quantification of Altitude
Illness" in Sutton JR, Coates G, Houston CS (eds), Hypoxia and Mountain
Medicine. Queen City Printers, Burlington, Vermont, 1992.
|
