Abstract
Objective: To examine acute mountain sickness (AMS) in Jade mountain climbers using oxygen saturation (SpO2) at different altitudes.
Methods: Twenty-six climbers (12 female, 14 male) aged 29 to 70 years (mean 45.88±9.7) were enrolled. All lived below 1 km. AMS was diagnosed using the Lake Louise Consensus. A climber with at least one high altitude symptom was defined as having high altitude syndrome (HAS). Levels of SpO2 and answers to AMS questionnaires were recorded at different altitudes.
Results: The most common high altitude symptom was insomnia, then headache and nausea. The HAS and AMS prevalence rates were 80.8% and 34.6%, respectively. The average SpO2 level at Jade Mountain peak was 84.19±5.39%. The lower the SpO2 level at the entrance of Jade Mountain (2659 m), the higher the Lake Louise AMS score (LLAMSS) (r=-0.215, P=0.047). The greater decline in SpO2 level between the entrance of Jade Mountain and sea-level, the greater the risk of HAS (×1.8) and AMS (×2.0).
Conclusions: A large decline in SpO2 level between the entrance of Jade Mountain and sea-level positively correlated with the incidence rates for HAS and AMS.
Methods: Twenty-six climbers (12 female, 14 male) aged 29 to 70 years (mean 45.88±9.7) were enrolled. All lived below 1 km. AMS was diagnosed using the Lake Louise Consensus. A climber with at least one high altitude symptom was defined as having high altitude syndrome (HAS). Levels of SpO2 and answers to AMS questionnaires were recorded at different altitudes.
Results: The most common high altitude symptom was insomnia, then headache and nausea. The HAS and AMS prevalence rates were 80.8% and 34.6%, respectively. The average SpO2 level at Jade Mountain peak was 84.19±5.39%. The lower the SpO2 level at the entrance of Jade Mountain (2659 m), the higher the Lake Louise AMS score (LLAMSS) (r=-0.215, P=0.047). The greater decline in SpO2 level between the entrance of Jade Mountain and sea-level, the greater the risk of HAS (×1.8) and AMS (×2.0).
Conclusions: A large decline in SpO2 level between the entrance of Jade Mountain and sea-level positively correlated with the incidence rates for HAS and AMS.
Translated title of the contribution | Predicting Acute Mountain Sickness Susceptibility in Jade Mountain Climbers by Oxygen Saturation at Mountain Entrance and Sea-level |
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Original language | Chinese (Traditional) |
Pages (from-to) | 47-54 |
Number of pages | 8 |
Journal | 中華民國急救加護醫學會雜誌 |
Volume | 17 |
Issue number | 2 |
DOIs | |
State | Published - 1 Jun 2006 |
Keywords
- acute mountain sickness
- oxygen saturation
- Jade Mountain
- high altitude syndrome