An exploratory analysis of factors affecting HR aspects in high altitude illness attrition

2020 ◽  
Author(s):  
Dheer ◽  
Ajay ◽  
Jha Ajeya ◽  
Mehta Vijay Kumar
Keyword(s):  
High Altitude ◽  
Exploratory Analysis ◽  
Factors Affecting ◽  
High Altitude Illness

scholarly journals The Hen or the Egg: Impaired Alveolar Oxygen Diffusion and Acute High-altitude Illness?

2019 ◽  
Vol 20 (17) ◽  
pp. 4105 ◽  
Author(s):  
Heimo Mairbäurl ◽  
Christoph Dehnert ◽  
Franziska Macholz ◽  
Daniel Dankl ◽  
Mahdi Sareban ◽  
...  
Keyword(s):  
High Altitude ◽  
Acute Mountain Sickness ◽  
Gas Diffusion ◽  
Alveolar Wall ◽  
Factors Affecting ◽  
Alveolar Epithelial ◽  
Arterial Blood ◽  
High Altitude Pulmonary Edema ◽  
High Altitude Illness ◽  
Alveolar Oxygen

Individuals ascending rapidly to altitudes >2500 m may develop symptoms of acute mountain sickness (AMS) within a few hours of arrival and/or high-altitude pulmonary edema (HAPE), which occurs typically during the first three days after reaching altitudes above 3000–3500 m. Both diseases have distinct pathologies, but both present with a pronounced decrease in oxygen saturation of hemoglobin in arterial blood (SO2). This raises the question of mechanisms impairing the diffusion of oxygen (O2) across the alveolar wall and whether the higher degree of hypoxemia is in causal relationship with developing the respective symptoms. In an attempt to answer these questions this article will review factors affecting alveolar gas diffusion, such as alveolar ventilation, the alveolar-to-arterial O2-gradient, and balance between filtration of fluid into the alveolar space and its clearance, and relate them to the respective disease. The resultant analysis reveals that in both AMS and HAPE the main pathophysiologic mechanisms are activated before aggravated decrease in SO2 occurs, indicating that impaired alveolar epithelial function and the resultant diffusion limitation for oxygen may rather be a consequence, not the primary cause, of these altitude-related illnesses.

High-altitude illness

2004 ◽  
Vol 22 (2) ◽  
pp. 329-355 ◽  
Author(s):  
Scott A Gallagher ◽  
Peter H Hackett
Keyword(s):  
High Altitude ◽  
High Altitude Illness

scholarly journals Point-of-Care Ultrasound Diagnosis of Acute High Altitude Illness: A Case Report

2021 ◽  
Author(s):  
Flavia Wipplinger ◽  
Niels Holthof ◽  
Jasmin Lienert ◽  
Anastasia Budowski ◽  
Monika Brodmann Maeder ◽  
...  
Keyword(s):  
Case Report ◽  
High Altitude ◽  
Point Of Care ◽  
Ultrasound Diagnosis ◽  
Point Of Care Ultrasound ◽  
High Altitude Illness

scholarly journals Validation of a Score for the Detection of Subjects with High Risk for Severe High-Altitude Illness

2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Jean-Paul Richalet ◽  
Fabien Pillard ◽  
David Le Moal ◽  
Daniel Rivière ◽  
Philippe Oriol ◽  
...  
Keyword(s):  
High Risk ◽  
High Altitude ◽  
High Altitude Illness

Inter-Relational Dynamics of Various HR Aspects in High Altitude Illness Attrition

2020 ◽  
pp. 114-132
Author(s):  
Ajeya Jha ◽  
Ajay Dheer ◽  
Vijay Kumar Mehta ◽  
Saibal Kumar Saha
Keyword(s):  
Decision Making ◽  
High Altitude ◽  
Poor Performance ◽  
Working Hours ◽  
Poor Quality ◽  
Relational Dynamics ◽  
Adverse Health Effects ◽  
Personal Stress ◽  
High Altitude Illness ◽  
And Performance

The adverse health effects of high altitude are of considerable importance since they may seriously interfere with working efficiency of an organization that is actively involved with inescapable duties. The objective of the current study is to explore inter-relational dynamics of various HR aspects in HAIA. The HR aspects included are job delay, poor team, motivation, less leave, high working hours, poor decision making, personal stress, family stress, personal discomfort, uncertainty, poor relations, health, accidents, quality and performance. A decision-making trial and an evaluation laboratory have been used to explore the inter-relation dynamics of various factors of HR. The results indicate that personal stress has the highest impact priority which is followed by poor performance, poor team and motivation. Uncertainty, less leave, and high working hours has the least impact priority. It is also found that high working hours, less leave and poor health are the major causes whereas decrease in motivation and poor quality of work are the major results.

scholarly journals Acute Lung Edema as a Presentation of Severe Acute Reentry High-Altitude Illness in a Pediatric Patient

2020 ◽  
Vol 2020 ◽  
pp. 1-3
Author(s):  
Alfredo Merino-Luna ◽  
Julio Vizcarra-Anaya
Keyword(s):  
Pulmonary Hypertension ◽  
Pulmonary Edema ◽  
High Altitude ◽  
Sea Level ◽  
Pediatric Patient ◽  
Lung Edema ◽  
High Altitude Pulmonary Edema ◽  
High Altitude Illness ◽  
The City ◽  
Determining Factor

Acute high-altitude pulmonary edema (HAPE) is a pathology involving multifactorial triggers that are associated with ascents to altitudes over 2,500 meters above sea level (m). Here, we report two pediatric cases of reentry HAPE, from the city of Huaraz, Peru, located at 3,052 m. The characteristics of both cases were similar, wherein acclimatization to sea level and a subsequent return to the city of origin occurred, and we speculate that it was caused by activation of predisposing factors to HAPE. The diagnosis and management associated with pulmonary hypertension became a determining factor for therapy.

scholarly journals High-Altitude Illness Death Investigation

2018 ◽  
Vol 8 (1) ◽  
pp. 83-97 ◽  
Author(s):  
Robert A. Kurtzman ◽  
James L. Caruso
Keyword(s):  
High Altitude ◽  
Cerebral Edema ◽  
Acute Mountain Sickness ◽  
Physical Conditioning ◽  
Postmortem Diagnosis ◽  
High Altitude Cerebral Edema ◽  
Diagnosis And Classification ◽  
High Altitude Illness ◽  
Death Investigation ◽  
Medical Examiners

High altitude illness (HAI) is the current accepted clinical term for a group of disorders including acute mountain sickness (AMS), high-altitude cerebral edema (HACE), and high-altitude pulmonary edema (HAPE), which occur in travelers visiting high-altitude locations. High-altitude illness is due to hypobaric hypoxia, is not associated with age or physical conditioning, and mild forms are easily treated. High-altitude cerebral edema and HAPE are medical emergencies that are fatal if not promptly treated and fortunately are uncommon. The cause of most high-altitude fatalities is not related to HAI and can be easily distinguished from HACE and HAPE; however, other causes of death may have symptoms and physical findings that overlap with HAI, making postmortem diagnosis challenging. Fatalities due to HAPE and HACE are diagnoses of exclusion. Medical examiners and coroners who work in jurisdictions with high-altitude locations should be aware of the risk factors, physiology, pathology, differential diagnosis, and classification of HAI to accurately recognize HAI as a cause of death. Medical examiners who do not work in jurisdictions with high-altitude locations may be asked to evaluate deaths that occur overseas associated with high-altitude trekking and mountaineering activities.

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