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Lung disease at high altitude.

R B Schoene1

  • 1Division of Pulmonary and Critical Care Medicine, University of Washington, Providence/Seattle Medical Center 98124, USA.

Advances in Experimental Medicine and Biology
|January 15, 2000
PubMed
Summary

High altitude exacerbates lung disease, impacting oxygen transfer. This review covers responses to altitude in patients with pre-existing lung conditions, offering guidance for medical practitioners.

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Area of Science:

  • Pulmonary Medicine
  • Altitude Physiology
  • Respiratory Diseases

Background:

  • The lungs facilitate oxygen diffusion, a process challenged by disease and lower atmospheric pressure at high altitudes.
  • Hypoxemia can worsen in individuals with lung disease at high altitudes due to reduced oxygen availability.
  • Understanding high-altitude effects is crucial for managing respiratory health in diverse environments.

Purpose of the Study:

  • To review the pulmonary system's responses to high altitude, focusing on abnormal conditions.
  • To provide medical practitioners with insights into preventing, recognizing, and treating high-altitude pulmonary issues.
  • To guide the management of patients with lung disease planning travel to high altitudes or air travel.

Main Methods:

  • Review of acute and chronic responses in patients with pre-existing lung disease at high altitude.
  • Discussion of gas exchange, lung mechanics, and treatment strategies for various lung conditions at high altitude.
  • Examination of ventilatory control disorders and infectious/vascular lung diseases in the high-altitude context.

Main Results:

  • High altitude presents significant challenges for individuals with obstructive (asthma, COPD) and restrictive lung diseases.
  • Ventilatory control disorders like obesity-hypoventilation syndrome and sleep apnea require specific management strategies.
  • Pulmonary vascular disorders exhibit accentuated hypoxic responses at high altitude, necessitating specialized attention.

Conclusions:

  • Medical practitioners need comprehensive knowledge to manage pulmonary complications in patients at high altitudes.
  • Guidance is essential for advising patients with lung disease on the risks and precautions for high-altitude exposure and air travel.
  • Effective prevention, recognition, and treatment protocols are vital for improving outcomes in high-altitude pulmonary medicine.

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