Evidence for Increased Intrathoracic Fluid Volume in Man at High Altitude,
ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MASS
Pagination or Media Count:
To determine if subclinical pulmonary edema occurs commonly at high altitude, 25 young male soldiers participated in a strenuous, 72 h field exercise at low altitude 200 to 875 m and in a similar exercise one week later at high altitude 3000 to 4300 m. At 0, 36, and 72 h of each phase the subjects were given a physical examination, a chest radiograph was taken, and the following measurements were made total lung capacity, forced vital capacity, residual volume, closing capacity, slope of phase III of the nitrogen washout curve, transthoracic electrical impedance, and the quasi-static relationship between transpulmonary pressure and lung volume PV curve.
- Medicine and Medical Research