Human Heart Weight at High Altitude

Human heart weight at high altitude.

The weight of the right ventricle, left ventricle, and septum determined in 98 hearts of high altitude (12,300 feet) residents in Peru and in 86 hearts from sea level in the continental United States revealed that right ventricular hypertrophy is no greater at high altitude than at sea level in the stillborn-newborn infant heart. Right ventricular weight relative to total heart weight at high a...

The heart at high altitude.

On August 8, 1786 Michel Gabriel Paccard, the village doctor in Chamonix, with his guide Jacques Balmat, made the first ascent of Mont Blanc, and reached a height at which scientific opinion of the day considered life to be insupportable. Since that date the ways in which the body adapts to high altitude have interested in turn the physiologist, the mountaineer, the aviator, and now the cardiol...

Methods of human studies at high altitude.

A Numerical Simulation of Inspiratory Airflow in Human Airways during Exercise at Sea Level and at High Altitude

At high altitudes, the air pressure is much lower than it is at sea level and contains fewer oxygen molecules and less oxygen is taken in at each breath. This requires deeper and rapid breathing to get the same amount of oxygen into the blood stream compared to breathing in air at sea level. Exercises increase the oxygen demand and make breathing more difficult at high altitude. In this study, ...

Cerebral Venous Sinus Thrombosis Masquerading as High Altitude Cerebral Edema at Extreme Altitude

Introduction: Extreme altitude travel has gained popularity globally for adventurous, scientific, and military endeavors. Cerebral venous sinus thrombosis (CVST) at extreme altitude is a rare, covert, and emergent condition requiring immediate intervention. Case Presentation: A case of CVST masqueraded as high altitude cerebral edema (HACE) at 6700 m/22000 ft i...