Coronary flow and left ventricular function during environmental stress.A canine model was used to study the effects of different environmental stresses on the heart and coronary circulation. The heart was surgically instrumented to measure coronary blood flow, left ventricular pressure, and other cardiovascular variables. Coronary flow was recorded by telemetry. Physiologic data were processed and analyzed by analog and digital computers. By these methods the physiologic response to altitude hypoxia, carbon monoxide, hypercapnia, acceleration, exercise, and the interaction of altitude hypoxia and carbon monoxide were described. The effects of some of these stresses on the heart and coronary circulation are discussed.
Document ID
19730038578
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Erickson, H. H.
Adams, J. D. (USAF, School of Aerospace Medicine, Brooks AFB Tex., United States)
Stone, H. L. (USAF, School of Aerospace Medicine, Brooks AFB; Texas, University Galveston, Tex., United States)
Sandler, H. (USAF, School of Aerospace Medicine, Brooks AFB, Tex.; NASA, Ames Research Center Moffett Field, Calif., United States)