Key result
Oxygen inhalation increases ischemic coronary venous oxygen content by ~41% versus room air.
Why the study?
The effect of oxygen inhalation on the stressed ischemic myocardium under pacing-induced conditions was investigated to understand its impact on myocardial oxygenation and function.
Does oxygen inhalation improve coronary venous oxygen content in a canine model of pacing-induced myocardial ischemia?
Population
13 open-chest dogs with partially occluded left anterior descending coronary artery
Comparison
Oxygen inhalation vs room air inhalation
Design
Preclinical experimental study with pacing-induced stress
Authors
Loading...
Supports oxygen in canine ischemic model; hypothesis-generating, requires human trials before any practice consideration.
Does oxygen inhalation improve coronary venous oxygen content in a canine model of pacing-induced myocardial ischemia?
Absolute Event Rate: 3.8% vs 2.7%
Oxygen inhalation increases coronary venous oxygen content in ischemic myocardium during pacing-induced stress in a canine model, suggesting a shift toward a more aerobic state.
Ishikawa et al. (1977) studied Pacing-induced ischemic myocardium (n=13). Oxygen inhalation vs. Room air breathing was evaluated on Coronary venous oxygen content. Oxygen breathing elevated coronary venous oxygen content to 3.8 ml per 100 ml compared to 2.7 ml per 100 ml during room air breathing in dogs with pacing-induced ischemic myocardium.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: