Key result
Positive-pressure ventilation does not decrease cardiac output or alter pericardial pressure during acute tamponade in dogs.
Why the study?
Do IPPV and HFPPV decrease cardiac output compared to spontaneous breathing in dogs with acute cardiac tamponade?
Do IPPV and HFPPV decrease cardiac output compared to spontaneous breathing in dogs with acute cardiac tamponade?
In a canine model of acute cardiac tamponade, both conventional and high-frequency positive-pressure ventilation did not worsen cardiac output compared to spontaneous breathing.
Answers are grounded in this paper and cite their sources.
Positive-pressure ventilation may be used in acute tamponade; supports canine data but should not yet change clinical practice.
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Breivik et al. (1983) studied this question. Intermittent and high-frequency positive-pressure ventilation do not decrease cardiac output or alter pericardial pressure during acute cardiac tamponade in dogs.
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