Why the study?
Do different respirator adjustments (IPPPV, IPNPV) compared to spontaneous respiration affect central hemodynamics in open-heart surgery patients?
Population
17 patients undergoing aortic valve replacement or myocardial revascularization
Comparison
Intermittent positive pressure ventilation and… vs Spontaneous respiration (SR)
Design
Cohort
Follow-up
First postoperative day
Authors
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IPPPV was associated with lower cardiac index after open-heart surgery; leaves open optimal ventilation strategies for hemodynamic stability.
Do different respirator adjustments (IPPPV, IPNPV) compared to spontaneous respiration affect central hemodynamics in open-heart surgery patients?
Different ventilation modes significantly alter central hemodynamics post-cardiac surgery, and weaning to spontaneous respiration poses a risk of pulmonary congestion that can be predicted by pulmonary wedge pressure.
Laaksonen et al. (1977) studied this question.
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