Key result
Mitral valve replacement patients tolerated positive end expiratory pressure up to 2.0 kPa better than aortocoronary bypass or aortic valve replacement patients.
Why the study?
Does tolerance to positive end expiratory pressure (PEEP) up to 2.0 kPa vary among patients who have undergone aortocoronary bypass graft, mitral valve replacement, or aortic valve replacement?
Population
15 patients who have undergone open heart surgery
Comparison
Positive end expiratory pressure up to 2.0 kPa vs Comparison between the three surgical groups
Design
Cohort
Authors
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May support higher PEEP targets after mitral valve replacement; leaves open optimal post-cardiac surgery ventilation pending larger prospective studies.
Does tolerance to positive end expiratory pressure (PEEP) up to 2.0 kPa vary among patients who have undergone aortocoronary bypass graft, mitral valve replacement, or aortic valve replacement?
Tolerance to PEEP varies by the type of open heart surgery, with mitral valve replacement patients showing better tolerance linked to higher pulmonary capillary wedge pressure.
Harboe et al. (1979) studied Post open heart surgery (n=15). Positive end expiratory pressure (PEEP) vs. Comparison between surgery types (ACBG vs MVR vs AVR) was evaluated on Tolerance to PEEP. Mitral valve replacement patients tolerated positive end expiratory pressure up to 2.0 kPa better than aortocoronary bypass or aortic valve replacement patients.
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