Abstract
We evaluated the acute effect of the application of positive end-expiratory pressure (PEEP) on LV diastolic function in 10 healthy subjects. We assessed load dependent diastolic function by Doppler examination of transmitral flow and load independent diastolic function by color M-mode propagation velocity of early flow into the LV cavity (Vp). During the application of PEEP in comparison to the baseline, we found a significant reduction of the E wave peak velocity [79 (64–83) vs. 65 (57–72) cm/s; p = 0.028] and a significant reduction in Vp [84 (73–97) vs. 53 (48–66); p = 0.012]. Moreover, we found a significant reduction in left atrial area [15 (13–18) vs. 12 (10–14) cm2; p = 0.018] and right atrial area [12 (11–15) vs. 11 (9–12) cm2; p = 0.015]. No difference was found in global LV systolic function. The application of PEEP acutely modifies the diastolic flow pattern across the mitral valve, and reduces atrial dimensions.
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The work was presented in part as an oral communication at the 2004 SMART.
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Maestroni, A., Aliberti, S., Amir, O. et al. Acute effects of positive end-expiratory pressure on left ventricle diastolic function in healthy subjects. Intern Emerg Med 4, 249–254 (2009). https://doi.org/10.1007/s11739-009-0255-2
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DOI: https://doi.org/10.1007/s11739-009-0255-2