The influence of pacing on the pre‐ejection period

Reply

“…Although not indicated by the sparse data, the measured PEP may be affected by the AV pacing type analogous to the suggested effect of V pacing 1 . In this case, where the PEP may be prolonged because of the altered course of depolarization, the originally proposed PEP variation parameter (ΔPEP) would be affected because of ΔPEP's direct dependence on absolute PEP values (division by the mean PEP).…”

“…We appreciate the comments by Dr Lansdorp and colleagues 1 , who wish to know which types of pacing were used in our recently published clinical investigation 2 and whether or not the pacing type influenced the results of our study that investigated the ability of a new version of the pre‐ejection period (PEP) variation (PEPV) to predict fluid responsiveness.…”