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Figure 2 | BMC Cardiovascular Disorders

Figure 2

From: British randomised controlled trial of AV and VV optimization (“BRAVO”) study: rationale, design, and endpoints

Figure 2

Calculating the relative change in systolic blood pressure (Sys BPrel (mmHg) between a reference atrio-ventricular delay (AVD) of 120 ms and a tested AVD of 40 ms. Eight beats from the continuous arterial pressure waveform are averaged from each AVD (top picture), this process is repeated to include a minimum of 6 transitions for each AVD tested (middle picture). SBPrel plotted against the AVD (lower picture) is an average of the change in systolic blood pressure (8-beat average).

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