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. Author manuscript; available in PMC: 2016 Oct 6.
Published in final edited form as: HeartRhythm Case Rep. 2015 Sep 3;1(6):429–433. doi: 10.1016/j.hrcr.2015.05.006

Figure 3.

Figure 3

Impact of parahisian pacing on regional left ventricular (LV) deformation on echocardiographic strain imaging. The top panels on the left and right show longitudinal (3-chamber) images of the left ventricle at peak contraction before and after initiation of parahisian pacing. Regional LV deformation is shown for each region (expressed in negative % deformation). The bottom panels show regional strain profiles of each region before and after parahisian pacing; these are more uniform following pacing. BIS = basal inferoseptal; MIS = mid inferoseptal; ApS = apicoseptum, ApL = apicolateral; MAL = mid anterolateral; BAL = basal anterolateral.