Figure 2

Circumferential strain curves over time after the electrocardiographic R-wave for the left ventricular (LV) and right ventricular (RV) free walls and the septum for 1 patient pre (left) and post (right) PEA. Pre PEA, the LV, RV, and septum start simultaneously with shortening (negative strain), but the RV reaches its peak later than the LV and the RV peak strain is lower. Post PEA, the L-R synchrony and RV peak strain have recovered.