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. 2022 Jun 20;9:861064. doi: 10.3389/fvets.2022.861064

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Copyright © 2022 Morita, Nakamura, Osuga, Kawamoto, Miki and Takiguchi.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Representative images of speckle tracking echocardiography at baseline (A) acute period (B) and compensation period (C). (A) Global RVLS was −9.6% and RV-SD6 was 16.8 msec at baseline. (B) In acute period, global RVLS was significantly impaired compared with baseline (– 6.4%). Systolic shortening times of free wall were delayed (white arrows), and RV-SD6 was increased (81.5 msec). (C) In compensation period, global RVLS and RV-SD6 were returned to the baseline level (−8.6% and 10.1 msec). White color curve indicates global RVLS. RVLS, right ventricular longitudinal strain; RV-SD6, standard deviation of systolic shortening time of right ventricular six segments.