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RV function and hypertrophy. In sham-operated and PH pigs, myocardial performance index (MPI) was measured as an index of RV contractile reserve (A) and RV longitudinal strain was assessed (B). C: RV hypertrophy was evaluated by RV weight relative to left ventricle (LV) + septum (Fulton index) and indexed for body weight. D: RV weight. *P < 0.05 vs. PH-NF or vs. sham.
