Fig. 5. Relationship between right ventricle dP/dt maxand PRSW (A ) or PAdP/dt max(B ) of the three different concentrations of each inhalation agent. Lines represent linear correlations with their coefficients of determination of pooled means during control (triangles, solid line ) and following monocrotaline pretreatment (circles, dashed line ). Symbols are the same as in figure 3. Note the very large variability and poor relationship with the PRSW index in monocrotaline treated animals. PAdP/dt max= preload-adjusted dP/dt max; PRSW = preload recruitable stroke work.