How would you manage an intermediate-risk segmental PE that is transiently provoked after a knee surgery?  

Segmental suggests small PE and prob intermediate-low risk. But still look at vitals, RV/LV ratio, and clot burden. Again, clot sounds small (no lobar, main PA or saddle, but look for contrast-reflux into IVC/liver. Try to look at RV FUNCTION by echo if possible, and echo also allows ruling out a cl...