English to Norwegian Medical Medical: Cardiology surgery

This is a technique used in mitral valve surgery:

"Authors concluded that double orifice, double leaflet technique versus Uni-leaflet, Uni-orifice technique provide comparable long-term results."

"Despite the rationale is completely different in both techniques (double orifice, double leaflet versus Uni-leaflet, Uni-orifice), the long-term results are comparable in both."

I don't know if I should translate it or leave it in English, ie. "double orifice, double leaflet versus Uni-leaflet, Uni-orifice"-teknikken".