Pulmonary vascular resistance in group with mild mitral stenosis was 2.55 ± 0.97 (Wood), in group with moderate mitral stenosis was 2.71 ± 1.27 (Wood) and in group with severe mitral stenosis was 3.70 ± 1, 24 (Wood).
Sức cản mạch phổi của nhóm bệnh hẹp van hai lá nhẹ là 2,55 ± 0,97 (UI Wood), hẹp vừa là 2,71 ± 1,27 (UI Wood) và nhóm hẹp khít là 3,70 ± 1,24 (UI Wood).