Tio I, Tewari K, Balderston K D, Milliken J C, Porto M
Department of Obstetrics and Gynecology, University of California, Irvine, Medical Center, Orange 92868, USA.
Am J Obstet Gynecol. 1998 Jul;179(1):270-2. doi: 10.1016/s0002-9378(98)70288-1.
A case of critical mitral stenosis with severe pulmonary hypertension in a twin pregnancy is presented. On therapeutic evacuation at 15 weeks' gestation the patient became critically unstable, necessitating emergency open heart surgery with mitral valve replacement.