<prompt> With which heart diseases in Pregnancy is prognosis worst:Eisenmengers syndromeAortic StenosisMitral StenosisMVP  <response>: Ans. a Eisenmengers syndrome. Ref. Textbook of obstetrics D C Dutta 6th ed. 296HEART DISEASE IN PREGNANCY The risk of fetal congenital malformations is increased by 3-10 if either parents have congenital lesions. In mother with AV septal defect, risk of having concordant abnormality in baby is very much high. Most common heart disease in pregnancy is mitral stenosis. Most common congenital heart disease during pregnancy is ASD. Absolute indications for termination of pregnancy are primary pulmonary hypertension, and Eisenmengers syndrome as maternal mortality is otherwise found to be highest in them. 