<prompt> Most common hea disease associated with pregnancy is :Mitral stenosisMitral regurgitationPatent ductus aeriosusTetralogy of fallots  <response>: Ans. is a i.e. Mitral Stenosis In developing countries like India Most common hea disease in pregnancy is of Rheumatic origin, followed by the congenital hea disease. Most common Rheumatic valvular lesion is mitral stenosis in 80 folowed by mitral regurgitation and aoic stenosis. In developed countries : Most common hea disease is congenital hea disease.deg Most common lesion is Atrial septal defect.deg 