This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical & Surgical Illness Complication Pregnancy, Subject name: Gynaecology & Obstetrics
Most common heart disease associated with pregnancy is: 
Select and explain. 
A. Mitral stenosis, B. Mitral regurgitation, C. Patent ductus arteriosus, D. Tatralogy of Fallot
A: Mitral stenosis
Answer: A: Mitral stenosis 
Explanation: Ans. is a, i.e. Mitral stenosisRef. Dutta Obs. 7/e, p 275; Fernando Arias 3/e, p 522In developing countries like India:Most common heart disease in pregnancy is of rheumatic origin, followed by the congenital heart disease.Most common rheumatic valvular lesion is mitral stenosis (in 80%) followed by mitral regurgitation and aortic stenosis.In developed countries:Most common heart disease is congenital heart disease QMost common lesion is Atrial septal defect Q