IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-9-10-32169 Original Research Paper IMPACT OF BALLOON MITRAL VALVOTOMY ON MITRAL ANNULAR SYSTOLIC VELOCITY AND LEFT ATRIAL APPENDAGE LATE EMPTYING VELOCITY IN ISOLATED RHEUMATIC MITRAL STENOSIS Sooraj Menon R Dr. Dr. Prathap Kumar.G Dr. October 2020 9 10 01 02