My mother is leading a normal life and has no symptoms related to heart disease . When on a yearly health check up TMT test showed positive hence we got angiogram done and has LMCA distal segment has 60% stenosis LAD type 3 vessel and proximal LAD has 70% stenosis ,D1(2.25mm)vessel and Ostial segment has 90% stenosis . LCX non dominant and proximal segment has 70% stenosis . RCA dominant and mid segment has 20% stenosis ..... is bypass surgery a must or any other alternative to it ? Thank you in advance