61 yr old hypertensive male has total occlusion of right coronary andom. Stenting of om1 done. Ejection fraction is 45-50%. Is CABG indicated for rca?

Likely no. The damage that could have been done from the occluded rca has already happened, and the vessel can't get worse than totally occluded, so, provided that anginalsymptoms symptoms are controlled there is no need to do anything. Overtime, compensation typically occurs for an occluded vessel in the form of progressive collateral circulation.