A 69-year-old man with no known cardiac history presents with decompensated HF. ECG shows LVH and ST depression. Echo shows anteroapical dyskinesis with LVEF 25%. The myocardial thickness of the anterior wall is 7 mm. Coronary angiography shows a totally occluded LAD with grade 3 collateral flow and severe RCA disease. Exercise stress testing is performed and shows a large, mainly fixed anteroapical defect with 55% uptake, and mild, reversible inferior defect. The patient walked 3 minutes and experienced chest tightness early on. Beside proper medical therapy, what is the best revascularization option?