Click on image to view larger version.

Figure 1 Study design. *There were 458 patients in the conservative arm of VANQWISH; 73 with prior coronary artery bypass graft surgery were excluded from our study. Eighty-seven of these patients also met VANQWISH criteria for cath; three did not (two patients had ST-segment elevation on exercise stress testing, and one experienced angina at low workload). Cath = cardiac catheterization; D-MPI = dipyridamole myocardial perfusion imaging; FRISC-II = Fast Revascularization During Instability in Coronary Artery Disease trial; ST = ST-segment depression; VANQWISH = Veterans Affairs Non–Q-Wave Infarction Strategies in Hospital trial.