Preoperative characteristics in patients who underwent isolated OPCAB using single or bilateral internal mammary arteries. Results displayed for the non-matched and matched populations. BIMA: Bilateral Internal Mammary Artery; BMI: Body Mass Index; CCS: Angina Canadian Cardiovascular Society Angina score; COPD: Chronic Obstructive Pulmonary Disease; CVA: Cerebral vascular accident; DVT: Deep Venous Thrombosis; IHD: Ischemic Heart Disease; MI: Myocardial Infarct; NYHA: New York Heart Association Dyspnea Score; PCI: Percutaneous Coronary Intervention; PVD: Peripheral Vascular Disease; SIMA: Single Internal Mammary Artery; TIA: Transient Ischemic Attack
Table 2. Extent of coronary disease and timing of surgery