Endoscopic Harvesting of the Radial Artery and Saphenous Vein Grafts in Coronary Artery Bypass Surgery.

Since April 2018, the study database has been updated with all patients (currently there are 340 patients per group) and variables - both reflecting effectiveness of the procedure and cost. Preoperative variables being captured include comorbidity factors and variables relating to the Society of Thoracic Surgery (STS) score , which is a pre-procedure assessment of surgical risk.

The postoperative data collection includes a variety of complications and comorbidities the patient could experience during their hospital stay. These variables will provide us with information regarding procedure effectiveness, patient recovery and further costs associated with the procedure. Medications and antibiotics provided during the stay are also being captured. Total hospital costs will include any costs associated with ward stay, separated per level of care: Intensive Care Unit (ICU), Cardiac Surgical Unit (CSU), and regular ward.

The two follow up periods are 30 days and 6 months. Both look at the same effectiveness variables, any emergency room (ER) visits, re-admissions, and their respective reasons. Quality of life will be obtained by looking at the number of complications the patient experienced during these periods. The frequency of home care services provided to each patient, if any, are also being tracked. Cost calculations will be done by obtaining the time, length and number of visits to the ER, re-admissions and clinic visits.