BACKGROUND: We sought to determine whether location of the second internal thoracic artery (ITA) graft used for bilateral ITA grafting affects mortality and morbidity of patients with 3-system coronary artery disease and to identify factors associated with second ITA location. METHODS AND RESULTS: From January 1972 to June 2006, 3611 patients with 3-system coronary artery disease underwent bilateral ITA grafting with one graft anastomosed to the left anterior descending system and the second to either the circumflex (n=2926) or right coronary artery (n=685) system. Follow-up was 9.2+/-7.2 years. Propensity score methodology was used to obtain risk-adjusted outcome comparisons between patients with the second ITA to circumflex versus right coronary artery. Hospital mortality (0.34% versus 0.58%; P=0.4), stroke (0.96% versus 0.88%; P=0.8), myocardial infarction (1.3% versus 0.73%; P=0.2), renal failure (0.44% versus 0.29%; P=0.6), respiratory insufficiency (3.5% versus 3.8%; P=0.7), and reoperation for bleeding (3.4% versus 3.2%; P=0.8) were similar in patients who received the second ITA to circumflex or right coronary artery and remained similar after propensity score adjustment. Late survival (86% versus 87% at 10 years) was also similar. Despite this, there was a gradual decline in ITA to right coronary artery grafting. CONCLUSIONS: Contrary to prevailing wisdom that the second ITA graft should be anastomosed to the next most important left-sided coronary artery in 3-system coronary artery disease, it may be placed to either the circumflex or right coronary artery system with similar early and late outcomes.
BACKGROUND: We sought to determine whether location of the second internal thoracic artery (ITA) graft used for bilateral ITA grafting affects mortality and morbidity of patients with 3-system coronary artery disease and to identify factors associated with second ITA location. METHODS AND RESULTS: From January 1972 to June 2006, 3611 patients with 3-system coronary artery disease underwent bilateral ITA grafting with one graft anastomosed to the left anterior descending system and the second to either the circumflex (n=2926) or right coronary artery (n=685) system. Follow-up was 9.2+/-7.2 years. Propensity score methodology was used to obtain risk-adjusted outcome comparisons between patients with the second ITA to circumflex versus right coronary artery. Hospital mortality (0.34% versus 0.58%; P=0.4), stroke (0.96% versus 0.88%; P=0.8), myocardial infarction (1.3% versus 0.73%; P=0.2), renal failure (0.44% versus 0.29%; P=0.6), respiratory insufficiency (3.5% versus 3.8%; P=0.7), and reoperation for bleeding (3.4% versus 3.2%; P=0.8) were similar in patients who received the second ITA to circumflex or right coronary artery and remained similar after propensity score adjustment. Late survival (86% versus 87% at 10 years) was also similar. Despite this, there was a gradual decline in ITA to right coronary artery grafting. CONCLUSIONS: Contrary to prevailing wisdom that the second ITA graft should be anastomosed to the next most important left-sided coronary artery in 3-system coronary artery disease, it may be placed to either the circumflex or right coronary artery system with similar early and late outcomes.
Authors: Frans J Beerkens; Bimmer E Claessen; Marielle Mahan; Mario F L Gaudino; Derrick Y Tam; José P S Henriques; Roxana Mehran; George D Dangas Journal: Nat Rev Cardiol Date: 2021-10-05 Impact factor: 32.419
Authors: Suna Aydin; Suleyman Aydin; Mehmet Nesimi Eren; Ibrahim Sahin; Musa Yilmaz; Mehmet Kalayci; Orhan Gungor Journal: Springerplus Date: 2013-11-16