Arterial revascularisation using in situ or Y-composite conduits of internal thoracic arteries: Early results

Aim. This study aimed to research the early results of arterial revascularisation using in situ or Y-composite conduits of internal thoracic arteries. Methods. The study included 76 patients with coronary heart disease who underwent coronary artery bypass surgery between March 2018 and March 2020. Two groups of patients were selected. In the first group, autoarterial conduits from the internal thoracic arteries were used according to the in situ technique (n = 39). In the second group, autoarterial conduits were used with the formation of a Y-composite structure from the internal thoracic arteries (n = 37). Results. The general characteristics and frequency of postoperative complications for most events were comparable in both groups. The usage of on-pump coronary artery bypass graft was significantly more frequent in the in situ group than in the Y-composite group (28.2 and 3.0 %, respectively; p < 0.003). The duration of inotropic support was significantly shorter in the in situ group and was 3.72 ± 8.60 hours versus 8.0 ± 9.6 hours in the Y-composite group (p < 0.007). No significant difference was found between the main adverse cardiac and cerebral events throughout the hospital follow-up period. Conclusion. The low incidence of perioperative complications, the absence of perioperative myocardial infarction and the low hospital mortality indicate that bilateral mammary coronary bypass surgery is safe. Despite the absence of differences in the early postoperative period, we expect that in the long-term period there will be a statistically significant difference in major adverse cardiac events between Y-composite structures and in situ conduits from internal thoracic arteries. Received 23 June 2020. Revised 14 September 2020. Accepted 1 October 2020. Funding: The study did not have sponsorship. Conflict of interest: Authors declare no conflict of interest. Author contributions Conception and study design: A.K. Sabetov Data collection and analysis: A.K. Sabetov, M.O. Zhulkov Statistical analysis: D.S. Khvan, A.K. Sabetov Drafting the article: A.K. Sabetov Critical revision of the article: D.A. Sirota, D.S. Khvan, A.M. Chernyavskiy Final approval of the version to be published: A.K. Sabetov, D.A. Sirota, D.S. Khvan, M.O. Zhulkov, A.M. Chernyavskiy