Publications by authors named "G A Tolis"

Objectives: Performance of a technically sound left internal thoracic artery to left anterior descending artery (LITA-LAD) anastomosis during coronary artery bypass grafting (CABG) is critically important. We used prospectively collected data from the multicentre, randomized REGROUP (Randomized Endograft Vein Perspective) trial to investigate CABG outcomes based on whether a resident or an attending surgeon performed the LITA-LAD anastomosis.

Methods: This was a post hoc subanalysis of the REGROUP trial, which randomized veterans undergoing isolated on-pump CABG to endoscopic versus open vein harvest from 2014 through 2017.

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Atrial fibrillation disrupts contraction of the atria, leading to stroke and heart failure. We deciphered how immune and stromal cells contribute to atrial fibrillation. Single-cell transcriptomes from human atria documented inflammatory monocyte and macrophage expansion in atrial fibrillation.

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Objective: There are no studies to date comparing the patency of coronary bypass grafts constructed by attending surgeons versus trainees and the potential consequences of any such disparities. We explored this issue by comparing the patency of individual anastomoses performed by residents versus the attending surgeon.

Design: We reviewed 765 continuous cases performed by a single surgeon which involved at least 1 coronary bypass anastomosis, totaling 2,173 distal anastomoses.

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Background: Immunoglobulin G4-related disease is a rare systemic inflammatory disease that can lead to vascular manifestations such as periarteritis.

Case Presentation: A 41-year-old man with stress angina was referred for coronary bypass surgery due to triple vessel coronary disease.

Conclusions: Operative findings revealed significant adhesions and dense peri-coronary and periaortic thickening, also involving the left internal mammary artery.

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