Abstract 14484: The Association of Pre-operative Glycemic Control With Long-term Survival in Diabetic Patients After Coronary Artery Bypass Grafting

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Muhammad Sheikh ◽  
Salil V Deo ◽  
Varun Sundaram ◽  
Brigid Wilson ◽  
Jayakumar Sahadevan ◽  
...  

Introduction: We analyzed the national Veteran Affairs (VA) data to evaluate the association of preoperative glycated Hemoglobin (HbA1c) and long-term outcome after isolated coronary artery bypass grafting (CABG). Methods: Between January 2007 - December 2014, Veterans with diabetes mellitus (DM) that underwent isolated CABG were divided on into three groups (I: HbA1c < 8%, II: HbA1c 8 - 10% and III: HbA1c > 10%). Demographic and clinical differences between groups were evaluated with the t-test or chi-square test. The relationship of preoperative HbA1c and long-term survival was evaluated with a multivariable proportional hazards model; restricted cubic splines were used to model non-linear effects. The cumulative incidence of secondary end-points (myocardial infarction, urgent revascularization) for each group was modeled as a competing-risk analysis. Results: Overall, 3,210 patients (mean age 64.6 years, male 98.8%; insulin dependent - 53%) with DM underwent isolated CABG. Group III patients were younger (61 vs 65 years in group I). Median HbA1c levels were similar between races (white - 7.3% and blacks - 7.35%). Insulin dependence was higher in group III (79.3%) vs groups I (43.5%) and II (69.9%). In groups I,II and III, 5 and 10 year survival was 76.2%, 74.4%, 75.4% and 38.9%, 36.9% and 30.2% respectively. HbA1c was observed to have a J-shaped association with mortality with values < 6% and > 9% at higher risk of death. Left ventricular systolic dysfunction [HR 1.5 (1.3 - 1.7)], prior myocardial infarction [HR 1.3 (1.2 - 1.5)] and insulin dependence [HR 1.4 (1.2 - 1.5)] were also associated with lower survival. Myocardial infarction was observed in 9.8% , 13.4% and 12.8% patients in groups I, II and III respectively. Conclusions: Pre-operative HbA1c impacts long-term survival among diabetic patients undergoing CABG. We observed a J-shaped relationship between HbA1c and survival with values < 6% and > 9% associated with increased mortality.

2016 ◽  
Vol 43 (5) ◽  
pp. 397-403 ◽  
Author(s):  
Shuab Omer ◽  
Lorraine D. Cornwell ◽  
Ankur Bakshi ◽  
Eric Rachlin ◽  
Ourania Preventza ◽  
...  

Little is known about the frequency and clinical implications of postoperative atrial fibrillation in military veterans who undergo coronary artery bypass grafting (CABG). We examined long-term survival data, clinical outcomes, and associated risk factors in this population. We retrospectively reviewed baseline, intraoperative, and postoperative data from 1,248 consecutive patients with similar baseline risk profiles who underwent primary isolated CABG at a Veterans Affairs hospital from October 2006 through March 2013. Multivariable logistic regression identified predictors of postoperative atrial fibrillation. Kaplan-Meier analysis was used to evaluate long-term survival (the primary outcome measure), morbidity, and length of hospital stay. Postoperative atrial fibrillation occurred in 215 patients (17.2%). Independent predictors of this sequela were age ≥65 years (odds ratios [95% confidence intervals], 1.7 [1.3–2.4] for patients of age 65–75 yr and 2.6 [1.4–4.8] for patients &gt;75 yr) and body mass index ≥30 kg/m2 (2.0 [1.2–3.2]). Length of stay was longer for patients with postoperative atrial fibrillation than for those without (12.7 ± 6.6 vs 10.3 ± 8.9 d; P ≤0.0001), and the respective 30-day mortality rate was higher (1.9% vs 0.4%; P=0.014). Seven-year survival rates did not differ significantly. Older and obese patients are particularly at risk of postoperative atrial fibrillation after CABG. Patients who develop the sequela have longer hospital stays than, but similar long-term survival rates to, patients who do not.


2006 ◽  
Vol 81 (5) ◽  
pp. 1650-1657 ◽  
Author(s):  
Colleen Gorman Koch ◽  
Liang Li ◽  
Andra I. Duncan ◽  
Tomislav Mihaljevic ◽  
Floyd D. Loop ◽  
...  

2014 ◽  
Vol 28 (3) ◽  
pp. 595-600 ◽  
Author(s):  
Wesley T. O’Neal ◽  
Jimmy T. Efird ◽  
Hope Landrine ◽  
Curtis A. Anderson ◽  
Stephen W. Davies ◽  
...  

2020 ◽  
Vol 102 (6) ◽  
pp. 422-428
Author(s):  
BH Kirmani ◽  
S Power ◽  
J Zacharias

Introduction Endoscopic vein harvest is the technique of choice in North America, where it constitutes 80% of conduit harvest for coronary artery bypass grafting. The UK has much lower rates, despite demonstrable perioperative benefits. Concerns about patency and long-term survival are often cited as reasons for poor uptake and evidence in the literature thus far has only addressed mid-term outcomes. We sought to identify the long-term survival of patients undergoing endoscopic vein harvest compared with a contemporaneous cohort of open vein harvest. Materials and methods This was a retrospective cohort study of all consecutive patients undergoing isolated coronary artery bypass grafting at a single institution between 2007 and 2017. All-cause long-term mortality was compared using Kaplan–Meier curves and log-rank analysis. Results A total of 7,527 patients undergoing coronary artery bypass grafting (1,029 receiving endoscopic vein harvest) were studied. The groups were well matched for preoperative characteristics, except that there were more patients with triple-vessel disease and good left-ventricular function in the endoscopic vein harvest group. There was no statistically significant difference in the long-term survival (p = 0.23). At five years (median follow-up), survival was 86.1% (95% confidence interval 85.3–87.0) in the open vein harvest group compared with 85.5% (95% confidence interval 82.8–88.2) in the endoscopic vein harvest group. Discussion and conclusion Endoscopic vein harvest does not affect long-term survival in an unselected population. The contraindications for minimally invasive vein harvest in coronary artery bypass grafting are increasingly diminishing.


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