The Impact of Age and Gender on Outcomes in patients that Undergo Coronary Artery Bypass Grafting
Anthony Lemaire, Mark Russo, Hirohisa Ikegami, Casandra Soto, Lauren Salgueiro, Leonard Y. Lee.
Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ, USA.
An increasing number of older patients are undergoing cardiac surgery. The purpose of the study is to assess the impact of age on outcomes in patients that undergo coronary artery bypass grafting (CABG).
Patients that are ≥70 years who underwent CABG were selected from the Nationwide Inpatient Sample from 2010 to 2015 using ICD-9-CM diagnosis and procedure codes. The patients who were ≥70-79 years old were compared to patients aged ≥80-89 years old to determine if the age difference of the patients had an impact on outcomes. The gender of the patients ≥80 were also compared. The rates of complications, mortality, length of stay (LOS), and hospital costs were compared.
A total of 67, 568 patients who were ≥70 years old and underwent CABG were identified. Compared to the Septuagenarians, the Octogenarians were more likely to develop cardiac complications (P <0.0001). They were also more likely to develop renal (P <0.0001), respiratory (P <0.0001), and infectious complications (P <0.0001). The octogenarians also had a higher mortality (P <0.0001). The older patients had a longer LOS (median 9 days IQR [interquartile range] 7-13 days compared to the septuagenarians (median 8 days IQR 6-11 days). The octogenarians had an increased hospital cost (P <0.0001). The female octogenarians had a higher mortality (P < 0.0001) compared to males.
Advanced age impacts outcomes after CABG. The patients who were ≥80 years old had worse outcomes with increased complications and mortality. The Octogenarians who were females had a higher mortality.
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