Effects of acute kidney injury and chronic kidney disease on long-term mortality after coronary artery bypass grafting

American Heart Journal
Seung Seok HanKi Young Na

Abstract

Both acute kidney injury (AKI) and chronic kidney disease (CKD) are important issues in patients undergoing coronary artery bypass grafting (CABG), particularly with regard to mortality. However, their synergistic or discrete effects on long-term mortality remain unresolved. A total of 1,899 patients undergoing CABG were retrospectively analyzed. The adjusted hazard ratios for all-cause mortality were calculated after stratifying the timeframes. To evaluate the synergistic effects between AKI and CKD, the relative excess risk due to interaction was applied. The presence of AKI, CKD, or both increased the hazard ratios for mortality, compared with the absence of both: AKI alone, 1.84 (1.464-2.319); CKD alone, 2.46 (1.735-3.478); and AKI and CKD together, 3.21 (2.301-4.488). However, the relationships with mortality were different between AKI and CKD, according to the timeframes: AKI primarily affected early mortality, particularly within 3 years, whereas CKD had a relatively constant effect on both the early and late periods. When the parameters from the relative excess risk due to interaction were obtained, there was a synergistic additive effect on early mortality between AKI and CKD. The relationships with mortality after CAB...Continue Reading

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Citations

Nov 6, 2015·Circulation Journal : Official Journal of the Japanese Circulation Society·Suguru OhiraHitoshi Yaku
Dec 29, 2015·Journal of Cardiothoracic and Vascular Anesthesia·Eeva-Maija KinnunenFausto Biancari
May 14, 2019·Nephrology·Ji Eun KimSeung Seok Han
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Aug 21, 2021·Journal of Cardiac Surgery·Cesar E Mendoza, Gustavo A Vargas

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