RESUMO
BACKGROUND: Cardiovascular mortality and the impact of cardiac risk factors in advanced chronic kidney disease (CKD) remain poorly investigated. We examined the risk of cardiovascular mortality in patients with advanced CKD with and without diabetes as well as the impact of albuminuria, plasma hemoglobin, and plasma low-density lipoprotein (LDL) cholesterol levels. METHODS: In a Danish nationwide registry-based cohort study, we identified persons aged ≥ 18 years with an estimated glomerular filtration rate < 30 mL/min/1.73m2 between 2002 and 2018. Patients with advanced CKD were age- and sex-matched with four individuals from the general Danish population. Cause-specific Cox regression models were used to estimate the 1-year risk of cardiovascular mortality standardized to the distribution of risk factors in the cohort. RESULTS: We included 138,583 patients with advanced CKD of whom 32,698 had diabetes. The standardized 1-year risk of cardiovascular mortality was 9.8% (95% CI 9.6-10.0) and 7.4% (95% CI 7.3-7.5) for patients with and without diabetes, respectively, versus 3.1% (95% CI 3.1-3.1) in the matched cohort. 1-year cardiovascular mortality risks were 1.1- to 2.8-fold higher for patients with diabetes compared with those without diabetes across the range of advanced CKD stages and age groups. Albuminuria and anemia were associated with increased cardiovascular mortality risk regardless of diabetes status. LDL-cholesterol was inversely associated with cardiovascular mortality risk in patients without diabetes, while there was no clear association in patients with diabetes. CONCLUSIONS: Diabetes, albuminuria, and anemia remained important risk factors of cardiovascular mortality whereas our data suggest a limitation of LDL-cholesterol as a predictor of cardiovascular mortality in advanced CKD.
Assuntos
Doenças Cardiovasculares , Diabetes Mellitus , Insuficiência Renal Crônica , Humanos , Estudos de Coortes , Albuminúria , Fatores de Risco , Taxa de Filtração Glomerular , LDL-ColesterolRESUMO
BACKGROUND: Although kidney insufficiency has been shown to be associated with increased risk of myocardial injury, benefit of coronary angiography (CAG) and revascularization remains uncertain, with implications on management strategies and outcomes. We aimed to compare rates of CAG and revascularization and subsequent risk of cardiovascular and kidney outcomes in hospitalized patients with myocardial injury and kidney dysfunction. METHODS: Retrospective cohort study encompassing hospitalized patients with myocardial injury i.e. elevated troponin I or T and an eGFR ≤60 ml/min/1.73 m2 identified between 2011 and 2021 in Danish national registers. 30-day odds for CAG were computed across granular eGFR-categories based on multiple logistic regression. Standardized one-year risks of cardiovascular and kidney outcomes including mortality were determined based on hazards obtained in multiple Cox regression. RESULTS: A total of 52,798 patients with myocardial injury were identified. CAG was performed in 14.3 % (n = 7549). 30-day odds ratios for CAG were 0.64 [0.60-0.68], 0.38 [0.34-0.42], 0.18 [0.14-0.22], and 0.35 [0.30-0.40] in patients with eGFR 31-45 ml/min/1.73 m2, eGFR 15-30 ml/min/1.73 m2 for eGFR<15 ml/min/1.73 m2 and chronic dialysis, respectively (eGFR 46-60 ml/min/1.73 m2 as reference). Median follow-up was 4.1 years. One-year mortality risk differences associated with CAG and revascularization (no CAG as reference) were -7.8 [-7.0; -8.7] and -9.1 [-8.4; -9.9] for eGFR 46-60 ml/min/1.73 m2; -7.0 [-5.7;-8-3] and -8.0 [-6.6; -9.5] for eGFR 31-45 ml/min/1.73 m2; -5.4 [-3.0; -7.2] and -5.2 [-2.2; -8.3] for eGFR 15-30 ml/min/1.73 m2; -8.8 [-3.1; -13.7] and -5.4 [3.1; -13.4] for eGFR<15 ml/min/1.73 m2; and -4.9 [-0.1; -9.7] and -4.2 [1.5; -9.2] for chronic dialysis, respectively. CONCLUSION: Probability of CAG following myocardial injury declined with progressive kidney dysfunction. Overall, CAG was associated with lower mortality irrespective of kidney function and subsequent revascularization.