P1749Predictors of acute kidney injury in patients admitted with acute coronary syndromes in a coronary care unit

Ferreira, Joana Moura; Freitas, Flávio Geraldo Rezende; Ferreira, Christelle; Milner, Jaques S.; Alves, P; Marinho, V; Domingues, C; Santos, Maria de Lurdes Campos; Monteiro, S; Monteiro, Pedro; Pêgo, M.

doi:10.1093/eurheartj/ehy565.p1749

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“…Anemia plays an important role in the worsening of renal function in acute coronary syndromes (ACS). 21,22 Anemia reduces the oxygen carrying capacity of blood, which may lead to renal damage by aggravating ischemia and hypoxia of the renal medulla. 23 Anemia is also associated with an increased incidence of contrast-associated AKI in patients undergoing coronary angiography.…”

Section: Discussionmentioning

confidence: 99%

Impact of Anemia on Outcomes and Resource Utilization in Patients with Myocardial Infarction: A National Database Analysis

Jhand

Abusnina

Tak

et al. 2023

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BackgroundAlthough anemia is common in patients with myocardial infarction (MI), management remains controversial. We quantified the association of anemia with in-hospital outcomes and resource utilization in patients admitted with MI using a large national database.MethodsAll hospitalizations with a primary diagnosis code for acute MI in the National Inpatient Sample (NIS) between 2014 and 2018 were identified. Among these hospitalizations, patients with anemia were identified using a secondary diagnosis code. Data on demographic and clinical variables were collected. Outcomes of interest included in-hospital adverse events, length of stay (LOS), and total cost. Multivariable logistic regression and generalized linear models were used to evaluate the relationship between anemia and outcomes.ResultsAmong 1,113,181 MI hospitalizations, 254,816 (22.8%) included concomitant anemia. Anemic patients were older and more likely to be women. After adjustment for demographics and comorbidities, anemia was associated with higher mortality (7.1 vs. 4.3%; odds ratio 1.09; 95% confidence interval [CI] 1.07-1.12, p<0.001). Anemia was also associated with a mean of 2.71 days longer LOS (average marginal effects [AME] 2.71; 95% CI 2.68-2.73, p<0.05), and higher total costs (mean cost $9,703 higher; AME $9703, 95% CI $9,577-$9,829, p<0.05). Anemic patients who received blood transfusions had higher mortality as compared with those who did not (8.2% vs. 7.0, p<0.001).ConclusionIn MI patients, anemia was associated with higher in-hospital mortality, adverse events, total cost, and length of stay. Transfusion was associated with increased mortality, and its role in MI requires further research.

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Section: Discussionmentioning

confidence: 99%