Incidência e fatores de risco para nefropatia induzida por contraste após angioplastia: um estudo observacional retrospectivo
Incidence and risk factors for contrast-induced nephropathy after angioplasty: an observational retrospective study
Juliana Peres; Jeferson Freitas Toregeani; Amanda Cristina Pohl; Ana Julia Vendrametto; Luciano de Andrade; André Brusamolin Moro
Resumo
Palavras-chave
Abstract
Background: Contrast-induced nephropathy (CIN) is a complication of iodinated contrast media use that can
lead to worsening of renal function, increased morbidity and mortality, and the need for renal replacement therapy.
Objectives: To evaluate the incidence of CIN after angioplasty and identify associated factors, including variations in
creatinine, glomerular filtration rate (GFR), contrast volume, procedure time, and comorbidities.
Methods: Retrospective
study of 305 patients undergoing angioplasty. Clinical and laboratory variables, including serum creatinine and GFR
before and after the procedure, were analyzed. CIN was defined as an absolute increase in creatinine ≥ 0.3 mg/dL
or a relative increase ≥ 50% within 48 hours. Logistic regression was applied to identify independent predictors.
Results: The incidence of CIN was 10.5% (n = 32/305). Patients with CIN showed a significant reduction in GFR
(pre: 73.79 ± 22.5 vs. post: 34.32 ± 11.8 mL/min; p < 0.0001) and increased creatinine (pre: 1.12 ± 0.3 vs. post: 1.78 ± 0.6
mg/dL; p < 0.001). CIN was associated with stroke (p = 0.014), peripheral arterial occlusive disease (p = 0.007), diabetes
mellitus (p = 0.002), chronic kidney disease (p = 0.005), and heart failure (p = 0.004). Multivariate analysis confirmed
DM (OR = 2.45; 95% CI: 1.12–4.38; p = 0.022) as the main risk factor.
Conclusions: CIN occurred in 10.5% of patients,
with DM, CKD, and HF being the main risk factors. These findings reinforce the importance of monitoring to reduce
the impact of CIN and optimize clinical outcomes.
Keywords
Referências
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Submetido em:
04/03/2025
Aceito em:
29/05/2025


