Kidney Injury Molecule-1 Is Associated with Contrast-Induced Nephropathy in Elderly Patients with Non-STEMI

Arq Bras Cardiol. 2021 Jun;116(6):1048-1056. doi: 10.36660/abc.20200172.
[Article in English, Portuguese]

Abstract

Background: Contrast-induced nephropathy (CIN) is associated with an increased risk of major adverse cardiovascular events (MACE), and the association between CIN and oxidative mechanisms is well documented.

Objective: This study aimed to evaluate the relationship between serum levels of kidney injury molecule-1 (KIM-1) and CIN in elderly patients with non-ST-segment elevation myocardial infarction (NSTEMI).

Methods: This study included a total of 758 patients with NSTEMI, who underwent percutaneous coronary intervention (PCI); 15 developed CIN after PCI, and another 104 were the control group, matched for age > 65 years. Baseline to 48-to-72-hour laboratory values and clinical outcomes were recorded. Patients were followed during one year. P values of < 0.05 were considered significant.

Results: CIN was observed in 12.60% of the patients. Serum KIM-1 was significantly higher in the CIN group than in the non-CIN group (14.02 [9.53 - 19.90] vs. 5.41 [3.41 - 9.03], p < 0.001). The Mehran score was significantly higher in the CIN group than in the non-CIN group (14 [5 - 22] vs. 5 [2 - 7], p = 0.001). MACE were significantly higher in the CIN group than in the non-CIN group (7 [46.70%] vs. 12 [11.50%], p = 0.001). Multivariate logistic regression analysis showed that baseline KIM-1 level (OR = 1.652, 95% CI: 1.20 - 2.27, p = 0.002) and Mehran score (OR = 1.457, 95% CI: 1.01 - 2.08, p = 0.039) were independent predictors of CIN in elderly patients with NSTEMI.

Conclusion: Baseline serum KIM-1 concentration and Mehran score are independent predictors of CIN in elderly patients with NSTEMI. Additionally, all-cause mortality, cardiovascular death, myocardial reinfarction, stroke, and MACE were significantly higher in the CIN group at one-year follow-up. (Arq Bras Cardiol. 2021; [online].ahead print, PP.0-0).

Fundamento: A nefropatia induzida por contraste (NIC) está associada a um risco aumentado de eventos cardiovasculares adversos maiores (ECAM), e a associação entre NIC e mecanismos oxidativos está bem documentada.

Objetivo: Este estudo visou avaliar a relação entre os níveis séricos da molécula de lesão renal-1 (KIM-1) e a NIC em pacientes idosos com infarto do miocárdio sem supradesnivelamento do segmento ST (IAMSSST).

Métodos: O presente estudo incluiu um total de 758 pacientes com IAMSSST que foram submetidos a intervenção coronária percutânea (ICP); 15 desenvolveram NIC após a ICP e outros 104 constituíram o grupo controle, pareado por idade > 65 anos. Foram registrados os valores laboratoriais desde a linha de base até o período entre 48 e 72 horas e os achados clínicos. Os pacientes foram acompanhados durante um ano. Foram considerados significativos valores de p < 0,05.

Resultados: A NIC foi observada em 12,60% dos pacientes. A KIM-1 sérica foi significativamente mais alta no grupo com NIC que no grupo sem NIC (14,02 [9,53 – 19,90] versus 5,41 [3,41 – 9,03], p < 0,001). O escore Mehran foi significativamente mais alto no grupo com NIC do que no grupo sem NIC (14 [5 – 22] versus 5 [2 – 7], p = 0,001). Os ECAM foram significativamente maiores no grupo com NIC do que no grupo sem NIC (7 [46,70%] versus 12 [11,50%], p = 0,001). A análise de regressão logística multivariada mostrou que o nível de KIM-1 basal (OR = 1,652, IC 95%: 1,20 – 2,27, p = 0,002) e o escore Mehran (OR = 1,457, IC 95%: 1,01 – 2,08, p = 0,039) foram preditores independentes da NIC em pacientes idosos com IAMSSST.

Conclusão: A concentração sérica basal de KIM-1 e o escore de Mehran são preditores independentes de NIC em pacientes idosos com IAMSSST. Além disso, todas as causas de mortalidade, morte cardiovascular, reinfarto do miocárdio, acidente vascular cerebral e MACE foram significativamente maiores no grupo CIN no acompanhamento de um ano. (Arq Bras Cardiol. 2021; [online].ahead print, PP.0-0).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Contrast Media
  • Humans
  • Kidney
  • Kidney Diseases*
  • Percutaneous Coronary Intervention*
  • Risk Factors
  • ST Elevation Myocardial Infarction*

Substances

  • Contrast Media