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Risk of Venous Thromboembolism in Patients by Albuminuria and Estimated GFR.
Am J Kidney Dis. 2017 Aug 17;:
Authors: Massicotte-Azarniouch D, Bader Eddeen A, LazoLanger A, Molnar AO, Lam NN, McCallum MK, Bota S, Zimmerman D, Garg AX, Harel Z, Perl J, Wald R, Sood MM
Abstract
BACKGROUND: The risk for venous thromboembolism (VTE) is elevated with albuminuria or a low estimated glomerular filtration rate (eGFR). However, the VTE risk due to the combined effects of eGFR and albuminuria are unknown.
STUDY DESIGN: Population-based cohort study.
SETTINGS & PARTICIPANTS: 694,956 adults in Ontario, Canada, from 2002 to 2012.
FACTORS: eGFR and albumin-creatinine ratio (ACR).
OUTCOME: VTE.
RESULTS: 15,180 (2.2%) VTE events occurred during the study period. Both albuminuria and eGFR were independently associated with VTE. The association of albuminuria and VTE differed by level of eGFR (P for ACR × eGFR interaction < 0.001). After considering the competing risk for death, there was a 61% higher rate of VTE in patients with normal eGFRs (eGFRs>90mL/min/1.73m(2)) and heavy albuminuria (ACR>300mg/g) compared with those with normal eGFRs and no albuminuria (subdistribution HR, 1.61; 95% CI, 1.38-1.89). Among those with reduced kidney function (eGFR, 15-29mL/min/1.73m(2)), the risk for VTE was only minimally increased, irrespective of albuminuria (subdistribution HRs of 1.23 [95% CI, 1-1.5] and 1.09 [95% CI, 0.82-1.45] for ACR<30 and >300mg/g, respectively).
LIMITATIONS: Only single determinations of ACR and eGFR were used. Diagnostic/International Classification of Diseases codes were used to define VTE.
CONCLUSIONS: Albuminuria increases the risk for VTE markedly in patients with normal eGFRs compared with those with lower eGFRs.
PMID: 28823585 [PubMed - as supplied by publisher]