Abstract
The development of renal insufficiency after percutaneous coronary intervention (PCI) is associated with increases in morbidity and mortality. Recent studies have reported that hyperuricemia (HU) results in hypertension, intrarenal vascular disease, and renal injury. We postulated that HU contributes to progressive renal disease after PCI. We studied 139 patients with chronic kidney disease (CKD) undergoing elective PCI including 59 HU patients. We assessed the relationship between HU and the development of renal insufficiency after PCI by estimating traditional contrast-induced nephropathy (CIN) and persistent postprocedural nephropathy (PPN) defined as an increase in creatinine ≥0.2 mg/dl of the baseline value 2 weeks after procedure. CIN and PPN were seen in 6.5 and 28.8% respectively. The incidence of PPN was higher in HU patients than in non-HU patients (p < 0.001) although the incidence of CIN was not significantly different between the two groups. PPN was more frequently observed in hyperuricemic patients irrespective of association with hypertension (with and without hypertension, p < 0.001 and p = 0.034, respectively). By univariate analysis, HU and hypertension are associated with PPN although there was no significant predictor of CIN in this study. Multivariate analysis showed HU and hypertension were independent predictors of PPN. HU is a predictor of slow and mild development of renal insufficiency after PCI in patients with CKD.
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Okino, S., Fukuzawa, S., Inagaki, M. et al. Hyperuricemia as a risk factor for progressive renal insufficiency after coronary intervention in patients with chronic kidney disease. Cardiovasc Interv and Ther 25, 105–111 (2010). https://doi.org/10.1007/s12928-010-0021-4
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DOI: https://doi.org/10.1007/s12928-010-0021-4