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  • Title: The clinical features of acute kidney injury in patients with acute paraquat intoxication.
    Author: Kim SJ, Gil HW, Yang JO, Lee EY, Hong SY.
    Journal: Nephrol Dial Transplant; 2009 Apr; 24(4):1226-32. PubMed ID: 18987262.
    Abstract:
    BACKGROUND: Paraquat (PQ) is a non-selective herbicide that generates reactive oxygen species in vivo. We hypothesized that acute kidney injury (AKI) in patients with acute PQ poisoning would provide a model for the clinical features of ROS-induced AKI. METHODS: From January 2007 to December 2007, 278 patients with acute PQ intoxication were included in the study. AKI was defined based on the RIFLE classification. The serial changes of creatinine (Cr), the incidence of AKI and the mortality according to the RIFLE classification were analysed. RESULTS: An initial serum Cr >1.2 mg/dL was a significant predictor of mortality [odds ratio 9.00, 95% C.I. (4.747, 17.061), P < 0.01]. The incidence of AKI was 51.4% among the 173 patients who had an initial serum Cr < or =1.2 mg/dL. Among them, 34.7% were the failure group and oliguric AKI was observed in 10 patients. The average peak serum Cr level, among the 13 survivors in the failure group, was 4.38 mg/dL at the fifth day, after ingestion, and their Cr level normalized within 3 weeks. None of the 13 survivors had permanent loss of renal function. The estimated amount of PQ ingestion was a predictor of the incidence of AKI. The mortality risk was significantly higher in the failure group than in the group without failure. CONCLUSION: The clinical feature was characterized by fully developed AKI at the fifth day after PQ ingestion and normalized within 3 weeks without exception.
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