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Can duration of hemodialysis be estimated based on the on-arrival laboratory tests and clinical manifestations in methanol-poisoned patients?

  • Nephrology - Original Paper
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Abstract

Purpose

We aimed to evaluate the efficacy of Lachance formula and more readily available clinical or laboratory factors (other than serum methanol level) in prediction of the needed time for hemodialysis in methanol-poisoned patients.

Methods

In a retrospective study, all methanol-poisoned patients referred to us between March 2008 and March 2016 were enrolled. The patients’ demographic characteristics, on-arrival vital signs, signs/symptoms, and laboratory tests were evaluated for factors that could prognosticate the dialysis duration.

Results

Of 72 patients enrolled, 54 underwent hemodialysis once (group 1) and 18 needed more than one session of hemodialysis (group 2). All were treated by ethanol, bicarbonate, and leucovorin. Lachance formula overestimated the patients in higher methanol levels and underestimated them in lower methanol levels. It properly predicted the needed time for hemodialysis when the methanol level was between 15 and 25 mg/dL. Groups 1 and 2 were different in terms of their ingested alcohol dose (P = 0.001), creatinine (P = 0.02), dyspnea on presentation (P = 0.002), and the place they had been dialyzed (P = 0.013). Dialysis duration significantly correlated with dyspnea on presentation (P = 0.028) and ingested alcohol dose (P = 0.02). After performance of logistic regression analysis, only creatinine was statistically significantly different between the two groups (P = 0.02). Median creatinine levels were 1.3 [1, 6] (0.8–2.7) and 1.4 [1.35, 2.1] (0.8–6.5) in the patients who were dialyzed once and twice, respectively.

Conclusions

As a conclusion, creatinine is possibly a readily available test that can predict the appropriate time needed for hemodialysis in methanol-poisoned patients.

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Authors and Affiliations

  1. Toxicological Research Center, Department of Clinical Toxicology, Shahid Beheshti University of Medical Sciences, Tehran, Iran

    Abdolkarim Pajoumand, Nasim Zamani, Hossein Hassanian-Moghaddam & Shahin Shadnia

  2. Excellence Center of Clinical Toxicology, Iranian Ministry of Health, Tehran, Iran

    Abdolkarim Pajoumand, Nasim Zamani, Hossein Hassanian-Moghaddam & Shahin Shadnia

Authors
  1. Abdolkarim Pajoumand
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  2. Nasim Zamani
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  3. Hossein Hassanian-Moghaddam
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  4. Shahin Shadnia
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Corresponding author

Correspondence to Nasim Zamani.

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Informed consent

The study was retrospective and the need for taking written informed consent from the patients was waived based on the research protocols of our university.

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Pajoumand, A., Zamani, N., Hassanian-Moghaddam, H. et al. Can duration of hemodialysis be estimated based on the on-arrival laboratory tests and clinical manifestations in methanol-poisoned patients?. Int Urol Nephrol 49, 1057–1062 (2017). https://doi.org/10.1007/s11255-017-1521-2

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  • DOI: https://doi.org/10.1007/s11255-017-1521-2

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