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Incomplete Reporting in a Case Report of Corticosteroids in the Treatment of Alcohol-Induced Rhabdomyolysis

      To the Editor:
      In the October 2011 issue of Mayo Clinic Proceedings, we reported on a 55-year-old man who had an association between substance abuse and muscle disease.
      • Antoon J.W.
      • Chakraborti C.
      Corticosteroids in the treatment of alcohol-induced rhabdomyolysis.
      We interpreted this as an example of alcohol-induced rhabdomyolysis and shared that interpretation with readers of the Proceedings. We further speculated that improvements in the patient's condition while under our care might have been the result of corticosteroid treatment.
      Shortly after the publication of our report, other physicians who also cared for this patient during other hospitalizations brought to our attention that our report did not accurately represent the complexity of the case. Specifically, we did not report multiple confounding events that could have meaningfully influenced readers' interpretation of the underlying pathophysiology and our claims of a positive response to corticosteroid treatment in this patient.
      Based on this critique, we again reviewed the complete collection of the patient's record at the Medical Center of Louisiana at New Orleans. These additional findings were submitted to experts provided both by Tulane University and by the Editorial Board of Mayo Clinic Proceedings. Some factors that the authors and reviewers felt should be shared with readers include:
      • 1
        On rereview of the available records, the hospital course reported was the fourth, and not the second, in a series of 5 admissions for similar symptoms.
      • 2
        In at least one prior admission, the patient experienced rhabdomyolysis that resolved over the course of 4 days without the use of corticosteroids.
      • 3
        Poorly differentiated, metastatic carcinoma was diagnosed 1 week after the diagnosis of polymyositis. Ultimately, immunohistochemistry results from a biopsy specimen of a pelvic lesion suggested that lung cancer was the likely primary tumor.
      • 4
        Polymyositis is known to occur as a paraneoplastic syndrome and may respond to corticosteroids,
        • Stockton D.
        • Doherty V.R.
        • Brewster D.H.
        Risk of cancer in patients with dermatomyositis or polymyositis, and follow-up implications: a Scottish population-based cohort study.
        • Hill C.L.
        • Zhang Y.
        • Sigurgeirsson B.
        • et al.
        Frequency of specific cancer types in dermatomyositis and polymyositis: a population-based study.
        • Aggarwal R.
        • Oddis C.V.
        Paraneoplastic myalgias and myositis.
        but a direct relationship between lung cancer and rhabdomyolysis is not well described.
      • 5
        The extremely high levels of creatine kinase (>400,000 U/L) and history of fluctuating muscle pain may speak against polymyositis being the cause of the rhabdomyolysis, although we did not rule it out with certainty. Based on the patient's history, other possible etiologies include cocaine and alcohol abuse; however, on both hospital admissions, the patient's urine drug screen was negative for cocaine.
      • 6
        Finally, we should make it clear that we cannot rule out the possibility of alcohol-induced rhabdomyolysis coexisting with polymyositis.
      In the final analysis, the authors and expert reviewers were uncertain whether the new information changed the conclusions and diagnosis presented in our case report. However, all agree that we were remiss in not being more precise with these facts in the manuscript accepted for publication in Mayo Clinic Proceedings.
      We apologize for any confusion our actions may have caused, and we thank those individuals who brought this oversight to our attention and helped us clarify the facts of the case.

      References

        • Antoon J.W.
        • Chakraborti C.
        Corticosteroids in the treatment of alcohol-induced rhabdomyolysis.
        Mayo Clin Proc. 2011; 86: 1005-1007
        • Stockton D.
        • Doherty V.R.
        • Brewster D.H.
        Risk of cancer in patients with dermatomyositis or polymyositis, and follow-up implications: a Scottish population-based cohort study.
        Br J Cancer. 2001; 85: 41-45
        • Hill C.L.
        • Zhang Y.
        • Sigurgeirsson B.
        • et al.
        Frequency of specific cancer types in dermatomyositis and polymyositis: a population-based study.
        Lancet. 2001; 357: 96-100
        • Aggarwal R.
        • Oddis C.V.
        Paraneoplastic myalgias and myositis.
        Rheum Dis Clin North Am. 2011; 37: 607-621

      Linked Article

      • Correction
        Mayo Clinic ProceedingsVol. 87Issue 8
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          The Case Report entitled “Corticosteroids in the Treatment of Alcohol-Induced Rhabdomyolysis,” published in the October 2011 issue of Mayo Clinic Proceedings (Mayo Clin Proc. 2011;86(10):1005-1007), contained multiple errors that may have affected the manuscript's conclusions and the application of the information to other patients. The details of the various errors are identified in a Letter-to-the-Editor in this August 2012 issue of the Proceedings (Mayo Clin Proc. 2012;87(8):803). The letter, authored by Chayan Chakraborti, MD, and James W.
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