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Case 65 - A- or Paucisymptomatic HyperCKaemia

from Myopathies

Published online by Cambridge University Press:  aN Invalid Date NaN

Jessica E. Hoogendijk
Affiliation:
University Medical Center Utrecht
Marianne de Visser
Affiliation:
Amsterdam University Medical Center
Pieter A. van Doorn
Affiliation:
Erasmus MC, University Medical Center, Rotterdam
Erik H. Niks
Affiliation:
Leiden University Medical Center
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Summary

A 44-year-old man was referred because of hyperCKaemia (elevated CK activity). CK ranged from 1300 to 2200 IU/L (normal < 171). Before referral some investigations were performed. TSH was normal. HyperCKaemia was initially considered to be related to the use of simvastatin, but four months after withdrawal of this drug, CK was still markedly elevated.

He did not complain about muscle weakness, muscle cramps, or myalgia. Previous history disclosed diabetes mellitus type 2, hypertension, and Asperger syndrome. Medication included metoprolol/hydrochlorothiazide, enalapril, and metformin. Family history was negative for neuromuscular disorders.

Type
Chapter
Information
Neuromuscular Disease
A Case-Based Approach
, pp. 266 - 268
Publisher: Cambridge University Press
Print publication year: 2024

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References

Suggested Reading

Brewster, LM, Mairuhu, G, Sturk, A, van Montfrans, GA. Distribution of creatine kinase in the general population: implications for statin therapy. Am Heart J 2007;154(4):655661. doi: 10.1016/j.ahj.2007.06.008. PMID: 17892987.CrossRefGoogle ScholarPubMed
Janssens, L, De Puydt, J, Milazzo, M, et al. Risk of malignant hyperthermia in patients carrying a variant in the skeletal muscle ryanodine receptor 1 gene. Neuromuscul Disord 2022;32(11-12):864869. doi: 10.1016/j.nmd.2022.10.003. Epub 2022 Oct 19. PMID: 36283893.CrossRefGoogle ScholarPubMed
Lilleng, H, Johnsen, SH, Wilsgaard, T, Bekkelund, SI. Are the currently used reference intervals for creatine kinase (CK) reflecting the general population? The Tromsø Study. Clin Chem Lab Med 2011;50(5):879884. doi: 10.1515/CCLM.2011.776. PMID: 22070220.Google ScholarPubMed
Kley, RA, Schmidt-Wilcke, T, Vorgerd, M. Differential diagnosis of hyperckemia. Neurol Int Open 2018;2:E72E83.Google Scholar
Rubegni, A, Malandrini, A, Dosi, C, et al. Next-generation sequencing approach to hyperCKemia: a 2-year cohort study. Neurol Genet 2019;5(5):e352. doi: 10.1212/NXG.0000000000000352. PMID: 31517061; PMCID: PMC6705647.CrossRefGoogle ScholarPubMed

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