Seasonal variation in prevalence of carpal tunnel syndrome

Authors

  • Renata Siciliani Scalco MD,

    1. Department of Neurology, Pontifícia Universidade Católica do Rio Grande do Sul PUCRS, Porto Alegre, Rio Grande do Sul, Brazil
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  • Franciane Pietroski MD,

    1. Department of Neurology, Universidade Luterana do Brasil ULBRA, Canoas, Rio Grande do Sul, Brazil
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  • Luiz Felippe S. Celli MD,

    1. Department of Neurology, Universidade Luterana do Brasil ULBRA, Canoas, Rio Grande do Sul, Brazil
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  • Irenio Gomes MD, PhD,

    1. Department of Neurology, Pontifícia Universidade Católica do Rio Grande do Sul PUCRS, Porto Alegre, Rio Grande do Sul, Brazil
    2. Department of Neurology, Universidade Luterana do Brasil ULBRA, Canoas, Rio Grande do Sul, Brazil
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  • Jefferson Becker MD, PhD

    Corresponding author
    1. Department of Neurology, Pontifícia Universidade Católica do Rio Grande do Sul PUCRS, Porto Alegre, Rio Grande do Sul, Brazil
    • Department of Neurology, Universidade Luterana do Brasil ULBRA, Canoas, Rio Grande do Sul, Brazil
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Correspondence to: J. Becker, Hospital Sao Lucas, Av. Ipiranga, 6690, sala 220, CEP: 90610-000, Porto Alegre, RS, Brazil; e-mail: jeffersonbecker@hotmail.com

ABSTRACT

Introduction: The influence of cold temperatures on neuropathies has been reported previously, but its impact on carpal tunnel syndrome (CTS) is not well analyzed. Methods: We analyzed the frequency of CTS among neurophysiological evaluations according to seasonal variation in 9574 consecutive patients (4260 with CTS). Results: A higher frequency of CTS was found in the winter (50.8%), and the lowest number for CTS diagnosis was found in the summer (38.9%). In both autumn and spring the prevalence remained stable at an intermediate level between summer and winter at 42.8% and 43.5%, respectively. Conclusion: CTS frequency was much higher in winter in this center. Muscle Nerve 47: 925–927, 2013

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