Clinical and Neurophysiological Features of Leprosy Patients with Neuropathic Pain

Louise Mara Giesel Leprosy Laboratory, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil;
Post-graduate Program in Neurology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil;

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Izabela Jardim Rodrigues Pitta Leprosy Laboratory, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil;
Post-graduate Program in Neurology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil;

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Raquel Custódio da Silveira Leprosy Laboratory, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil;
Post-graduate Program in Neurology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil;

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Lígia Rocha Andrade Leprosy Laboratory, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil;
Post-graduate Program in Neurology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil;

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Robson Teixeira Vital Leprosy Laboratory, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil;
Department of Neurology, Pedro Ernesto University Hospital/Rio de Janeiro State University, Rio de Janeiro, Brazil

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José Augusto da Costa Nery Leprosy Laboratory, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil;

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Mariana de Andrea Vilas Boas Hacker Leprosy Laboratory, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil;

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Euzenir Nunes Sarno Leprosy Laboratory, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil;

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Marcia Maria Jardim Rodrigues Leprosy Laboratory, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil;
Post-graduate Program in Neurology, Federal University of the State of Rio de Janeiro, Rio de Janeiro, Brazil;
Department of Neurology, Pedro Ernesto University Hospital/Rio de Janeiro State University, Rio de Janeiro, Brazil

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Neural pain is a frequent symptom in leprosy disease. There is a paucity of data regarding neural pain diagnostics resulting in common prescriptive errors when neuritis is confused with neuropathic or mixed nociceptive–neuropathic pain. The present study identified important demographic, clinical, and neurophysiological features of 42 leprosy neuropathy patients presenting neuropathic pain (NP). During routine evaluations, patients were selected asking if they had ever experienced neural pain. Data analyses of their pain characteristics, clinical examination results, and both the Douleur Neuropathique 4 Questionnaire and Hamilton Depression Scale scores were used to classify these patients. The most common word they used to describe the sensation of pain for 25 (60%) of these patients was “burning.” In the early stages of the disease and before leprosy diagnosis, 19 (45%) had already complained about NP and leprosy treatment was unable to prevent its occurrence in 15 (36%). Leprosy reactions, considered NP risk factors, occurred in 32 (76%) cases. Knowledge of typical NP characteristics could be used to develop more effective therapeutic approaches for a notoriously difficult-to-treat pain condition.

Author Notes

Address correspondence to Louise Mara Giesel, Laboratório de Hanseníase, Instituto Oswaldo Cruz, Fiocruz, Av Brasil, 4365, Manguinhos, Rio de Janeiro, RJ. 21240-360, Brazil. E-mail: louisegiesel@gmail.com

Financial support: This work was supported by the Leprosy Laboratory, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, RJ, Brazil.

Authors’ addresses: Louise Mara Giesel, Izabela Jardim Rodrigues Pitta, Raquel Custódio da Silveira, and Lígia Rocha Andrade, Fundacao Oswaldo Cruz, Laboratório de Hanseníase, Rio de Janeiro, Brazil, and Post-graduate Program in Neurology, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Brazil, E-mails: louisegiesel@gmail.com, izabelap@gmail.com, raquelcustodiosilveira@yahoo.com.br, and ligiaandradee@gmail.com. Robson Teixeira Vital, Fundacao Oswaldo Cruz, Laboratório de Hanseníase, Rio de Janeiro, Brazil, and Department of Neurology, Hospital Universitario Pedro Ernesto, Rio de Janeiro, Brazil, E-mail: rt.vital@uol.com.br. José Augusto da Costa Nery, Mariana de Andrea Vilas Boas Hacker, and Euzenir Nunes Sarno, Fundacao Oswaldo Cruz, Laboratório de Hanseníase, Rio de Janeiro, Brazil, E-mails: neryjac@gmail.com, mariana.hacker@gmail.com, and euzenir@fiocruz.br. Marcia Maria Jardim Rodrigues, Fundacao Oswaldo Cruz, Laboratório de Hanseníase, Rio de Janeiro, Brazil, Department of Neurology, Hospital Universitario Pedro Ernesto, Rio de Janeiro, Brazil, and Post-graduate Program in Neurology, Universidade Federal do Estado do Rio de Janeiro, Rio de Janeiro, Brazil, E-mail: jardim.mm@gmail.com.

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