Thermoregulatory sweat testing in patients with erythromelalgia

M. D P Davis, Joseph Genebriera, Paola Sandroni, Robert D. Fealey

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Objectives: To examine the results of thermoregulatory sweat testing in patients with erythromelalgia and to compare them with the results of other neurophysiologic tests of small-fiber nerve function. Design: Retrospective study. Setting: Tertiary referral center. Patients: Thirty-two consecutive patients with erythromelalgia who had thermoregulatory sweat testing in addition to vascular and nerve testing. Intervention: The following information was abstracted for each patient: demographics, clinical presentation, and results of thermoregulatory sweat testing, vascular (noninvasive) testing, and nerve testing (electromyography and autonomic reflex screen, including quantitative sudomotor axon reflex test). Main Outcome Measures: Results of thermoregulatory sweat testing to evaluate small-fiber neuropathy, compared with other tools used to estimate small-fiber neuropathy. Results: Thermoregulatory sweat testing results were abnormal in 28 (88%) of 32 patients, and quantitative sudomotor axon reflex test results were abnormal in 22 patients (69%). Abnormalities noted on thermoregulatory sweat testing varied from local hypohidrosis or anhidrosis to global anhidrosis. Global or almost-global anhidrosis was present in 8 patients (25%); in 19 patients (59%) the anhidrosis was distal, and 1 other patient (3%) had a less specific pattern of anhidrosis (multifocal or regional). The area of anhidrosis generally corresponded to the area that was symptomatic of the erythromelalgia. Conclusions: Small-fiber neuropathy is prevalent in most patients with erythromelalgia. Thermoregulatory sweat testing is a sensitive and useful marker of small-fiber neuropathy in these patients.

Original languageEnglish (US)
Pages (from-to)1583-1588
Number of pages6
JournalArchives of Dermatology
Volume142
Issue number12
DOIs
StatePublished - 2006

Fingerprint

Erythromelalgia
Sweat
Hypohidrosis
Reflex
Blood Vessels
Axons
Electromyography
Nerve Fibers
Tertiary Care Centers

ASJC Scopus subject areas

  • Dermatology

Cite this

Davis, M. D. P., Genebriera, J., Sandroni, P., & Fealey, R. D. (2006). Thermoregulatory sweat testing in patients with erythromelalgia. Archives of Dermatology, 142(12), 1583-1588. https://doi.org/10.1001/archderm.142.12.1583

Thermoregulatory sweat testing in patients with erythromelalgia. / Davis, M. D P; Genebriera, Joseph; Sandroni, Paola; Fealey, Robert D.

In: Archives of Dermatology, Vol. 142, No. 12, 2006, p. 1583-1588.

Research output: Contribution to journalArticle

Davis, MDP, Genebriera, J, Sandroni, P & Fealey, RD 2006, 'Thermoregulatory sweat testing in patients with erythromelalgia', Archives of Dermatology, vol. 142, no. 12, pp. 1583-1588. https://doi.org/10.1001/archderm.142.12.1583
Davis, M. D P ; Genebriera, Joseph ; Sandroni, Paola ; Fealey, Robert D. / Thermoregulatory sweat testing in patients with erythromelalgia. In: Archives of Dermatology. 2006 ; Vol. 142, No. 12. pp. 1583-1588.
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abstract = "Objectives: To examine the results of thermoregulatory sweat testing in patients with erythromelalgia and to compare them with the results of other neurophysiologic tests of small-fiber nerve function. Design: Retrospective study. Setting: Tertiary referral center. Patients: Thirty-two consecutive patients with erythromelalgia who had thermoregulatory sweat testing in addition to vascular and nerve testing. Intervention: The following information was abstracted for each patient: demographics, clinical presentation, and results of thermoregulatory sweat testing, vascular (noninvasive) testing, and nerve testing (electromyography and autonomic reflex screen, including quantitative sudomotor axon reflex test). Main Outcome Measures: Results of thermoregulatory sweat testing to evaluate small-fiber neuropathy, compared with other tools used to estimate small-fiber neuropathy. Results: Thermoregulatory sweat testing results were abnormal in 28 (88{\%}) of 32 patients, and quantitative sudomotor axon reflex test results were abnormal in 22 patients (69{\%}). Abnormalities noted on thermoregulatory sweat testing varied from local hypohidrosis or anhidrosis to global anhidrosis. Global or almost-global anhidrosis was present in 8 patients (25{\%}); in 19 patients (59{\%}) the anhidrosis was distal, and 1 other patient (3{\%}) had a less specific pattern of anhidrosis (multifocal or regional). The area of anhidrosis generally corresponded to the area that was symptomatic of the erythromelalgia. Conclusions: Small-fiber neuropathy is prevalent in most patients with erythromelalgia. Thermoregulatory sweat testing is a sensitive and useful marker of small-fiber neuropathy in these patients.",
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