Nail fold capillaroscopy: Normal findings in children and adolescents

Nail fold capillaroscopy: Normal findings in children and adolescents

Author Terreri, MTRA Google Scholar
Andrade, LEC Google Scholar
Puccinelli, M. L. Google Scholar
Hilario, MOE Google Scholar
Goldenberg, J. Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract Objectives: Capillaroscopy is a simple diagnostic method that permits noninvasive in vivo study of the capillary network. Studies designed to standardize capillary normality in children are limited. This article presents the capillaroscopic findings in healthy children and adolescents, thus making the application of this methodology viable for patients in this age range.Material and Methods: Healthy children were recruited from a private elementary school and junior high school. Nail fold capillaroscopy was performed using a stereomicroscope at 16 times magnification, addressing the following parameters: capillary morphology, capillary enlargement, devascularization, microhemorrhage, and subpapillary venous plexus visibility (PVS). These parameters were related to age, sex, ethnicity, and local periungal conditions.Results: the sample comprised 329 individuals with mean age of 8.2 years. We observed atypical capillary morphology in 118 of the studied cases (36%), mainly bizarre capillaries in 90 (27%), meandering capillaries in 32 (10%), and bushy capillaries in 20 (6%). the enlarged capillary phenomenon was uncommon, being observed in 30 cases (9%). the number of capillaries per millimeter varied from five to nine. Deletion areas were detected in only seven individuals (2%). the subpapillary venous plexus was not visualized in 13 (4%) cases. Younger children presented higher PVS scores and fewer capillaries/mm as compared with older children. PVS scores were lower in males and in nonwhite children. Other variables were not associated with sex or ethnicity.Conclusions: the normal nail fold capillary network in children resembles that observed in adults with some differences, such as a lower number of loops per millimeter, a higher PVS score, and a higher frequency of atypical loops. This information is important for the diagnostic evaluation of children in the context of autoimmune rheumatic diseases. Semin Arthritis Rheum 29:36-42. Copyright (C) 1999 by W.B. Saunders Company.
Keywords nail fold capillaroscopy
Raynaud's phenomenon
Language English
Date 1999-08-01
Published in Seminars in Arthritis and Rheumatism. Philadelphia: W B Saunders Co, v. 29, n. 1, p. 36-42, 1999.
ISSN 0049-0172 (Sherpa/Romeo, impact factor)
Publisher W B Saunders Co
Extent 36-42
Access rights Closed access
Type Review
Web of Science ID WOS:000082047600005

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