Is Scleroderma Pattern Able to Address a Specific Diagnosis of Connective Tissue Diseases?
DOI:
https://doi.org/10.12970/2310-9874.2013.01.02.2Keywords:
Nailfold videocapillaroscopy, connective tissues diseases, scleroderma-like pattern.Abstract
Introduction: Nailfold videocapillaroscopy (NVC) is a non-invasive imaging technique widely used to investigate microvascular abnormalities in different connective tissue diseases (CTDs).
Methods: We conducted a retrospective study where we analysed 415 patients submitted to NVC. Patients with scleroderma-like pattern were selected to investigate if there are specific NCV changes, which discriminate among the different CTDs. Ninety-one patients met this requirement and had a diagnosis of CTD. For each patient the following abnormalities were observed: enlarged and giant capillaries, oedema, loss and rarefaction of capillaries, long loops and minor dystrophies.
Results: Multivariate analyses did not reveal any specific modification among the analysed co-variables for scleroderma (SS) and dermatomyositis (DM). For the others CTDs analysed in this study, logistic regression revealed that some of the capilloroscopic features could be indicative of specific diseases. Of note, the presence of megacapillaries with long loops in a scleroderma-like pattern seems to be highly indicative for a diagnosis of systemic lupus erythaematosus (SLE).
Conclusions: Our data showed that in CTDs with a scleroderma-like pattern, the NVC variables alone are not able to discriminate for a specific diagnosis of CTD. Nevertheless, there are some NVC features, which could strongly address the differential diagnosis toward a specific CTD.
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