Resumo

ECHAVARRIA CROSS, Alejandro; ARANGO GUERRA, Pablo; PEREZ RESTREPO, María  e  CHAVARRIAGA RESTREPO, Andrés. Blue digit syndrome: from skin to a multisystemic etiology. Rev. argent. reumatolg. [online]. 2022, vol.33, n.3, pp.173-185. ISSN 0327-4411.  http://dx.doi.org/10.47196/rar.v33i3.676.

Blue finger sign (BFS) is a rare condition caused mainly by occlusion of peripheral vasculature. Clinically it may manifest as a bluish, or erythrocyanotic discoloration of one or more fingers in the absence of trauma and freezing conditions. The etiologies are multiple and include arterial flow obstruction, decreased venous flow, and altered blood viscosity. The importance of recognizing the sign as a reason for consultation lies in the early diagnosis and the establishment of a treatment that finally avoids the natural evolution of the disease towards necrosis and finally amputation or death of the patient. We propose a diagnostic algorithm based on recognizing elements of the clinical history that guide the etiology and paraclinical available from the Emergency Department.

Palavras-chave : blue digit syndrome; ischemia; peripheral vessel occlusion.

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