• Mónica Francés Monasterio, Manuel Marrero Martínez-Carlón, Nuria Valdeolivas Hidalgo, Pablo García García, and Javier Fernández-Palacios.
• Servicio de Cirugía Plástica, Estética y Reparadora, Hospital Universitario de Gran Canaria Doctor Negrín, Las Palmas de Gran Canaria, España. Electronic address: m.francesmon90@outlook.com.
• Med Clin (Barc). 2023 Nov 10; 161 (9): 369373369-373.

BackgroundIn the past few years, the Canary Islands received immigrants from sub-Saharan countries that arrive to the coast after long boat trips in extreme adverse conditions. The named «trench foot» is a previously described infectious entity developed after feet wounds that get infected by being in contact with water, urine and excrements in these small and crowded boats. We describe a new clinical entity, not published yet, that consists in massive edema in the extremities associating necrosis of the skin and subcutaneous tissue that characteristically respects the muscle and with a non-infectious etiology.Material And MethodsA database including 86 patients arrived by boat («patera») from sub-Saharan countries from September 2020 to January 2022 was made and 39 qualitative and quantitative items were analyzed. The Research Unit performed an observational prospective statistical analysis.ResultsA total of 16 patients developed the entity described as necrotizing cellulitis. Its physiopathology completely differs from the one described in the trench foot, since all the cultures resulted sterile.ConclusionsWe postulate an inflammatory theory due to the osmotic effect from ingesting sea water and/or the aggressive fluid reposition when they arrive to the emergency room with severe dehydration and hypernatremia. Early surgical evacuation of the edema with escharotomies incisions alleviate the symptoms and prevents progression of the disorder.Copyright © 2023 Elsevier España, S.L.U. All rights reserved.

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