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Chronic venous leg ulcers are a major therapeutic challenge in clinical practice, and the search for new approaches to improve wound healing is essential. Many ulcers do not heal with traditional treatment using compression, debridement, and dressings. Skin-grafts variants, such as pinch grafts, punch grafts, split- or full-thickness skin grafts, and grafts derived from cells cultured in the laboratory, are among the most widely used options in ulcers that do not heal. In recent years, numerous studies have brought to our attention the important role of the hair follicle in the healing process of cutaneous wounds. Putting knowledge into practice, hair follicles from the scalp have been used in punch-type grafts transplanted to the base of chronic ulcers to stimulate healing. Results appear to be better than those with traditional hairless punch grafts, opening new lines of treatment for recalcitrant chronic venous ulcers.

We studied the ligand-displacement reaction of the Xylenol Orange complexes of Eu, Tb, and La with EDTA in a cetylpyridinium chloride micellar medium and determined the optimal conditions for the kinetic spectrophotometric determination of the different binary mixtures of the three rare earths, which were quantified over the ranges 0.061–0.532, 0.063–0.556, and 0.055–0.486 μg ml⁻¹Eu, Tb, and La, respectively, with the aid of a partial least-squares (PLS) multivariate calibration procedure.

Introducción: El objetivo de este estudio es crear un modelo predictivo de estancia postoperatoria prolongada (EPP) en pacientes sometidos a resección pulmonar anatómica, validarlo en una serie externa y evaluar la influencia de la EPP en el reingreso y la mortalidad a 90 días.

OBJETIVO: Analizar los factores predictores de RCp en pacientes con CPNM sometidos a resección pulmonar anatómica tras terapia de inducción y evaluar los resultados postoperatorios de estos pacientes.