Preoperative Vascular Planning of Free Flaps: Comparative Study of Computed Tomographic Angiography, Color Doppler Ultrasonography, and Hand-Held Doppler.

BACKGROUND: Preoperative planning of microsurgical perforator free flaps continues to be a discussion topic among microsurgeons. The purpose of this study was to compare the ability of three methods of preoperative vascular mapping-hand-held Doppler imaging, color Doppler ultrasonography, and computed tomographic angiography-to detect perforators and their concordance with surgical findings. METHODS: A prospective study was performed to evaluate the sensitivity, specificity, and accuracy of hand-held Doppler imaging, color Doppler ultrasonography, and computed tomographic angiography to detect free flap perforators. Each patient undergoing a free flap reconstruction was studied preoperatively with the three methods, and the results were compared to the intraoperative findings. RESULTS: Fifty-three patients undergoing autologous tissue reconstruction were included. Most reconstructions (71.7 percent) were performed with anterolateral thigh flaps. The positive predictive value (color Doppler ultrasonography, 100 percent; computed tomographic angiography, 100 percent; hand-held Doppler imaging, 88.6 percent) and negative predictive value (color Doppler ultrasonography, 100 percent; computed tomographic angiography, 94.3 percent; hand-held Doppler imaging, 90.5 percent) rates were significantly different between methods. The high resolution of the color Doppler ultrasonography probe provided a direct vision of the vasculature arborization and efficiently detected vessels with diameters of less than 0.5 mm. The sensitivity, specificity, and accuracy of color Doppler ultrasonography were greater than those of both computed tomographic angiography and hand-held Doppler imaging. There was 100 percent concordance between color Doppler ultrasonography perforators and the surgical findings. CONCLUSIONS: Color Doppler ultrasonography provides a reproducible, harmless, and accurate way to visualize vascular anatomy. It has a high correlation with the surgical findings, signifying advantages over hand-held Doppler and computed tomographic angiography in sensitivity, specificity, and accuracy. CLINICAL QUESTION/LEVEL OF EVIDENCE: Diagnostic, II.

Linfoma anaplásico de células grandes e implantes mamarios: revisión sistemática de las casuísticas publicadas / Anaplastic large cell lymphoma and breast implants: systematic review of published cases

INTRODUCCIÓN Y OBJETIVO: Desde 1995 en que se publicó la primera notificación que relacionaba el linfoma anaplásico de células grandes al hecho de portar implantes mamarios (LACG-AIM) han transcurrido más de 25 años y han sido publicados cientos de artículos. El presente trabajo tiene como objetivo realizar una revisión sistemática y analítica de los casos publicados, así como sintetizar el conocimiento actual sobre esta entidad y acercarlo al lector de habla hispana. MATERIAL Y MÉTODO: Realizamos una búsqueda sistemática en las bases de datos PubMed, ScienceDirect y SciELO así como en el buscador de Google Académico entre 1995 y octubre de 2019, que pretende revisar las características de los casos recogidos en la literatura en dicho periodo de tiempo. RESULTADOS: El número total de casos recogidos en la bibliografía analizada fue de 122. La información resultó heterogénea y mayoritariamente basada en notificaciones de casos. Cabe destacar la escasez de casos publicados desde países íbero-latinoamericanos. Exponemos los principales datos recogidos relativos a características del linfoma, sintomatología, diagnóstico, patogenia, estudios genéticos, mutaciones, tratamiento, pronóstico y supervivencia. CONCLUSIONES: Aunque el diagnóstico y tratamiento actual del LACG-AIM se encuentran bastante estandarizados, la incidencia real y la etiología de esta entidad necesitan de estudios más rigurosos. La falta de criterios comunes a la hora de recoger o notificar los casos hace difícil una recogida veraz y uniforme. Es necesaria la comunicación de cualquier incidente relacionado con las prótesis mamarias, tanto a los registros nacionales de implantes como a la comunidad científica, a fin de recopilar información de calidad como base para latoma de decisiones basadas en evidencia

BACKGROUND AND OBJECTIVE: In 1995, the first notification relating anaplastic large cell lymphoma (BIA-ALCL) and breast implants was established. Twenty four years later, hundreds of articles have been published about this topic. The aim of this study is to review the published cases and summarize the current knowledge about this entity bringing it closer to Hispanic readers. METHODS: A systematic review was performed in PubMed, ScienceDirect, SciELO and Google Scholar databases since 1995 to October 2019. RESULTS: A total number of 122 case reports were analyzed. The information collected was heterogeneous. The shortage of Ibero-Latinoamerican published cases was evidenced. Data elements abstracted included information about patient demographics, medical history, implant characteristics, presenting symptoms, diagnosis and staging, treatment, and patient outcomes. CONCLUSIONS: Despite diagnosis and current treatment to BIA-ALCL are fairly standardized, more rigorous studies are required to establish actual incidence and etiology. The lack of common criteria when collecting or reporting clinical cases makes difficult a truthful and uniform data collection. Communication of any incident related to breast implants, both to the national implant registries and to the scientific community, is necessary in order to gather quality information as a basis for evidence-based decision making