Browsing by Author "Uribe P."

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    Patterns of Recurrence of Cutaneous Melanoma: A Literature Review
    (Springer International Publishing, 2023) Peirano D.; Donoso F.; Vargas S.; Hidalgo L.; Aguero R.; Uribe P.; Mondaca S.; Navarrete-Dechent C.
    ©2023 Peirano et al.The incidence of melanoma has been dramatically increasing over the last decades. Melanoma is considered to have a high metastatic potential and it can progress via lymphatic vessels or through hematogenous metastasis. Different patterns of recurrence have been described, namely, local, satellite, and in transit metastasis (LCIT), lymphatic metastasis, and systemic metastasis. With a more advanced melanoma stage at diagnosis, there is a higher risk for systemic metastasis in comparison to LCIT; in contrast, early-stage melanoma tends to recur more frequently as LCIT and less commonly as systematic metastasis. The aim of this review was to summarize the patterns of recurrence of cutaneous melanoma, giving the clinician a practical summary for diagnosis, prognosis, and surveillance. There is a knowledge gap of the common patterns of recurrence that needs to be addressed to better identify patients at high risk of disease recurrence and personalize surveillance strategies as well as patient counseling.
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    Rapid implementation of tele-dermatology during COVID-19 pandemic in an academic dermatology departmentRápida implementación de teledermatología durante la pandemia por COVID-19: lecciones aprendidas de un departamento académico de Dermatología
    (HUMANA PRESS INC, 2021) Ramirez-Cornejo C.; Munoz-Lopez C.; Del Barrio-Diaz P.; Jaque A.; Majerson D.; Navarrete-Dechent C.; Uribe P.; Vera-Kellet C.; Abarzua A.; Bello C.; Cardenas C.; Carreno N.; Concha M.; Cossio M.L.; Curi M.; Del Puerto C.; Downey C.; Droppelmann K.; Garcia-Huidobro I.; Giesen L.; Gompertz-Mattar M.; Harz-Fresno I.; Kam S.; Kolbach M.; Navajas L.; Reyes-Baraona F.; Rubio R.; Salomone C.; Sandoval M.; Silva S.; Valle E.; Zegpi M.S.; Pertuze C.; Valderrama S.
    © 2021 Sociedad Medica de Santiago. All rights reserved.Background: The day after COVID-19 quarantine started, we initiated patient care through Tele-dermatology. Aim: To report the experience of the implementation of Telemedicine in dermatology and to assess its impact on the number of dermatological visits compared with the pre-pandemic period. Material and methods: The study was conducted between March 27th, 2020, and April 30th, 2020. All patients submitted clinical images of their skin condition via secure email before the telemedicine visit. All telemedicine visits were conducted using the Zoom video conferencing platform. Patient demographics and medical history were recorded. If the dermatologist was unable to reach a diagnosis, the patient was sent for an in-person visit, skin biopsy, or additional laboratory workup. Results: We recorded 1,357 Tele dermatology visits from 1,222 patients aged 29 ± 18 years (38% males). Visits increased from 104 to 298 from the first to the last week, corresponding to 17% of the patient volume seen before the pandemic (1,709 in-person patients/week). A preliminary diagnosis was made in 95% of cases. Ninety percent of patients sent photos. Fifty eight percent of cases were chronic diseases, and were classified as inflammatory in 68%, infectious in 15%, neoplastic/tumoral in 7%, or other conditions in 11%. Less than 1% of these visits were COVID-19 related. Conclusions: In this prospective study of Tele-dermatology lasting five weeks, a preliminary diagnosis could be made in approximately 95% of cases and in the first five weeks of implementation, a volume of consultations equivalent to 17% of those made in the pre-pandemic period was carried out. Therefore, Tele-dermatology can be implemented quickly and successfully in practices when healthcare access is limited.
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    Three-dimensional reconstruction of eccrine poroma vessels seen under reflectance confocal microscopy
    (Springer International Publishing, 2023) Hidalgo L.; Hanlon K.L.; Correa-Selm L.; Villaseca M.A.; Carrasco K.; Peirano D.; Donoso F.; Uribe P.; Navarrete-Dechent C.
    © 2023 IOP Publishing Ltd.Because solar light, from Earth perspective, a curve is drawn in Moon’s surface that separates its dark side from the illuminated one. This curve is known as the terminator curve. In this article we prove, using direct and indirect methods, that the terminator curve corresponds to an ellipse. This is demonstrated using mathematical concepts and photographs of the Moon that are analysed with a geometrical software. Using this information, we also show how to calculate the illuminated fraction area of the Moon depending on its day of rotation. We obtain excellent approximations regarding the values given by computational systems. We discuss the results of considering the Moon as a flat disk or like a sphere. We analyse the technical difficulties of the process and the mathematical tools needed for more precise calculations. We also put in context this demonstration of the ellipticity of the terminator curve for any interior planet illuminated by a central star of any planetary system, seen from a outsider planet, the case in which the phases are more noticeable. Finally we extend the previous calculations to analyse the illuminated percentage of the inner planets Mercury and Venus, obtaining excellent results in the case of Venus.