Browsing by Autor "Adela Guerrero"

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    Alopecias
    (Elsevier BV, 2011) Adela Guerrero; Mariana Kahn
    Desde los inicios de la humanidad el cabello ha tenido una importancia trascendental desde el punto de vista religioso, racial, sexual y ornamental. En los seres humanos el pelo es un vestigio evolutivo, a diferencia de otros seres vivos, que cumple funciones de protección y regulación de la temperatura. El número de pelos que se desprenden normalmente es de aproximadamente 100 por día y esta tasa aumenta al final del verano y principios de otoño, quizás debido a efectos de la mayor radiación solar y temperatura. La alopecia es la pérdida anormal del cabello, resultado de un proceso patológico. Las causas de alopecia son diversas y representan un desafío tanto para el médico como para el paciente. El objetivo de esta revisión es profundizar en la fisiopatología del cabello, las causas de alopecia y su tratamiento. Hair has been always an important issue for humanity, from a religious, racial, sexual and ornamental point of view. In human beings hair is an evolution vestige. In other animals, hair serves to regulate body temperature and also has protective functions. Normally one hundred hairs fall in a day, and this rate increases by the end of summer and the first days of autumn, maybe because of the more temperature end radiation. Alopecia is the abnormal loss of hair because of a pathologic process. The causes of alopecia are diverse, and they represent a challenge for the doctor and patient. The aim of this study is to deepen in the physiopathology of hair, causes of hair loss and their management.
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    Cauda Helicis as a Surgical Alternative for Nasal Tip Reconstruction: An Anatomical Study
    (SAGE Publishing, 2025) Díaz León; Adela Guerrero; Gustavo Adolfo Londoño
    <b>Objectives:</b> To present the cauda helicis as a novel and anatomically compatible graft source for reconstructing the cartilaginous support structure of the nasal tip, highlighting its morphological similarity to the alar cartilages and potential advantages over traditional donor sites. <b>Methods:</b> A surgical dissection protocol was performed on anatomical models from 14 fresh cadavers in 2017. The approach included harvesting the cauda helicis, with the possibility of extending the donor area to the scaphoid fossa. A systematic literature search was conducted, considering all publications indexed up to May 2025, no publications reporting the use of the cauda helicis as a graft were identified. <b>Results:</b> The cauda helicis demonstrated anatomical and structural similarities to the alar cartilages. The harvesting technique proved to be technically straightforward, with a low complication profile and imperceptible impact on the natural auricular contour. The donor area extension into the scaphoid fossa provided sufficient graft material for total or partial reconstruction, achieving consistent outcomes in terms of morphology and graft compatibility. <b>Conclusions:</b> The cauda helicis is a viable, safe, and technically simple alternative for structural nasal tip reconstruction. Its anatomical similarity to the alar cartilages and low morbidity at the donor site position it as a promising option for both reconstructive and aesthetic nasal surgery. To our knowledge, this technique has not been previously reported in the literature.
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