Examinando por Autor "Orellana Donoso, Mathias"

Mostrando 1 - 3 de 3
  • No hay miniatura disponible
    Ítem
    Anatomical variations and abnormalities of the maxillary region and clinical implications: A systematic review and metaanalysis
    (Lippincott Williams and Wilkins, 2023-09) Valenzuela-Fuenzalida, Juan José; Baez-Flores, Belén; Sepúlveda, Roberto Ávila; Medina, Claudia Moya; Pérez, Rubén; López, Esteban; Sanchis, Juan; Orellana Donoso, Mathias; Silva, Javiera Leyton; Rodriguez, Macarena Cecilia; Iwanaga, Joe
    Objective: The objective of this review is to investigate and analyze the anatomical variations present in the maxillary sinus (MS), through the examination of the prevalence of these variations, as well as the corresponding prevalence of clinically significant pathologies and complications associated with them. Methods: The search process was carried out in the following databases; MEDLINE, SCIELO, WOS, CINHAL, SCOPUS, and GOOGLE SCHOLAR, using as search terms; "Maxillary bone," "Maxillary sinus," "Paranasal sinus," "Anatomical variations," "Sinusitis" and "Clinical anatomy." Results: A total of 26 articles and 12969 samples were included, from which 12,594 subjects had their sex recorded giving a total of 5802 males and 6792 females. The variants reported by the included were Haller cells, Concha Bullosa, Number of septa, Hypoplastic sinus, Agger Nasi, Thickening of the MS mucosa, Deviation of the nasal septum, Accessory ostium, and Onodi cells. Among the mentioned, the ones that presented the greatest number of studies (between 8 and 10 studies included) were: the Haller Cells, the Concha Bullosa, and the Number of septa, where prevalence was 0.30, 0.36, 0.39 respectively. These variations can lead to sinusitis, cause some types of tumors, or affect neighboring structures that could be compromised by this variation. Conclusion: As a result, it is certainly complex to distinguish the presence of anatomical variations from pathological abnormalities. Therefore, knowledge of the different variations and their clinical relationships could be a useful asset for clinicians dedicated to this region. © 2023 Lippincott Williams and Wilkins. All rights reserved.
  • Miniatura
    Ítem
    Efectividad de la rehabilitación física en personas entre 18 a 65 años con síndrome de dolor lumbar inespecifico : una revisión sistemática
    (Universidad Andrés Bello, 2017) Bustamante Bilbao, Henry; Castillo Ramírez, Nicolás; Díaz Morales, Andrea; Leiva López, Angela; Orellana Donoso, Mathias; Arias Poblete, Leonidas; Facultad de Ciencias de la Rehabilitación; Escuela de Kinesiología
    El dolor lumbar inespecífico es un trastorno musculoesquelético frecuente en la comunidad. Según la Organización Mundial de la Salud, el dolor lumbar inespecífico es la primera causa de consulta médica a nivel mundial (70%). Las intervenciones kinésicas presentan un sin fin de estrategias para el dolor lumbar inespecífico, pero no hay consenso sobre la efectividad terapéutica en donde se logran mejoras significativas, repercutiendo en posibles retrasos en la rehabilitación. Determinar, mediante la revisión de la literatura, exclusivamente de ensayos clínicos, qué intervención(es) del dolor lumbar inespecífico, expresa(n) en función del tiempo, cambios significativos en la disminución del dolor y mejoría de la funcionalidad en personas entre 18 a 65 años. Metodología: Para lo anterior se realizó una búsqueda en 7 bases de datos (CINAHL, Pubmed, Medline, Nursing reference center, PEDro, Central y Rehabilitation & Sports) hasta el 10/08/2016, buscando ensayos clínicos aleatorizados que cumplieran los criterios de inclusión, exclusión y calidad metodológica, siendo esta última aplicando la escala de JADAD, Oxford y la herramienta de Higgins. La búsqueda en la literatura arrojó 21 artículos que cumplieron con los criterios de selección. Estos fueron categorizados en relación al tiempo y a las similitudes del tipo de intervención que se aplicó. Conformando la lista de intervenciones que lograron una mejora estadísticamente significativa en la intensidad del dolor y la funcionalidad, se logra determinar aquellos puntos que influyen para la elección y recomendación de las intervenciones. Finalmente, a pesar de las condiciones de los diferentes artículos, se logró determinar qué categorías de intervenciones tuvieron mejoras significativas dentro de un tiempo terapéutico. Estas son, dentro de ≤ 4 semanas, “Ejercicios” y “Agentes Físicos” son extremadamente recomendables. En la etapa de 5 a 8 semanas las categorías de “Actividad Graduada”, “Terapia Manual+Ejercicios Activos” y “Ejercicios de Estabilidad Core” son favorablemente recomendable. En el periodo entre 9 a 12 semanas las categorías de “Masajes”, “Ejercicios”, “Pilates” y “Terapia Cognitiva Funcional” resultaron ser favorablemente recomendables.
  • No hay miniatura disponible
    Ítem
    Systematic Review and Meta-Analysis: Recurrent Laryngeal Nerve Variants and Their Implication in Surgery and Neck Pathologies, Using the Anatomical Quality Assurance (AQUA) Checklist
    (MDPI, 2023-05) Valenzuela-Fuenzalida, Juan José; Baeza-Garrido, Vicente; Navia-Ramírez, María Fernanda; Cariseo-Ávila, Carolina; Bruna-Mejías, Alejandro; Becerra-Farfan, Álvaro; Lopez, Esteban; Orellana Donoso, Mathias; Loyola-Sepulveda, Walter
    Introduction: The recurrent laryngeal nerve (RLN) is the structure responsible for sensory and motor innervation of the larynx, and it has been shown that its lesion due to a lack of surgical rigor led to alterations such as respiratory obstruction due to vocal cords paralysis and permanent phonation impairment. The objectives of this review were to know the variants of the RLN and its clinical relevance in the neck region. Methods: This review considered specific scientific articles that were written in Spanish or English and published between 1960 and 2022. A systematic search was carried out in the electronic databases MEDLINE, WOS, CINAHL, SCOPUS, SCIELO, and Latin American and Caribbean Center for Information on Health Sciences to compile the available literature on the subject to be treated and was enrolled in PROSPERO. The included articles were studies that had a sample of RLN dissections or imaging, intervention group to look for RLN variants, or the comparison of the non-recurrent laryngeal nerve (NRLN) variants, and finally, its clinical correlations. Review articles and letters to the editor were excluded. All included articles were evaluated through quality assessment and risk of bias analysis using the methodological quality assurance tool for anatomical studies (AQUA). The extracted data in the meta-analysis were interpreted to calculate the prevalence of the RLN variants and their comparison and the relationship between the RLN and NRLN. The heterogeneity degree between included studies was assessed. Results: The included studies that showed variants of the RLN included in this review were 41, a total of 29,218. For the statistical analysis of the prevalence of the RLN variant, a forest plot was performed with 15 studies that met the condition of having a prevalence of less than 100%. As a result, the prevalence was shown to be 12% (95% CI, SD 0.11 to 0.14). Limitations that were present in this review were the publication bias of the included studies, the probability of not having carried out the most sensitive and specific search, and finally, the authors’ personal inclinations in selecting the articles. Discussion: This meta-analysis can be considered based on an update of the prevalence of RLN variants, in addition to considering that the results show some clinical correlations such as intra-surgical complications and with some pathologies and aspects function of the vocal cords, which could be a guideline in management prior to surgery or of interest for the diagnostic. © 2023 by the authors.