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461 results on '"Guzmán-López, Santos"'

1. Prevalence of Umbilical Hernias by Computed Tomography

Author

Ramos-Morales, Pedro Emiliano, Alvarez-Lozada, Luis Adrian, Arrambide-Garza, Francisco Javier, de la Fuente-Villarreal, David, Quiroz-Perales, Xavier Gerardo, Verdines-Perez, Adrian Manuel, Elizondo-Omaña, Rodrigo Enrique, Guzmán-López, Santos, and Quiroga-Garza, Alejandro

Published
2024
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4. Factors Influencing Scientific Achievements of Medical Students in the Anatomy Research Group: An Analysis from the Autonomous University of Nuevo León in Mexico

Author

Muñoz-Leija, Milton Alberto, Barrera, Francisco J., Zárate-Garza, Pablo Patricio, Quiroga-Garza, Alejandro, Martínez-Garza, Javier Humberto, de la Fuente-Villarreal, David, Guzmán-López, Santos, and Elizondo-Omaña, Rodrigo Enrique

Abstract

Scientific research and student involvement are critical to the formation of physicians, yet the number of medical researchers has decreased over time. To implement corrective strategies, the variables associated with positive research attitudes and productivity among medical students must be identified. The aim of this study was to evaluate the variables associated with students interested or involved in research. A validated questionnaire was applied to the student members of an established anatomy research group in a Mexican medical school with a six-year medical program. Data were collected and analyzed. A total of 85.5% (n = 77/90) students answered the survey with most respondents being second-year medical students. The majority of respondents indicated that the important component of conducting research was a contribution to the new knowledge (45.5%) and to the scientific community (42.9%). More than half of respondents mentioned a professor or a peer as the initial motivation to become involved in research. Lack of time was the main limitation (59.7%) to research involvement. Perceived benefits were knowledge and team work skills. Of those involved, most (85.7%) wished to continue participating in research as a complement to their clinical work. Professors and student colleagues were found to play an important motivational and recruitment role for medical research. These efforts in turn have developed into long-lasting mentor-mentee relationships. Students also anticipated that early involvement in research will positively influence the likelihood of future physicians' contribution and collaboration in research.

Published
2022
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7. Fixed-bearing unicompartmental knee arthroplasty provides a lower failure rate than mobile-bearing unicompartimental knee arthroplasty when used after a failed high tibial osteotomy: a systematic review and meta-analysis

Author

Morales-Avalos, Rodolfo, Perelli, Simone, Raygoza-Cortez, Karina, Padilla-Medina, José Ramón, Peña-Martínez, Víctor M., Guzmán-López, Santos, Zavala, José M. Diabb, Barrera, Francisco J., Vilchez-Cavazos, Félix, and Monllau, Juan Carlos

Published
2022
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8. Aged rats learn Morris Water maze using non-spatial search strategies evidenced by a parameter-based algorithm

Author

Villarreal-Silva Eliud Enrique, González-Navarro Alejandro Rafael, Salazar-Ybarra Rodolfo Amador, Quiroga-García Oscar, Cruz-Elizondo Miguel Angel de Jesús, García-García Aracely, Rodríguez-Rocha Humberto, Morales-Gómez Jesús Alberto, Quiroga-Garza Alejandro, Elizondo-Omaña Rodrigo Enrique, de León Ángel Raymundo Martínez-Ponce, and Guzmán-López Santos

Subjects
morris water maze, search strategy, aging, learning, memory, hippocampus, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
Abstract

Spatial learning and memory are used by all individuals who need to move in a space. Morris water maze (MWM) is an accepted method for its evaluation in murine models and has many protocols, ranging from the classic parameters of latency, distance, and number of crossings to the platform zone, to other more complex methods involving computerized trajectory analysis. Algorithm-based SS analysis is an alternative that enriches traditional classic parameters. We developed a non-computerized parameter-based Search Strategy Algorithm (SSA), to classify strategies and detect changes in spatial memory and learning. For this, our algorithm was validated using young and aged rats, evaluated by two observers who classified the trajectories of the rats based on the effectiveness, localization, and precision to reach the platform. SSA is classified into 10 categories, classified by effectiveness, initial direction, and precision. Traditional measurements were unable to show significant differences in the learning process. However, significant differences were identified in SSA. Young rats used a direct search strategy (SS), while aged rats preferred indirect ones. The number of platform crossings was the only variable to show the difference in the intermediate probe trial. The parameter-based algorithm represents an alternative to the computerized SS methods to analyze the spatial memory and learning process in young and age rats. We validate the use of SSA as an alternative to computerized SS analysis spatial learning acquisition. We demonstrated that aged rats had the ability to learn spatial memory tasks using different search strategies. The use of SSA resulted in a reliable and reproducible method to analyze MWM protocols.

Published
2022
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10. The Use of Clinical Reasoning Skills in the Setting of Uncertainty: A Case of Trial Femoral Head Migration

Author

Quiroga-Garza, Alejandro, Teran-Garza, Rodrigo, Elizondo-Omaña, Rodrigo Enrique, and Guzmán-López, Santos

Abstract

Clinical skills and medical knowledge enable physicians to overcome the uncertainty of emergent and rare clinical scenarios. Recently, a growing emphasis on evidence-based medicine (EBM) has flooded medical curricula of universities across the globe with guideline-based material, and while it has given teachers and students new tools to improve medical education, clinical reasoning must be reaffirmed in its capacity to provide physicians with the ability to solve unexpected clinical scenarios. Anatomical education in medical school should have two main objectives: to acquire anatomical knowledge and to develop the skill of applying that knowledge in clinical scenarios. The authors present a clinical scenario in which an unexpected and rare complication occurred during a routine elective hip replacement surgery. The general surgeon presiding over the case, also an anatomy professor, solved the problem using clinical reasoning and anatomical knowledge. It was a clear example of how clinical reasoning is key in approaching unprecedented, rare, or unknown complications. The intention of this scenario is to remind colleagues and medical schools that, although EBM is the standard, educators must uphold sound clinical reasoning to best prepare health care providers for their careers.

Published
2020
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15. Anatomy of foot Compartments: a systematic review

Author

Vazquez-Zorrilla, Daniel, Millan-Alanis, Juan Manuel, Alvarez-Villalobos, Neri Alejandro, Elizondo-Omaña, Rodrigo Enrique, Guzman-Lopez, Santos, Vilchez-Cavazos, Jose Felix, Fernandez-Rodarte, Bernardo Alfonso, and Quiroga-Garza, Alejandro

Published
2020
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16. Medical school studentsÓ? resilience and its relationship with demographic and non-demographic variables

Author

de la Garza-Garcia, Luis A., primary, de la Fuente-Villarreal, David, additional, Muñoz-Leija, Milton A., additional, Jezzini-Martinez, Sofía, additional, Quiroga-Garza, Alejandro, additional, Jacobo-Baca, Guillermo, additional, Salinas-Álvarez, Yolanda, additional, Martinez-Garza, Javier H., additional, Elizondo-Omaña, Rodrigo E., additional, and Guzmán-López, Santos, additional

Published
2024
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19. Early laparoscopic cholecystectomy in acute gallbladder perforation - Single-centre experience

Author

Angeles-Mar, Hermilo, Elizondo-Omaòa, Rodrigo, Guzmán-López, Santos, and Quiroga-Garza, Alejandro

Subjects
Laparoscopy -- Reports, Laparoscopic surgery -- Reports, Evidence-based medicine -- Reports, Health
Abstract

Byline: Hermilo. Angeles-Mar, Rodrigo. Elizondo-Omaòa, Santos. Guzmán-López, Alejandro. Quiroga-Garza Dear Sir, We sincerely applaud the work done by Krishnamurthy et al ., in which they report the single-centre experience for [...]

Published
2022

20. Safety Ranges in V3 Segment of the Vertebral Artery for Surgical Procedures at the Craniocervical Junction/Rangos de Seguridad en el Segmento V3 de la Arteria Vertebral para Procedimientos Quirurgicos en la Union Craneocervical

Author

Cruz-Elizondo, Miguel Angel de Jesús, Villarreal-Silva, Eliud Enrique, Quiroga-Garza, Alejandro, Morales-Gómez, Jesus Alberto, González-Gómez, Marco Augusto, Elizondo-Omaña, Rodrigo Enrique, Martínez-Ponce de León, Angel Raymundo, and Guzmán-López, Santos

Published
2020

25. Near-Peer Teaching Strategy in a Large Human Anatomy Course: Perceptions of Near-Peer Instructors

Author

Reyes-Hernández, Cynthia Guadalupe, Carmona Pulido, Juan Manuel, De la Garza Chapa, Roberto Isaac, Serna Vázquez, Ruth Patricia, Alcalá Briones, Ricardo Daniel, Plasencia Banda, Perla Marina, Villarreal Silva, Eliud Enrique, Jacobo Baca, Guillermo, de la Garza Castro, Oscar, Elizondo Omaña, Rodrigo Enrique, and Guzmán López, Santos

Abstract

Near-peer teaching (NPT) is a strategy in which senior students assume the instructor role with junior peers (mentees). Senior students develop unique skills and knowledge through NPT, an experience which extends their learning beyond content mastery. Different teaching modules featuring NPT were utilized in the human anatomy course at the School of Medicine, Autonomous University of Nuevo Leon in Monterrey, Mexico. Modules included: Theory, Clinical Hour, Imaging Anatomy, and Laboratory. The aim of this study was to assess instructor participants' perceptions on the benefits of the NPT strategy in the anatomy classroom. A survey was administered to anatomy course instructors who utilized NPT strategies during winter, fall, and spring semesters of the 2012-2013 school year. A total of 120 instructors were enrolled in the study. There were different perceptions of instructors' roles. Theory and Imaging Anatomy instructors considered themselves to be information providers and resource developers, whereas Clinical Hour and Laboratory instructors saw themselves more as facilitators, role models, and planners. All instructors' opinions on the benefits of NPT were positive. Thus, in this article, the authors find NPT to be a strategy that promotes self-learning, a vital skill.

Published
2015
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26. Glenoid shape is sexually dimorphic

Author

Zdilla, Matthew, primary, French, Evan, additional, Sowinski, Halee, additional, Alfaro-Gomez, Uriel, additional, Guzmán-López, Santos, additional, Elizondo-Omaña, Rodrigo, additional, and Quiroga-Garza, Alejandro, additional

Published
2023
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31. Analisis Morfometrico del Axis para l a Fijacion Atlantoaxial

Author

Morales-Avalos, Rodolfo, Villarreal-Garcia, Francisco Ismael, Requena-Araujo, Priscila Madelein, Vílchez-Cavazos, Félix, Martin Reyes-Fernández, Pedro, Martínez-Gutierrez, Oscar Armando, Peña-Martínez, Victor Manuel, Guzmán-López, Santos, and Elizondo-Omaña, Rodrigo E.

Published
2018

33. Clinical and surgical implications regarding morphometric variations of the medial wall of the orbit in relation to age and gender

Author

Morales-Avalos, Rodolfo, Santos-Martínez, Arlette Gabriela, Ávalos-Fernández, Cesia Gisela, Mohamed-Noriega, Karim, Sánchez-Mejorada, Gabriela, Montemayor-Alatorre, Adolfo, Martínez-Fernández, David A., Espinosa-Uribe, Abraham G., Mohamed-Noriega, Jibran, Cuervo-Lozano, Edgar E., Mohamed-Hamsho, Jesús, Quiroga-García, Oscar, Lugo-Guillen, Roberto A., Guzmán-López, Santos, and Elizondo-Omaña, Rodrigo E.

Published
2016
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34. Four-vessel occlusion model using aged male Wistar rats: a reliable model to resolve the discrepancy related to age in cerebral ischemia research

Author

Ancer-Rodríguez, Jesús, Villarreal-Silva, Eliud Enrique, Salazar-Ybarra, Rodolfo Amador, Quiroga-García, Oscar, Rodríguez-Rocha, Humberto, García-García, Aracely, Morales-Avalos, Rodolfo, Morales-Gómez, Jesús Alberto, Quiroga-Garza, Alejandro, Saucedo-Cárdenas, Odila, Xu, Zao Cheng, Elizondo-Omaña, Rodrigo Enrique, Martínez-Ponce-de-León, Angel Raymundo, and Guzmán-López, Santos

Published
2016
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35. Burnout Among First-Year Medical Students During COVID-19 Pandemic in Mexico: A Cross-sectional Study

Author

Jezzini Martínez, Sofía, Martínez Garza, Javier Humberto, Quiroga Garza, Alejandro, Zarate Garza, Pablo Patricio, Jacobo Baca, Guillermo, Gutiérrez de la O, Jorge, Fuente Villarreal, David de la, Salinas Álvarez, Yolanda, Elizondo Omaña, Rodrigo Enrique, Guzmán López, Santos, Jezzini Martínez, Sofía, Martínez Garza, Javier Humberto, Quiroga Garza, Alejandro, Zarate Garza, Pablo Patricio, Jacobo Baca, Guillermo, Gutiérrez de la O, Jorge, Fuente Villarreal, David de la, Salinas Álvarez, Yolanda, Elizondo Omaña, Rodrigo Enrique, and Guzmán López, Santos

Abstract

Background: The coronavirus pandemic is an international public health emergency without precedence in modern history. It represents a challenge to the academic and psychological stability of students due to the changes it can cause in daily life. This study aimed to evaluate the prevalence and level of burnout in medical students caused by the academic and psychological instability that the pandemic represents. Methods: A cross-sectional prospective study was designed using the Maslach Burnout Inventory-Student Survey (MBI-SS). This evaluated the emotional exhaustion due to study demands, cynicism, and negative self-academic efficacy. This study was based in the school of medicine of the Universidad Autonoma de Nuevo Leon (UANL), in Monterrey, Mexico during the Spring semester 2020. Results: A total of 154 (93 women and 61 men) first-year medical students participated (response rate 36.4%). Burnout was identified in 14.9% (n=23), and high emotional exhaustion in 53.9% (n=83). Burnout was almost 4 times more likely to develop in men than in women (aOR = 4.8; 95% Confidence Interval=1.7-13.3) when considering age as a covariable in the multivariable model. Conclusion: Further epidemiological studies of burnout syndrome in medical students are needed, and schools should consider promoting mental health and making programs available for their students to help overcome the emotional and social challenges during the pandemic.

Published
2022

36. The importance of simulation training in surgical sciences

Author

Fernández-Reyes, Bernardo A., primary, Flores-González, Ana K., additional, Alvarez-Lozada, Luis Adrian, additional, Guerrero-Zertuche, Juventino T., additional, Arrambide-Garza, Francisco J., additional, Quiroz-Perales, Xavier G., additional, Quiroga-Garza, Alejandro, additional, Elizondo-Omaña, Rodrigo E., additional, and Guzmán-López, Santos, additional

Published
2022
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38. Clinical and Immunologic Efficacy of the Recombinant Adenovirus Type-5-Vectored (CanSino Bio) Vaccine in University Professors during the COVID-19 Delta Wave

Author

Guzmán-López, Santos, primary, Darwich-Salazar, Armine, additional, Bocanegra-Ibarias, Paola, additional, Salas-Treviño, Daniel, additional, Flores-Treviño, Samantha, additional, Pérez-Alba, Eduardo, additional, Nuzzolo-Shihadeh, Laura M., additional, Pérez-Rodríguez, Edelmiro, additional, and Camacho-Ortiz, Adrián, additional

Published
2022
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40. Copper Induces Damage, Oxidative Stress and Cell Death in Endothelium of Chronic Intoxicated Wistar Rats

Author

Fernández-Rodarte, Bernardo A, primary, Soto-Domínguez, Adolfo, additional, González-Navarro, Alejandro, additional, Mellado-Ayala, Maximiliano, additional, Piña-Mendoza, Edgar I, additional, Rodríguez-Rocha, Humberto, additional, Montes-de-Oca-Luna, Roberto, additional, Guerra-Leal, Jesús D, additional, Guzmán-López, Santos, additional, and Elizondo-Omaña, Rodrigo E, additional

Published
2022
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44. Relationship of Neutrophil-to-Lymphocyte and Platelet-to-Lymphocyte Ratio With Visual Acuity After Surgical Repair of Open Globe Injury

Author

Mohamed-Noriega, Karim, primary, Treviño-Herrera, Alan B., additional, Mohamed-Noriega, Jibran, additional, Velasco-Sepúlveda, Braulio H., additional, Martínez-Pacheco, Víctor A., additional, Guevara-Villarreal, Dante A., additional, Rodríguez-Medellín, Delia L., additional, Sepúlveda-Salinas, Anna G., additional, Villarreal-Méndez, Gerardo, additional, González-Cortés, Jesús H., additional, Elizondo-Omaña, Rodrigo E., additional, Guzmán-López, Santos, additional, and Mohamed-Hamsho, Jesús, additional

Published
2021
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45. Fixed-bearing unicompartmental knee arthroplasty provides a lower failure rate than mobile-bearing unicompartimental knee arthroplasty when used after a failed high tibial osteotomy: a systematic review and meta-analysis

Author

Morales-Avalos, Rodolfo, primary, Perelli, Simone, additional, Raygoza-Cortez, Karina, additional, Padilla-Medina, José Ramón, additional, Peña-Martínez, Víctor M., additional, Guzmán-López, Santos, additional, Zavala, José M. Diabb, additional, Barrera, Francisco J., additional, Vilchez-Cavazos, Félix, additional, and Monllau, Juan Carlos, additional

Published
2021
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47. Prevalence of Morphological Variations Associated With Femoroacetabular Impingement According to Age and Sex : A Study of 1878 Asymptomatic Hips in Nonprofessional Athletes

Author

Morales-Avalos, Rodolfo, Tapia-Náñez, Adriana, Simental-Mendía, Mario, Elizondo-Riojas, Guillermo, Morcos-Sandino, Michelle, Tey-Pons, Marc, Peña-Martínez, Víctor M., Barrera, Francisco J., Guzmán López, Santos, Elizondo-Omaña, Rodrigo E., Vílchez-Cavazos, Félix, and Universitat Autònoma de Barcelona

Subjects
Morphology, Radiography, Alpha angle, Age and sex, Asymptomatic, Article, Anatomic variant, 03 medical and health sciences, 0302 clinical medicine, Pincer, medicine, Prevalence, Orthopedics and Sports Medicine, Femoroacetabular impingement, Orthodontics, 030222 orthopedics, Cam, biology, business.industry, Athletes, 030229 sport sciences, medicine.disease, biology.organism_classification, medicine.symptom, business
Abstract

Background:Radiographic findings related to the cam and pincer variants of femoroacetabular impingement (FAI) include measurements of the alpha angle and lateral center-edge angle (LCEA). The function of these radiographic findings has been put into question because of high heterogeneity in reported studies.Purpose:The aim of this study was 3-fold: (1) to determine the prevalence of cam and pincer variants according to sex and age on anteroposterior (AP) pelvic radiographs from an asymptomatic nonathletic population, (2) to identify the most common radiographic signs of cam- and pincer-type variants, and (3) to determine if there are variations in the prevalence of these radiographic signs according to sex and age.Study Design:Cross-sectional study; Level of evidence, 3.Methods:There were 3 independent observers who retrospectively analyzed the 939 AP pelvic radiographs (1878 hips) of patients aged 18 to 50 years who did not have hip symptoms and who were not professional athletes. The prevalence of the cam and pincer variants according to the alpha angle and LCEA, respectively, and the presence of other radiographic signs commonly associated with these variables were determined in the overall population and by subgroup according to sex and age group (18-30, 31-40, and 41-50 years). Descriptive and inferential statistics were used to analyze the study sample.Results:The mean age of the included population was 31.0 ± 9.2 years, and 68.2% were male. The prevalence of the cam-type variant was 29.7% (558/1878), and that of the pincer-type variant was 24.3% (456/1878). The radiographic signs that were most associated with the cam and pincer variants were a pistol-grip deformity and the crossover sign, respectively. Significant differences ( P < .001) in the prevalence of these variants were identified between men and women in both variants. No differences were observed in the alpha angle or LCEA according to sex or age.Conclusion:Radiographic findings suggestive of FAI had significant variations with respect to sex and age in this study sample. This study provides information to determine the prevalence of these anatomic variants in the general population.

Published
2021

49. MRI evaluation of the peripheral attachments of the lateral meniscal body: the menisco-tibio-popliteus-fibular complex

Author

Morales-Avalos, Rodolfo, primary, Masferrer-Pino, Ángel, additional, Ruiz-Chapa, Eustorgio, additional, Padilla-Medina, José Ramón, additional, Vilchez-Cavazos, Félix, additional, Peña-Martínez, Víctor, additional, Elizondo-Omaña, Rodrigo, additional, Perelli, Simone, additional, Guzmán-López, Santos, additional, García-Quintanilla, Juan Francisco, additional, and Monllau, Joan Carles, additional

Published
2021
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50. Factors Influencing Scientific Achievements of Medical Students in the Anatomy Research Group: An Analysis From the Autonomous University of Nuevo León in Mexico

Author

Muñoz‐Leija, Milton Alberto, primary, Barrera, Francisco J., additional, Zárate‐Garza, Pablo Patricio, additional, Quiroga‐Garza, Alejandro, additional, Martínez‐Garza, Javier Humberto, additional, de la Fuente‐Villarreal, David, additional, Guzmán‐López, Santos, additional, and Elizondo‐Omaña, Rodrigo Enrique, additional

Published
2021
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