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1.
J Anat ; 244(1): 184-201, 2024 01.
Artículo en Inglés | MEDLINE | ID: mdl-37664883

RESUMEN

Anatomy forms a key component of veterinary curricula, but, in the context of an evolving profession, curricula are adapting and changing accordingly. There is a lack of guidance for educators regarding the levels of anatomical knowledge required for a graduate to be considered safe or competent. A formal review of veterinary anatomy learning outcomes (LOs) is therefore timely to support curriculum development in this rapidly evolving field. This study aimed to create a set of LOs which reflect the recommended core requirements for a new graduate veterinarian. A consensus approach using a modified Delphi method was used. The Delphi panel consisted of 23 experienced and active veterinary anatomy educators from veterinary schools within the UK and Ireland. The process had four stages: (1) Research team review, pre-screening and modification of a list of existing LOs (adapted from the Core Regional Anatomy Syllabus) which then formed the initial set of outcomes sent for review; (2) Delphi Round 1; (3) Delphi Round 2; (4) Post-Delphi final screening and review. Qualitative data outlining the rationale for modification and rejection of LOs were analysed via content analysis. 167 LOs were initially presented to the Delphi panel in Round 1. 64 of those were accepted, 79 recommended for modification and 23 rejected. 122 LOs were presented to the Delphi panel in Round 2. Of these, 86 outcomes were accepted, 10 modified and 26 rejected. 160 LOs were ultimately accepted and form the Veterinary Anatomy Core Syllabus. Key themes arising from analysis include the removal of unnecessary detail and increased focus on the relevance of competencies required of a new veterinary graduate. The syllabus presented may be used by curriculum planners, teachers and students within veterinary education worldwide.


Asunto(s)
Anatomía , Educación de Pregrado en Medicina , Humanos , Anatomía Veterinaria , Técnica Delphi , Anatomía Regional , Curriculum , Educación de Pregrado en Medicina/métodos , Anatomía/educación
2.
J Hist Med Allied Sci ; 79(2): 101-114, 2024 Apr 02.
Artículo en Inglés | MEDLINE | ID: mdl-37578803

RESUMEN

The numerous votive uteri found across the central Italian peninsula from the fourth to first centuries BCE are puzzlingly evocative of the human simplex uterus, which is visually distinct from the bicornuate uteri characteristic of most other mammals. However, human dissection is not attested for this time and place, while animal butchery was common. This article uses modern veterinary anatomical imagery to argue that animal uteri - specifically as they appear when pregnant - were indeed models underlying the votive depictions. Some of the variant forms of the votives are highly evocative of various features of the pregnant bicornuate uterus. Further, medical views on the human uterus throughout classical antiquity were informed by animal uteri. Taken together, the visual and textual evidence indicate that animal models were inextricably integrated into ancient conceptions of the human uterus across the classical world, including in the production of the Italic votives in question.


Asunto(s)
Anatomía Veterinaria , Útero , Femenino , Animales , Humanos , Mamíferos
3.
J Vet Med Educ ; 50(2): 234-242, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35324419

RESUMEN

Detailed knowledge of anatomical systems is vital for clinical veterinary practice. However, students often find it difficult to transfer skills learned from textbooks to real-life practice. In this study, a three-dimensional computer model representing equine paranasal sinus anatomy (3D-ESM) was created and evaluated for its contribution to student understanding of the 3D dynamic nature of the system. Veterinary students and equine professionals at the University of Bristol were randomly allocated into experimental (3D model) and control (2D lecture) groups. A pre-/post-study design was used to evaluate the efficacy of the 3D model through a pre-/post-multiple-choice question (MCQ) anatomical knowledge exam and a pre-/post-questionnaire gathering information on participant demographics, confidence, and satisfaction. No statistically significant difference was found between 3D and 2D groups' post-MCQ exam scores (t39 = 1.289, p = .205). 3D group participant feedback was more positive than 2D group feedback, and 3D group satisfaction scores on Likert questions were significantly higher (t118 = -5.196, p < .001). Additionally, confidence scores were significantly higher in the 3D group than in the 2D group immediately following the study (p < .05). Participants' open-text responses indicated they found the 3D model helpful in learning the complex anatomy of the equine paranasal sinuses. Findings suggest the 3D-ESM is an effective educational tool that aids in confidence, enjoyment, and knowledge acquisition. Though it was not better than traditional methods in terms of anatomy knowledge exam scores, the model is a valuable inclusion into the veterinary anatomy curriculum.


Asunto(s)
Anatomía , Educación en Veterinaria , Senos Paranasales , Animales , Anatomía/educación , Anatomía Veterinaria/educación , Simulación por Computador , Educación en Veterinaria/métodos , Evaluación Educacional , Caballos
4.
Adv Physiol Educ ; 46(4): 647-650, 2022 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-36135938

RESUMEN

Gamification is a dynamic tool for educational transformation useful to encourage student interest and enhance learning. Here we present a study conducted to investigate the effectiveness of an educational card game developed by us in veterinary anatomy practicals to reinforce knowledge acquisition in veterinary students. A total of four sets of cards were designed, each one with different anatomical topics (structure identification, articulation and positioning, clinical anatomy, and comparative anatomy); students were arranged in small groups (7-10 students per group) and played the game at the end of each anatomy practical session, discussing the corresponding questions, randomly chosen, as a team. This activity was highly valued by students, most of whom (>80%) expressed that the game was enjoyable, challenging, helpful to improve their knowledge and understanding in clinical anatomy, and effective for anatomy exam preparation. Thus, the use of educational games in practical sessions seems to improve student engagement in the learning process individually and as a team.NEW & NOTEWORTHY The development and implementation of a card game as a training resource that allows learning veterinary anatomy in a motivating and cooperative environment, promoting teamwork, relationships, and trust and communication between colleagues, is described. Stimulating the ability to solve problems as a team has provided help to students preparing for their exams in a more dynamic and enjoyable way.


Asunto(s)
Anatomía , Educación en Veterinaria , Anatomía/educación , Anatomía Veterinaria/educación , Evaluación Educacional , Humanos , Aprendizaje , Estudiantes
5.
J Vet Med Educ ; 49(3): 346-352, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33950795

RESUMEN

Three-dimensional (3D) printed models of anatomic structures offer an alternative to studying manufactured, "idealized" models or cadaveric specimens. The utility of 3D printed models of the heart for clinical veterinary students learning echocardiographic anatomy is unreported. This study aimed to assess the feasibility and utility of 3D printed models of the canine heart as a supplementary teaching aid in final-year vet students. We hypothesized that using 3D printed cardiac models would improve test scores and feedback when compared with a control group. Students (n = 31) were randomized to use either a video guide to echocardiographic anatomy alongside 3D printed models (3DMs) or video only (VO). Prior to a self-directed learning session, students answered eight extended matching questions as a baseline knowledge assessment. They then undertook the learning session and provided feedback (Likert scores and free text). Students repeated the test within 1 to 3 days. Changes in test scores and feedback were compared between 3DM and VO groups, and between track and non-track rotation students. The 3DM group had increased test scores in the non-track subgroup. Track students' test scores in the VO group increased, but not in the 3DM group. Students in the 3DM group had a higher completion rate, and more left free-text feedback. Feedback from 3DM was almost universally positive, and students believed more strongly that these should be used for future veterinary anatomy teaching. In conclusion, these pilot data suggest that 3D printed canine cardiac models are feasible to produce and represent an inclusive learning opportunity, promoting student engagement.


Asunto(s)
Educación en Veterinaria , Animales , Perros , Humanos , Anatomía Veterinaria , Evaluación Educacional , Aprendizaje , Modelos Anatómicos , Impresión Tridimensional
6.
J Vet Med Educ ; 49(6): 770-777, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34779748

RESUMEN

This article explores the impact of experiential team communication training on student team effectiveness. First-year veterinary students were concurrently enrolled in the Group Communication in Veterinary Medicine course and applied their knowledge to their authentic team experiences in the Veterinary Anatomy and Introduction to Clinical Problem Solving courses. All students completed a modified team effectiveness instrument and a team self-reflection at the end of the semester. Results show that students experienced a high level of team effectiveness. Although students experienced challenges with respect to staying on task and distributing roles and responsibilities, team coordination and communication improved over time, due in part to the team activities associated with the team training intervention. This research provides support for the impact of experiential team training to the development of team process skills and team effectiveness.


Asunto(s)
Conducta Cooperativa , Educación en Veterinaria , Anatomía Veterinaria , Educación en Veterinaria/métodos , Humanos , Estudiantes , Solución de Problemas , Comunicación
7.
J Vet Med Educ ; 49(3): 297-305, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33950803

RESUMEN

The expanding use of technology to support or replace dissection has implications for educators, who must first understand how students mentally manipulate anatomical images. The psychological literature on spatial ability and general intelligence is relevant to these considerations. This article situates current understandings of spatial ability in the context of veterinary anatomy education. As in medical education, veterinary courses are increasingly using physical and computer-based models and computer programs to supplement or even replace cadavers. In this article, we highlight the importance of spatial ability in the learning of anatomy and make methodological recommendations for future studies to ensure a robust evidence base is developed. Recommendations include ensuring that (a) studies aiming to demonstrate changes in spatial ability include anatomically naïve students and also account for previous anatomical knowledge, (b) studies employ a control group in order to account for the practice effect, and (c) the relationship between spatial ability and general intelligence, and thus other cognitive abilities, is acknowledged.


Asunto(s)
Anatomía , Educación de Pregrado en Medicina , Educación en Veterinaria , Navegación Espacial , Estudiantes de Medicina , Anatomía/educación , Anatomía Veterinaria/educación , Animales , Educación en Veterinaria/métodos , Humanos , Aprendizaje , Estudiantes de Medicina/psicología
8.
Adv Exp Med Biol ; 1260: 13-25, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33211305

RESUMEN

"All learning is in the learner, not the teacher." Plato was right. The adage has passed the test of time and is still true in an era where technology accompanies us in not only professional but also recreational life every day, everywhere. On the other hand, the learner has evolved and so have the sources being used to satisfy curiosity and learning. It therefore appears intuitive to embrace these technological advances to bring knowledge to our pupils with the aim to facilitate learning and improve performance. It must be clear that these technologies are not intended to replace but rather consolidate knowledge partly acquired during more conventional teaching of anatomy. Veterinary medicine is no outlier. Educating students to the complexity of anatomy in multiple species requires that three-dimensional concepts be taught and understood accurately if appropriate treatment is to be set in place thereafter. Veterinary anatomy education has up to recently walked diligently in the footsteps of John Hunter's medical teaching using specimens, textbooks, and drawings. The discipline has yet to embrace fully the benefits of advancement being made in technology for the benefit of its learners. Three-dimensional representation of anatomy is undeniably a logical and correct way to teach whether it is through the demonstration of cadaveric specimen or alternate reality using smartphones, tablets, headsets or other digital media. Here we review some key aspects of the evolution of educational technology in veterinary anatomy.


Asunto(s)
Anatomía Veterinaria/educación , Tecnología Educacional , Evaluación Educacional , Humanos , Internet , Aprendizaje
9.
J Med Libr Assoc ; 108(4): 647-648, 2020 Oct 01.
Artículo en Inglés | MEDLINE | ID: mdl-33013225

RESUMEN

Traditionally, there are three primary ways to learn anatomy outside the classroom. Books provide foundational knowledge but are limited in terms of object manipulation for deeper exploration. Three-dimensional (3D) software programs produced by companies including Biosphera, Sciencein3D, and Anatomage allow deeper exploration but are often costly, offered through restrictive licenses, or require expensive hardware. A new approach to teaching anatomy is to utilize virtual reality (VR) environments. The Virginia-Maryland College of Veterinary Medicine and University Libraries have partnered to create open education-licensed VR anatomical programs for students to freely download, access, and use. The first and most developed program is the canine model. After beta testing, this program was integrated into the first-year students' physical examination labs in fall 2019. The VR program enabled students to walk through the VR dog model to build their conceptual knowledge of the location of certain anatomical features and then apply that knowledge to live animals. This article briefly discusses the history, pedagogical goals, system requirements, and future plans of the VR program to further enrich student learning experiences.


Asunto(s)
Anatomía Veterinaria/métodos , Instrucción por Computador/instrumentación , Educación en Veterinaria , Animales , Perros , Humanos , Maryland , Estudiantes , Virginia
10.
J Vet Med Educ ; 47(2): 148-157, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32118510

RESUMEN

The Ohio State University College of Veterinary Medicine (CVM), with a class size of 162, is one of the largest in the nation. In an effort to streamline examination procedures, create a consistent assessment format among courses, replace paper exams, track test questions linked to learning objectives, and reduce exam grading time, our DVM program adopted the use of ExamSoft for core courses beginning in the autumn semester 2014. ExamSoft is an electronic assessment application, which provides a secure testing environment and robust reporting features. CVM uses it for high stakes midterm and finals. Although easily adopted into a didactic course format, its application in laboratory-based examinations proved challenging. Designing, setting up and grading exams for Anatomy and Parasitology courses with a laboratory component have always required substantial time investment, and adding a testing application to the process demanded rethinking and restructuring logistics. After two semesters of process refinement and standardization of a testing device to the iPad, faculty teaching in the Anatomy and Parasitology courses were able to implement ExamSoft in a laboratory setting to realize the same assessment and efficiency gains. Here we describe the benefits of ExamSoft testing in the written and laboratory settings and the lessons learned during the 2-year transition.


Asunto(s)
Anatomía Veterinaria , Educación en Veterinaria , Evaluación Educacional , Parasitología , Anatomía Veterinaria/instrumentación , Anatomía Veterinaria/métodos , Curriculum/normas , Educación en Veterinaria/métodos , Evaluación Educacional/métodos , Parasitología/educación , Parasitología/instrumentación , Enseñanza , Escritura
11.
Vet Radiol Ultrasound ; 59(6): 721-736, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30136364

RESUMEN

High field magnetic resonance imaging (MRI) is increasingly used for horses with suspected stifle disease, however there is limited available information on normal imaging anatomy and potential incidental findings. The aim of this prospective, anatomic study was to develop an optimized high field MRI protocol for evaluation of the equine stifle and provide detailed descriptions of the normal MRI appearance of the stifle soft tissues, using ultrasound and gross pathological examination as comparison tests. Nine cadaver limbs were acquired from clinically normal horses. Stifles were evaluated ultrasonographically and then by an extensive 1.5 T MRI protocol. Subsequently, all stifles were evaluated for gross pathologic change. Findings were compared between gross evaluation and MRI imaging and described. No soft tissue structure abnormalities were identified on any evaluation. Specific descriptive findings of the meniscotibial, meniscofemoral, collateral, patellar and cruciate ligaments, and the menisci were reported. The high field MRI protocol described in this study provided high spatial and contrast resolution of the soft tissue structures, and this in turn allowed visualization of detailed structural characteristics, such as striations and variations in signal intensity. Findings supported the use of high field MRI as a modality for the evaluation of the soft tissues of the equine stifle. As clinical availability of this modality increases in the future, authors anticipate that new stifle diseases will be detected that have not previously been identified with other imaging modalities.


Asunto(s)
Anatomía Veterinaria/métodos , Caballos/anatomía & histología , Ligamentos Articulares/diagnóstico por imagen , Imagen por Resonancia Magnética/veterinaria , Rodilla de Cuadrúpedos/diagnóstico por imagen , Anatomía Veterinaria/estadística & datos numéricos , Animales , Cadáver , Femenino , Imagen por Resonancia Magnética/instrumentación , Masculino , Estudios Prospectivos , Valores de Referencia , Ultrasonografía/veterinaria
12.
J Vet Med Educ ; 45(1): 119-125, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-28581912

RESUMEN

Living anatomy is gaining increasing popularity as an alternative to the use of preserved cadaver specimens in musculoskeletal anatomy teaching. This article describes the development of a garment painted with musculoskeletal structures as an alternative to body painting. Garments offer some advantages over traditional body painting in anatomy teaching. The technique can be used across different disciplines, enhances students' ability to identify anatomic structures in living bodies, and provides insights into the topography of one or more body systems at the same time. The fact that garments are amenable to palpation by large groups of students with no damage to the painting favors repeated use in hands-on wet labs. Garments such as the one described in this article introduce a novel approach to interdisciplinary teaching and learning, which can be combined with traditional anatomy teaching methods. The first garment produced depicts part of the equine musculoskeletal system. Steps in garment construction are highlighted and indications, advantages, and limitations of the method discussed.


Asunto(s)
Anatomía Veterinaria/educación , Vestuario , Educación en Veterinaria , Caballos/anatomía & histología , Animales , Femenino , Humanos , Pinturas
13.
J Vet Med Educ ; 45(1): 131-139, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29466118

RESUMEN

The goal of this study was to determine the effectiveness of an interactive radiology software application that we developed to enhance learning of normal canine radiographic anatomy. All first-year veterinary medical students were eligible to participate in this subject pre-test-post-test experimental design. When presented with the software application, all students had completed two terms of gross anatomy in which the complete anatomy of the dog had been taught using a combination of lectures and laboratory dissections, including radiographic examples. The software application was divided into four body regions: front limb, hind limb, skull/spine, and thorax/abdomen, each with a learning mode and a quiz mode. Quizzes were composed of 15 questions drawn pseudo-randomly without repeat from all structures within a region (median 206 structures). Students were initially given the software application with only the quiz mode activated. After completing four quizzes, one for each body region, students were given access to the software application with both learning mode and quiz mode activated. Students were instructed to spend 30 minutes using the learning mode to study the radiographic anatomy of each region and to retake each quiz. Quiz scores after using the learning mode were significantly higher for each body region (p<.001), with a large effect size for all four regions (Cohen's d=0.83-1.56). These results suggest that this radiographic anatomy software application is an effective tool for students to use to learn normal radiographic anatomy.


Asunto(s)
Anatomía Veterinaria/educación , Competencia Clínica , Perros/anatomía & histología , Programas Informáticos , Animales , Instrucción por Computador , Evaluación Educacional , Humanos , Radiología
14.
J Vet Med Educ ; 45(3): 330-342, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29345550

RESUMEN

Little to no correlation has been identified between previous related undergraduate coursework or outcomes on standardized tests and performance in a veterinary curriculum, including anatomy coursework. Therefore, a relatively simplistic method to predict student performance before entrance would be advantageous to many. The purpose of this study was to evaluate whether there is a correlation between performance in a veterinary anatomy pre-course and subsequent performance within a professional anatomy curriculum. Incoming first-year veterinary students at the Louisiana State University School of Veterinary Medicine were asked to participate in a free weeklong pre-course, before the start of the semester. The pre-course covered the musculoskeletal anatomy of the canine thoracic limb using dissection-based methods. Student performance, as evaluated by test grades in the pre-course, did indeed correlate with test grades in professional veterinary anatomy courses. A significant and positive correlation was identified between pre-course final exam performance and performance on examinations in each of 3 professional anatomy courses. Qualitative analyses of student comments pertaining to their experience within the pre-course indicated differences in the perceived benefits of the pre-course between high-, middle-, and low-performing students. These varied perceptions may provide predictive feedback as well as guidance for supporting lower performing students. Together, these results indicate that performance in a weeklong pre-course covering only a small portion of canine anatomy is a strong predictor of performance within a professional anatomy curriculum. In addition, the pre-course differentially affected student perceptions of their learning experience.


Asunto(s)
Anatomía Veterinaria/educación , Evaluación Educacional , Estudiantes de Medicina , Adulto , Animales , Curriculum , Disección/educación , Educación en Veterinaria , Femenino , Humanos , Masculino , Evaluación de Programas y Proyectos de Salud , Adulto Joven
15.
J Vet Med Educ ; 45(2): 163-176, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29767571

RESUMEN

Using cadaveric material to teach veterinary students poses many challenges. However, little research exists on the contribution of this traditional approach to student learning. This longitudinal study aimed to investigate student perceptions of cadaver-based anatomy classes in a vertically integrated veterinary curriculum at the University of Nottingham's School of Veterinary Medicine and Science. Likert-scale statements and free-text boxes were used in a questionnaire distributed to second-year veterinary students (response rate 59%, 61/103). The same questionnaire was subsequently distributed to the same cohort 2 years later, in the students' fourth year of study (response rate 68%, 67/98). Students agreed that cadaver-based activities aid their learning, and they particularly value opportunities to develop practical skills while learning anatomy. There are few changes in perception as undergraduates progress to clinical years of teaching. Students perceive anatomy to be important, and feel that their learning has prepared them for clinical placements. This study emphasizes the importance of using cadaveric materials effectively in anatomy teaching and, in particular, using clinical skills training to enhance the anatomy curriculum.


Asunto(s)
Anatomía Veterinaria/educación , Actitud del Personal de Salud , Competencia Clínica , Educación en Veterinaria , Estudiantes de Medicina , Humanos , Estudios Longitudinales , Evaluación de Programas y Proyectos de Salud , Encuestas y Cuestionarios
16.
J Vet Med Educ ; 45(1): 126-130, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-28703656

RESUMEN

Obstetrical chain placement requires location of specific landmarks and a certain dexterity that must be practiced. Use of low-fidelity models may not always provide students with a realistic experience. In this study we developed an anatomically correct high-fidelity calf leg model that would serve as a better teaching model for pre-clinical veterinary students than a pre-existing low-fidelity polyvinyl chloride (PVC) model. One hundred and twenty pre-clinical veterinary students were instructed how to use obstetrical chains with a low-fidelity PVC model and the anatomically correct high-fidelity calf leg model. After a 45-minute lab, students were surveyed on their experience with both models. Overall students felt the anatomically correct high-fidelity calf leg model increased accuracy in chain placement and provided more accurate landmarks, a more realistic model, and more real-life scenario training.


Asunto(s)
Anatomía Veterinaria/educación , Bovinos/anatomía & histología , Competencia Clínica , Educación en Veterinaria , Modelos Anatómicos , Animales , Animales Recién Nacidos/anatomía & histología , Humanos , Pierna/anatomía & histología , Entrenamiento Simulado
17.
J Vet Med Educ ; 45(3): 320-329, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29185894

RESUMEN

Diagnostic imaging technology is becoming more advanced and widely available to veterinary patients with the growing popularity of veterinary-specific computed tomography (CT) and magnetic resonance imaging (MRI). Veterinary students must, therefore, be familiar with these technologies and understand the importance of sound anatomic knowledge for interpretation of the resultant images. Anatomy teaching relies heavily on visual perception of structures and their function. In addition, visual spatial ability (VSA) positively correlates with anatomy test scores. We sought to assess the impact of including more diagnostic imaging, particularly CT/MRI, in the teaching of veterinary anatomy on the students' perceived level of usefulness and ease of understanding content. Finally, we investigated survey answers' relationship to the students' inherent baseline VSA, measured by a standard Mental Rotations Test. Students viewed diagnostic imaging as a useful inclusion that provided clear links to clinical relevance, thus improving the students' perceived benefits in its use. Use of CT and MRI images was not viewed as more beneficial, more relevant, or more useful than the use of radiographs. Furthermore, students felt that the usefulness of CT/MRI inclusion was mitigated by the lack of prior formal instruction on the basics of CT/MRI image generation and interpretation. To be of significantly greater use, addition of learning resources labeling relevant anatomy in tomographical images would improve utility of this novel teaching resource. The present study failed to find any correlation between student perceptions of diagnostic imaging in anatomy teaching and their VSA.


Asunto(s)
Anatomía Veterinaria/educación , Imagenología Tridimensional , Imagen por Resonancia Magnética , Percepción Espacial , Estudiantes de Medicina/psicología , Tomografía Computarizada por Rayos X , Percepción Visual , Animales , Curriculum , Educación en Veterinaria , Femenino , Humanos , Masculino , Encuestas y Cuestionarios
18.
J Anat ; 231(2): 309-317, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28542788

RESUMEN

In the field of veterinary anatomy, most of the specimens used in practical sessions are perfused with fixatives. Thus, they can be used for a longer time, reducing the number of animals for educational purposes. Formalin is the most commonly used fixative, consisting of a 37% formaldehyde solution. However, formaldehyde is a powerful irritant of the eyes and airways and is considered carcinogenic, causing nasopharyngeal cancer in exposed workers and professionals. In the present study, we explored an alternative method to avoid the use of formaldehyde in specimens used for gross anatomy practical sessions. We propose an inexpensive, non-toxic fixative that is available worldwide, such as sea salt. This method consists of a continuous perfusion of saturated salt solution for a period of 6-8 h, enabling drainage of the solution to avoid a weight increase of the specimen, and allowing salt to be retained in the tissue. The method is based on recirculation of the saturated salt solution instead of maceration. Perfused specimens retained their natural consistency and joint mobility, with no blood, resembling a piece of meat from the slaughterhouse. They could be used immediately without a maceration period, or stored in the fridge until use and then kept in a bath of saturated salt solution for future conservation. In the case of the former, no refrigeration was needed. The specimens did not have an irritating or offensive smell, and could be used for long sessions (several hours per day) and stored for long periods. However, the blood vessels used for perfusion determine the results: a less invasive approach (through common carotid arteries) gave good preservation of the musculoskeletal system, whereas more invasive access to cannulate the abdominal aorta and vena cava caudalis was required to achieve better preservation of the viscera. In conclusion, we propose that perfusion followed by immersion in a saturated salt solution is a good alternative method for the preservation of specimens used in the practical teaching of gross veterinary anatomy. It is a very simple and inexpensive technique, and is much healthier for users than traditional formalin. Moreover, specimens can be preserved for prolonged periods, and maintain a similar appearance and consistency to fresh material.


Asunto(s)
Anatomía Veterinaria/métodos , Embalsamiento/métodos , Fijadores , Cloruro de Sodio , Animales , Formaldehído
19.
J Vet Med Educ ; 44(4): 612-619, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28534721

RESUMEN

Physical specimens are essential to the teaching of veterinary anatomy. While fresh and fixed cadavers have long been the medium of choice, plastinated specimens have gained widespread acceptance as adjuncts to dissection materials. Even though the plastination process increases the durability of specimens, these are still derived from animal tissues and require periodic replacement if used by students on a regular basis. This study investigated the use of three-dimensional additively manufactured (3D AM) models (colloquially referred to as 3D-printed models) of the canine brain as a replacement for plastinated or formalin-fixed brains. The models investigated were built based on a micro-MRI of a single canine brain and have numerous practical advantages, such as durability, lower cost over time, and reduction of animal use. The effectiveness of the models was assessed by comparing performance among students who were instructed using either plastinated brains or 3D AM models. This study used propensity score matching to generate similar pairs of students. Pairings were based on gender and initial anatomy performance across two consecutive classes of first-year veterinary students. Students' performance on a practical neuroanatomy exam was compared, and no significant differences were found in scores based on the type of material (3D AM models or plastinated specimens) used for instruction. Students in both groups were equally able to identify neuroanatomical structures on cadaveric material, as well as respond to questions involving application of neuroanatomy knowledge. Therefore, we postulate that 3D AM canine brain models are an acceptable alternative to plastinated specimens in teaching veterinary neuroanatomy.


Asunto(s)
Anatomía Veterinaria/educación , Encéfalo/anatomía & histología , Competencia Clínica , Perros/anatomía & histología , Animales , Educación en Veterinaria , Adhesión en Plástico , Impresión Tridimensional , Evaluación de Programas y Proyectos de Salud , Encuestas y Cuestionarios
20.
J Vet Med Educ ; 44(4): 620-631, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28581914

RESUMEN

The goal of the study was to evaluate alternative student-centered approaches that could replace autopsy sessions and live demonstration and to explore refinements in assessment procedures for standardized cardiac dissection. Simulators and videos were identified as feasible, economical, student-centered teaching methods for technical skills training in medical contexts, and a direct comparison was undertaken. A low-fidelity anatomically correct simulator approximately the size of a horse's heart with embedded dissection pathways was constructed and used with a series of laminated photographs of standardized cardiac dissection. A video of a standardized cardiac dissection of a normal horse's heart was recorded and presented with audio commentary. Students were allowed to nominate a preference for learning method, and students who indicated no preference were randomly allocated to keep group numbers even. Objective performance data from an objective structure assessment criterion and student perception data on confidence and competency from surveys showed both innovations were similarly effective. Evaluator reflections as well as usage logs to track patterns of student use were both recorded. A strong selection preference was identified for kinesthetic learners choosing the simulator and visual learners choosing the video. Students in the video cohort were better at articulating the reasons for dissection procedures and sequence due to the audio commentary, and student satisfaction was higher with the video. The major conclusion of this study was that both methods are effective tools for technical skills training, but consideration should be given to the preferred learning style of adult learners to maximize educational outcomes.


Asunto(s)
Anatomía Veterinaria/educación , Corazón/anatomía & histología , Caballos/anatomía & histología , Animales , Estudios de Cohortes , Educación en Veterinaria , Humanos , Evaluación de Programas y Proyectos de Salud , Entrenamiento Simulado , Encuestas y Cuestionarios , Grabación en Video
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