scholarly journals A novel three-in-one silicone model for basic microsurgery training

2020 ◽  
Vol 43 (5) ◽  
pp. 621-626
Author(s):  
Osaid Alser ◽  
Gehad Youssef ◽  
Simon Myers ◽  
Ali M. Ghanem
Keyword(s):  
Animal Models ◽  
Surgical Training ◽  
Face Validity ◽  
Level Of Evidence ◽  
The Face ◽  
Advanced Stages ◽  
Spss Software ◽  
Silicone Model ◽  
Synthetic Models ◽  
Suturing Skills

Abstract Background Microsurgery simulation is an important aspect of surgical training. Animal models have been widely used in simulation training, but they have some limitations including ethical restrictions, cost and availability. This has led to the use of synthetic models that can reduce reliance on animals in line with the 3R (refinement, reduction and replacement) principles. The aim of this paper was to evaluate the face validity of Surgitate™ three-in-one (artery, vein and nerve) silicone model. Methods Fourteen candidates performed one end-to-end anastomosis on artery, vein and nerve. The face validity of the vessel was assessed via questionnaires detailing their previous microsurgical experience and their feedback of using this model using the Likert scale. Data management and analysis were performed using IBM SPSS software (25.0). Results Participants tended to value this model in the earlier stages of microsurgical training particularly in the acquisition of basic microsurgical skills. It could be particularly useful in enhancing suturing skills as a replacement or reduction in the use of chicken models. The model has some drawbacks preluding its utilization into more advanced stages of surgical training. Further studies are needed to validate the model using more objective measures. Conclusion We present a novel synthetic model that can be potentially introduced to early stages of microsurgery training. The model would be ideal to meet the 3R principles of the use of animal models and as an alternative to the commonly used synthetic models. Level of evidence: Not ratable.

scholarly journals Identification of Barriers to Entrepreneurship of Female Household Heads Covered by Tehran Welfare Organization

2014 ◽  
Vol 43 ◽  
pp. 60-72
Author(s):  
Reza Shahmahmoudi ◽  
Parvaneh Danesh
Keyword(s):  
Gender Discrimination ◽  
Face Validity ◽  
Vulnerable Groups ◽  
Financial Independence ◽  
Statistical Population ◽  
Governmental Organizations ◽  
National Media ◽  
The Face ◽  
Spss Software ◽  
Household Heads

One of the important tasks of social helpers is empowerment of vulnerable groups. One of these vulnerable groups is female household heads. One of the practices that can help empowering of them is to encourage female household heads to financial independence. Entrepreneurship is something that can lead to financial independence of female household heads. Moreover, entrepreneurship can lead to better mental and social health of this vulnerable group. The first step in empowering female household heads through entrepreneurship is to identify their obstacles and entrepreneurship problems. Because by identification of these barriers it can be done more appropriate measures in order to empower them. So, the aim of the present study is to identify entrepreneurship barriers of female household heads covered by Welfare Organization in Tehran. The method of the current study is survey. The statistical population of this research is all female household heads covered by Welfare Organization in Tehran that 350 of them were selected randomly.In order to collect data in this research, researcher-built questionnaire was used. In this research, the face validity and content aspect of the questionnaire were confirmed and reliability coefficient was obtained 0.81 using Cronbach’s alpha indicating desirable reliability of research questionnaire. The questionnaires were completed through self-creativity and then data were analyzed using SPSS software. Among problems that women encountered with them, the first ten ones are respectively the loss of fund to begin a job, existence of strictly official rules, gender discrimination and ignoring the ability of women by the society and responsible organizations, ignoring women in management affairs, over-concern about paying back the loans, emphasis on having personal fund instead of borrowing it from others, loss of pawn in order to get a loan, lack of proper support by government and governmental organizations, few facilities to begin a job by sponsor organizations, and unsuitable behavior of some organizations due to promotion of male-dominating in the society that statistically meaningful difference in prioritizing of these barriers was seen (p < 0.05). Considering the findings of the current research, the programs in order to support female household heads economically and special facilities for them can provide their entrepreneurship basis. Also, gender discriminations against women especially female household heads can be decreased through acculturating using media and national media. The findings of the current research can be useful for social helpers, sponsor organizations and policymakers in direction of empowering the female household heads.

Validation of Animal Models for Simulation Training in Pediatric Laryngotracheal Reconstruction

2019 ◽  
Vol 129 (1) ◽  
pp. 46-54 ◽  
Author(s):  
Saleh Okhovat ◽  
Thomas D. Milner ◽  
William A. Clement ◽  
David M. Wynne ◽  
Thushitha Kunanandam
Keyword(s):  
Animal Models ◽  
Simulation Training ◽  
Ex Vivo ◽  
Skills Training ◽  
Level Of Evidence ◽  
Laryngotracheal Reconstruction ◽  
Surgical Skills Training ◽  
The Face ◽  
Practical Model ◽  
Comparative Validation

Objectives: To assess and compare the face (FV) and content validity (CV) of three ex vivo animal models for simulation training in pediatric laryngotracheal reconstruction (LTR). Methods: Feasibility of performing LTR was assessed on the head and neck of three different animals (lamb/suckling-pig/rabbit) and laryngeal dimensions and qualitative observations were recorded. A 19-item five-point Likert scale questionnaire was completed for each model to assess FV and CV. Data was prospectively collected and analyzed using descriptive and nonparametric statistics. Results: All three models were suitable for LTR simulation with laryngeal dimensions corresponding to 0-2 years (rabbit), 5-10 (pig) and >10 years (lamb model). Five trainees and five expert pediatric otolaryngologists performed LTR on each model. The overall median FV score was 5 for the lamb model (IQR 4-5), 3 for the rabbit (IQR 2-3), and 4 for the pig (IQR 4-4). The overall median CV score was 5 for the lamb (IQR 5-5), 2 for the rabbit (IQR 2-3), and 4 for the pig model (IQR 4-4). Comparison of the models demonstrated the lamb to be favored as the most realistic and practical model for simulation training in pediatric LTR, with both the lamb and the porcine model attaining validation thresholds. Conclusion: Our study is the first comparative validation assessment of animal models for use in pediatric LTR simulation and it supports the use of ex vivo lamb and porcine models for use in LTR surgical skills training. The lamb model was the favored simulation model while the rabbit was considered inferior for simulation training in pediatric LTR. Level of Evidence: 3b

Evaluation of the Modified Naranjo Criteria for Assessing Causal Attribution of Clinical Outcome to Homeopathic Intervention as Presented in Case Reports

Homeopathy ◽  
2020 ◽  
Vol 109 (04) ◽  
pp. 191-197
Author(s):  
Chetna Deep Lamba ◽  
Vishwa Kumar Gupta ◽  
Robbert van Haselen ◽  
Lex Rutten ◽  
Nidhi Mahajan ◽  
...  
Keyword(s):  
Clinical Outcome ◽  
Causal Relationship ◽  
Clinical Case ◽  
Assessment Tool ◽  
Causal Attribution ◽  
Case Reports ◽  
Face Validity ◽  
Rater Agreement ◽  
The Face ◽  
Selection Of

Abstract Objectives The objective of this study was to establish the reliability and content validity of the “Modified Naranjo Criteria for Homeopathy—Causal Attribution Inventory” as a tool for attributing a causal relationship between the homeopathic intervention and outcome in clinical case reports. Methods Purposive sampling was adopted for the selection of information-rich case reports using pre-defined criteria. Eligible case reports had to fulfil a minimum of nine items of the CARE Clinical Case Reporting Guideline checklist and a minimum of three of the homeopathic HOM-CASE CARE extension items. The Modified Naranjo Criteria for Homeopathy Inventory consists of 10 domains. Inter-rater agreement in the scoring of these domains was determined by calculating the percentage agreement and kappa (κ) values. A κ greater than 0.4, indicating fair agreement between raters, in conjunction with the absence of concerns regarding the face validity, was taken to indicate the validity of a given domain. Each domain was assessed by four raters for the selected case reports. Results Sixty case reports met the inclusion criteria. Inter-rater agreement/concordance per domain was “perfect” for domains 1 (100%, κ = 1.00) and 2 (100%, κ = 1.00); “almost perfect” for domain 8 (97.5%, κ = 0.86); “substantial” for domains 3 (96.7%, κ = 0.80) and 5 (91.1%, κ = 0.70); “moderate” for domains 4 (83.3%, κ = 0.60), 7 (67.8%, κ = 0.46) and 9 (99.2%, κ = 0.50); and “fair” for domain 10 (56.1%, κ = 0.38). For domains 6A (46.7%, κ = 0.03) and 6B (50.3%, κ = 0.18), there was “slight agreement” only. Thus, the validity of the Modified Naranjo Criteria for Homeopathy tool was established for each of its domains, except for the two that pertain to direction of cure (domains 6A and 6B). Conclusion The Modified Naranjo Criteria for Homeopathy—Causal Attribution Inventory was identified as a valid tool for assessing the likelihood of a causal relationship between a homeopathic intervention and clinical outcome. Improved wordings for several criteria have been proposed for the assessment tool, under the new acronym “MONARCH”. Further assessment of two MONARCH domains is required.

An investigation of the face validity of a food intake questionnaire: lessons for dietary advice

1999 ◽  
Vol 12 (4) ◽  
pp. 307-316 ◽  
Author(s):  
B. Johnson ◽  
A. F. Hackett ◽  
A. Bibby ◽  
J. Cross
Keyword(s):  
Food Intake ◽  
Face Validity ◽  
Dietary Advice ◽  
The Face

scholarly journals Construct, Face, and Content Validation on Voxel-Man® Simulator for Otologic Surgical Training

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
M. Varoquier ◽  
C. P. Hoffmann ◽  
C. Perrenot ◽  
N. Tran ◽  
C. Parietti-Winkler
Keyword(s):  
Virtual Reality ◽  
Construct Validity ◽  
Surgical Training ◽  
Teaching Methods ◽  
Traditional Teaching ◽  
Virtual Reality Simulator ◽  
Expert Group ◽  
Traditional Teaching Methods ◽  
The Face ◽  
Nose And Throat

Objective. To assess the face, content, and construct validity of the Voxel-Man TempoSurg Virtual Reality simulator. Participants and Methods. 74 ear, nose, and throat (ENT) surgeons participated. They were assigned to one of two groups according to their level of expertise: the expert group (n=16) and the novice group (n=58). The participants performed four temporal bone dissection tasks on the simulator. Performances were assessed by a global score and then compared to assess the construct validity of the simulator. Finally, the expert group assessed the face and content validity by means of a five-point Likert-type scale. Results. experienced surgeons performed better (p<.01) and faster (p<.001) than the novices. However, the groups did not differ in terms of bone volume removed (p=.11) or number of injuries (p=.37). 93.7% of experienced surgeons stated they would recommend this simulator for anatomical learning. Most (87.5%) also thought that it could be integrated into surgical training. Conclusion. The Voxel-Man TempoSurg Virtual Reality simulator constitutes an interesting complementary tool to traditional teaching methods for training in otologic surgery.

scholarly journals Pathogenesis and Management of Alcoholic Liver Disease

2016 ◽  
Vol 34 (4) ◽  
pp. 347-355 ◽  
Author(s):  
M. Omar Farooq ◽  
Ramon Bataller
Keyword(s):  
Liver Disease ◽  
Animal Models ◽  
Alcoholic Liver Disease ◽  
Disease Stage ◽  
Human Samples ◽  
Pathogenic Factors ◽  
Alcohol Abstinence ◽  
Current Therapies ◽  
Advanced Stages ◽  
Translational Studies

Alcoholic liver disease (ALD) is a leading cause of liver-related morbidity and mortality. ALD encompasses a spectrum of disorders ranging from asymptomatic steatosis, alcoholic steatohepatitis, fibrosis, cirrhosis and its related complications. Moreover, patients can develop an acute-on-chronic form of liver failure called alcoholic hepatitis (AH). Most patients are diagnosed at advanced stages of the disease with higher rates of complications and mortality. The mainstream of therapy of ALD patients, regardless of the disease stage, is prolonged alcohol abstinence. The current therapeutic regimens for AH (i.e. prednisolone) have limited efficacy and targeted therapies are urgently needed. The development of such therapies requires translational studies in human samples and suitable animal models that reproduce clinical and histological features of AH. In recent years, new animal models that simulate some of the features of human AH have been developed, and translational studies using human samples have identified potential pathogenic factors and histological parameters that predict survival. In this review, we discuss the pathogenesis and management of ALD, focusing on AH, its current therapies and potential treatment targets.

Pictorial Scale of Physical Self-Concept for Younger Children (P-PSC-C): A Feasibility Study

2018 ◽  
Vol 6 (s2) ◽  
pp. S391-S402 ◽  
Author(s):  
Maike Tietjens ◽  
Dennis Dreiskaemper ◽  
Till Utesch ◽  
Nadja Schott ◽  
Lisa M. Barnett ◽  
...  
Keyword(s):  
Physical Fitness ◽  
Motor Development ◽  
Kindergarten Children ◽  
Face Validity ◽  
Self Concept ◽  
Self Perception ◽  
Gross Motor Development ◽  
The Face ◽  
Age Appropriate ◽  
The One

Children’s self-perception of motor skills and physical fitness is said to be an important mediator between skills and physical fitness on the one hand and physical activity on the other hand. An age-appropriate self-perception scale is needed to understand the development and the differentiation of the physical self-concept of children and its components. Therefore, the objectives of this study were (1) to develop a pictorial scale of physical fitness for pre-school children (3–6 years old), and (2) to describe the face validity and feasibility of the scale. The study sample included 27 kindergarten children. In order to determine the psychometric properties, validity was assessed by administrating the Pictorial Scale for Physical Self-Concept in Kindergarten Children (P-PSC-C) compared with children’s fundamental movement skill competency (Test of Gross Motor Development [TGMD]-3; six locomotor and seven object-control skills), height, weight, and demographics. The face validity was favorable. Expectable negatively skewed response distributions were found in all items. Medium correlations with related constructs and with sport enjoyment were found. The results indicate that the new scale is usable for kindergarten children. Future validation studies are needed so that the new scale can contribute to the research about physical self-concept development in kindergarten children.

scholarly journals Spanish Version of the System Usability Scale for the Assessment of Electronic Tools: Development and Validation

10.2196/21161 ◽  
2020 ◽  
Vol 7 (4) ◽  
pp. e21161
Author(s):  
Magdalena Del Rocio Sevilla-Gonzalez ◽  
Lizbeth Moreno Loaeza ◽  
Laura Sofia Lazaro-Carrera ◽  
Brigette Bourguet Ramirez ◽  
Anabel Vázquez Rodríguez ◽  
...  
Keyword(s):  
Mobile App ◽  
Spanish Version ◽  
Face Validity ◽  
Electronic Systems ◽  
Validity Index ◽  
Clinical Counseling ◽  
System Usability Scale ◽  
System Usability ◽  
The Face ◽  
Development And Validation

Background The System Usability Scale (SUS) is a common metric used to assess the usability of a system, and it was initially developed in English. The implementation of electronic systems for clinical counseling (eHealth and mobile health) is increasing worldwide. Therefore, tools are needed to evaluate these applications in the languages and regional contexts in which the electronic tools are developed. Objective This study aims to translate, culturally adapt, and validate the original English version of the SUS into a Spanish version. Methods The translation process included forward and backward translation. Forward translations were made by 2 native Spanish speakers who spoke English as their second language, and a backward translation was made by a native English speaker. The Spanish SUS questionnaire was validated by 10 experts in mobile app development. The face validity of the questionnaire was tested with 10 mobile phone users, and the reliability testing was conducted among 88 electronic application users. Results The content validity index of the new Spanish SUS was good, as indicated by a rating of 0.92 for the relevance of the items. The questionnaire was easy to understand, based on a face validity index of 0.94. The Cronbach α was .812 (95% CI 0.748-0.866; P<.001). Conclusions The new Spanish SUS questionnaire is a valid and reliable tool to assess the usability of electronic tools among Spanish-speaking users.

scholarly journals Animal models of addiction

2017 ◽  
Vol 19 (3) ◽  
pp. 247-258 ◽  
Keyword(s):  
Animal Models ◽  
Predictive Power ◽  
Target Identification ◽  
Clinical Situation ◽  
Drug Intake ◽  
Face Validity ◽  
Psychiatric Research ◽  
Diagnostic And Statistical Manual ◽  
Laboratory Rodents ◽  
Preclinical Animal Models

In recent years, animal models in psychiatric research have been criticized for their limited translational value to the clinical situation. Failures in clinical trials have thus often been attributed to the lack of predictive power of preclinical animal models. Here, I argue that animal models of voluntary drug intake—under nonoperant and operant conditions—and addiction models based on the Diagnostic and Statistical Manual of Mental Disorders are crucial and informative tools for the identification of pathological mechanisms, target identification, and drug development. These models provide excellent face validity, and it is assumed that the neurochemical and neuroanatomical substrates involved in drug-intake behavior are similar in laboratory rodents and humans. Consequently, animal models of drug consumption and addiction provide predictive validity. This predictive power is best illustrated in alcohol research, in which three approved medications—acamprosate, naltrexone, and nalmefene—were developed by means of animal models and then successfully translated into the clinical situation.

Development and Validation of a Modified Version of the Edmonton Symptom Assessment Scale in a Flemish Palliative Care Population

2011 ◽  
Vol 28 (7) ◽  
pp. 475-482 ◽  
Author(s):  
Patricia Claessens ◽  
Johan Menten ◽  
Paul Schotsmans ◽  
Bert Broeckaert
Keyword(s):  
Palliative Care ◽  
Symptom Assessment ◽  
Assessment Scale ◽  
Face Validity ◽  
Patients With Cancer ◽  
Edmonton Symptom Assessment Scale ◽  
The Face ◽  
Palliative Care Units ◽  
Symptom Assessment Scale ◽  
Development And Validation

Palliative cancer patients are faced with multiple symptoms that threaten their quality of life. To manage these symptoms, a reliable and valid way of registration is crucial. In this study, the Edmonton Symptom Assessment Scale (ESAS) has been translated, modified, and tested on content, face, criterion, construct validity, and internal consistency for patients admitted to Flemish palliative care units. These aspects are tested in a descriptive, comparative, longitudinal study based on 3 convenience samples. The first consisted of 8 palliative care experts. The second sample checked the face validity and consisted of 4 patients, 5 family members, and 5 nurses. The last sample involved 23 patients admitted to 3 Flemish palliative care units. Heedful of the “new-wave” vision on validity, the translated and altered ESAS seemed a suitable instrument for the symptom assessment of patients with cancer admitted to a palliative care unit.

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