Evaluating the validity evidence of an OSCE: results from a new medical school

Abstract Background To prevent the problems of traditional clinical evaluation, the “Objective Structured Clinical Examination (OSCE)” was presented by Harden as a more valid and reliable assessment instrument. However, an essential condition to guarantee a high-quality and effective OSCE is the assurance of evidence to support the validity of its scores. This study examines the psychometric properties of OSCE scores, with an emphasis on consequential and internal structure validity evidence. Methods Fifty-three first year medical students took part in a summative OSCE at the Lebanese American University-School of Medicine. Evidence to support consequential validity was gathered by using criterion-based standard setting methods. Internal structure validity evidence was gathered by examining various psychometric measures both at the station level and across the complete OSCE. Results Compared to our actual method of computing results, the introduction of standard setting resulted in lower students’ average grades and a higher cut score. Across stations, Cronbach’s alpha was moderately low. Conclusion Gathering consequential and internal structure validity evidence by multiple metrics provides support for or against the quality of an OSCE. It is critical that this analysis be performed routinely on local iterations of given tests, and the results used to enhance the quality of assessment

<i>CHAMP1</i>-Related Disorder: Sharing 20 Years of thorough Clinical Follow-Up and Review of the Literature

Intellectual disability (ID) is a prevalent neurodevelopmental disorder characterized by limitations in intellectual functioning and adaptive behavior. While the causes of ID are still largely unknown, it is believed to result from a combination of environmental exposures and genetic abnormalities. Recent advancements in genomic studies and clinical genetic testing have identified numerous genes associated with neurodevelopmental disorders (NDDs), including ID. One such gene is CHAMP1, which plays a role in chromosome alignment and has been linked to a specific type of NDD called CHAMP1 disease. This report presents the case of a 21-year-old Lebanese female patient with a de novo mutation in CHAMP1. In addition to ID and NDD, the patient exhibited various clinical features such as impaired language, dysmorphic features, macrocephaly, thoracic hyperkyphosis, decreased pain sensation, and metabolic syndrome. These findings expand the understanding of the clinical spectrum associated with CHAMP1 mutations and highlight the importance of comprehensive follow-up for improved prognosis. Overall, this case contributes to the knowledge of CHAMP1-related NDDs by describing additional clinical features associated with a CHAMP1 mutation. The findings underscore the need for accurate diagnosis, thorough follow-up, and personalized care for individuals with CHAMP1 mutations to optimize their prognosis

Reconstruction et réconciliation au Liban

Dans la décennie de sortie de guerre, le thème de la réconciliation des Libanais structure les discours politiques et sert à justifier de grandes actions d'aménagement, ainsi que des stratégies individuelles ou collectives. Plus encore que l'arrêt des combats, la promesse d'une nouvelle ère de coexistence et de prospérité légitime les projets ambitieux de la reconstruction. En retour, la construction d'équipements et d'infrastructures, la reprise des dynamiques de développement, ainsi que la réhabilitation du cadre de vie sont censés favoriser la réconciliation. Cet ouvrage du CERMOC est le fruit des recherches et des réflexions d'une équipe d'anthropologues, de géographes, de sociologues, de politologues et d'urbanistes, animée par Eric Huybrechts, responsable de l'Observatoire de recherches sur Beyrouth et la reconstruction, et Chawqi Douayhi, professeur à l'Université Libanaise. Les auteurs ont repéré et étudié divers lieux représentatifs de la reconstruction et de la réconciliation, choisis soit pour leur originalité, soit à partir d'angles particuliers : la reconstruction des villages autour de Saïda, le nouvel équilibre politique et social entre Tripoli et Zgorta à travers l'étude de l'espace de l'Université Libanaise à Qobbé, la mixité sociale sur la Corniche et dans les centres commerciaux de Beyrouth, l'oubli de l'ancienne ligne des combats dans la reconstruction de Beyrouth et ses banlieues, etc. Plusieurs lectures peuvent être faites de ces recompositions : une normalisation des relations sociales, la reprise de dynamiques métropolitaines et globalisante, une complexification de la société, ou même la poursuite de la lutte politique par d'autres moyens que la guerre. La diversité des interprétations confirme la vocation du Liban comme « laboratoire de la Méditerranée »

Nondepolarizing muscle relaxant improves direct laryngoscopy view with no effect on face mask ventilation

Background: Difficult or impossible face mask ventilation complicated with difficult tracheal intubation during anesthesia induction occurs in 0.4% of adult anesthesia cases, possibly leading to life-threatening complications. Because of such catastrophes, muscle relaxants have been recommended to be administered after confirming adequate face mask ventilation without a solid scientific validation of this principal. Methods: In this observational study, the ease of ventilation and the scores of direct laryngoscopy views before and after administration of cisatracurium were assessed in ninety young healthy adults, without anesthetic risks and without foreseen difficult intubation and who were scheduled for general elective surgeries. Results: Before muscle relaxation, 43 patients (48%) were Cormack Grade I, while the remaining 47 patients (52%) were either Cormack Grade II (28 patients, 31%) or Cormack Grade II (19 patients, 21%). Following muscle relaxation with cisatracurium, the number of patients with Cormack Grade I significantly increased from 43 patients (48%) to 65 patients (72%) (p = 0.0013). Only 1 patient out of 19 patients (5%) improved his Cormack grade from Grade III to Grade I while 16 out 19 patients (84%) improved their Cormack grade from Grade III to Grade II after the use of cisatracurium. The quality of face mask ventilation did not differ with and without muscle relaxants in all patients. Conclusion: The use of cisatracurium in healthy young adults undergoing general elective surgeries with no anticipated difficult endotracheal intubation had no effect on the quality of face mask ventilation despite resulting in a quantifiable improvement in the laryngeal view. Resumo: Justificativa: A ventilação difícil ou impossível via máscara facial complicada pela intubação traqueal difícil durante a indução da anestesia ocorre em 0,4% dos casos de anestesia em adultos, possivelmente levando a complicações fatais. Devido a tais catástrofes, recomendou-se que a administração de relaxantes musculares seja feita após a confirmação de ventilação adequada via máscara facial, sem uma validação científica sólida dessa conduta. Métodos: Neste estudo observacional, a facilidade de ventilação e os escores de visibilidade em laringoscopia direta antes e após a administração de cisatracúrio foram avaliados em 90 adultos jovens e saudáveis, sem riscos anestésicos e sem intubação difícil prevista, agendados para cirurgias eletivas gerais. Resultados: Antes do relaxamento muscular, 43 pacientes (48%) eram Cormack Grau I, enquanto os 47 pacientes (52%) restantes eram ou Cormack Grau II (28 pacientes, 31%) ou Cormack Grade III (19 pacientes, 21%). Após o relaxamento muscular com cisatracúrio, o número de pacientes com Cormack Grau I aumentou significativamente de 43 (48%) para 65 pacientes (72%) (p = 0,0013). Apenas um paciente (5%) dos 19 melhorou sua classificação de Cormack do Grau III para o Grau I, enquanto 16 dos 19 pacientes (84%) melhoraram suas classificações de Cormack do Grau III para o grau II após o uso de cisatracúrio. A qualidade da ventilação via máscara facial não diferiu com ou sem relaxantes musculares em todos os pacientes. Conclusão: O uso de cisatracúrio em adultos jovens saudáveis submetidos a cirurgias eletivas gerais sem intubação traqueal difícil prevista não teve efeito sobre a qualidade da ventilação via máscara facial, mesmo resultando em melhora quantificável da visibilidade da laringe. Keywords: Nondepolarizing muscle relaxants, Laryngoscopy view, Face mask ventilation, Palavras-chave: Relaxantes musculares não despolarizantes, Visibilidade em laringoscopia, Ventilação via máscara facia

Nondepolarizing muscle relaxant improves direct laryngoscopy view with no effect on face mask ventilation

Abstract Background: Difficult or impossible face mask ventilation complicated with difficult tracheal intubation during anesthesia induction occurs in 0.4% of adult anesthesia cases, possibly leading to life-threatening complications. Because of such catastrophes, muscle relaxants have been recommended to be administered after confirming adequate face mask ventilation without a solid scientific validation of this principal. Methods: In this observational study, the ease of ventilation and the scores of direct laryngoscopy views before and after administration of cisatracurium were assessed in ninety young healthy adults, without anesthetic risks and without foreseen difficult intubation and who were scheduled for general elective surgeries. Results: Before muscle relaxation, 43 patients (48%) were Cormack Grade I, while the remaining 47 patients (52%) were either Cormack Grade II (28 patients, 31%) or Cormack Grade II (19 patients, 21%). Following muscle relaxation with cisatracurium, the number of patients with Cormack Grade I significantly increased from 43 patients (48%) to 65 patients (72%) (p = 0.0013). Only 1 patient out of 19 patients (5%) improved his Cormack grade from Grade III to Grade I while 16 out 19 patients (84%) improved their Cormack grade from Grade III to Grade II after the use of cisatracurium. The quality of face mask ventilation did not differ with and without muscle relaxants in all patients. Conclusion: The use of cisatracurium in healthy young adults undergoing general elective surgeries with no anticipated difficult endotracheal intubation had no effect on the quality of face mask ventilation despite resulting in a quantifiable improvement in the laryngeal view