Assessing the interplay of presentation and competency in online video examinations: a focus on health system science education.

BACKGROUND: The integration of Health System Science (HSS) in medical education emphasizes mastery of competencies beyond mere knowledge acquisition. With the shift to online platforms during the COVID-19 pandemic, there is an increased emphasis on Technology Enhanced Assessment (TEA) methods, such as video assessments, to evaluate these competencies. This study investigates the efficacy of online video assessments in evaluating medical students' competency in HSS. METHODS: A comprehensive assessment was conducted on first-year medical students (n = 10) enrolled in a newly developed curriculum integrating Health System Science (HSS) into the Bachelor of Medicine program in 2021. Students undertook three exams focusing on HSS competency. Their video responses were evaluated by a panel of seven expert assessors using a detailed rubric. Spearman rank correlation and the Interclass Correlation Coefficient (ICC) were utilized to determine correlations and reliability among assessor scores, while a mixed-effects model was employed to assess the relationship between foundational HSS competencies (C) and presentation skills (P). RESULTS: Positive correlations were observed in inter-rater reliability, with ICC values suggesting a range of reliability from poor to moderate. A positive correlation between C and P scores was identified in the mixed-effects model. The study also highlighted variations in reliability and correlation, which might be attributed to differences in content, grading criteria, and the nature of individual exams. CONCLUSION: Our findings indicate that effective presentation enhances the perceived competency of medical students, emphasizing the need for standardized assessment criteria and consistent assessor training in online environments. This study highlights the critical roles of comprehensive competency assessments and refined presentation skills in online medical education, ensuring accurate and reliable evaluations.

Predictors of seizure control in patients with cerebral arteriovenous malformation.

PURPOSE: We aimed to define the predictors of a 2-year seizure-free outcome among patients with cerebral arteriovenous malformation (AVM). METHODS: A retrospective cohort study recruited patients diagnosed with AVM admitted in the hospital between 2002 and 2020. The demographic data, clinical presentations, seizure semiology, neuro-imaging findings, modality of treatment, and clinical outcomes were compared between the 2-year seizure-free and non-2-year seizure-free groups. A logistic regression model was applied to determine the significant predictors of a 2-year seizure-free outcome. RESULTS: Of 372 radiologically confirmed patients with cerebral AVM, 105 (28.23%) experienced seizure and a 2-year seizure-free outcome was achieved in 76.19%. Most seizures presented as the initial symptom. Generalized onset seizure was the most common seizure semiology. A nidus diameter < 3 cm (adjusted odds ratio [aOR] 3.102; 95% CI 1.129-9.683; p = 0.046) was the independent predictor of a 2-year seizure-free period, whereas underlying epilepsy (aOR 0.141; 95% CI 0.010-0.688; p = 0.015) was an independent predictor against a 2-year seizure-free outcome. CONCLUSION: A nidus diameter < 3 cm was the independent predictor of a 2-year seizure-free outcome, whereas underlying epilepsy was the factor against a 2-year seizure-free outcome.

Development and internal validation of a nomogram to predict massive blood transfusions in neurosurgical operations.

Objectives: A massive blood transfusion (MBT) is an unexpected event that may impact mortality. Neurosurgical operations are a major operation involving the vital structures and risk to bleeding. The aims of the present research were (1) to develop a nomogram to predict MBT and (2) to estimate the association between MBT and mortality in neurosurgical operations. Material and Method: We conducted a retrospective cohort study including 3660 patients who had undergone neurosurgical operations. Univariate and multivariate logistic regression analyses were used to test the association between clinical factors, pre-operative hematological laboratories, and MBT. A nomogram was developed based on the independent predictors. Results: The predictive model comprised five predictors as follows: Age group, traumatic brain injury, craniectomy operation, pre-operative hematocrit, and pre-operative international normalized ratio and the good calibration were observed in the predictive model. The concordance statistic index was 0.703. Therefore, the optimism-corrected c-index values of cross-validation and bootstrapping were 0.703 and 0.703, respectively. Conclusion: MBT is an unexpectedly fatal event that should be considered for appropriate preparation blood components. Further, this nomogram can be implemented for allocation in limited-resource situations in the future.

Surgical outcomes of patients after treatment of ruptured anterior communicating artery aneurysms: "real-world" evidence from southern Thailand.

BACKGROUND: Anterior communicating artery (AComA) aneurysm rupture is the most common cause of subarachnoid hemorrhage worldwide. In this study, we aimed to determine the factors associated with a poor clinical outcome in patients with ruptured AComA aneurysms undergoing microsurgical clipping. METHODS: We retrospectively reviewed the clinical and radiologic features as well as clinical outcomes of 150 consecutive patients with ruptured AComA aneurysm who underwent surgical clipping during the 11-year study period. Logistic regression analysis was performed to identify independent factors associated with unfavorable clinical outcomes (defined as a modified Rankin scale score of 3-6). RESULTS: The study included 83 male and 67 female patients, with a mean age of 51.3 ± 11.5 years. At admission, most of the patients had good neurological status, including 97 (64.7%) patients with a Hunt and Hess grade of 1 or 2 and 109 (72.6%) patients with a World Federation of Neurosurgical Societies grade of 1 or 2. Unfavorable outcomes at 6 months were observed in 23 (22.0%) patients, and the 6-month mortality rate was 8.0%. Multivariate analysis showed that preoperative intraventricular hemorrhage (odds ratio [OR], 19.66; 95% confidence interval [CI], 5.10-75.80; P < 0.001), A1 hypoplasia (OR, 8.90; 95% CI, 2.82-28.04; P < 0.001), and postoperative cerebral infarction (OR, 3.21; 95% CI, 1.16-8.88; P = 0.025) were strong independent risk factors for unfavorable outcomes. CONCLUSIONS: Proper management of preoperative intraventricular hemorrhage, A1 hypoplasia, and intensive care for postoperative brain infarction are warranted for improved surgical outcomes in patients with ruptured AComA aneurysm undergoing surgical clipping.