A study on ariboflavinosis was made among the students of a college in Chongqing from Jan. to Apr. 1980. The incidence of ariboflavinosis was 18.3%. There were typical oro-genital syndromes, e.g. cheilosis, angular stomatitis, glossitis and scrotal dermatitis etc. 84 students suffered fro-m 3 types of scrotal dermatitis, The incidences of squamo-erythematoid pa-puloid and eczematoid type were 7.26%, 19% and 8.3% respectively. A patient with scrotal dermatitis(eczematoid type) was accompanied with similar lesions on the skin of buttock, right chest and right upper arm and they subsided almost at the same time with scrotal lesion after riboflavin treatment.Ten subjects of scrotal dermatitis were selected for fungus examination and it gave negative findings both microscopically and culturally.Dietary survey was made in the student's dining hall and the nutrients were calculated. The amount of riboflavin averaged only 1.07 mg per capita per day, but the calculated value was probably higher than the actual intake due to improper cooking. The intakes of thiamine, niacin and ascorbic acid were adequate.The 4-hour urinary riboflavin excretions of 10 subjects following a 5mg oral load averaged 590?g.Dietary survey, biochemical test and clinical examination benefited the diagnosis of ariboflavinosis. The lack of the knowledge of nutrition and improper cooking of vegetables were perhaps the main causes of such deficiency.

INTRODUCTION: Pericardiocentesis is a potentially life-saving procedure. We compared two low-cost models-an agar-based model and a novel model, Centesys-in terms of ultrasound image quality and realism, effectiveness of the model, and learners' confidence and satisfaction after training. METHODS: In this pilot randomised 2x2 crossover trial stratified by physician seniority, participants were assigned to undergo pericardiocentesis training either with the agar-based or Centesys model first, followed by the other model. Participants were asked to rate their confidence in performing ultrasound-guided pericardiocentesis, clarity and realism of cardiac structures on ultrasound imaging, and satisfaction on a 7-point Likert scale before and after training with each model. RESULTS: Twenty participants with median postgraduate year of 4 (interquartile range [IQR] 3.75-6) years were recruited. Pre-training, participants rated themselves a median score of 2.5 (IQR 2-4) for level of confidence in performing pericardiocentesis, which improved to 5 (IQR 4-6) post-training with Centesys ( CONCLUSION Centesys achieved greater learner satisfaction as compared to the agar-based model, and was an effective tool for teaching ultrasound-guided pericardiocentesis and drain insertion.

INTRODUCTIONThis study aimed to evaluate compliance with and performance of the Canadian Computed Tomography Head Rule (CCHR), and its applicability to the Singapore adult population with minor head injury.

METHODSWe conducted a retrospective study over six months of consecutive patients who presented to the adult emergency department (ED) with minor head injury. Data on predictor variables indicated in the CCHR was collected and compliance with the CCHR was assessed by comparing the recommendations for head computed tomography (CT) to its actual usage.

RESULTSIn total, 349 patients satisfied the inclusion criteria. Common mechanisms of injury were falls (59.3%), motor vehicle crashes (16.9%) and assault (12.0%). 249 (71.3%) patients underwent head CT, yielding 42 (12.0%) clinically significant findings. 1 (0.3%) patient required neurosurgical intervention. According to the CCHR, head CT was recommended for 209 (59.9%) patients. Compliance with the CCHR was 71.3%. Among the noncompliant group, head CT was overperformed for 20.1% and underperformed for 8.6% of patients. Multivariate logistic regression analysis revealed that absence of retrograde amnesia (odds ratio [OR] 4.1, 95% confidence interval [CI] 1.8-9.7) was associated with noncompliance to the CCHR. Factors associated with underperformance were absence of motor vehicle crashes as a mechanism of injury (OR 6.6, 95% CI 1.2-36.3) and absence of headache (OR 10.8, 95% CI 1.3-87.4).

CONCLUSIONCompliance with the CCHR for adult patients with minor head injury remains low in the ED. A qualitative review of physicians' practices and patients' preferences may be carried out to evaluate reasons for noncompliance.

Accidental Falls ; Accidents, Traffic ; Adult ; Aged ; Canada ; Craniocerebral Trauma ; diagnostic imaging ; Decision Making ; Decision Support Systems, Clinical ; Electronic Health Records ; Female ; Glasgow Coma Scale ; Guideline Adherence ; Head ; diagnostic imaging ; Humans ; Male ; Middle Aged ; Multivariate Analysis ; Odds Ratio ; Practice Patterns, Physicians' ; Retrospective Studies ; Tomography, X-Ray Computed ; Violence