Attributes of leadership skill development in high-performance pre-hospital medical teams: results of an international multi-service prospective study.

Backgrounds: Team leadership skills of physicians working in high-performing medical teams are directly related to outcome. It is currently unclear how these skills can best be developed. Therefore, in this multi-national cross-sectional prospective study, we explored the development of these skills in relation to physician-, organization- and training characteristics of Helicopter Emergency Medicine Service (HEMS) physicians from services in Europe, the United States of America and Australia.

Lower plasma calcium associated with COVID-19, but not with disease severity: a two-centre retrospective cohort study.

Background: Previous studies indicate hypocalcaemia as a potential diagnostic and prognostic marker of corona-virus disease 2019 (COVID-19). Our aim was to investigate these relations in more detail in a large test cohort and an independent validation cohort.

Methods: We retrospectively included 2792 COVID-19 suspected patients that presented to the emergency department (ED) of two hospitals.

Case report: appendicitis induced Staphylococcus aureus and Klebsiella pneumoniae bacteremia in a young healthy male.

Background: Appendicitis is one of the most frequently encountered conditions at the emergency department. Distinction is made between complicated and uncomplicated appendicitis. Complicated appendicitis may cause serious intra-abdominal infection, bacteremia, or sepsis.

[Cerebral amyloid angiopathy: an easily missed diagnosis in patients with transient neurological deficits].

Cerebral amyloid angiopathy (CAA) is a degenerative neurovascular disease in which the protein amyloid-beta accumulates in the vessel wall of cortical and leptomeningeal arteries. This may lead to acute lobar cerebral haemorrhage, which in case of CAA is fatal in 10-30% of cases. CAA may also present with transient focal neurological episodes (TFNE), the symptoms of which may mimic a transient ischaemic attack (TIA).