[Functioning of the acute psychiatric emergency chain in Amsterdam-Amstelland during the COVID-19 pandemic].

Background: At the start of the COVID-19 pandemic, there were fears that a higher proportion of patients with a psychiatric disorder would find themselves in crisis due to the threat of COVID-19 and the impact of the restrictions. If the emergency mental health department would become blocked this could work through to emergency rooms (ER). Acute psychiatry is also assessed at the ER due to lack of space in the emergency mental health department, this is called ‘overflow’.