Abstract Body

Introduction:

The infection caused by the SARS-CoV-2 virus called COVID-19 may affect not only the respiratory system but also the central nervous system (CNS). Delirium is a frequent and serious condition in COVID-19 patients and may be caused by the direct invasion of the CNS or the induction of CNS inflammatory mediators or by indirect effects due to the systemic inflammatory status, other organ failure, prolonged mechanical ventilation time, immobilization but also social isolation.

We aim to critically review literature reporting this syndrome in patients infected by the SARS-CoV-2 virus with a particular emphasis on reported clinical, laboratorial and neuroimaging findings.

Methods:

A state-of-the-art literature review was performed using PubMed, Embase and Web of Knowledge using the following keywords: delirium, COVID-19, SARS-Cov-2, neuroimaging, laboratorial findings.

Results:

More than 50% of patients with COVID-19 may present with delirium and in about 20% of the cases this is the primary presentation of the disorder. Previous data suggests that these patients may show a higher frequency of certain symptoms such as agitation, myoclonus, abulia, and alogia. Some distinct neuroinflammatory syndromes have been identified in patients presenting with delirium associated with the virus, namely, autoimmune encephalitis, Acute Disseminated Encephalomyelitis (ADEM) and stroke showing its potential for CNS involvement.

Many of these patients present normal brain imaging, EEG and CSF findings but others have more specific laboratorial changes such as elevated creatinine kinase, elevated D-dimer levels, abnormal coagulation parameters and positive SARS-Cov-2 PCR in CSF or meningeal enhancement, ischemic stroke and perfusion changes in MRI imaging.

Abstract Body

COVID-19 pandemic had an important impact in mental health across all countries and populations. However, health care professionals, particularly those in the front line have been subjected to increased levels of stress, workload, deterioration of work environment and working conditions while potentially being afraid of contracting the infection themselves or infecting love ones due to the higher risk of contagion when dealing with infected patients. Some studies have stressed out this impact showing increased levels of burnout, depression, hopelessness, stress and post-traumatic stress in all physicians however, the impact of the pandemic may have been different depending on the specialty.

We intended to study the impact of COVID-19 pandemic for doctors working at general hospitals and liaison psychiatrists dealing with COVID-19 patients in Europe.

We developed and applied online questionnaires to physicians working at general hospitals and psychiatrists working at liaison services, in different European countries (Portugal, Italy, Belgium, Greece, Poland, Croatia), in order to determine what were their working conditions and it they reported mental health symptoms during the pandemic. This questionnaire included demographic data, questions about working conditions when dealing with general and COVID patients and the Hospital Anxiety and Depression scale (HADS). It was distributed thought email and social media platforms used by doctors.

This work has been approved by each local Ethics committee and all participants signed an informed consent.