Coronavirus Disease 19 (COVID-19) was declared a pandemic by the World Health Organization (WHO) in March 2020. Since the outbreak, neuropsychiatric presentations such as delirium have been developing.

Our aim is to describe sociodemographic and clinical differences between inpatients cursing with Acute Confusional Syndrome (ACS) with and without COVID-19 pneumonia.

This is an observational-descriptive study. All patients attended by the liaison psychiatry service of Hospital del Mar, between February and April 2020, with ACS diagnosis were included. The sample was divided in 2 groups (with and without COVID-19 pneumonia). Sociodemographic and clinical variables including sex, age, previous somatic or psychiatric history, ACS risk factors, ACS subtype and pharmacological treatment were compared. Chi-square and U Mann Whitney tests were used.

The total sample was 62 patients. 43.5% were women with a mean age of 71,7 (SD 11,3). Covid pneumonia group included 26 patients. There was a higher percentage of Hypoxemia in Covid pneumonia patients (p<0,001). There were significant differences between Covid pneumonia group and ACS in relation to: a previous diagnosis of Ischemic Heart Disease (p=0,007), Heart Failure (p=0,029) and Nephropathy (p=0,022). Dexmedetomidine (p=0,001) was highly used for ACS treatment in Covid pneumonia patients.

In this sample, patients with ACS and Covid pneumonia had a bigger rate of hypoxemia and previous history of Ischemic Heart Disease, Heart Failure and Nephropathy compared to the rest of ACS patients. Dexmedetomidine was more commonly used for the treatment of ACS in Covid pneumonia group. More studies would be necessary to assess the significance.

No significant relationships.

The coronavirus disease 2019 (COVID-19) pandemic has had a profound worldwide impact on health. Acute Confusional Syndrome (ACS) is the most common neuropsychiatric complication in COVID-19 infection.

Describe the characteristics of the admited patients attended by the liaison psychiatry service for acute confusional syndrome during the COVID 19 pandemic. Sociodemographical and clinical variables were descrived.

We conducted an observational, descriptive study. All patients attended by the liaison psychiatry service of Hospital del Mar, between February and April 2020, with ACS diagnosis were included.

We included 62 patients with acute confusional syndrom; 35 were men (56.5%), and mean age was 71.71 years (standard deviation [SD]:11.345). The mean duration of admision stay was 41.19 days [SD: 38.039]. The mean number of consultations carried out was 6.5 [SD: 5.422]. 52.5% of our sample of our sample had confusional symptoms for 8 days. 50 patients presented complications during admission (80.6%), of which 43 patients developed infectious complications (69.4%). 59 patients had a history of chronic diseases (95.2%). 54 patiens (88.5%) had potencial risk factors associated with acute confusional syndrome including: isolation in 24 (39.3%), active infection in 46 (74.2%), hypoxemia in 25 (40.3%), previous cognitive impairment in 15 (24.6%)

Acute Confusional Syndrome mainly affects people with risk factors such as isolation, active infection and hypoxemia (which in turn are symptoms of Covid-19).

No significant relationships.