Intravascular volume status in patients with moderate to severe COVID-19: a case series

Coronavirus disease 2019 (COVID-19) is a transmissible disease instigated by the coronavirus (SARS-CoV-2) which has been identify for few years. Patients with COVID-19 may present with hypovolemia due to vomiting, anorexia, or diarrhea. However, treatment guidelines recommend a “conservative” fluid administration strategy with dynamic measuring parameters to assess fluid response. Since physical examination has a limited ability to predict volume status, other non-invasive methods such as point-of-care ultrasound (POCUS) have been extensively used for this purpose in other diseases. In this case series, we describe intravascular volume status in patients with moderate to severe COVID-19 as measured by inferior vena cava (IVC) calibre and distensibility.