Introduction: To improve the nutritional care and resource allocation of critically ill patients with severe
acute respiratory syndrome coronavirus-2 (SARS-CoV-2), we described their characteristics, treatment
modalities and clinical outcomes, and compared their nutrition interventions against the American Society
for Parenteral and Enteral Nutrition (ASPEN) recommendations.
Methods: This was a retrospective observational study conducted in 5 tertiary hospitals in Singapore.
Characteristics, treatment modalities, clinical outcomes and nutrition interventions of critically ill patients
with SARS-CoV-2 who received enteral and parenteral nutrition were collected between January and
May 2020.
Results: Among the 83 critically ill patients with SARS-CoV-2, 22 (28%) were obese, 45 (54%) had
hypertension, and 21 (25%) had diabetes. Neuromuscular blockade, prone therapy and dialysis were
applied in 70% (58), 47% (39) and 35% (29) of the patients, respectively. Refeeding hypophosphataemia
and hospital mortality occurred respectively in 6% (5) and 18% (15) of the critically ill patients with
SARS-CoV-2. Late enteral nutrition and cardiovascular comorbidities were associated with higher
hospital mortality (adjusted relative risk 9.00, 95% confidence interval [CI] 2.25–35.99; 6.30, 95%
CI 1.15–34.40, respectively). Prone therapy was not associated with a higher incidence of high gastric
residual volume (≥250mL). The minimum caloric (15kcal/kg) and protein (1.2g/kg) recommendations of
ASPEN were achieved in 54% (39) and 0% of the patients, respectively.
Conclusion: The high obesity prevalence and frequent usage of neuromuscular blockade, prone
therapy, and dialysis had considerable implications for the nutritional care of critically ill patients with
SARS-CoV-2. They also did not receive adequate calories and protein. More audits should be conducted
to refine nutritional interventions and guidelines for this ever-evolving disease.
Keywords: COVID-19, critical illness, energy intake, enteral nutrition, nutrition support, protein intake