The Value of Gastric Antrum Cross-sectional Area Mearsured by Bedside Ultrasound Predicted Feeding Intolerance in Critically Ill Patients

  Objective  To explore the feasibility and effectiveness of gastric antrum cross-sectional area (CSA) mearsured by bedside ultrasound for predicting early feeding intolerance (FI) in critically ill patients.

  Methods  The data were extracted from a multicenter prospective observation study between February 2018 to December 2018. A bivariate logistic regression model was established to identify the correlation between the gastric antrum cross-sectional area (CSA) and the feeding intolerance (FI). Draw the ROC curve to get the best cut-off value.

  Results  This study comprises 150 patients. The mean age was (58.63±16.45) yr., the average APACHE Ⅱ score was 17.43±6.99. The incidence of FI for three days (72 h-FI%) was 28.0%. The multivariate analysis demonstrated that the Day 2 CSA-right lateral decubitus (RLD) was an independent risk factor for FI-day 2 (P=0.033), Day 3 CSA -RLD was an independent risk factor for FI-day 3 (P=0.016). Patients with day 3 CSA-RLD ≥7.092 cm² had significantly higher rates of FI (P=0.001).

  Conclusion  Gastric antrum cross-sectional area measured by ultrasound can predict feeding intolerance during early enteral nutrition. When the Day 3 CSA-RLD is greater than 7.092 cm², the incidence of feeding intolerance is significantly increased.