A recent systematic review reported that the prevalence of enteral nutrition intolerance in critically ill patients ranged from 2% to 75%, and the pooled rate was 38.3%.Many randomized controlled trials have reported that the incidence of pneumonia, regurgitation and aspiration do not correlate well with gastric residual volume (GRV) monitoring. In addition, it was reported that GRV monitoring may cause more frequent obstructions in the enteral tube access, leading to greater loss of time for intensive care unit nurses and patients receiving less than the prescribed daily intake due to enteral nutrition interruptions. The most recent SCCM/ASPEN guidelines in 2016 recommended that GRV monitoring not be included in the daily care protocol, but many institutions still use it to determine whether to continue enteral nutrition or to detect enteral tube-feeding intolerance. This study aimed to evaluate the relationship between ultrasonographic gastric antral measurements and aspirated gastric residual volume GRV in mechanically ventilated critically ill patients receiving enteral tube feeding via nasogastric, orogastric, or percutaneous gastrostomy tubes.
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Correlation between antral cross-sectional area and enteral tube feeding volumes.
Timeframe: From date of inclusion until the date of enteral tube-feeding termination or until the date of weaning from mechanical ventilation or until the date of discharging from ICU or until the date of the death, whichever came first, assessed up to one month.