Effect of Tubular Feeding with the Measurement of Gastric Residual Volume on Ventilator Associated Pneumonia

Several measures have been taken to prevent the onset of ventilator-associated pneumonia (VAP), one of which is measuring the gastric residual volume. The purpose of this study is to compare the effect of two tube feeding methods with and without gastric residual volume measurement on VAP.
This clinical trial was performed on the study population of patients with endotracheal tubes hospitalized in Intensive Care Units 1 and 2 of Golestan hospital, Ahvaz, Iran. Overall, 70 patients who met the inclusion criteria were randomly divided into groups 1 and 2. Groups 1 and 2 were fed with and without measuring gastric residual volume, respectively. The incidence of pneumonia was assessed using the Modified Clinical Pulmonary Infection Score prior to the intervention and on the fifth day post-intervention. The data were analyzed by the SPSS software version 22.
The incidence of VAP was 9.12% in the group with gastric residual volume measurement and 7.14% in the other group. There was no significant difference between the two groups (P=0.827) regarding VAP prevalence.
Monitoring gastric residual volume requires aspiration and repeated measurements of gastric contents, resulting in increased nursing workload. Moreover, if the gastric residual volume is high, the patient will be deprived of calorie intake and subjected to malnutrition. As a result, removing the monitoring of gastric residual volume from the care setting and focusing on interventions proven to reduce VAP can be more helpful.