Clinical application of continuous intra-abdominal pressure monitoring combined with feedforward control theory in early enteral nutrition tolerance assessment in patients with mechanical ventilation
Objective To explore the effect of continuous intra-abdominal pressure monitoring combined with feedforward control theory in improving early enteral nutrition tolerance in patients with mechanical ventilation through randomized trial design. Methods A total of 100 patients with mechanical ventilation who visited the Sanming Second Hospital from June 2022 to June 2023 were included in this study. The patients with mechanical ventilation were randomly divided into two groups,with 50 cases in each group. The control group received routine enteral nutrition support,while the experimental group received continuous abdominal pressure monitoring and feedforward control theory on this basis. Observe the duration of mechanical ventilation and hospitalization,changes in intra-abdominal pressure on days 1,3,7,and 14 after intervention,nutritional status indicators,nutrition risk screening 2002 (NRS2002) score,and tolerance to enteral nutrition in two groups of patients. Results The mechanical ventilation time and hospitalization time of the experimental group were significantly shorter than those of the control group,and the difference was statistically significant (P<0.05). On the 7th and 14th day after intervention,the intra-abdominal pressure in the experimental group was significantly lower than that in the control group,and the difference was statistically significant (P<0.05). On the 14th day after intervention,the levels of serum prealbumin,serum albumin,and hemoglobin in the experimental group were significantly higher than those in the control group,and the differences were statistically significant (P<0.05). On the 14th day after intervention,the NRS2002 score of the experimental group was significantly lower than that of the control group,and the difference was statistically significant (P<0.05). The proportion of good tolerance in the experimental group was significantly higher than that in the control group,while the proportion of moderate tolerance and intolerance was significantly lower than that in the control group,and the difference was statistically significant (P<0.05). Conclusion The combination of continuous intra-abdominal pressure monitoring and feedforward control theory can significantly improve the early enteral nutrition tolerance of patients with mechanical ventilation,optimize their nutritional status,and reduce the risk of nutritional deficiency. This method has wide application value in clinical practice.
Intra-abdominal pressure monitoringFeedforward control theoryEarly enteral nutrition toleranceMechanical ventilation