Anticipation of Succeeded Liberation from Invasive Mechanical Ventilation via Sonographic Pulmonary Scores in Intensive Care Unit Patients; Prospective, Observational Study

Document Type : Original Article

Authors

Anesthesia and ICU Department, Faculty of Medicine, Sohag University, Egypt.

10.21608/asja.2025.356071.1208

Abstract

Background: Liberation from invasive mechanical ventilation remains a challenge for intensive care physicians. The aim of this study was to ensure that; sonographic pulmonary scores in the form of diaphragmatic thickening indices and modified lung ultrasound scores are reliable and accurate additional tools to anticipate successful liberation from invasive mechanical ventilation in intensive care unit patients.
Methods: This study was a prospective, observational study conducted at Sohag university hospital on 80 patients admitted to intensive care unit and mechanically ventilated invasively for more than 24 hours and they were ready for weaning by standard methods. At the time of spontaneous breathing trials, diaphragm and lung ultrasound were done to obtain diaphragmatic thickening indices and modified lung ultrasound scores. Patients were classified into two groups; failure group (FG) and succeeded group (SG) of liberation from invasive mechanical ventilation.
Results: Only 13 cases (16.25%) were re-intubated within 48 hours after extubation (FG) and 67 cases (83.75%) showed succeeded liberation from invasive mechanical ventilation (SG). The mean diaphragmatic thickening indices were lower in FG (37.2±4.02%) compared to SG of liberation from invasive mechanical ventilation (40.9±6.2%) with significant p-value (<0.005) and the mean modified lung ultrasound scores was higher in the FG (16.62±3.223) compared to the SG, (10.69±3.75) with highly significant p-value (<0.001).
Conclusion: In our study, sonographic pulmonary scores in the form of diaphragmatic thickening indices and modified ultrasound lung scores provide rapid, bedside, non-invasive, reliable, and accurate, additional methods to anticipate succeeded liberation from invasive mechanical ventilation in critically ill patients.

Keywords