Observation on the application effect of chest physical therapy based on lung ultrasound signs in the respiratory management of mechanically ventilated patients.

Objective: This study aimed to explore the efficacy of chest physical therapy guided by lung ultrasound in the respiratory management of patients with invasive mechanical ventilation. Methods: A prospective study design was adopted. A total of 100 patients with invasive mechanical ventilation admitted to the intensive care unit (ICU) of the hospital from January 2024 to March 2025 were selected and divided into an observation group and a control group, with 50 cases in each group, by the random number table method. The control group received chest physical therapy guided by conventional auscultation combined with chest X-ray, while the observation group received chest physical therapy guided by lung ultrasound. The lung ultrasound scores (LUS), diaphragmatic function parameters (displacement and thickening rate), and blood gas indicators of the two groups were compared after 3 days and 7 days of treatment. The duration of mechanical ventilation, ICU stay time, and complication incidence were also recorded. Results: After 3 days and 7 days of treatment, the LUS of the observation group were significantly lower than that of the control group ( Conclusion: Chest physical therapy guided by lung ultrasound can effectively improve pulmonary ventilation and diaphragmatic function in patients on mechanical ventilation, enhance oxygenation efficiency, shorten the treatment cycle, and reduce the risk of complications. These findings demonstrate its significant clinical value and promote its wider application.