Abstract:Objective To explore the efficacy of bedside lung ultrasound in newborns with severe pneumonia.Method A total of 153 newborns with severe pneumonia admitted to Northwest Women's and Children's Hospital from January 2023 to January 2024 were selected. They were randomly assigned into the ultrasound group (n = 76) and the control group (n = 77) using a random number table method. The control group received conventional pulmonary assessment methods, while the ultrasound group underwent bedside lung ultrasound for pulmonary evaluation and received corresponding pulmonary physiotherapy. The two groups were compared in terms of the time to clinical symptom relief, vital signs, duration of mechanical ventilation, oxygen therapy duration, and length of hospital stay.Results There were no statistically significant differences between the ultrasound group and the control group regarding the rate of shred sign, incidence of involvement of two or more intercostal spaces, rate of fluid bronchogram sign, pleural effusion rate, and atelectasis rate (P > 0.05). However, the symptom relief times for cough and expectoration, pulmonary rales, reduced appetite and activity, abdominal distension, heart failure, and shock were significantly shorter in the ultrasound group compared to the control group (P < 0.05). The differences of the arterial partial pressure of carbon dioxide and the ratio of partial pressure arterial oxygen and fraction of inspired oxygen before treatment and 12 hours after treatment were significantly greater in the ultrasound group than in the control group (P < 0.05). Furthermore, the ultrasound group had significantly shorter durations of mechanical ventilation and oxygen therapy, as well as length of hospital stay compared to the control group (P < 0.05).Conclusion Bedside lung ultrasound can effectively assess pulmonary status in neonates with severe pneumonia, guide treatment, promote symptom relief and lung function recovery, shorten the length of hospital stay, and demonstrates significant clinical value.