The goal of this clinical trial is to evaluate whether the MetaNeb® System can effectively prevent and treat early postoperative atelectasis in adult patients admitted to ICU after esophagectomy for esophageal cancer. The main question it aims to answer is: can the MetaNeb® system significantly reduce the lung ultrasound score (LUSS) indicating atelectasis on postoperative days 1 and 2? Participants will be randomly assigned to either the standard treatment or MetaNeb group, undergo lung ultrasound and electrical impedance tomography (EIT) assessments on postoperative days 1 and 2, receive at least 4 sessions of MetaNeb therapy on postoperative day 1 if in the intervention group, be monitored for oxygenation indices, ICU stay duration, incidence of mechanical ventilation, need for bronchoscopic intervention, and adverse events like pneumothorax.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
178
Patients in the MetaNeb group receive at least 4 sessions of MetaNeb therapy on postoperative day 1 (each session includes cycles of CPEP and CHFO modes totaling 10 minutes).
Standard postoperative care, including guidance on coughing and expectoration, turning and back percussion, and early mobilization (getting out of bed for physical activity).
Zhongshan Hospital Fudan University
Shanghai, Shanghai Municipality, China
The difference of lung ultrasound scores (LUSS) indicating atelectasis on postoperative day 1 and 2
Time frame: From postoperative day 1 to day 2
The difference of dorsal ventilation region assessed by electrical impedance tomography (EIT) on postoperative day 1 and 2
Time frame: From postoperative day 1 to day 2
The difference of PaO2/FiO2 ratios on postoperative day 1 and 2
Time frame: From postoperative day 1 to day 2
The number of cases that underwent bronchoscopy intervention during ICU stay
Time frame: From admission to ICU discharge
The number of cases that underwent high flow oxygen therapy or mechanical ventilation
Time frame: From admission to ICU discharge
Length of ICU stay
Time frame: From admission to ICU discharge
The number of cases that develop pneumothorax during intervention
Time frame: From admission to the end of intervention at postoperative day 2
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