This study will compare an intelligent pulmonary function exercise device with usual care and natural recovery in patients recovering from lung cancer surgery.
After lung cancer surgery, many patients have reduced lung function, shortness of breath, lower exercise tolerance, and a risk of postoperative pulmonary complications. Standard care usually includes postoperative nursing, pain control, coughing and sputum clearance instruction, early mobilization, discharge education, and routine follow-up. However, patients often lack structured guidance, feedback, and monitoring after discharge.
Participants in this study will be randomly assigned to one of two groups. One group will use an intelligent pulmonary function exercise device for respiratory training during hospitalization and at home until 30 days after surgery. The prescribed training is two sessions per day, with each session including 30 expiratory training repetitions and 30 inspiratory training repetitions. The device records training completion and related training information and provides reminders and feedback. The other group will receive usual perioperative care, standard discharge education, and natural recovery follow-up without a study-specified respiratory training device or training prescription.
The main purpose of the study is to determine whether the intelligent pulmonary function exercise device improves recovery of forced expiratory volume in 1 second, or FEV1, from before surgery to 30 days after surgery. The study will also evaluate lung function at 90 days, symptoms, quality of life, walking capacity, training adherence, and postoperative complications.
1. Age 18 to 75 years. 2. Pathologically confirmed primary non-small cell lung cancer. 3. Scheduled to undergo elective thoracoscopic lobectomy or sublobar resection. 4. Able to understand the study and voluntarily sign written informed consent before surgery.
1. Preoperative measured FEV1 less than 50% of predicted value. 2. Severe cardiopulmonary dysfunction or other conditions judged unsuitable for respiratory training.
Parallel
Intelligent Pulmonary Function Exercise Device
DeviceParticipants will receive usual perioperative care and active respiratory training using an intelligent pulmonary function exercise device. The training prescription is two sessions per day, with each session consisting of 30 expiratory training repetitions and 30 inspiratory training repetitions, during hospitalization and at home until 30 days after surgery. The device records training completion and parameters, provides reminders and real-time feedback, and transmits data to the study center for adherence monitoring and remote management.
Usual Care and Natural Recovery
BehavioralParticipants will receive usual perioperative care, standard discharge education, safety instructions, and natural recovery follow-up. No study-specified respiratory training device, prescribed number of respiratory training sessions, or dynamic training targets will be provided. Any self-initiated respiratory training, use of respiratory training devices, or pulmonary rehabilitation outside the study will be recorded during follow-up.
Change in Forced Expiratory Volume in 1 Second From Baseline to 30 Days After Surgery
The primary outcome is the change in FEV1, measured in liters, from the preoperative baseline to 30 days after surgery. FEV1 will be measured using standardized pulmonary function testing. The between-group difference in the change in FEV1 will be compared.
Change in FEV1 From Baseline to 90 Days After Surgery
Dyspnea-12 Score
MD Anderson Symptom Inventory-Lung Cancer Module Score
Six-Minute Walk Distance
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