The Impact of Automatic Lung Recruitment Postoperative Pulmonary Complications

Study Background and Purpose As society ages, an increasing number of elderly patients undergo surgery. Following surgery, particularly abdominal procedures, patients are susceptible to lung-related issues such as atelectasis (lung collapse) and infection, collectively known as Postoperative Pulmonary Complications (PPCs). These complications are a major factor affecting the recovery of elderly patients. One method of general anesthesia is called Total Intravenous Anesthesia (TIVA). This study aims to investigate whether using an automated lung recruitment function, a smart feature available on modern anesthesia machines, can help protect lung function and reduce complications in elderly patients undergoing laparoscopic surgery under TIVA. The goal is to identify safer and more effective methods for anesthesia care. Study Design This is a clinical research study. Eligible elderly patients who provide consent will be randomly assigned to one of two groups: Study Group: The automated lung recruitment function on the anesthesia machine will be used to manage breathing during surgery. Control Group: Current standard methods for breathing management will be used during surgery. The primary goal is to observe and compare the blood oxygenation level 30 minutes after surgery (a key indicator of lung function) between the two groups. The investigators will also record the occurrence of any lung-related complications within the first 3 days after surgery. What Will Participants Do? If participants agree to participate, they will be asked to: Sign an informed consent form. Undergo some pre-operative assessments arranged by the research team. Receive the corresponding breathing management method during surgery, as determined by random assignment. Allow the research team to collect relevant medical data after surgery (e.g., blood gas analysis results, medical records). All data will be kept strictly confidential. Participation does not involve any additional invasiv