Postoperative pulmonary complications are serious threat to surgical patients, especially to high-risk geriatric patients. There is evidence that laryngeal mask airway is associated with postoperative pulmonary complications in comparison with tracheal intubation. However, conclusion may reverse among frail population such as high-risk geriatric patients. Geriatric patients are often associated with loose mask seal due to physiological changes, which may increase chances of aspiration and pose challenges to intraoperative airway maintenance. It was reported that laryngeal mask airway causes more atelectasis among children, but no report among high-risk elderly. The investigators therefore propose this study to verify the non-inferior effect of laryngeal mask airway compared to tracheal intubation on postoperative pulmonary complications among high-risk geriatric patients undergoing elective non-cardiothoracic surgeries.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
2,210
The two most commonly used devices for mechanical ventilation.
PPC
The primary outcome is the incidence of a collapsed composite of postoperative pulmonary complications within 7 postoperative days, diagnosed according to Dr Wang's work published on Anesthesiology, 2022 (PMID: 35226725).
Time frame: 7 days after surgery
extrapulmonary complications
extrapulmonary complications according to regular medical reports
Time frame: 7 days after surgery
severity of PPC
Clavien Dindo criteria
Time frame: 7 days after surgery
diagnosis of PPC
Postoperative pulmonary complications are defined by respiratory infection, respiratory failure, pleural effusion, atelectasis, pneumothorax, bronchospasm, and aspiration pneumonia (Diagnosed according to utcome is the incidence of postoperative pulmonary complications within 7 postoperative days, diagnosed according to Anesthesiology, 2022 (PMID: 35226725).
Time frame: 7 days after surgery
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