We measure in this study lung function of 100 patients immediately after major lower abdominal surgery. We compare lung function, when either endotracheal intubation, or laryngeal masks are used for airway protection during surgery. The hypothesis is that the use of laryngeal masks is associated with less impairment of lung function in the immediate postoperative phase.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
100
The change between pre- and postoperative forced expiratory volume in one second (FEV1) in lung function
The lung function is quantified by using Spirometry and pulse oximetry. Spirometry is performed in a standardized way according to the recommendations of the American Thoracic Society (ATS) and European Respiratory Society (ERS)
Time frame: one day prior to surgery, 1 hour after surgery (recovery room), at day one after surgery
Vital capacity (VC) measured by spirometry.
Spirometry is performed in a standardized way according to the recommendations of the American Thoracic Society (ATS) and European Respiratory Society (ERS)
Time frame: one day prior to surgery, i hour after after surgery (recovery room), at day one after surgery
Forced vital capacity (FVC)
Time frame: one day prior to surgery, one hour after surgery (recovery room), at day one after surgery
mid-expiratory flow (MEF 25, 50, 75)
Time frame: one day prior to surgery, one hour after surgery, at day one after surgery
Peak expiratory flow (PEF)
Time frame: one day prior to surgery, one hour after surgery (recovery room) , at day one after surgery
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