This study is a clinical trial and its purpose is to evaluate the effect of low and normal flow anesthesia on atelectasis formation in patients undergoing bariatric surgery by ultrasonography. In this study, lung ultrasounds and respiratory function tests will be performed on volunteers before and after surgery. These procedures are completely painless and safe. No invasive procedure will be performed in the study; the methods used do not pose any additional risk other than existing treatment procedures.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
SINGLE
Enrollment
60
In Group D, patients undergoing bariatric surgery will receive low-flow inhalational anesthesia (0.5-1 L/min) with sevoflurane. The aim is to evaluate whether the reduced fresh gas flow rate decreases the incidence of postoperative atelectasis, assessed via pulmonary ultrasonography. In Group N, patients undergoing bariatric surgery will receive standard-flow inhalational anesthesia (2-4 L/min) with sevoflurane. This group serves as the comparator to evaluate the impact of flow rate on postoperative atelectasis incidence.
the atelectasis rate with the Lung Ultrasound score (AUS score).
Time frame: 8 months
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