Comparing I-scoop and C-Mac D-Blade Videolaryngoscopes for Airway Management During Surgery with Spontaneous Breathing and Light Sedation

What this Trial Is About

This research aims to evaluate whether the i-scoop videolaryngoscope improves the ease and safety of airway management under spontaneous breathing and analgosedation compared to the established C-Mac D-Blade videolaryngoscope in adults undergoing surgery with general anesthesia. The study addresses the challenge of limited use of spontaneous breathing airway management, which is less invasive but technically demanding and often uncomfortable for patients. Researchers want to see if the bladeless, anatomy-guided i-scoop can offer better clinical practicability, defined as successful, easy, and complication-free intubation. Participants are randomly assigned to one of two groups one using the i-scoop videolaryngoscope without a blade that follows the natural airway anatomy, and the other using the C-Mac D-Blade, a hyperangulated blade-based videolaryngoscope. Both groups receive a standardized procedure including analgosedation with remifentanil and propofol, topical lidocaine anesthesia, oxygenation with a face mask, and intubation under continuous visual control. The i-scoop features dual optics and a tube guide channel allowing two perspectives during tube placement, while the C-Mac D-Blade uses a pre-shaped tube or stylet. Operators are trained extensively before the trial. During the study, participants continue breathing on their own and are monitored with pulse oximetry, ECG, blood pressure, capnography, and EEG. Researchers assess the success and ease of intubation, complications, patient discomfort, and recall of the procedure at multiple time points during intubation, in the recovery room, on the first postoperative day, and seven days after intubation. Patient interviews are conducted by staff blinded to the group assignment to evaluate outcomes and safety. The total study duration spans from intubation through the 7-day postoperative follow-up.

I-scoop vs. C-Mac D-Blade Videolaryngoscope for Airway Management Under Spontaneous Breathing and Analgosedation