I-scoop vs C-Mac D-Blade for airway management with spontaneous breathing

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Adults undergoing surgery under general anesthesia will be randomized to airway management with either the i-scoop or the C-Mac D-Blade videolaryngoscope while breathing spontaneously and receiving analgosedation and topical lidocaine. The trial focuses on practical success, ease of use, and lack of complications during intubation. Primary goals include determining if the i-scoop provides better clinical practicability compared with the standard device. The study is conducted at Hannover Medical School with standardized procedures and sedative/topical anesthesia protocols. Outcomes will inform whether preserved spontaneous breathing during intubation can be more practically achieved with newer videolaryngoscopy technology.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Age ≥ 18 years
* Scheduled surgical procedure or intervention under general anesthesia
* Capacity to give informed consent (free and independent decision-making capacity)
* Willingness to provide written informed consent after comprehensive verbal and written information about study aims, procedures, and risks

Exclusion Criteria:

* Lack of, or withdrawal of, written informed consent
* Lack of capacity to consent or legal guardianship for health-related decisions
* Insufficient German language skills for qualified verbal and written informed consent (exclusion to protect patients, since legally valid and substantively meaningful consent is not possible without secured language comprehension)
* Pregnancy or breastfeeding
* Current opioid therapy or chronic opioid therapy discontinued less than 1 month before the procedure
* Known drug or alcohol dependence
* Known hypersensitivity or allergy to lidocaine or its excipients (glycerol, propyl-4-hydroxybenzoate, methyl-4-hydroxybenzoate)
* Severe psychiatric disorder impairing capacity to consent or to cooperate
* Indication for nasal intubation
* Non-pain-related limitation of mouth opening to less than 16 mm
* Severe comorbidities with particular risk in the context of the study intervention (e.g., unstable cardiac or pulmonary disease, uncontrolled epilepsy)
* Participation in another clinical study within the previous 30 days that could influence the present study question

Where it's running

• Hannover Medical School
  Hanover, Lower Saxony, Germany Recruiting

Study contacts

• Principal investigator: Konstantinos Raymondos, Professor, MD — Hannover Medical School
• Study coordinator: Konstantinos Raymondos, Professor, MD
• Email: Raymondos.Konstantinos@mh-hannover.de
• Phone: +49 176 1 532 3317

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Other studies for the same condition or treatment. Recruiting studies are listed first.

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.