Laryngoscope force and pressure during endotracheal intubation with different laryngoscopes on patients

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00012841

Enrollment

156

Registered

2017-08-03

Start date

2017-07-04

Completion date

Unknown

Last updated

2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Force generated by direct laryngoscopy

Interventions

Group 1: Randomized Allocation to one of three different laryngoscopes: MacIntosh-Blade Group 2: Randomized Allocation to one of three different laryngoscopes: Videolaryngoscope C-Mac Group 3: Rando

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Patients who need an elective operation with an endotracheal tube under general anesthesia Age =18 years ASA Classifikation 1-3

Exclusion criteria

Exclusion criteria: missing informed consent rapid sequence induction oral/pharyngeal/laryngeal masses symtomatic gastro-esophageal reflux desease severely limited range of motion of head and neck severe coronary artery desease severe pulmonary desease vocal cord dysfunction pregnancy

Design outcomes

Primary

Measure	Time frame
Force generated by direct laryngoscopy and endotracheal intubation assessed by pressure sensors mounted on the laryngoscope blade.	—

Secondary

Measure	Time frame
Duration of laryngoscopy Glottic view Subjective evaluation of the generated force by the laryngoscopist (user) Assessment of the feasability of the laryngoscope used	—

Countries

Germany

Contacts

Public ContactAxel Schmutz

Klinik für Anästhesiologie und IntensivmedizinUNIVERSITÄTSKLINIKUM FREIBURG

axel.schmutz@uniklinik-freiburg.de0761 270 24010

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Jun 6, 2026