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Videolaryngoscopes in the Morbidly Obese

NCT07787468 · Status: ENROLLING_BY_INVITATION · Phase: NA · Type: INTERVENTIONAL · Enrollment: 100

Last updated 2026-08-26

No results posted yet for this study

Summary

This study will evaluate four videolaryngoscopes used for intubation of extremely obese (class 3 obesity) patients scheduled for bariatric surgery. One hundred adult patients will be scheduled for an elective sleeve gastrectomy at the Mazowiecki Szpital Specjalistyczny in Radom, Poland. All patients will receive premedication with 300 mg pregabalin 30 minutes before the start of anaesthesia. An extended monitoring will be applied. This consists of ECG, IBP (invasive blood pressure), SpO2, TOF (train-of-four), entropy and volatile anaesthetic concentration. All patients will be placed in a ramped position (HELP - Head-elevated Laryngoscopy Position) and will be pre-oxygenated with FiO2 1.0 for three minutes prior to induction. A standardised local protocol of opioid-free anaesthesia for bariatric patients will be utilised. Prior to proper induction of anaesthesia, IV infusions of 1% lidocaine and dexmedetomidine 10 µg ml-1 will be started. This will be followed by induction with IV propofol (200 mg) and ketamine (50 mg). Rocuronium (100 mg) will be used as a neuromuscular blocking agent. Adequate neuromuscular block will be confirmed and controlled throughout the procedure with TOF Watch (Organon, Dublin, Ireland). A cuffed, size 8.0 tracheal tube with stylet (Sumi, Sulejówek, Poland) will be used for intubation. A single-use hyperangulated blade will be used in all studied devices. Correct placement of the tracheal tube will be confirmed by videolaryngoscopy, capnography and chest auscultation. All patients will be anaesthetised by experienced consultant anaesthetists with over 10 years of clinical practice after completion of specialist training. Furthermore, all anaesthetists participating in the study will be trained with all VLs used until they feel competent. Only two intubation attempts with a studied videolaryngoscope will be allowed. A single attempt will be limited to 60 seconds. A failure is defined as an attempt which lasted more than 60 seconds, when saturation dropped below 90%, after two unsuccessful attempts, when airway injury or bronchospasm occurred. A single-digit number will be allocated to each of the studied videolaryngoscopes: 1 for the C-MAC PM, 2 for the McGrath MAC, 3 for the VisionPro and 4 for the AceScope. A single sheet of paper containing printed number will be placed in an opaque envelope. Then they will be assigned to the participating anaesthetist by computer-generated randomization. The SPSS 29.0 software (IBM, Armonk, NY, USA) will be used for allocation. Furthermore, patients will be blinded to randomization.

Conditions

  • Obesity Difficult Airway Airway Management

Interventions

DEVICE

Airway management

Device used for intubation

Sponsors & Collaborators

  • Uniwersytet Radomski im. Kazimierza Pułaskiego

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-08-15
Primary Completion
2026-11-01
Completion
2026-11-01

Countries

  • Poland

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07787468 on ClinicalTrials.gov