An observational study in Laryngeal Mask Airway, sponsored by Samsun University. Recruiting at 1 site in Turkey (Türkiye). Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-09-24.
Sponsored by Samsun University · Observational
Video laryngeal masks (VLMAs) are increasingly used as a minimally invasive alternative in airway management. The use of neuromuscular blocking agents can affect VLMA placement and airway physiology. As a result, there may be differences in postoperative respiratory complications and middle ear pressure.
Video laryngeal masks (VLMAs) are frequently used in airway management. Especially in surgical procedures lasting longer than one hour, VLMA cuff pressure, positive pressure ventilation, and airway manipulations are associated with postoperative sore throat and changes in middle ear pressure. The aim of this study is to evaluate the effect of neuromuscular blocker (rocuronium) administration on postoperative sore throat during video laryngeal mask use in surgical procedures lasting longer than one hour. Furthermore, it aims to examine its effects on changes in middle ear pressure, oropharyngeal leak pressure, and airway-related clinical parameters.
226 studies on the registry are indexed under Pharyngitis; 35 are open to participants now.
This study's planned enrollment of 90 is below the median of 289 across 33 observational studies indexed under Pharyngitis.
Browse Pharyngitis studies →Samsun University is the lead sponsor of 89 studies on the registry; 20 are open to participants now.
Compared within Pharyngitis, the registry's first condition term, which may not be this study's main condition. Counted across the registry records on this site, refreshed daily. How we classify →
Participants who will use a laryngeal mask in their surgical procedures
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ASA physical status
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
In this group, a video laryngeal mask will be implanted with the aid of a neuromuscular blocker.
Drug: using rocuronium before vide laryngeal mask airway
In this group, a video laryngeal mask will be placed without the use of neuromuscular blockers.
using rocuronium before video laryngeal mask airway
Also known as: rocuronium
Postoperative sore throat
Postoperative sore throat will be assessed using NRS (0: no pain, 10: most severe pain).
Time frame: 24 hours
Changes in middle ear pressure
In this study, middle ear pressure will be assessed using tympanometry during the preoperative period, immediately after induction of anesthesia, following endotracheal intubation, and at the 3rd and 5th minutes thereafter.
Time frame: 1 hour
Oropharyngeal leak pressure
Oropharyngeal leak pressure (OLP) was measured by closing the adjustable pressure-limiting (APL) valve with a fresh gas flow of 3 L/min, and the airway pressure at which an audible leak occurred or the manometer pressure reached a plateau was recorded as the OLP (cmH₂O).
Time frame: during surgery
video laryngeal mask airway placement time
Video laryngeal mask airway placement time will be recorded after induction.
Time frame: 2 minutes after induction
Plan to share: No — The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request.
No publications or documents are linked to this record.
Started May 2026 (actual). Primary completion is estimated for Dec 2026, 7 months after the start.
Of 21 observational studies under Pharyngitis, half reached primary completion within 20 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 29. This study's planned 7 months is below that.
How these figures are worked out, and which studies are left out of them.
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Samsun University