Videolaryngoscope vs VideoLMA for Endotracheal Intubation in RIRS

Comparison of Videolaryngoscope and VideoLMA for Endotracheal Intubation in Patients Undergoing Retrograde Intrarenal Surgery: A Randomized Controlled Trial

This study is a prospective, randomized, parallel-group clinical trial comparing videolaryngoscope and videoLMA for endotracheal intubation in adult patients undergoing surgery. Patients will be randomly assigned into two groups. The primary outcome is intubation time. Secondary outcomes include first attempt success rate, number of attempts, oxygen desaturation, hemodynamic changes, and postoperative complications.

Study Overview

• Status: Not yet recruiting
• Conditions: Airway Management; Urolithiasis
• Intervention / Treatment: Device: Videolaryngoscope; Device: VideoLMA

Detailed Description

Airway management is a critical component of anesthesia practice. Videolaryngoscopes and videoLMA devices are widely used tools for endotracheal intubation. While videolaryngoscopes provide improved visualization of the glottis, videoLMA devices can facilitate both airway management and guided intubation.

In this prospective randomized study, 100 patients will be assigned to either videolaryngoscope or videoLMA groups. Standard anesthesia induction will be applied. Intubation time, success rates, hemodynamic responses, and complications will be recorded and analyzed.

• Study Type: Interventional
• Enrollment (Estimated): 100
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Ela Erdem Hidiroglu, MD; Phone Number: +90 534 887 41 84; Email: drelaerdem@gmail.com

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

Adults aged 18 years and older ASA physical status I-III Patients scheduled for surgery requiring endotracheal intubation Ability to provide written informed consent

Exclusion Criteria:

• History of tracheostomy Known or predicted difficult airway Presence of oral mass or tumor Pregnant patients Patients unable to provide informed consent Patients requiring reoperation within 24 hours

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Videolaryngoscope Group; Patients undergoing endotracheal intubation using videolaryngoscope	Device: Videolaryngoscope; Patients undergoing endotracheal intubation using videolaryngoscope
Experimental: VideoLMA Group; Patients undergoing endotracheal intubation using videoLMA	Device: VideoLMA; Patients undergoing endotracheal intubation using videoLMA

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Intubation Time	Time from insertion of the airway device into the patient's mouth until successful placement of the endotracheal tube, confirmed by continuous capnography.	From insertion of the airway device to confirmation of endotracheal tube placement (during anesthesia induction, within approximately 0-5 minutes)

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
First Attempt Success	Successful placement of the endotracheal tube on the first attempt without the need for additional airway maneuvers.	During first intubation attempt (within 0-2 minutes)
Number of Attempts	Total number of attempts required to achieve successful endotracheal intubation.	During intubation procedure (within approximately 0-10 minutes
Oxygen Desaturation	Occurrence of oxygen desaturation defined as peripheral oxygen saturation (SpO₂) below 92% during the intubation procedure.	During intubation procedure (from induction until successful intubation, approximately 0-10 minutes)
Heart rate	changes in heart rate measured at predefined time points	At baseline (pre-induction), immediately after intubation, and at 1, 3, and 5 minutes post-intubation
Postoperative Sore Throat	Presence of sore throat assessed using a standardized patient-reported scale.	At postoperative 1 hour and 2 hours
Hoarseness	Presence of voice changes (hoarseness) assessed based on patient self-report.	At postoperative 1 hour and 2 hours
Complications	Occurrence of airway-related complications including mucosal injury, dental trauma, or esophageal intubation observed during the procedure.	During intubation and intraoperative period (approximately 0-60 minutes)
mean arterial pressure	changes in mean arterial pressure measured at predefined time points	baseline, post intubation,1,3,5 min

Collaborators and Investigators

• Sponsor: Ela Erdem Hıdiroglu
• Investigators: Principal Investigator: Ela Erdem Hidiroglu, MD, Ankara Etlik City Hospital

Study record dates

Study Major Dates

• Study Start (Estimated): April 1, 2026
• Primary Completion (Estimated): May 1, 2026
• Study Completion (Estimated): June 1, 2026

Study Registration Dates

• First Submitted: April 7, 2026
• First Submitted That Met QC Criteria: April 21, 2026
• First Posted (Actual): April 29, 2026

Study Record Updates

• Last Update Posted (Actual): April 29, 2026
• Last Update Submitted That Met QC Criteria: April 21, 2026
• Last Verified: April 1, 2026

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Urogenital Diseases; Male Urogenital Diseases; Urologic Diseases; Female Urogenital Diseases; Female Urogenital Diseases and Pregnancy Complications; Urolithiasis
• Other Study ID Numbers: AEŞH-EK1-2025-296

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No