Comparing fiberoptic and direct laryngoscopy for safer anesthesia induction

Asleep Fiberoptic vs Direct Laryngoscopy Effect on Hemodynamic Stability Using Opioid Free Anesthesia Induction

NA · American University of Beirut Medical Center · NCT06487988

This study tests whether using a fiberoptic method for putting people to sleep for surgery leads to better heart and blood pressure stability compared to the standard direct method.

Quick facts

PhaseNA
Study typeInterventional
Enrollment90 (estimated)
Ages18 Years to 55 Years
SexAll
SponsorAmerican University of Beirut Medical Center (other)
Locations1 site (Beirut)
Trial IDNCT06487988 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to evaluate the hemodynamic stability, specifically blood pressure and heart rate, during intubation using either fiberoptic or direct oral methods with opioid-free anesthesia. It will involve 90 adults aged 18 to 55 years who are scheduled for elective surgeries under general anesthesia. Participants will be randomly assigned to one of the two intubation techniques, and the study will also assess the time taken for intubation and the occurrence of postoperative complications such as sore throat and hoarseness. The goal is to determine if fiberoptic intubation results in less hemodynamic instability compared to direct laryngoscopy.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 55 years, classified as ASA physical status I or II, and scheduled for elective surgery under general anesthesia.

Not a fit: Patients with a history of cardiovascular or lung diseases, hypertension, or those with predicted difficult airways may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to safer anesthesia practices with reduced cardiovascular risks during intubation.

How similar studies have performed: Limited studies have compared hemodynamic stability between fiberoptic and direct intubation in opioid-free anesthesia, making this approach relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* ASA (American Society of Anesthesiologists) physical status I and II
* Range age of 18-55 years' old
* Scheduled for elective surgery under general anesthesia.

Exclusion Criteria:

* History of cardiovascular diseases.
* History of lung disease.
* Hypertensive patient (BP\> 140/90)
* Patient taking medications that affect blood pressure and heart rate
* Morbid obesity (BMI \>30)
* Severe GERD
* Predicted difficult airway (Short TMD \<6 cm, Upper li bite test grade III, Mallampati score

  \>III)
* Neck instability
* Patient planned to receive rapid sequence intubation
* Patient refusal to participate
* History of difficult intubation/ ventilation

Where this trial is running

Beirut

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Analgesics, Opioid, Anesthesia, General, Heart Rate, Blood Pressure

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.