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Comparative study between two different approaches of Ultrasound guided Superior Laryngeal Nerve Block for Awake Fiberoptic Intubation in patients with anticipated difficult airway who are undergoing surgeries under general anaesthesia

Parasagittal versus Transverse approach of Ultrasound-guided Superior Laryngeal Nerve Block for Awake Fiberoptic Intubation: a randomised controlled trial - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2025/08/093161
Enrollment
76
Registered
2025-08-18
Start date
Unknown
Completion date
Unknown
Last updated
2025-09-15

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

Conditions

Health Condition 1: O- Medical and Surgical

Interventions

Intervention1: Ultrasound-guided Superior Laryngeal Nerve Block in awake Fiberoptic Intubation: Parasagittal versus transverse approach of ultrasound-guided Superior Laryngeal Nerve Block for awake Fi

Sponsors

Kalinga Institute of Medical Sciences
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1. Patients with anticipated difficult airway requiring Fiberoptic intubation 2. Patients weighing 45-80 kgs 3. ASA (American Society of Anaesthesiologists) grade I or II 4. Anticipated difficult airway which includes: limited movement of cervical vertebrae, airway insufficiency/ obstruction, maxillofacial deformity or trauma, small mandibular or mouth opening of less than 3 cms, modified Mallampatti class III or IV

Exclusion criteria

Exclusion criteria: 1. Patient refusal 2. Patients with infection at puncture site 3. Patients with allergy to local anaesthetic drugs 4. Patients on antiplatelet therapy 5. Patients having bleeding or coagulation disorder

Design outcomes

Primary

MeasureTime frame
To assess the quality of airway anesthesia will be assessed, just during intubation, based on a 5 point scale of coughing and /or gagging response, by an observer, who is blinded to the technique of blockTimepoint: During endotracheal intubation—

Secondary

MeasureTime frame
1. Tube tolerance score 2. Mean arterial pressure (MAP) & Heart rate (HR) 3. Ramsay sedation score 4. Incidence of sore throat 5. Incidence of hoarsenessTimepoint: 1. Tube tolerance score: just after intubation 2. MAP & HR at different time points: on entering the operation room (T0), immediately before endotracheal intubation (T1), immediately after endotracheal tube insertion into glottis (T2), 5 mins after intubation (T3) 3. Ramsay sedation score: during intubation & immediately after intubation 4. Incidence of sore throat: 1 hour & 24 hours after extubation 5. Incidence of hoarseness: before intubation, 1 hour & 24 hours after extubation—

Countries

India

Contacts

Public ContactDr. Laba Kumar Nayak

Kalinga Institute of Medical Sciences and Pradyumna Bal Memorial Hospital

labakumar.nayak@kims.ac.in9439014811

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026