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Comparison of two breathing devices mainly Blockbuster LMA and I-gel used during planned surgeries under general anesthesia, to see how well they work when patients head and neck are placed in different positions

Comparison of two Supraglottic airway devices for efficacy of ventilation in different head and neck positions in patients undergoing elective surgery under general anesthesia - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2025/09/094048
Enrollment
94
Registered
2025-09-01
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: Blockbuster LMA for efficacy of ventilation in different head and neck positions in patients undergoing elective surgery under general anaesthesia: Comparison of blockbuster LMA with i-

Sponsors

VMMC and Safdarjung Hospital
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: All patients in the age group of 18-65years of either gender belonging to ASA I-II undergoing elective surgery under general anaesthesia

Exclusion criteria

Exclusion criteria: 1. Patients with anticipated difficult airway 2. Pathology of neck and cervical spine 3. Body mass index more than 35kg per meter square 4. Intrinsic lung disease 5. Patients at high risk of aspiration

Design outcomes

Primary

MeasureTime frame
To compare oropharyngeal seal pressure of Blockbuster Laryngeal Mask Airway with i-gel in different head and neck positions in patients undergoing elective surgery under general anaesthesiaTimepoint: Oropharyngeal seal pressure will be noted in neutral position and after 1 minute of each position change of head and neck such as 20 degree flexion, maximum extension and maximum right lateral position—

Secondary

MeasureTime frame
To compare the following insertion characteristics of Blockbuster laryngeal mask airway with i-gel in patients undergoing elective surgery under general anaesthesia 1. Number of attempts taken for successful insertion of device 2. Time for achieving effective ventilation 3. Anatomical alignment of device with glottis opening ( Brimacombe score), Peak Inspiratory Pressure (PIP), Leak percent, OSP-PIP and ventilation score in different head and neck positionsTimepoint: Each parameters will be noted in neutral position and after 1 minute of each position change of head and neck—

Countries

India

Contacts

Public ContactDr Nidhi Agrawal

VMMC and Safdarjung Hospital

nidhi.agrawal1970@gmail.com9811030408

Outcome results

None listed

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