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Comparison of the LMA BlockBuster with LMA Protector as a conduit for blind endotracheal intubation in patients undergoing elective surgery under general anaesthesia

Not yet recruiting
Conditions
Medical and Surgical,
Registration Number
CTRI/2022/12/047958
Lead Sponsor
Departmen of Anaesthesia,Lady hardinge medical college
Brief Summary

The supraglottic airways (SGA) are frequently used as the primary device to secure the airway in elective surgeries as well as in recognized difficult airway cases. The SGA can also be used as a rescue device, for restoring oxygenation and ventilation while allowing time to prepare for other airway manoeuvres. The SGAs can also be used as a conduit for tracheal intubation, this technique has been recommended by the Difficult Airway Society (DAS) for difficult airway management . Intubation through these devices is also recommended in the ‘All India Difficult Airway Association’ guidelines . It is also recommended that the intubation through SGAs be done under fibreoptic bronchoscope (FOB) guidance. However, this requires the availability of a FOB and expertise in its use, which may not be possible many times, particularly in the emergency situations managed by residents. Therefore, the new SGAs designed to facilitate blind tracheal intubation are gaining popularity as a bridge connecting ventilation and intubation in all genres of patients.

The BlockBusterâ„¢Laryngeal Mask, invented by professor Ming Tian in 2012 has been recently launched in the Indian market and is designed primarily to provide a green channel for the smooth passage of cuffed tracheal tube for blind tracheal intubation .

The Laryngeal Mask Airway® (LMA) Protectorâ„¢ Airway (Teleflex Medical Europe, Westmeath, Ireland) was first used in clinical practice in 2015. It is made of medical-grade silicone with two large volume gastric drainage channels and integrated with a cuff pressure indicator, the Cuff Pilotâ„¢ . The easy insertion is attributed to its fixed-curved structure, and its wide internal airway lumen diameter (up to 13 mm) which allows flexibility and thereby enhancing its use as an intubation conduit.

Blind intubation through an SGA can be lifesaving in cases of difficult airway. The technique should however be perfected first in patients with normal airways. Considering the limited availability of FOB in emergency situations, the new SGAs designed to facilitate blind tracheal intubation like the BlockBusterTM Laryngeal Mask and LMA® ProtectorTM Airway are gaining popularity. There is very limited published data comparing the first pass success rate of blind endotracheal intubation through the BlockBusterTM Laryngeal Mask with LMA® ProtectorTM Airway in patients undergoing elective surgery under general anaesthesia. Therefore, we planned this study to compare the first pass success rate of blind endotracheal intubation through both these devices. The ease, number of attempts and time taken for the placement of SGA, number of attempts, manoeuvres required and time taken to intubate through the SGA and complications will also be compared using the BlockBusterTM Laryngeal Mask with LMA® ProtectorTM Airway.

Detailed Description

Not available

Recruitment & Eligibility

Status
Not Yet Recruiting
Sex
All
Target Recruitment
130
Inclusion Criteria

Patients undergoing elective surgery under general anaesthesia and requiring endotracheal intubation.

Exclusion Criteria

1.Anticipated difficult airway 2.Upper respiratory tract infection and severe pulmonary disease 3.BMI > 35 Kg/m2 4.Mouth opening < 2 cm 5.Risk of regurgitation and aspiration (GERD, hiatus hernia, non fasting status) 6.Pregnancy.

Study & Design

Study Type
Interventional
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
The proportion of patients having successful blind endotracheal intubation through BlockBuster™ Laryngeal Mask or through LMA® Protector™ Airway in the first attempt.From induction of general anaesthesia to 4 hours post operative period
Secondary Outcome Measures
NameTimeMethod
Proportion of patients with successful SGA placementMean time for placement of SGA

Trial Locations

Locations (1)

Lady Hardinge Medical College

🇮🇳

Central, DELHI, India

Lady Hardinge Medical College
🇮🇳Central, DELHI, India
NAVNEETH NAKSHATRI
Principal investigator
8527585356
drnavneethnakshatri@gmail.com

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