Comparison of Weight-based Versus External Ear-size Based Technique for Selection of Laryngeal Mask Airway in Pediatric Surgical Patients.

Summary

Laryngeal Mask Airway (LMA) is widely used in pediatric surgical patients. The manufacturer recommends the size of LMA to be used in children should be based on actual body weight but this method has several limitations. To overcome these concerns, various alternatives have been tried by different researchers, one of them is external ear size for LMA size selection. Investigators therefore would like to know whether the external ear size based method can be used for LMA size selection in pediatric surgical patients in Pakistan.

Conditions

• Laryngeal Masks
• Minors
• Child
• Pediatrics

Interventions

DEVICE

Ear Size Based Method (Ambu® AuraOnce™ Laryngeal Mask Airway)

The Laryngeal Mask Airway (LMA) is one of the devices used to maintain airway during general anesthesia. Its appropriate size is selected according to patients body weight as recommended by the manufacturer. However its appropriate size can also be selected via several other methods and one of them is patients external ear size. In this study the investigators will compare external ear size based method for LMA selection with the standard weight based method for LMA size selection. Vertical Ear length: will be measured from the most dependent portion of the lobule to the furthest portion of the auricle. Horizontal Ear length (width): from the tragus to the furthest part of the helix horizontally. Dimension(cm2): Vertical length (L) × Horizontal length (width-W) LMA Size LMA Cuff Length (cm) corresponding to vertical ear length. LMA Cuff Width (cm) corresponding to horizontal ear width.

Sponsors & Collaborators

• Aga Khan University

  lead OTHER

Principal Investigators

• Muhammad Qamarul Hoda, FCAI · The Aga Khan University Hospital, Karachi, Pakistan.

• Muhammad Asghar Ali, FCPS · The Aga Khan University Hospital, Karachi, Pakistan.

• Hameed Ullah, FCPS · The Aga Khan University Hospital, Karachi, Pakistan.

• Samie Asghar Dogar, FCPS · The Aga Khan University Hospital, Karachi, Pakistan.

• Muhammad Saad Yousuf, FCPS · The Aga Khan University Hospital, Karachi, Pakistan.

• Bushra Salim, FCPS · The Aga Khan University Hospital, Karachi, Pakistan.

Study Design

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

TRIPLE

Model

PARALLEL

Eligibility

Min Age

6 Months

Max Age

18 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2019-12-11

Primary Completion

2024-05-01

Completion

2024-06-15

Countries

• Pakistan

Study Locations