A semiquantitative way to measure MUAC in anaesthesia

Area of Science:

• Pediatrics
• Global Health
• Anesthesiology

Background:

• Malnutrition in children poses significant risks for anesthetic management, impacting fluid balance, cardiac function, and nutritional support.
• Mid-upper arm circumference (MUAC) is a critical anthropometric measure for assessing severe malnutrition in pediatric patients.
• The frequent unavailability of standard measuring tapes presents a challenge for routine MUAC assessment in resource-limited settings.

Purpose of the Study:

• To develop and validate a readily available, accurate, and cost-free method for estimating MUAC in children.
• To assess the feasibility of using a simple 'one grip' technique with gauze bandages for MUAC estimation.
• To determine the accuracy and acceptability of this novel method for identifying malnourished children.

Main Methods:

• A study involving 262 volunteers from four professional groups was conducted.
• Participants received brief (5-10 minute) training on estimating arm circumference using their fingers and gauze bandages.
• The accuracy of the 'one grip' method was evaluated by comparing estimations to actual measurements and assessing correct identification of simulated upper arm sizes.

Main Results:

• Over 91% of estimations were correct, and 97.2% were acceptable for identifying malnourished children.
• Approximately 90% of participants could accurately identify severely malnourished children using the trained method.
• The method demonstrated high accuracy in identifying both malnourished and well-nourished children, with minimal contradictory decisions.

Conclusions:

• A semiquantitative 'one grip' MUAC measurement using gauze bandages is a feasible, accurate, and free alternative when measuring tapes are unavailable.
• This method requires minimal training and can effectively alert healthcare providers to potential malnutrition in children.
• Training healthcare professionals in developing countries on this simple technique can improve the identification and management of malnourished children.