Modification of the Laerdal MegaCode Kid Mannequin Head to Simulate Aspiration of Peritonsillar Abscess

Abstract

Objectives:

(1) Validate a low-fidelity mannequin model engineered to teach drainage of peritonsillar abscesses. (2) Pilot this mannequin model in instructing incoming otolaryngology residents on drainage of peritonsillar abscesses.

Methods:

A peritonsillar abscess (PTA) simulator was constructed through modification of the Laerdal MegaCode Kid Mannequin head using inexpensive components. Tonsils were constructed from Dermasol, and the peritonsillar abscess was simulated by placing a balloon filled with a mixture of water and body lotion behind the appropriate soft palate region. A feedback electrode was placed behind this to create an audible buzz if the needle went too far, simulating entrance into the carotid artery. The model was validated by a panel of experts through survey, and subsequently used to teach PTA drainage to PGY2 otolaryngology residents.

Results:

The expert panel unanimously agreed that they would use the device to teach PTA drainage to trainees. The model was then used to instruct a novice group (N = 6). The majority of this novice group reported that the session was a vital part of their training experience, and it was important to practice drainage of a PTA on a mannequin.

Conclusions:

We validated a mannequin task trainer for drainage of peritonsillar abscesses and successfully implemented it into a teaching session. Given the frequency of presentation of PTA, the need to become competent in the procedure early in residency, and the success demonstrated using our model, we believe the model could be inexpensively replicated at other institutions for more safely and effectively teaching the procedure.