Dr Ronald Chin’s Explanation of the House-Brackmann Facial Nerve Grading System
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Dr Ronald Chin’s Explanation of the House-Brackmann Facial Nerve Grading System

Dr Ronald Chin’s Explanation of the House-Brackmann Facial Nerve Grading System

The system consists of six grades: Normal, Mild dysfunction, Moderate dysfunction, Moderately severe dysfunction, Severe dysfunction, and Total paralysis. These grades help evaluate the overall condition of the facial nerve.

To determine the grade, you have to judge three factors: gross functions, resting appearance, and dynamic appearance. Gross functions refer to the ability to perform everyday facial movements, such as closing the eyes, smiling, or raising the eyebrows. Resting appearance refers to the face at rest, assessing any asymmetry or drooping. Dynamic appearance refers to the facial movements made while performing specific actions.

By observing these factors, you can assess the degree of dysfunction in the facial nerve and assign an appropriate grade.

Glue ear, after draining the ear drum

Glue ear, intact ear drum

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