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Table 1 Score for semi quantitative evaluation of the endoscopic images of the nasopharyngeal orifice of the ET

From: Stenting the Eustachian tube to treat chronic otitis media - a feasibility study in sheep

Criteria Endoscopic score value
  None Mild Moderate Severe
Quality of mucus 0 1 2 3
Opening degree of n. orificea 0 1 2 3
Inflammatory erythema 0 1 2 3
Inflammatory swelling 0 1 2 3