Method of the diagnosis of adenoid hypertrophy for physicians: adenoid-nasopharynx ratio.

OBJECTIVE

We aimed to describe the feasibility of a prediction of adenoid hypertrophy by pediatricians for diagnostic accuracy of nasopharyngeal x-ray in a pediatric unit.

METHODS

Forty-six patients with a history of probable adenoid hypertrophy between January 2013 and August 2013 were included in the study. Participants were excluded from the study if they had previous adenoidectomy; anatomic anomaly in the nose, palate, or nasopharynx; and acute infection. Nasal endoscopy was performed and evaluated adenoid size (choanal obstruction ratio) in all patients by an otorhinolaryngologist who was blinded to the information of other data. Lateral nasopharyngeal x-ray graphs of all patients were evaluated by pediatricians with adenoid-nasopharynx (A-N) ratio, who were blinded to the information of other data. The A-N ratio was calculated by Fujioka method. The A-N ratio of each patient was compared with the choanal obstruction ratio that was determined in the nasal endoscopic examination. Spearman correlation test was used for statistical analysis, and P < 0.05 was described as significant.

RESULTS

Forty-six patients were included in this study. The study sample consisted of 25 male (54.3%) and 21 female (45.7%) patients. The mean age of the patients was 6.17 years (range, 2-14 y). In the nasal endoscopic examination, the mean (SD) choanal obstruction ratio was 64.6% (19.5%) (range, 12.5%-90%). Mean (SD) A-N ratio was found to be 16.7 (14.4). The A-N ratio correlated with nasal endoscopic examination findings (r = 0.334, P = 0.023)

CONCLUSIONS

The A-N ratio was found to be a useful, tolerable, and confident diagnostic method in pediatric patients for adenoid hypertrophy. Pediatricians can confidently use this method for decision after follow-up or operation.