Correlation of diagnostic systems with adenoidal tissue volume: A blind prospective study § Ismail Yilmaz a, * , Fatma Caylakli a , Cuneyt Yilmazer a , Mesut Sener b , Levent N. Ozluoglu a a Department of Otolaryngology, Baskent University School of Medicine, Ankara, Turkey b Department of Anaesthesiology, Baskent University School of Medicine, Ankara, Turkey Received 29 January 2008; received in revised form 1 May 2008; accepted 2 May 2008 International Journal of Pediatric Otorhinolaryngology (2008) 72, 1235—1240 www.elsevier.com/locate/ijporl KEYWORDS Adenoidectomy; Mirror examination; Nasal endoscopy; Palpation Summary Objectives: To determine the correlation between adenoid tissue volume and three diagnostic methods of deciding whether to perform an adenoidectomy. Methods: The study used 152 patients (mean age, 5.8 Æ 2.5 years; age range, 2—12 years) who underwent an adenoidectomy at our clinic between April 2005 and April 2007. Patients requiring a revision operation and those with a cleft palate were excluded. To estimate the extent to which the adenoid narrowed the choana, an evaluation was made using nasal endoscopy (%), a mirror (%), and palpation (rated from 1 to 5) with the patient in Rose’s position just before surgery. Postadenoidectomy tissue volume was measured (in cm 3 ). The Spearman rank correlation and stepwise linear regression analyses were used to statistically evaluate the data. Results: Nasal endoscopy revealed that the choana was narrowed by the adenoid at an average of 86.6 Æ 13.1% (range, 50—99%). When viewing upward by a mirror, the choana was observed as being narrowed at an average of 44.2 Æ 30.2% (range, 5— 100%). The mean palpation value was 3.2 Æ 1.4 (range, 1—5). The mean volume of adenoidal tissue measured was 1.8 Æ 0.8 cm 3 (range, 0.7—4.5 cm 3 ). Nasal endoscopy was determined to be the best means of checking by the Spearman rank correlation. Mirror (R = 0.64, P <.0001), palpation (R = 0.62, P <.0001), and volume (R = 0.62, P <.0001) were correlated with the nasal endoscopy; however, regression analysis found that only palpation (P = .003) and volume (P <.001) were independent vari- ables affecting the image of nasal endoscopy, mirror inspection (P = .260) was not. § This study was presented as an oral presentation at the XXIXth National Congress of Turkish ORL & HNS in Antalya, Turkey, 26—31 May 2007. * Corresponding author at: Otolaryngology Department, Adana Seyhan Hospital, Baskent University, Baraj yolu 1.durak No. 37 Seyhan, 01110 Adana, Turkey. Tel.: +90 322 458 68 68; fax: +90 322 459 91 97. E-mail address: iy38@yahoo.com (I. Yilmaz). 0165-5876/$ — see front matter # 2008 Elsevier Ireland Ltd. All rights reserved. doi:10.1016/j.ijporl.2008.05.002