RT Journal Article
SR Electronic
T1 Ultrasound measurement of anterior neck soft tissue thickness and its correlation with obstructive sleep apnea
JF European Respiratory Journal
JO Eur Respir J
FD European Respiratory Society
SP P2214
VO 44
IS Suppl 58
A1 Rene Franco-Elizondo
A1 Shweta Gupta
A1 Jorge Mora
A1 Ganesan Murali
A1 Arshad Wani
YR 2014
UL http://erj.ersjournals.com/content/44/Suppl_58/P2214.abstract
AB Background: Excessive fat tissue deposition anterolaterally to the upper airway has been identified as a contributing factor to the development of OSA.1Objective: To explore the relationship of soft tissue thickness of the anterior neck, measured by ultrasonound, with the presence and severity of OSA.Study and Methods: Cross-Sectional Study. Ultrasound measurements of anterior neck thickness at the vocal cords(VC), thyroid isthmus(TI) and suprasternal notch(SN) were assessed in 106 patients in both supine and sitting positions. BMI, Neck circumference (NC) and Modified Mallampati score (MM) were obtained. All patients underwent a one-night polysomnogram where presence and severity of OSA were determined.Results: Ultrasound measurements of the anterior neck thickness at all levels were found to be positively correlated with AHI both in supine and sitting positions(table 1).View this table:Table 1. Correlations Between Ultrasound Measurements and AHIIn a multivariate linear regression analysis, anterior neck thickness at the level of the TI measured during supine(22.85 +/-9.41, 95% CI 4.18-41.51; p=0.017) and sitting (18.81 +/-8.29, 95% CI 2.36-35.26; p=0.025) positions remained positively and significantly correlated with AHI after correcting for age, BMI, NC, MM and gender.Conclusions: In our study group, ultrasound measurement of anterior soft tissue thickness at the level of the thyroid isthmus appears to be positively correlated with AHI.References: 1. Mortimore I.L. et al.AJRCCM 1998;157:280–3.