The use of videofluoroscopy in the assessment of the pharyngeal airway in obstructive sleep apnoea.

نویسندگان

  • Ama Johal
  • Zahra Sheriteh
  • Joanna Battagel
  • Claire Marshall
چکیده

This prospective cohort study evaluated the use of videofluoroscopy in assessing changes in both antero-posterior (A-P) and transverse pharyngeal airway dimensions in patients with obstructive sleep apnoea (OSA). Forty patients [32 males and 8 females; mean age of 49.3 (SD = 10.79) years] with confirmed OSA, referred for mandibular advancement appliance (MAA) therapy were recruited. Patients received a customized Herbst MAA, adjusted for maximum comfortable protrusion. A standard lateral cephalogram, supine A-P, and transverse videofluoroscopic investigations were performed. Repeat supine videofluoroscopic investigations were undertaken with the MAA in situ. Parametric tests were used to evaluate the study hypotheses as the data were normally distributed. A paired t-test was employed to determine both the impact of posture on the airway using upright cephalometry and supine videofluoroscopy and the effect of MAA insertion on A-P and transverse pharyngeal airway dimensions. Following a change in posture from upright to supine, highly statistically significant (P < 0.001) changes were observed for all lateral pharyngeal dimensions. Statistically significant increases in minimum lingual airway (P < 0.001) and maximum transverse pharyngeal airway (P < 0.001) were found following MAA insertion. A reduction in soft palate area (P = 0.029) and pharyngeal height (P < 0.001) was also noted. Videofluoroscopy offers a useful dynamic assessment of the pharyngeal airway in both the A-P and transverse planes in patients with OSA.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Sleep. 2: pathophysiology of obstructive sleep apnoea/hypopnoea syndrome.

The pathogenesis of airway obstruction in patients with obstructive sleep apnoea/hypopnoea syndrome is reviewed. The primary defect is probably an anatomically small or collapsible pharyngeal airway, in combination with a sleep induced fall in upper airway muscle activity.

متن کامل

Acute effects of obstructive sleep apnoea.

The pharyngeal airway narrows when pharyngeal muscle tone decreases. During sleep, partial collapse at this level leads to snoring, and complete collapse to obstructive sleep apnoea [25], Such upper airway incompetence is relatively common: 17% of randomly selected normal British men snore [60]; one in 300 have severe obstructive sleep apnoea and cannot maintain a patent airway in any sleeping ...

متن کامل

Relationship between body mass index, age and upper airway measurements in snorers and sleep apnoea patients.

Anatomical pharyngeal and craniofacial abnormalities have been reported using upper airway imaging in snorers with or without obstructive sleep apnoea (OSA). However, the influences of the age and weight of the patient on these abnormalities remain to be established. The aim of this study was, therefore, to evaluate in a large population of snorers with or without OSA, the relationship between ...

متن کامل

Pharyngeal narrowing in end-stage renal disease: implications for obstructive sleep apnoea.

Sleep apnoea is common in patients with end-stage renal disease (ESRD). It was hypothesised that this is related to a narrower upper airway. Upper airway dimensions in patients with and without ESRD and sleep apnoea were compared, in order to determine whether upper airway changes associated with ESRD could contribute to the development of sleep apnoea. An acoustic reflection technique was used...

متن کامل

Effects of tongue electrical stimulation on pharyngeal mechanics in anaesthetized patients with obstructive sleep apnoea.

The tongue plays a significant role in the maintenance of a patent airway. The purpose of this study was to examine the effects of tongue musculature contraction on the static mechanical properties of the pharynx in patients with obstructive sleep apnoea (OSA). During hyperventilation-induced apnoea in seven OSA patients anaesthetized with sevoflurane, the static pressure/area relationships of ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • European journal of orthodontics

دوره 33 2  شماره 

صفحات  -

تاریخ انتشار 2011