Effect of Different Positions of the Head on Tympanometry Results: An Exploratory Study
Journal Title: Bengal Journal of Otolaryngology and Head Neck Surgery - Year 2017, Vol 25, Issue 1
Abstract
IntroductionTympanometry is an objective measure of middle ear function that has been an integral part of the audiological evaluation test battery, for nearly three decades. The parameters of the tympanogram obtained are influenced with many factors such as introduction of positive or negative air pressure, speed of recording tympanogram, etc. This study was aimed to explore the influence of head positioning on tympanometric findings in normal ears.Materials and Methods Thirty ears of fifteen normal hearing subjects (mean age 22.8 years) and five ears of subjects (mean age 23 years) with high negative middle ear pressure were selected for the study. Tympanometry was done in four postures: head erect, head bent forward (chin touching the chest), head in supine and head lateralized towards one side.ResultsTwo different results were obtained. It was interesting to note that the results significantly changed when the tympanogram was recorded after ten minutes in different head positions compared to those taken immediately after changing the head position.DiscussionThe possible explanation for the effect of duration in different head positions on tympanogram is discussed.ConclusionNo significant changes were observed on static compliance, middle ear pressure, ear canal volume and pressure gradient when the tympanogram were recorded immediately bringing head in the particular posture. When head was held in the changed position for ten minutes, significant reduction in the pressure gradient was observed. Further extensive studies may be required to document the relationship between head positioning and tympanometric results.
Authors and Affiliations
Indranil Chatterjee, Rabi Hembram, Arpita Shahi, Ashok Sinha
Keywords
Related Articles
- EP ID EP433951
- DOI -
- Views 64
- Downloads 0
A Novel Technique of Using Sponge as Post-Operative Nasal Packing
IntroductionIn an effort to find a comparable but less expensive nasal pack with the qualities of MerocelR,this study was aimed at comparing the clinical efficacy and patient comfort level, while simultaneously using Mer...
Noise Induced Hearing Loss with Tinnitus: Does TRT Help?
IntroductionTo determine if hearing augmentation and tinnitus retraining therapy (TRT) helps in cases of Tinnitus with Noise induced hearing loss (NIHL) and does degree of hearing loss, severity or duration of tinnitus a...
Evaluation of Diagnostic Criteria for AFRS: A Hospital Based Study
IntroductionBent and Kuhn criteria are the most commonly accepted diagnostic criteria for diagnosis of Allergic Fungal Rhinosinusitis. Other diagnostic criteria for the diagnosis of Allergic Fungal Rhinosinusitis include...
Near Complete Laryngopharyngeal Obstruction due to Vegetable Foreign Body in an Infant
Introduction Impaction of foreign bodies and obstruction in the upper aero-digestive tract is a medical emergency.Case Report A 5-month-old male infant presented with impacted large vegetable foreign body lying in the hy...
Comparative Study of Infiltration of Lidocaine with Adrenaline versus Sterile Water in Type 1 Tympanoplasty Performed under General Anaesthesia
Introduction It is a common practice to infiltrate 2% lignocaine with 1:2,00,000 adrenaline for Type 1 Tympanoplasty, even when the surgery is done under general anaesthesia. The purpose of this study is to evaluate the...