Danish cohort study of tympanic membrane retractions and manifestations of Eustachian tube dysfunction
Dennis Friis Jensen1, Louise Hill-Madsen1, Niels H Holm1
1Department of Otorhinolaryngology, Head and Neck Surgery University Clinic for Flavour, Balance, and Sleep, Region Hospital Gødstrup Herning Denmark.
Objectives:
Our objective is to evaluate the prevalence of tympanic membrane (TM) retractions and management of signs of Eustachian tube dysfunction (ETD) in both children and adults following type 1 tympanoplasty or myringoplasty. Furthermore, to identify potential risk factors for developing ETD and TM retractions.
Methods:
Retrospective cohort study of 423 patients (5-86 years of age) undergoing 452 procedures. We extracted data from electronic patient journals during scheduled consultations to calculate prevalences and relative risks. The project was reported to the Danish Data Protection Authority, and access to electronic patient journals was approved by the Institutional Board of Gødstrup Hospital.
Results:
At 1 year postoperative follow-up, the prevalence of TM retractions was 12.7% and ETD manifestations without a concurrent TM retraction was 4.2%. The graft failure rate was 11.0%. Risk factors for developing TM retractions included preoperative myringosclerosis, history of ipsilateral ear surgery, posterior perforations, and use of perichondrium graft. Conversely, previous contralateral ear surgery and temporal fascia graft use were associated with decreased risk. ETD manifestations were significantly increased in cases of preoperative bilateral perforation, history of ipsilateral ventilation tube, and traumatic TM perforation.
Conclusions:
TM retractions accounted for 12.7%, ETD manifestations without a concurrent TM retraction 4.2%, and graft failure 11.0%. The dynamic nature of these complications necessitates diligent follow-up strategies.
Level Of Evidence:
Level 4.
