The Prevalence of Hearing Symptoms Associated With Patulous Eustachian Tube Dysfunction Following Bariatric Surgery at King Khalid University Hospital, Saudi Arabia.

Abstract

Background A patulous Eustachian tube (PET) is defined as a persistent tubal opening, which affects 0.3-6.6% of the population, with a female preponderance. PET is caused by the loss of subcutaneous adipose tissue enclosing the cartilaginous portion of the Eustachian tube (Ostmann's pad) as a result of acute, rapid, and substantial loss of weight which occurs during bariatric surgery. The most common complaint of PET is autophony, in which patients hear their own voices or breaths, with additional symptoms including crackling sounds, tinnitus, and aural congestion. In this study, we aimed to determine the prevalence of symptoms associated with PET dysfunction subsequent to bariatric surgery at King Khalid University Hospital (KKUH). Methodology A cross-sectional study was conducted at KKUH, Saudi Arabia. The presence of symptoms consistent with the diagnosis of PET dysfunction was assessed through in-person and telephonic interviews of bariatric surgery patients using a standardized questionnaire. Results A total of 450 patients were evaluated. The preoperative body mass index (BMI) of evaluated patients ranged from 28 to 117 kg/m2 (mean = 46.07 kg/m2), with no significant difference between symptomatic and asymptomatic groups (p = 0.303). The postoperative BMI ranged from 16 to 100 kg/m2 (mean = 29.37 kg/m2), with no significant difference between symptomatic and asymptomatic groups (p = 0.263). Hypertension was the most prevalent comorbid condition (12.2%), followed by diabetes (9.3%). In total, 91 (20.22%)patients exhibited symptoms (aural fullness and autophony) compatible with patent auditory tube dysfunction. Conclusions Overall, 20.22% of the bariatric surgery patients in our study sample displayed symptoms consistent with patulous auditory tubal dysfunction. The preoperative and postoperative BMI of symptomatic and asymptomatic patients did not differ significantly. To improve patient outcomes and satisfaction following bariatric surgery hearing symptoms associated with PET need to be included in postoperative follow-ups after bariatric surgery.