Contemporary Management of Patulous Eustachian Tube: A Narrative Review of Current Evidence and Future Directions

Patulous Eustachian Tube (PET) is a rare otologic disorder, which is caused by abnormal patency of the Eustachian tube. Rapid weight loss is a recognized predisposing factor for PET potentially because of the reduction in peritubal adipose tissue that contributes to normal tubal closure. Although there is increasing awareness of this association, the best treatment of PET is still debated with several conservative, medical and surgical operations reported in the literature. This narrative review summarizes the available evidence regarding conservative, medical, minimally invasive, and surgical management of PET, with particular consideration of PET associated with rapid weight loss. Relevant literature was identified through searches of PubMed/MEDLINE, Embase, Web of Science, and the Cochrane Library, with attention to studies using standardized diagnostic criteria and outcome measures. Conservative approaches, including hydration, nasal saline instillation, and behavioral modifications such as cessation of habitual sniffing, have been associated with symptomatic improvement and considered as initial options because of their accessibility and low procedural burden. Medical therapies, such as topical irritants, estrogen-based preparations, and mucosal-thickening agents, may provide temporary symptom relief, although their long-term effects require further evaluation. Among interventional strategies, silicone (Kobayashi) plug insertion has demonstrated encouraging symptom improvement and reductions in symptom scores in selected patients with refractory PET. Minimally invasive techniques, including autologous fat injection, cartilage augmentation, and soft tissue bulking procedures, have also demonstrated encouraging outcomes. Trans-tympanic interventions, including ventilation-tube insertion and catheter-based techniques, provided additional options with variable reported outcomes. Management of PET remains heterogeneous and largely individualized. Conservative and medical therapies are considered reasonable first-line options, while surgical and minimally invasive approaches may be considered for selected patients with persistent symptoms.