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Journal Article
Review
Management of aero-digestive fistulas in adults: the bronchoscopist's perspective.
Mediastinum 2023
Aero-digestive fistulas (ADFs) are pathologic connections between the airways and gastrointestinal system. These most commonly occur between the central airways and esophagus. Fistulas may develop congenitally or be acquired from a benign or malignant process. Most fistulas presenting in adulthood are acquired, with similar rates of benign and malignant etiologies. Symptoms may severely impact a patient's quality of life and result in dyspnea, cough, and oral intolerance. ADFs have been associated with increased mortality, often related to pneumonias and malnutrition. Management is multifaceted and includes a multidisciplinary approach between the pulmonologist, gastroenterologist, and thoracic surgeon. While definitive management can be achieved with surgery, this is typically reserved for benign causes as surgical repair is often impractical in patients with advanced malignancies. With malignant causes, less invasive endoscopic and/or bronchoscopic interventions may be indicated. Stenting is the most common non-surgical invasive intervention performed. Stents can be placed in the esophagus, airway, or both. There is limited data that suggests outcomes may be better when esophageal stenting is performed with or without airway stenting. Airway stents are indicated when there is airway compromise, inadequate sealing of the fistula with an esophageal stent alone, or when an esophageal stent cannot be placed. This review will provide an overview of approaching ADFs from the bronchoscopist's perspective.
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