Successful Closure of a Tracheoesophageal Fistula Using an Over-The-Scope Clip.

A tracheoesophageal fistula (TEF) is a pathological connection between the trachea and esophagus, which can either occur congenitally or be acquired. An acquired TEF may occur secondary to malignancy, chemoradiotherapy, infection, or trauma. Hallmark symptoms typically associated with TEF include choking with food intake, productive cough, pneumonia, or failure to thrive. The management of TEF has predominantly involved surgical or endoscopic intervention such as esophageal or airway stenting, suturing, or ablation. More recently, the endoscopic over-the-scope clip (OTSC) has emerged as an effective method of TEF management. The OTSC grasps the mucosa overlaying lesion and seals the defect, thus making it an effective treatment option for the endoscopic closure of various GI defects such as fistulas, bleeding ulcers, and perforations. We report a case of a TEF, acquired secondary to underlying malignancy, and its successful treatment with the use of an OTSC placement. A 79-year-old female with a significant history of diffuse large B-cell lymphoma (DLBCL) currently undergoing chemotherapy was admitted to the hospital for aspiration pneumonia. She presented with persistent productive cough and subsequent limited oral intake ability while initially presenting for DLBCL six months prior with an enlarging right-sided neck mass. Her positron emission tomography-computed tomography (PET-CT) imaging showed a cavitary lesion in the superior mediastinum with increased fluorodeoxyglucose (FDG) lymphatic uptake. She had an esophagogram followed by an esophagogastroduodenoscopy (EGD), due to aspiration concerns, which demonstrated a fistula site with tracheal secretions about 20 cm from the incisors. An OTSC was used to close the esophageal opening and successful closure was confirmed using real-time fluoroscopic imaging by the unimpeded passage of contrast in the stomach without leakage. At follow-up, she was able to tolerate an oral diet without any significant difficulty or symptom recurrence. We present a case of successful endoscopic management of TEF with an OTSC that resulted in immediate fistula closure and improvement in the patient's quality of life. This particular case highlights the ability of OTSC to provide more durable and long-term closure than other management techniques due to its mechanism of grasping more tissue for approximation and its association with less morbidity compared to alternative surgical interventions. Although previous reports describing the technical feasibility and utility of OTSC in TEF repair support its use, there is still a paucity of data exploring the long-term efficacy of OTSC in TEF management; therefore, additional prospective studies are necessary.