Abstract

Abstract Aim Tracheoesophageal fistula (TEF) recurrence is a frequent but challenging complication after esophageal atresia (EA) repair. Although most recurrent TEFs are commonly seen at the original fistula site, long new fistulas localized differently from the congenital TEF sites are called acquired TEFs (acq-TEF). Acq-TEFs are long new fistulas with unusual locations, including fistulas from the esophagus to anywhere on the airway such as the bronchus, trachea, or lung parenchyma. Herein, we aimed to discuss diagnostic and management challenges in different localizations of acquired TEF. Methods The medical records of patients admitted with acq-TEF in the last 5 years were retrospectively evaluated. The demographic features, admission complaints, physical and radiological findings, TEF localization and management were recorded. Results From 16 TEF recurrences, 4 TEFs were acquired fistulas. Admission age ranged from 3 months to 8 years. The female/male ratio was 2/2. The complaints were recurrent respiratory tract infections, choking, and coughing in all cases. Three of the cases had proximal EA + distal TEF; the other case was isolated EA. Primary repair was performed in 3 cases and colon interposition was performed in 1 case. Anastomotic leak and mediastinitis after initial operation were seen in 3 cases. Three acq-TEFs were to the cervical part of the trachea, one was from the colon conduit to the trachea, one was to right bronchus by passing through the intrathoracic abscess cavity, and one was directly to the right bronchus. In all cases the TEFs were shown in sine-esophagography and confirmed with bronchoscopy during operation. TEF was repaired by thoracotomy incision in 3 cases and callor incision in 1 case. The second acq-TEF of Case 1 was closed spontaneously. Muscle flap or pleura was placed between suture lines in all cases. All TEFs were confirmed to be closed with esophagography in all cases at postoperative period. Conclusion Acq-TEF is mostly seen secondary to local or diffuse mediastinitis. Besides its classical location of TEF, acq-TEFs may be seen at unusual rare localizations such as esophagus to right bronchus, esophagus to abscess cavity, and conduit to trachea. They cause both diagnostic and surgical challenge. Clinicians should be aware of these different localizations of Acq-TEFs in order to evaluate and manage these patients more comprehensively.

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