Residual tracheal pouch after repair of tracheaoesophageal fistula: endoscopic KTP laser treatment

Long-term Airway Outcomes and Interventions in Children With Oesophageal Atresia With Tracheoesophageal Fistula: A 20-year Single Centre Observational Study

BACKGROUND

Airway anomalies, symptoms and interventions are commonly reported in children with oesophageal atresia with tracheoesophageal fistula (OA/TOF). The purpose of this study was to assess the incidence of these airway pathologies and those requiring interventions in the long-term.

METHODS

A retrospective case note review of all patients admitted to the Neonatal Unit at the Royal Hospital for Children, Glasgow between January 2000 and December 2015 diagnosed with OA/TOF. Included patients had a minimum of 5 years follow-up.

RESULTS

121 patients were identified. 118 proceeded to OA/TOF repair. 115 patients had long-term follow-up data. Ninety-five (83%) children had one or more airway symptom recorded. Thirty-six (31%) neonates underwent airway endoscopy at the time of their initial OA/TOF repair. Forty-six (40%) children underwent airway endoscopy at a later date due to airway symptoms. Airway pathologies identified included airway malacia, thirty-two (28%), subglottic stenosis, eleven (10%), tracheal pouch, twenty-five (22%), laryngeal cleft, seven (6%) and recurrent fistula, five (4%). Airway interventions included endoscopic division of tracheal pouch, ten (9%), tracheostomy, seven (6%), aortopexy, six (5%), repair of recurrent fistula, five (4%), endoscopic repair of laryngeal cleft, three (3%) and four (3%) required open airway reconstruction for subglottic stenosis. One child (1%) remains tracheostomy dependent.

CONCLUSIONS

Long-term airway pathologies are common in children with OA/TOF. Many of these are remediable with surgical intervention. Clinicians should be cognisant of this and refer to Airway Services appropriately.

ERS statement: interventional bronchoscopy in children

Paediatric airway endoscopy is accepted as a diagnostic and therapeutic procedure, with an expanding number of indications and applications in children. The aim of this European Respiratory Society task force was to produce a statement on interventional bronchoscopy in children, describing the evidence available at present and current clinical practice, and identifying areas deserving further investigation. The multidisciplinary task force panel performed a systematic review of the literature, focusing on whole lung lavage, transbronchial and endobronchial biopsy, transbronchial needle aspiration with endobronchial ultrasound, foreign body extraction, balloon dilation and occlusion, laser-assisted procedures, usage of airway stents, microdebriders, cryotherapy, endoscopic intubation, application of drugs and other liquids, and caregiver perspectives. There is a scarcity of published evidence in this field, and in many cases the task force had to resort to the collective clinical experience of the committee to develop this statement. The highlighted gaps in knowledge underline the need for further research and serve as a call to paediatric bronchoscopists to work together in multicentre collaborations, for the benefit of children with airway disorders.

A case series study of therapeutic implications of type IIIb4: a rare variant of esophageal atresia and distal tracheoesophageal fistula

BACKGROUND

A wide spectrum of variations can occur in type IIIb esophageal atresia and distal tracheoesophageal fistula [EA-TEF] (Kluth D. Atlas of esophageal atresia. J Pediatr Surg 1976; 11 (6):901-19). The aim of this study was to evaluate the variant anatomy of subtype IIIb4 EA-TEF and its therapeutic implications.

METHODS

We performed a retrospective review of 4 patients of this variant subtype within a series of 259 esophageal atresias, managed over a study period of three years, at our institution. The diagnosis was made at thoracotomy. The overlapping upper and lower esophageal pouches, initially, gave a false impression of esophageal continuity. The long TEF coursed parallel in proximity to the upper pouch (UP) and the trachea needing meticulous dissection. The TEF measured 8-10mm in diameter and was ligated and divided high on the trachea near the thoracic inlet. The patients were followed up by a contrast swallow, radioactive technetium-99m- sulfur colloid scan, echocardiography and bronchoscopy (if indicated).

RESULTS

The mean birth weight and gestational age was 2250 g and 38 weeks respectively. The mean follow up was eighteen months (range 5-42 months). An associated anorectal malformation was present in two patients while none had associated congenital heart disease. The Waterston grading was A and B in one patient each and C in two patients. All the patients had muscular UP extending up-to the level of arch of azygous vein (T(3-4)). The lower esophageal pouch (LP) and the fistula extended high, near the thoracic inlet. Tracheal injury occurred in one patient, with thin LP, warranting postoperative elective ventilation. A postoperative barium swallow did not reveal anastomotic leak or stricture in any patient. Follow-up barium swallow showed long LP extending high up in the chest, up to clavicles in all four patients and redundancy of UP in case 1. Severe gastroesophageal reflux was present in two patients. Bronchoscopy revealed tracheomalacia in case 1. Three patients were thriving well at the last follow-up. One patient died at five months of age due to aspiration pneumonia.

CONCLUSIONS

The knowledge of diagnostic and therapeutic implications of the variant subtype IIIb4 EA-TEF should be in the armamentarium of the treating surgeon to reduce pitfalls in its management.