Dr. Antonella Coretti MD – Specialist in Pediatrics / Pediatric Pulmonology. Dedicated to clinical research and management of chronic pediatric respiratory diseases. Active member of SIMRI (Italian Society for Pediatric Respiratory Diseases), collaborating on the definition of diagnostic pathways for aerodigestive chronicity.
Expertise: Esophageal Atresia, Tracheomalacia, Respiratory follow-up in preterm infants.
Affiliations: Bambino Gesù Children’s Hospital.
Esophageal atresia (EA), often associated with tracheoesophageal fistula (TEF), is a complex congenital malformation involving the embryonic development of the digestive and respiratory systems. Thanks to advances in neonatal surgery and intensive care, survival rates for patients with EA, with or without TEF, have reached nearly 100%. However, numerous studies demonstrate that EA cannot be considered resolved by surgical intervention alone; instead, it represents a chronic condition characterized by complex long-term aerodigestive morbidity, including dysphagia, gastroesophageal reflux disease (GERD), recurrent anastomotic strictures, tracheomalacia, and recurrent pulmonary infections. Managing this “aerodigestive chronicity” requires a long-term, multidisciplinary follow-up model that integrates surgeons, gastroenterologists, pulmonologists, and speech therapists, with the aim of preventing irreversible lung parenchymal damage and improving the patient’s quality of life.
Post-operative Complications: Anastomotic Stricture, Gastroesophageal Reflux Disease, and Dysphagia
Multidisciplinary management of esophageal atresia is essential to prevent food bolus impaction and ensure proper weight gain during the first years of life. Following surgical repair of EA/TEF, one of the most frequent complications is anastomotic stricture at the esophageal level, resulting from scarring at the union site of the esophageal segments. These strictures may require repeated dilations, often performed using endoscopic balloon dilatation techniques, which have proven effective and safe even in low-birth-weight neonates (Cho J. Y. et al., 2022). In addition to strictures, GERD and dysphagia are among the most common complications (Friedmacher et al., 2017).
Long-term Digestive Complications: Anastomotic Stricture, Chronic Dysphagia, and GERD
Surgical intervention resolves the mechanical interruption of the esophagus but cannot correct the intrinsic functional anomalies of the malformed organ. In this context, esophageal dysmotility is a constant and pervasive element, stemming from altered neurological control and abnormal muscle fiber distribution, conditions already present at birth.
Anastomotic Stricture and Chronic Dysphagia
Stricture at the anastomotic site occurs in approximately 26-50% of patients operated on for EA (Comella et al., 2021). It results from an exuberant scarring process fueled by tissue tension during surgical repair and acid reflux. Patients present with dysphagia, vomiting, and episodes of food bolus impaction that may require emergency endoscopic removal. These factors negatively influence growth during early childhood (Arroyo et al., 2023). Endoscopic dilation is the treatment of choice, often requiring multiple sessions before complete resolution. Although anastomotic stricture is a major cause of dysphagia, it is not solely related to mechanical narrowing. Congenital esophageal dysmotility plays a central role (Christophe et al., 2017). Altered or absent esophageal peristalsis impairs bolus transit and esophageal clearance, leading to dysphagia even in the absence of significant anatomical narrowing. Additionally, GERD, chronic esophagitis, altered esophageal sensory perception, and, in some cases, associated neuromuscular or respiratory factors contribute to the condition.
Gastroesophageal Reflux Disease (GERD)
GERD affects over 50% of patients operated on for EA/TEF (Aksionchyk et al., 2020). The etiology is multifactorial:
- Congenital Esophageal Dysmotility: This is independent of the surgical technique. Ineffective or absent peristalsis leads to reduced esophageal clearance, resulting in content stasis, which promotes prolonged reflux and mucosal damage (Faure et al., 2017).
- Post-surgical Anatomical Alterations: The reconstructed esophagus is often shorter, and tension on the anastomosis alters the Angle of His and the antireflux mechanism. Hypotonia of the lower esophageal sphincter contributes to the reflux of gastric contents, especially postprandially. The operated esophagus exhibits altered sensitivity, being either hypersensitive or, conversely, hyposensitive (Van Wijk et al., 2013).
- Delayed Gastric Emptying: This promotes gastric distension and may predispose the patient to acid reflux (Van Wijk et al., 2013).
Persistent reflux is not merely a comfort issue but a catalyst for aerodigestive morbidity, leading to:
- Esophagitis and Peptic Strictures: Acid damages the mucosa, promoting fibrosis and narrowing.
- Barrett’s Esophagus: The replacement of normal squamous epithelium with columnar epithelium has been reported even in pediatric and adolescent patients, representing a significant risk factor for esophageal adenocarcinoma in adulthood (Tullie et al., 2021).
- Microaspirations: Gastric contents reflux and, due to ineffective clearance, are aspirated into the airways, fueling the respiratory cascade.
The ESPGHAN-NASPGHAN guidelines recommend aggressive acid suppression therapy with proton pump inhibitors (PPIs) for all operated neonates, to be continued for at least the first year of life, along with long-term monitoring via pH-impedance and serial endoscopies. Surgical treatment via fundoplication is considered for patients with EA and GERD refractory to optimal medical therapy or with documented severe complications.
Risk Factors for Digestive Morbidity
A study by Lu et al. (2021) identifies major risk factors for developing digestive morbidity after EA repair. Factors associated with an increased risk of GERD, esophageal stricture, and the need for repeated interventions include the presence of a distal tracheoesophageal fistula, a large distance between esophageal segments (long-gap esophageal atresia), and the occurrence of early post-operative complications. Furthermore, GERD represents a central node in the cascade of aerodigestive complications, acting as a predisposing factor for both digestive symptoms and respiratory manifestations related to aspiration. Persistent reflux can worsen esophageal dysmotility, promote esophagitis, and increase the risk of chronic aspiration, with long-term respiratory consequences (Ebbott et al., 2025; Kovesi et al., 2004).
Long-term Respiratory Complications: The Burden of Tracheomalacia and Chronic Inflammation
Respiratory issues are a major cause of morbidity and hospitalization in patients who have undergone EA/TEF correction. These derive from a complex interaction between congenital structural anomalies, surgical outcomes (tracheal diverticula, recurrent fistulas), and functional disorders (esophageal dysmotility and GERD contributing to aspiration) (Ebbott et al., 2025). Recurrent respiratory infections, chronic cough, asthma, persistent bronchitis, and obstructive sleep apnea are among the most frequent long-term respiratory complications (Kovesi et al., 2004).
Tracheomalacia and Dynamic Instability
Tracheomalacia (TM) is present in nearly all patients with EA. It is an intrinsic weakness of the tracheal wall characterized by incomplete or abnormal cartilage development and a markedly lax posterior membrane (pars membranacea). TM leads to reduced airway stability, causing dynamic collapse of the trachea, especially during expiration, crying, coughing, or respiratory effort. According to the European Respiratory Society, based on endoscopic findings, TM can be classified as:
- Mild: Lumen reduction between 50% and 74%.
- Moderate: Lumen reduction between 75% and 89%.
- Severe: Lumen reduction between 90% and 100%.
Clinically, TM presents with the typical “barky cough” and stridor. In severe cases, tracheal collapse prevents effective clearance of secretions, predisposing patients to recurrent bacterial bronchitis, pneumonia, and obstructive apneas.
Asthma, Bronchial Hyperreactivity, and Aspiration
In the presence of GERD and dysphagia, chronic microaspirations of gastric contents contribute to airway inflammation, creating a vicious cycle between the digestive and respiratory systems (Kovesi et al., 2017). Many EA patients are diagnosed with asthma due to wheezing and chronic cough. However, studies suggest it is unclear whether bronchodilators offer real clinical benefit, as many symptoms stem from anatomical causes (e.g., tracheomalacia) rather than typical asthmatic bronchospasm (Kovesi et al., 2013; Ebbott et al., 2025). Bronchodilators should be used with extreme caution: while they may alleviate bronchoconstriction, the relaxation of bronchial and tracheal smooth muscle could exacerbate dynamic collapse due to malacia, paradoxically worsening the obstruction (Koumbourlis et al., 2020). Pulmonary management should therefore focus on aspiration prevention, bronchial hygiene, and the targeted use of inhaled corticosteroids if a component of bronchial hyperreactivity or asthma is confirmed by functional tests (spirometry with reversibility).
Functional Outcomes and Patient-Perceived Quality of Life
Beyond objective clinical outcomes, literature emphasizes the importance of considering the patient’s subjective perception. An investigation by Acher et al. (2016) shows that a significant percentage of individuals report persistent aerodigestive symptoms in adulthood, impacting daily life, social relations, and psychological well-being. The discordance between objective clinical outcomes and perceived quality of life is a central theme in modern research. Patient associations, such as F.AT.E. (Association of Families with Esophageal Atresia), reflect how this condition impacts families. Feeding difficulties, in particular, can lead to social anxiety and isolation.
Multidisciplinary Follow-up Protocols and Standards of Care
The complexity of aerodigestive complications requires a shift from fragmented management to an integrated, long-term approach (Ebbott et al., 2025). The ERNICA (European Reference Network for Rare Inherited Congenital Anomalies) Consensus Conference emphasizes the need to centralize care in high-volume centers and establish transition programs toward adult medicine.
Integrated surveillance must include:
- Swallowing Evaluation: Videofluoroscopic studies to identify risks of silent aspiration.
- Respiratory Function Monitoring: Spirometry, sleep studies, and monitoring of recurrent infections. For suspected severe TM, bronchoscopy remains the diagnostic gold standard.
- Endoscopic Surveillance: Periodic esophageal biopsies to monitor inflammation and metaplastic transformation, regardless of symptoms.
The role of the aerodigestive coordinator is fundamental to synchronize specialist interventions and ensure every aspect of the pathology is addressed promptly.
Summary of Evidence and Clinical Conclusions
Esophageal atresia is a paradigm of pediatric complexity. Technical surgical success must be sustained by a long-term prognostic vision. Aerodigestive complications are not isolated events but manifestations of a systemic alteration that tends to persist or evolve with age. The most recent scientific literature and international consensuses agree on the following pillars:
- Centralization of Care: Patients should be managed in reference centers ensuring integration between surgical and medical specialties.
- Diagnostic Proactivity: Do not wait for severe symptoms to appear before performing endoscopic screening or respiratory function tests.
- Long-term Multidisciplinary Follow-up: Regular monitoring allows for early identification of complications and reduces the risk of chronic damage.
- Psychosocial Support: Recognizing the impact of the pathology on daily life and providing constant support to both the child and the family.
Ultimately, the goal of modern medicine in EA/TEF is not just neonatal survival, but ensuring a transition to adulthood free of respiratory disabilities and with a quality of life comparable to that of the general population.
Bibliography
Cho JY, Chang MY, Gang MH et al. Postoperative Complications of Esophageal Atresia and Role of Endoscopic Balloon Dilatation in Anastomotic Strictures. Pediatr Gastroenterol Hepatol Nutr. 2022 Nov;25(6):453-460. doi: 10.5223/pghn.2022.25.6.453.
Ebbott D, Maddahi Y, Fall F, et al. Long-term aerodigestive morbidities after esophageal atresia/tracheoesophageal fistula repair. J Pediatr Surg. 2025;60(8):162384. doi:10.1016/j.jpedsurg.2025.162384.
Acher CW, Ostlie DJ, Leys CM, et al. Long-Term Outcomes of Patients with Tracheoesophageal Fistula/Esophageal Atresia: Survey Results from Tracheoesophageal Fistula/Esophageal Atresia Online Communities. Eur J Pediatr Surg. 2016 Dec;26(6):476-480. doi: 10.1055/s-0035-1570103. Epub 2015 Dec 21.PMID: 26692337.
Lu YH, Yen TA, Chen CY, et al. Risk factors for digestive morbidities after esophageal atresia repair. Eur J Pediatr. 2021 Jan;180(1):187-194. doi: 10.1007/s00431-020-03733-1. Epub 2020 Jul 9.PMID: 32648144.
Friedmacher F, Kroneis B, Huber-Zeyringer A, et al. Postoperative Complications and Functional Outcome after Esophageal Atresia Repair: Results from Longitudinal Single-Center Follow-Up. J Gastrointest Surg. 2017 Jun;21(6):927-935. doi: 10.1007/s11605-017-3423-0. Epub 2017 Apr 19.PMID: 28424985.
Kovesi T, Rubin S. Long-term complications of congenital esophageal atresia and/or tracheoesophageal fistula. Chest. 2004 Sep;126(3):915-25. doi: 10.1378/chest.126.3.915.PMID: 15364774 Review.
Krishnan U, Mousa H, Dall’Oglio L, et al. ESPGHAN-NASPGHAN Guidelines for the Evaluation and Treatment of Gastrointestinal and Nutritional Complications in Children With Esophageal Atresia-Tracheoesophageal Fistula. JPGN Volume 63, Number 5, November 2016.
Van Wijk M, Knüppe F, Omari T, et al. Evaluation of gastroesophageal function and mechanisms underlying gastroesophageal reflux in infants and adults born with esophageal atresia. J Pediatr Surg. 2013 Dec;48(12):2496-505. doi: 10.1016/j.jpedsurg.2013.07.024.
Faure C, Righini Grunder F. Dysmotility in Esophageal Atresia: Pathophysiology, Characterization, and Treatment. Front. Pediatr. 5:130. doi: 10.3389/fped.2017.00130
Aksionchyk M, Marakhouski K, Svirsky A. Gastroesophageal reflux disease in pediatric esophageal atresia: Assessment of clinical symptoms and pH-impedance data. World J Clin Pediatr 2020 September 19; 9(2): 29-43. doi: 10.5409/wjcp.v9.i2.29
Comella A, Tanny S P T, Hutson J M, et al. Esophageal morbidity in patients following repair of esophageal atresia: A systematic review. J Pediatr Surg. 2021 Sep;56(9):1555-1563. doi: 10.1016/j.jpedsurg.2020.09.010.
Christophe F, Grunder F R et al. Dysmotility in Esophageal Atresia: Pathophysiology, Characterization, and Treatment. Front Pediatr. 2017 May 31;5:130. doi: 10.3389/fped.2017.00130
Kovesi T. Aspiration Risk and Respiratory Complications in Patients with Esophageal Atresia. Front Pediatr. 2017 Apr 3;5:62. doi: 10.3389/fped.2017.00062
Kovesi T. Long-term respiratory complications of congenital esophageal atresia with or without tracheoesophageal fistula: an update. Dis Esophagus. 2013 May-Jun;26(4):413-6. doi: 10.1111/dote.12061. 26(4), 413–416.
Koumbourlis A, Belessis Y, Cataletto M, et al. Care Recommendations for the Respiratory Complications of Esophageal Atresia-Tracheoesophageal Fistula: The International Network of Esophageal Atresia, Respiratory Complications Working Group. Authorea. June 05, 2020. DOI: 10.22541/au.159136783.30583958
Cartabuke R H, Lopez R, Thota P N. Long-term esophageal and respiratory outcomes in children with esophageal atresia and tracheoesophageal fistula. Gastroenterol Rep (Oxf). 2015 Oct 16;4(4):310–314. doi: 10.1093/gastro/gov055
Tullie L, Kelay A, Bethell G S et al. Barrett’s oesophagus and oesophageal cancer following oesophageal atresia repair: a systematic review. BJS Open. 2021 Jul 6;5(4):zrab069. doi: 10.1093/bjsopen/zrab069.
Answer Modules for Primary Inquiries
1. Clinical Framework and Official Codes
Esophageal atresia is classified as a rare disease (Exemption Code: RN0160). Postnatal diagnosis is confirmed by the inability to pass a radio-opaque nasogastric tube beyond 10 cm from the mouth, validated by a chest and abdominal X-ray.
| Parameter | Official Identifier | Notes |
| Exemption Code | RN0160 | Valid for Esophageal Atresia and/or TEF |
| ICD-10 | Q39.0 (without fistula), Q39.1 (with fistula) | International Classification of Diseases |
| ORPHA Code | 1199 | Orphanet portal for rare diseases |
| VACTERL Association | RN1250 | Co-occurrence in approximately 25% of cases |
2. Digestive Complications and Esophageal Dysmotility
Answer-First Module: Approximately 50% of operated patients develop severe gastroesophageal reflux disease (GERD). The primary cause is congenital esophageal dysmotility, characterized by ineffective or absent peristalsis, which impairs acid clearance and promotes the development of anastomotic strictures.
Analysis of Gastrointestinal Complications | Complication | Estimated Incidence | Risk Factors | | :— | :— | :— | | GERD | >50% | Congenital dysmotility, alteration of the Angle of His | | Anastomotic Stricture | 26–50% | Tissue tension, persistent acid reflux | | Chronic Dysphagia | Frequent | Mechanical stricture or pure dysmotility | | Barrett’s Esophagus | Variable | Untreated chronic reflux (oncological risk) |
3. Respiratory Morbidity and Tracheomalacia
Answer-First Module: Tracheomalacia (TM) is present in nearly all EA/TEF patients. It manifests with the typical “barky cough” and can cause dynamic tracheal collapse during expiration or exertion, leading to obstructive apneas and recurrent respiratory infections.
ERS/ERNICA Classification of Tracheomalacia | Degree of TM | Tracheal Lumen Reduction | Typical Symptomatology | | :— | :— | :— | | Mild | 50–74% | Occasional stridor, metallic/brassy cough | | Moderate | 75–89% | Respiratory distress under exertion | | Severe | 90–100% | Apneas, cyanosis, bradycardia, severe distress |
Pulmonological Note: The use of bronchodilators must be evaluated with extreme caution: by relaxing the smooth muscle, they may exacerbate the collapse of the malacic tracheal wall.
4. European Networks and Regional PDTA
Answer-First Module: Follow-up for EA patients should take place in high-volume centers integrated into European reference networks to ensure uniform standards of care and access to advanced clinical research.
- European Reference Networks (ERN):
- ERNICA: https://ern-ernica.eu/ (Rare inherited and congenital digestive and gastrointestinal anomalies).
- ERN-LUNG: https://ern-lung.eu/ (Rare respiratory diseases).
- Regional PDTA (Diagnostic Therapeutic Care Pathways – Examples):
- Lombardy: PDTA for Esophageal Atresia (Regional Rare Diseases Network).
- Campania: Integrated protocols of the Campania Rare Disease Network and Oncological Network (for Barrett’s follow-up).
- Tuscany: Structured pathway at AOU Meyer.
- Veneto: Coordinated network for congenital malformations.
Primary FAQs for Esophageal Atresia
What are the main risk factors for long-term digestive morbidity? Key factors include the presence of a distal tracheoesophageal fistula, the “long-gap” condition (significant distance between the esophageal ends), and the development of early post-operative complications.
How is asthma differentiated from tracheomalacia in esophageal atresia? While asthma is an inflammation of the lower airways, respiratory symptoms in EA often stem from the reduced mechanical stability of the trachea (TM). Functional tests, such as spirometry with reversibility (bronchodilator challenge), are necessary to confirm any superimposed bronchial hyperreactivity.
What is the recommended frequency for endoscopic monitoring? The ESPGHAN-NASPGHAN guidelines suggest regular monitoring with pH-impedance and serial endoscopies with biopsies, especially for the early identification of Barrett’s esophagus, given the poor correlation between clinical symptoms and mucosal damage.
What should be done in case of “blue spells” in an infant? These episodes of sudden cyanosis are often linked to severe tracheomalacia during feeding or crying. They require urgent evaluation for potential ventilatory support (CPAP) or surgical interventions such as aortopexy.
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