Congenital esophageal stenosis associated with esophageal atresia

Balloon dilatation for congenital esophageal stenosis associated with esophageal atresia

PURPOSE

Congenital esophageal stenosis (CES) associated with esophageal atresia (EA) is rare, and no standard treatment has been established. We reviewed cases of EA-associated CES to assess the clinical characteristics and treatment outcomes, especially the feasibility of endoscopic dilatation.

METHODS

We retrospectively examined patients with EA-associated CES. We also compared treatment outcomes of EA-associated CES with those of EA patients without CES who developed postoperative anastomotic stricture.

RESULTS

Among 44 patients with EA, ten had CES (23%). Postoperative complications were not significantly different between EA patients with CES and those without CES but with anastomotic stricture. All CES patients underwent balloon dilatation as initial treatment. Eight of nine patients (89%) were successfully treated by dilatation only, and one patient underwent surgical resection. The median number of balloon dilatations for CES was five (2-17), which was higher than that for anastomotic stricture in patients without CES (p = 0.012). Esophageal perforation occurred in five patients with CES (5/9, 56%) after dilatation, but all perforations were successfully managed conservatively with an uneventful post-dilatation course.

CONCLUSIONS

Twenty-three percent of patients with EA had CES. Although balloon dilatation for EA-associated CES required multiple treatments and carried a risk of perforation, balloon dilatation showed an 89% success rate and all perforations could be managed conservatively.

Usefulness of routine early œsophagogram after primary repair of œsophageal atresia: a multicenter study

BACKGROUND

Advances in surgical and neonatal care have led to improved survival of patients with œsophageal atresia (OA) over time. Morbidity remains significant, with one-third of patients being affected by a postoperative complication. Several aspects of management are not consensual, such as the use of œsophagogram before starting oral feeding.

METHODS

We conducted a multicenter retrospective study, including all children with OA that underwent a primary anastomosis in the first days of life, between 2012 and 2018 in five French centers, to determine the usefulness of postoperative œsophagogram during the 10 days after early primary repair of OA to diagnose the anastomotic leak and congenital œsophageal stenosis.

RESULTS

Among 225 included children, 90 (40%) had a routine œsophagogram and 25 (11%) had an anastomotic leak, clinically diagnosed before the scheduled œsophagogram in 24/25 (96%) children at median postoperative day 4. Ten patients had associated congenital œsophageal stenosis diagnosed on the œsophagogram in only 30% of cases.

CONCLUSION

Early œsophagogram is rarely useful in the diagnosis of an anastomotic leak, which is clinically diagnosed before performing an œsophagogram in the majority of cases. The need for a postoperative œsophagogram should be evaluated on a case-by-case basis.

IMPACT

Early œsophagogram is not helpful in the diagnosis of an anastomotic leak in the majority of cases. An anastomotic leak is most often diagnosed clinically before performing an œsophagogram. Early postoperative œsophagogram could be helpful for the diagnosis of congenital œsophageal stenosis. However, dysphagia occurs later and early diagnosis of congenital œsophageal stenosis has no impact on the management and outcome of asymptomatic children. Indication of postoperative œsophagogram has to be evaluated on a case-by-case basis.

A Unique Presentation of a Thoracic Conundrum: Tracheobronchial Rests in the Esophagus

Tracheobronchial rests are a rare congenital anomaly where ectopic respiratory tract elements may be found in an abnormal site, such as within the esophageal wall. We present a case of a late presentation of an esophageal intramural tracheobronchial rest with complaints of pain in the left chest wall, vomiting, and loss of appetite for one month. The chest X-ray and mammogram were both normal, but an endoscopy could not be performed due to luminal narrowing. A CT scan shows a well-defined, round, non-enhancing hypodense lesion measuring 2.6 x 2.7 cm in the middle one-third of the esophagus. Upon resection, histopathological examination revealed fragments of tissue lined by pseudostratified ciliated columnar epithelium with respiratory mucinous glands admixed with pools of mucin and underlying strands of skeletal muscle. The subepithelium contains esophageal submucosal glands, which confirm the esophageal origin of the choristoma. The usual presentation is congenital esophageal stenosis at birth with over half of these cases being attributed to tracheobronchial rests. Presentation beyond adolescence is even rarer with a relatively benign course and favorable prognosis. Clinical, radiological, and pathological correlation as well as a high index of suspicion are important to avoid misdiagnosis and to institute optimal treatment.

Endoscopic Management of Congenital Esophageal Defects and Associated Comorbidities

The endoscopist plays a critical role in the management of patients with congenital esophageal defects. This review focuses on esophageal atresia and congenital esophageal strictures and, in particular, the endoscopic management of comorbidities related to these conditions, including anastomotic strictures, tracheoesophageal fistulas, esophageal perforations, and esophagitis surveillance. Practical aspects of endoscopic techniques for stricture management are reviewed including dilation, intralesional steroid injection, stenting, and endoscopic incisional therapy. Endoscopic surveillance for mucosal pathology is essential in this population, as patients are at high risk of esophagitis and its late complications such as Barrett's esophagus.

Management and clinical outcomes of congenital esophageal stenosis in pediatric patients: Experience of a tertiary referral center

PURPOSE

This study aimed to retrospectively investigate congenital esophageal stenosis (CES) cases managed at our institution using a non-aggressive strategy based on a step-up approach from esophageal balloon dilatations to surgery.

METHODS

Patients' charts with CES managed in a tertiary pediatric surgery department were retrospectively evaluated. Demographic characteristics, clinical features, pH-monitoring, imaging, and esophagoscopy results were recorded together with their treatments and outcomes.

RESULTS

Nineteen patients, confirmed with radiologic and endoscopic investigations, were managed. Complete symptom resolution was achieved in 14 patients by a median of five (2-15) recurrent esophageal balloon dilatations lasting for 7.5 (2-108) months. Two more patients, after 7 and 15 dilatations, had mild dysphagia, not interfering with their daily living. One patient, in whom the initial dilatation attempt with 3 atm was unsuccessful, and two patients with persistent symptoms and growth retardation despite ongoing dilatation treatment, underwent surgery. After 48 (12-132) months of follow-up, 17 patients were symptom-free.

CONCLUSION

Conservative treatment with esophageal balloon dilatations is an efficient and reliable modality that can be used as a first-line treatment in CES. Surgical treatment option should be used when dilatation attempt is unsuccessful, or symptoms and growth retardation persist despite dilatation treatment.

Congenital oesophageal stenosis in oesophageal atresia: underrecognised and often missed?

PURPOSE

Congenital oesophageal stenosis (COS) is characterised by an intrinsic oesophageal narrowing that is present, but not necessarily symptomatic at birth. Small studies report an association of COS with oesophageal atresia (OA) in up to 14% of OA cases. Although OA is usually appreciated shortly after birth, the diagnosis of a concomitant COS is frequently delayed. This risk may be increased with the current movement away from routine postoperative upper gastrointestinal (GI) contrast study following OA repair. We performed a systematic review of the literature to assess the timing of diagnosis of COS in patients with COS and OA and how this impacted on patient outcomes.

METHODS

A systematic review in accordance with PRISMA guidelines was undertaken. Only patients with OA associated with COS were included. Delayed diagnosis was defined as presentation > 1 month of age.

RESULTS

14 full-text studies with a total of 131 patients were included. Diagnosis of COS was delayed in 62/131 (47%) patients. These children presented with symptoms of dysphagia and aspiration at a median age of 13.5 months (IQR 7-30 months). In total, 18/131 patients were identified at the initial operation, due to difficulty passing a tube distally into the stomach. The data on timing of contrast studies were provided in 60/131 (46%) patients. A routine postoperative contrast study was performed in 39/60 (65%) of these, of which COS was identified immediately in 28/39 (72%). A diagnosis of COS could also be made on retrospective review of the early contrast study in a further 6/39 patients, giving an overall sensitivity of 87%.

CONCLUSION

The association of COS and OA may be underrecognised and diagnosis delayed if routine contrast study is not performed. Contrast studies, performed in the neonatal period are effective at detecting a concomitant COS (sensitivity > 87%). This review supports routine early contrast study after OA repair with specific consideration of the presence of COS.

Characteristics and treatment of congenital esophageal stenosis: A retrospective collaborative study from three Japanese children's hospitals

BACKGROUND/PURPOSE

There is no consensus on treatment strategy of congenital esophageal stenosis (CES). This study aimed to assess appropriateness of the treatment we have provided to patients with CES over the past four decades.

METHODS

We carried out a retrospective chart review of 83 CES patients treated at three children's hospitals between 1973 and 2015. Each patient underwent an initial treatment with either surgery or a series of dilation that was followed by surgery if dilation failed to improve esophageal transit. Demographic data, course of treatment, outcomes, and complications were analyzed.

RESULTS

During this initial treatment, 19 and 64 patients underwent surgery and dilation, respectively. Out of the 64 patients who underwent dilations as an initial treatment, 26 patients eventually required surgery. Out of all patients who required surgery (19 initial treatments + 26 failed dilations), 29 had tracheobronchial remnants and 16 had fibromuscular hypertrophy. Six patients experienced esophageal perforation during dilation and ten experienced anastomotic leakage after surgery. No patients had swallowing difficulties at the latest follow up, 141(9-324) months.

CONCLUSIONS

Dilation is recommended as an initial therapy, especially if histological diagnosis of CES is uncertain. Persistent swallowing difficulties after 2 series of dilation may be an indication for surgery.

LEVELS OF EVIDENCE

level IV.

Laparoscopic-Assisted Longitudinal Incision and Transverse Anastomosis: A Novel Surgical Approach for Treatment of Esophageal Stenosis Caused by Tracheobronchial Remnants

Purpose: To review the treatment of lower congenital esophageal stenosis caused by tracheobronchial remnants (TBR) and to introduce a novel technical approach through laparoscopic surgery. Methods: Patients with TBR who underwent surgery in our single-center from January 2016 to December 2019 were enrolled. Resection of cartilage with stenotic esophageal segment and end-to-end anastomosis was the traditional surgery. Since 2018, longitudinal incision with partial resection of cartilage loop in the anterior esophageal wall and the transverse suture was conducted endoscopically. We reviewed the treatment, followed-up with these patients, and discussed the new procedure's preponderance. Main Results: Thirteen patients underwent surgery and were followed-up for 0.5-45 months (M = 13) after surgery. Twelve patients showed good physical development with a regular diet. One patient, who was 2 weeks after the surgery, was fed by a soft diet and regularly followed-up at our clinic. In 13 cases, five patients underwent traditional laparotomy with pyloroplasty. Two patients who went through anastomotic leakage were cured by drainage and conservative treatments. Anastomotic stricture that occurred in two cases was improved by one-time of dilation. The administration time of parenteral nutrition (PN) was 9.0 ± 1.4 days. The length of hospitalization was 36.6 ± 5.2 days. Eight cases underwent the new surgical approach through laparoscopy or thoracoscopy. Pyloroplasty was avoided since the vagal close to the posterior wall of the esophagus was protected. Gastric motility disorder did not occur as expected. No leakage occurred postoperatively. The anastomotic stricture was found in six cases and improved after one to five times of dilations. The length of hospitalization dropped to 18.6 ± 6.9 days significantly (P < .001). Conclusions: Longitudinal incision and transverse anastomosis of the anterior wall of the esophagus with partial resection of cartilage without pyloroplasty through endoscopy is a novel practical surgical approach to treat patients with TBR.

Esophageal Perforation and EVAC in Pediatric Patients: A Case Series of Four Children

Introduction: In pediatric patients, esophageal perforation (EP) is rare but associated with significant morbidity and mortality rates of up to 20-30%. In addition to standard treatment options, endoscopic esophageal vacuum-assisted closure (EVAC) therapy has shown promising results, especially in adult patients. Thus far, the only data on technical success and effectiveness of EVAC in pediatric patients were published in 2018 by Manfredi et al. at Boston Children's Hospital. The sparse data on EVAC in children indicates that this promising technique has been barely utilized in pediatric patients. More data are needed to evaluate efficacy and outcomes of this technique in pediatric patients. Method: We reviewed five cases of therapy using EVAC, ArgyleTM Replogle Suction Catheter (RSC), or both on pediatric patients with EP in our institution between October 2018 and April 2020. Results: Five patients with EP (median 3.4 years; 2 males) were treated with EVAC, RSC, or a combination. Complete closure of EP was not achieved after EVAC alone, though patients' health stabilized and inflammation and size of EP decreased after EVAC. Four patients then were treated with RSC until the EP healed. One patient needed surgery as the recurrent fistula did not heal sufficiently after 3 weeks of EVAC therapy. Two patients developed stenosis and were successfully treated with dilatations. One patient treated with RSC alone showed persistent EP after 5 weeks. Conclusion: EVAC in pediatric patients is technically feasible and a promising method to treat EP, regardless of the underlying cause. EVAC therapy can be terminated as soon as local inflammation and C-reactive protein levels decrease, even if the mucosa is not healed completely at that time. A promising subsequent treatment is RSC. An earlier switch to RSC can substantially reduce the need of anesthesia during subsequent treatments. Our findings indicate that EVAC is more effective than RSC alone. In some cases, EVAC can be used to improve the tissues condition in preparation for a re-do surgery. At 1 year after therapy, all but one patient demonstrated sufficient weight gain. Further prospective studies with a larger cohort are required to confirm our observations from this small case series.

Genetic Mouse Models and Induced Pluripotent Stem Cells for Studying Tracheal-Esophageal Separation and Esophageal Development

Esophagus and trachea arise from a common origin, the anterior foregut tube. The compartmentalization process of the foregut into the esophagus and trachea is still poorly understood. Esophageal atresia/tracheoesophageal fistula (EA/TEF) is one of the most common gastrointestinal congenital defects with an incidence rate of 1 in 2,500 births. EA/TEF is linked to the disruption of the compartmentalization process of the foregut tube. In EA/TEF patients, other organ anomalies and disorders have also been reported. Over the last two decades, animal models have shown the involvement of multiple signaling pathways and transcription factors in the development of the esophagus and trachea. Use of induced pluripotent stem cells (iPSCs) to understand organogenesis has been a valuable tool for mimicking gastrointestinal and respiratory organs. This review focuses on the signaling mechanisms involved in esophageal development and the use of iPSCs to model and understand it.

Gastrointestinal Endoscopy in the Neonate

Gastrointestinal endoscopy permits direct observation of the alimentary tract, acquisition of mucosal tissue for histopathologic examination, and other diagnostic and therapeutic maneuvers. Endoscopes of appropriate size for many neonates and an expanding array of compatible tools and accessories have broadened what is possible, although few neonatal data exist to guide use. Evaluation and treatment of gastrointestinal bleeding, evaluation and dilation of fibromuscular congenital esophageal stenosis, and the bedside placement of gastrostomy tube have been described. Careful consideration of risks, benefits, and discussions between involved specialties permit patient-specific application of these tools and techniques to augment care of this vulnerable population.

Oesophageal atresia

Oesophageal atresia (EA) is a congenital abnormality of the oesophagus that is caused by incomplete embryonic compartmentalization of the foregut. EA commonly occurs with a tracheo-oesophageal fistula (TEF). Associated birth defects or anomalies, such as VACTERL association, trisomy 18 or 21 and CHARGE syndrome, occur in the majority of patients born with EA. Although several studies have revealed signalling pathways and genes potentially involved in the development of EA, our understanding of the pathophysiology of EA lags behind the improvements in surgical and clinical care of patients born with this anomaly. EA is treated surgically to restore the oesophageal interruption and, if present, ligate and divide the TEF. Survival is now ~90% in those born with EA with severe associated anomalies and even higher in those born with EA alone. Despite these achievements, long-term gastrointestinal and respiratory complications and comorbidities in patients born with EA are common and lead to decreased quality of life. Oesophageal motility disorders are probably ubiquitous in patients after undergoing EA repair and often underlie these complications and comorbidities. The implementation of several new diagnostic and screening tools in clinical care, including high-resolution impedance manometry, pH-multichannel intraluminal impedance testing and disease-specific quality of life questionnaires now provide better insight into these problems and may contribute to better long-term outcomes in the future.

Malformations, choristomas, and hamartomas of the gastrointestinal tract and pancreas

Congenital and hamartomatous lesions of the gastrointestinal tract cause diagnostic challenges for surgical pathologists. Many of these are merely histologic curiosities, whereas others have substantial clinical implications because they herald cancer syndromes or associated anomalies. Although a comprehensive discussion of all developmental abnormalities that can occur in the gastrointestinal tract is beyond the scope of a single manuscript, some entities are more likely to be encountered by surgical pathologists, have important clinical consequences, or pose diagnostic difficulties. The purpose of this review is to discuss the more common malformations and choristomas, as well as hamartomatous lesions that may be clinically important due to their risk for cancer development, frequent associations with heritable cancer syndromes and other anomalies, or potential to simulate other entities.

How to Care for Patients with EA-TEF: The Known and the Unknown

PURPOSE OF REVIEW

Guidelines were recently published highlighting why esophageal atresia (EA) patients are prone to complication risks, and the need for long-term follow-up. In this review, we will focus on how to investigate and treat potential complications, as well as the pros and cons of different investigative and treatment modalities, and what areas continue to need further research.

RECENT FINDINGS

EA patients are at high risk for gastroesophageal reflux and esophageal strictures, and the sequela that result. Extraintestinal manifestations of gastroesophageal reflux disease (GERD) can appear similar to other pathologic diagnoses commonly found in EA patients, such as congenital stricture, eosinophilic esophagitis, esophageal dysmotility, tracheomalacia, recurrent fistula, aspiration, etc. Therefore, it is important to have a standardized way to monitor for these issues. pH impedance allows for detection of nonacid reflux and the height of reflux, which are important in correlating symptoms with reflux episodes. A multidisciplinary approach is beneficial in evaluating and monitoring EA patients in the long term.

Paediatric Gastrointestinal Endoscopy: European Society for Paediatric Gastroenterology Hepatology and Nutrition and European Society of Gastrointestinal Endoscopy Guidelines

This guideline refers to infants, children, and adolescents ages 0 to 18 years. The areas covered include indications for diagnostic and therapeutic esophagogastroduodenoscopy and ileocolonoscopy; endoscopy for foreign body ingestion; corrosive ingestion and stricture/stenosis endoscopic management; upper and lower gastrointestinal bleeding; endoscopic retrograde cholangiopancreatography; and endoscopic ultrasonography. Percutaneous endoscopic gastrostomy and endoscopy specific to inflammatory bowel disease has been dealt with in other guidelines and are therefore not mentioned in this guideline. Training and ongoing skill maintenance are to be dealt with in an imminent sister publication to this.

ESPGHAN-NASPGHAN Guidelines for the Evaluation and Treatment of Gastrointestinal and Nutritional Complications in Children With Esophageal Atresia-Tracheoesophageal Fistula

BACKGROUND

Esophageal atresia (EA) is one of the most common congenital digestive anomalies. With improvements in surgical techniques and intensive care treatments, the focus of care of these patients has shifted from mortality to morbidity and quality-of-life issues. These children face gastrointestinal (GI) problems not only in early childhood but also through adolescence and adulthood. There is, however, currently a lack of a systematic approach to the care of these patients. The GI working group of International Network on Esophageal Atresia comprises members from ESPGHAN/NASPGHAN and was charged with the task of developing uniform evidence-based guidelines for the management of GI complications in children with EA.

METHODS

Thirty-six clinical questions addressing the diagnosis, treatment, and prognosis of the common GI complications in patients with EA were formulated. Questions on the diagnosis, and treatment of gastroesophageal reflux, management of "cyanotic spells," etiology, investigation and management of dysphagia, feeding difficulties, anastomotic strictures, congenital esophageal stenosis in EA patients were addressed. The importance of excluding eosinophilic esophagitis and associated GI anomalies in symptomatic patients with EA is discussed as is the quality of life of these patients and the importance of a systematic transition of care to adulthood. A systematic literature search was performed from inception to March 2014 using Embase, MEDLINE, the Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Clinical Trials, and PsychInfo databases. The approach of the Grading of Recommendations Assessment, Development and Evaluation was applied to evaluate outcomes. During 2 consensus meetings, all recommendations were discussed and finalized. The group members voted on each recommendation, using the nominal voting technique. Expert opinion was used where no randomized controlled trials were available to support the recommendation.