Partial gastric pull-up in the treatment of patients with long-gap esophageal atresia

Impact of serial clinical swallow evaluations and feeding interventions on growth and feeding outcomes in children with long-gap esophageal atresia after anastomosis: a retrospective cohort study

BACKGROUND

Children undergoing surgical anastomosis for long-gap esophageal atresia (LGEA) often suffer from complications related to delayed oral feeding, which may impair their early development. Clinical swallow evaluation (CSE) is an effective technique to improve feeding outcomes. However, there are limited evidences on the application of CSE in these children.

METHODS

Since 2020, serial CSEs have been consistently implemented for children undergoing anastomosis for LGEA in our hospital. We conducted a retrospective study comparing 19 children who received CSE with 31 historical controls who did not. Inverse probability of treatment weighting (IPTW) was applied to balance preoperative characteristics. We compared the time from surgery to full oral feeding and the rate of postoperative complications between the two groups. Growth curves for length-for-age Z score (LAZ) and weight-for-age Z score (WAZ) up to age 3 were fitted using generalized additive mixed models.

RESULTS

The median time to full oral feeding was 1.1 months [interquartile range (IQR), 0.8-2.4] in the CSE group and 1.5 months (IQR, 0.6-5.7) for controls. After IPTW, CSE was associated with a shorter time to full oral feeding, with a weighted hazard ratio of 2.26 [95% confidence interval (CI), 1.21 to 4.24]. LAZ growth curves significantly differed between groups (P = 0.001).

CONCLUSION

CSE was associated with the expedited achievement of full oral feeding and a more favorable growth pattern before 3 years of age.

Analysis of gap length as a predictor of surgical outcomes in esophageal atresia with distal fistula: a single center experience

PURPOSE

Long-gap esophageal atresia (LGEA) is still a challenge for pediatric surgery. No consensus exists as to what constitutes a long gap, and few studies have investigated the maximum gap length safely repairable by primary anastomosis. Based on surgical outcomes at a single institution, we aimed to determine the gap length in LGEA with a high risk of complications.

METHODS

The medical records of 51, consecutive patients with esophageal atresia (EA) with primary repair in the early neonatal period between 2001 and 2021 were retrospectively reviewed. Three, major complications were found in the surgical outcomes: (1) anastomotic leakage, (2) esophageal stricture requiring dilatation, and (3) GERD requiring fundoplication. The predictive power of the postsurgical complications was assessed using receiver operating characteristic analysis, and the area under the curve (AUC) and the cutoff value with a specificity of > 90% were calculated.

RESULTS

Sixteen patients (31.4%) experienced a complication. The AUC of gap length was0.90 (p < 0.001), and the gap length cutoff value was ≥ 2.0 cm for predicting any complication (sensitivity: 62.5%, specificity: 91.4%).

CONCLUSION

A gap length ≥ 2.0 cm was considered as defining LGEA and was associated with an extremely high complication rate after primary repair.

Development of Bio-artificial Esophageal Tissue Engineering Utilization for Circumferential Lesion Transplantation: A Narrative Review

The esophagus is the gastrointestinal tract's primary organ that transfers bolus into the stomach with peristaltic motion. Therefore, its lesions cause a significant disturbance in the nutrition and digestive system. Esophageal disease treatment sometimes requires surgical procedures that involve removal and circumferential full-thickness replacement. Unlike other organs, the esophagus has a limited regeneration ability and cannot be transplanted from donors. There are various methods of restoring the esophageal continuity; however, they are associated with certain flaws that lead to a non-functional recovery. As an exponentially growing science, tissue engineering has become a leading technique for the development of tissue replacement to repair damaged esophageal segments. Scaffold plays a significant role in the process of tissue engineering, as it acts as a template for the regeneration of growing tissue. A variety of scaffolds have been studied to replace the esophagus. Due to the many tissue quality challenges, the results are still inadequate and need to be improved. The success of esophageal tissue regeneration will finally depend on the scaffold's capability to mimic natural tissue properties and provide a qualified environment for regeneration. Thereby, scaffold fabrication techniques are fundamental. This article reviews the recent developments in esophageal tissue engineering for the treatment of circumferential lesions based on scaffold biomaterial engineering approaches.

Postoperative morbidity and health-related quality of life in children with delayed reconstruction of esophageal atresia: a nationwide Swedish study

BACKGROUND

In 10-15% of children with esophageal atresia (EA) delayed reconstruction of esophageal atresia (DREA) is necessary due to long-gap EA and/or prematurity/low birth weight. They represent a patient subgroup with high risk of complications. We aimed to evaluate postoperative morbidity and health-related quality of life (HRQOL) in a Swedish national cohort of children with DREA.

METHODS

Postoperative morbidity, age-specific generic HRQOL (PedsQL^™ 4.0) and condition-specific HRQOL (The EA-QOL questionnaires) in children with DREA were compared with children with EA who had primary anastomosis (PA). Factors associated with the DREA group's HRQOL scores were analyzed using Mann-Whitney U-test and Spearman's rho. Clinical data was extracted from the medical records. Significance level was p < 0.05.

RESULTS

Thirty-four out of 45 families of children with DREA were included and 30 returned the questionnaires(n = 8 children aged 2-7 years; n = 22 children aged 8-18 years). Compared to children with PA(42 children aged 2-7 years; 64 children aged 8-18 years), there were no significant differences in most early postoperative complications. At follow-up, symptom prevalence in children aged 2-7 with DREA ranged from 37.5% (heartburn) to 75% (cough). Further digestive and respiratory symptoms were present in ≥ 50%. In children aged 8-18, it ranged from 14.3% (vomiting) to 40.9% (cough), with other digestive and airway symptoms present in 19.0-27.3%. Except for chest tightness (2-7 years), there were no significant differences in symptom prevalence between children with DREA and PA, nor between their generic or condition-specific HRQOL scores (p > 0.05). More children with DREA underwent esophageal dilatations (both age groups), gastrostomy feeding (2-7 years), and antireflux treatment (8-18 years), p < 0.05. Days to hospital discharge after EA repair and a number of associated anomalies showed a strong negative correlation with HRQOL scores (2-7 years). Presence of cough, airway infection, swallowing difficulties and heartburn were associated with lower HRQOL scores (8-18 years), p < 0.05.

CONCLUSIONS

Although children with DREA need more treatments, they are not a risk group for postoperative morbidity and impaired HRQOL compared with children with PA. However, those with a long initial hospital stay, several associated anomalies and digestive or respiratory symptoms risk worse HRQOL. This is important information for clinical practice, families and patient stakeholders.

Barrett's oesophagus and oesophageal cancer following oesophageal atresia repair: a systematic review

BACKGROUND

Concern exists that patients born with oesophageal atresia (OA) may be at high risk for Barrett's oesophagus (BO), a known malignant precursor to the development of oesophageal adenocarcinoma. Screening endoscopy has a role in early BO identification but is not universal in this population. This study aimed to determine prevalence of BO after OA repair surgery, to quantify the magnitude of this association and inform the need for screening and surveillance.

METHODS

A systematic review, undertaken according to PRISMA guidelines, was preregistered on PROSPERO (CRD42017081001). PubMed and EMBASE were interrogated using a standardized search strategy on 31 July 2020. Included papers, published in English, reported either: one or more patients with either BO (gastric/intestinal metaplasia) or oesophageal cancer in patients born with OA; or long-term (greater than 2 years) follow-up after OA surgery with or without endoscopic screening or surveillance.

RESULTS

Some 134 studies were identified, including 19 case reports or series and 115 single- or multi-centre cohort studies. There were 13 cases of oesophageal cancer (9 squamous cell carcinoma, 4 adenocarcinoma) with a mean age at diagnosis of 40.5 (range 20-47) years. From 6282 patients under long-term follow-up, 317 patients with BO were reported. Overall prevalence of BO was 5.0 (95 per cent c.i. 4.5 to 5.6) per cent, with a mean age at detection of 13.8 years (range 8 months to 56 years). Prevalence of BO in series reporting endoscopic screening or surveillance was 12.8 (95 per cent c.i. 11.3 to 14.5) per cent.

CONCLUSION

Despite a limited number of cancers, the prevalence of BO in patients born with OA is relatively high. While limited by the quality of available evidence, this review suggests endoscopic screening and surveillance may be warranted, but uncertainties remain over the design and effectiveness of any putative programme.

Favorable Outcome of Electively Delayed Elongation Procedure in Long-Gap Esophageal Atresia

The ideal approach to long gap esophageal atresia is still controversial. On one hand, preserving a patient's native esophagus may require several steps and can be fraught with complications. On the other hand, most replacement procedures are irreversible and disrupt gastrointestinal physiology. The purpose of this study was to evaluate the short- and medium-term outcome of electively delayed esophageal elongation procedures before esophageal reconstruction in patients with long-gap esophageal atresia. Since the neonatal esophagus grows over-proportionally and can increase its wall thickness in the first few months of life, we hypothesized that postponing the elongation steps until 3 months of age would lead to a lower complication rate. We thus retrospectively recorded complications such as mediastinitis, anastomotic leakage, stricture formation, or gastroesophageal reflux requiring surgery, and compared it to reported outcomes. In our treatment protocol, patients born with long-gap esophageal atresia underwent gastrostomy placement and were sham fed until 3 months of age. We then assessed the gap between the esophageal ends and started serial elongation procedures. We only proceeded to the reconstruction of the esophagus when its length allowed a tension-free anastomosis. From April 2013 to April 2019, we treated 13 Patients with long-gap esophageal atresia. Nine patients without prior surgical procedures underwent Foker procedures. Four patients arrived with a pre-existing cervical esophagostomy and thus underwent Kimura's procedure, two of them with a concomitant Foker elongation of the lower pouch. Esophageal reconstruction was feasible in all patients, while none of them developed mediastinitis at any point in their treatment. We managed the only anastomotic leak conservatively. Almost half of the patients did not require any further intervention following reconstruction, while three patients required multiple (≥5) anastomotic dilatations. All but one patient achieved full oral nutrition. Only one child required a fundoplication to manage gastroesophageal reflux symptoms. Electively delayed esophageal elongation procedures in patients with long-gap esophageal atresia allowed preservation of the native esophagus in all patients. The approach had low peri-procedural morbidity, and patients enjoy favorable functional outcomes. Therefore, we suggest considering this method in the management of patients with long-gap esophageal atresia.

Surgical treatment and major complications Within the first year of life in newborns with long-gap esophageal atresia gross type A and B - a systematic review

BACKGROUND

The surgical repair of long-gap esophageal atresia (LGEA) is still a challenge and there is no consensus on the preferred method of reconstruction. We performed a systematic review of the surgical treatment of LGEA Gross type A and B with the primary aim to compare the postoperative complications related to the different methods within the first postoperative year.

METHODS

Systematic literature review on the surgical repair of LGEA Gross type A and B within the first year of life published from January 01, 1996 to November 01, 2016.

RESULTS

We included 57 articles involving a total of 326 patients of whom 289 had a Gross type A LGEA. Delayed primary anastomosis (DPA) was the most applied surgical method (68.4%) in both types, followed by gastric pull-up (GPU) (8.3%). Anastomotic stricture (53.7%), gastro-esophageal reflux (GER) (32.2%) and anastomotic leakage (22.7%) were the most common postoperative complications, with stricture and GER occurring more often after DPA (61.9% and 40.8% respectively) compared to other methods (p < 0.001).

CONCLUSION

The majority of patients in this review were managed by DPA and postoperative complications were common despite the surgical method, with anastomotic stricture and GER being most common after DPA.

LEVEL OF EVIDENCE

Systematic review of case series and case reports with no comparison group (level IV).

Management of long gap esophageal atresia: A systematic review and evidence-based guidelines from the APSA Outcomes and Evidence Based Practice Committee

BACKGROUND

Treatment of the neonate with long gap esophageal atresia (LGEA) is one of the most challenging scenarios facing pediatric surgeons today. Contributing to this challenge is the variability in case definition, multiple approaches to management, and heterogeneity of the reported outcomes. This necessitates a clear summary of existing evidence and delineation of treatment controversies.

METHODS

The American Pediatric Surgical Association Outcomes and Evidence Based Practice Committee drafted four consensus-based questions regarding LGEA. These questions concerned the definition and determination of LGEA, the optimal method of surgical management, expected long-term outcomes, and novel therapeutic techniques. A comprehensive search strategy was crafted and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were utilized to identify, review and report salient articles.

RESULTS

More than 3000 publications were reviewed, with 178 influencing final recommendations. In total, 18 recommendations are provided, primarily based on level 4-5 evidence. These recommendations provide detailed descriptions of the definition of LGEA, treatment techniques, outcomes and future directions of research.

CONCLUSIONS

Evidence supporting best practices for LGEA is currently low quality. This review provides best recommendations based on a critical evaluation of the available literature. Based on the lack of strong evidence, prospective and comparative research is clearly needed.

TYPE OF STUDY

Treatment study, prognosis study and study of diagnostic test.

LEVEL OF EVIDENCE

Level II-V.

Surgical repair of long-gap esophageal atresia: A retrospective study comparing the management of long-gap esophageal atresia in the Nordic countries

BACKGROUND

Several surgical procedures have been described in the reconstruction of long-gap esophageal atresia (LGEA). We reviewed the surgical methods used in children with LGEA in the Nordic countries over a 15-year period and the postoperative complications within the first postoperative year.

METHODS

Retrospective multicenter medical record review of all children born with Gross type A or B esophageal atresia between 01/01/2000 and 12/31/2014 reconstructed within their first year of life.

RESULTS

We included 71 children; 56 had Gross type A and 15 type B LGEA. Delayed primary anastomosis (DPA) was performed in 52.1% and an esophageal replacement procedure in 47.9%. Gastric pull-up (GPU) was the most frequent procedure (25.4%). The frequency of chromosomal abnormalities, congenital heart defects and other anomalies was significantly higher in patients who had a replacement procedure. The frequency of gastroesophageal reflux (GER) was significantly higher after DPA compared to esophageal replacement (p = 0.013). At 1-year follow-up the mean body weight was higher after DPA than after organ interposition (p = 0.043).

CONCLUSION

DPA and esophageal replacement procedures were equally applied. Postoperative complications and follow-up were similar except for the development of GER and the body weight at 1-year follow-up. Long-term results should be investigated.

TYPE OF STUDY

Treatment study.

LEVEL OF EVIDENCE

Level III.

Oesophageal replacement with stomach: A personal series and review of published experience

AIM

To describe the outcomes of oesophageal replacement using stomach in children.

METHODS

All children undergoing oesophageal replacement in a regional centre were prospectively recorded in a customised database and subjected to continual follow up. Complications within 30 days were classified as early, and all other complications were classified as late. Outcomes were related to a comprehensive analysis of published experience where studies were classified as having long-term follow up if the median duration exceeded 5 years.

RESULTS

Ten children underwent oesophageal replacement using the stomach between 1998 and 2016. Indications were oesophageal atresia (6), caustic ingestion (2), foreign body ingestion (1) and oesophageal hamartoma (1). Two children died at 2 and 7 months after gastric transposition. All survivors are under review, with a median follow up of 8.5 years (range 3-14 years). Complications occurred in every case. Among survivors, three had early complications and eight had late complications. Early complications included anastomotic leak (2) and lung compression by stomach (1). Late complications were anaemia (8), anastomotic stricture (7), oesophagitis (5), dumping syndrome (2), perforation of a jejunostomy (1), para-gastric hiatal hernia (1), gastric outlet obstruction (1), Barrett's oesophagus (1), prolonged inability to swallow (1) and recurrent lower respiratory tract infections (1). Among 57 publications, only three achieved complete long-term follow up. The incidence of reported complications was higher when follow up was complete.

CONCLUSIONS

Oesophageal replacement by gastric transposition in children leads to serious chronic morbidity. Published experience masks this because of incomplete and short follow up.

Long-term functional outcomes after replacement of the esophagus in pediatric patients: A systematic literature review

BACKGROUND

The indications of esophageal replacement (ER) in pediatric patients include long gap esophageal atresia (LGEA), intractable post-corrosive esophageal strictures (PCES), and some rare esophageal diseases. Various conduits and procedures are currently used worldwide with a lack of consensus regarding the ideal substitute to replace the esophagus replacement. The short-term outcomes of these advanced procedures are well known; there are few data available describing long-term functional outcomes of these patients with long life expectancy.

OBJECTIVES

The objective of this study is to investigate the long-term functional outcomes of the most widely used techniques for ER in pediatric patients based on a comprehensive literature search covering the last 10years.

METHODS

Eligible were all clinical studies reporting outcomes after esophagectomy in pediatric patients, which contained information on at least 3years of follow-up after the operation. The review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A systematic web-based search using MEDLINE, the Cochrane Library and EMBASE databases was performed, reviewing all medical literature published between January 2006 and December 2015.

RESULTS

The scientific quality of the data was generally poor, converging toward only 14 full-text articles for the final analysis. The stomach was the preferred organ for esophageal replacement, where the tubulization of the stomach resulted in significant gastroesophageal reflux. Dysphagia symptoms were more seldom reported, but several authors presented growing figures with the length of follow-up. Dumping syndrome and delayed gastric emptying were only scarcely reported upon. Following colonic graft, chronic gastrocolic reflux affects these patients, in the range of 35-70.8%, while 4 studies reported any dysphagia from 2.7% to 50% of the children. Only one study reported the outcome of the use of a long jejunal segment, where presence of symptoms of functional obstruction was mentioned in 46% of cases. Very few if any data were available on a structured assessment of postprandial dumping and disturbed bowel functions.

CONCLUSIONS

Available data in pediatric patients, on the long-term functional outcomes after esophageal replacement with a gastric tube, colonic graft or a long jejunal segment, are of poor scientific quality. Although symptoms are frequently reported currently no conclusions can be drawn regarding potential advantages of one graft over another.

TYPE OF STUDY

Treatment study, systematic review.

LEVEL OF EVIDENCE

IV.

Surgical outcomes of different approaches to esophageal replacement in long-gap esophageal atresia: A systematic review

BACKGROUND

Esophageal replacement (ER) surgery has been widely used in long-gap esophageal atresia (LGEA) over the past few decades. The most commonly used surgical approaches in many pediatric surgical centers include colon interposition (CI), gastric pull-up (GPU), jejunal interposition (JI), and gastric tube reconstruction (GTR). However, there is no systematic evidence on which is the optimal conduit for the native esophagus. The aim of this systematic review was to evaluate the short- and long-term outcomes among these 4 replacement approaches in LGEA cases based on current evidence.

METHODS

PubMed, Web of Science, Cochrane Library, and EMBASE were searched for relevant literature on November 18 2016. Studies on ER in LGEA were reviewed and selected according to eligibility criteria. We focused on surgical outcomes regarding to different replacement approaches, including postoperative complications and long-term follow-up. Both detailed descriptions of single studies and pooled data analysis were conducted. Data were computed by Reviewer Manager 5.3.

RESULTS

Twenty-three studies were included (4 comparative retrospective, 3 prospective, and 16 retrospective) with a total of 593 patients (393 LGEA, 66.3%). The number of patients with available data for analysis was 534 (90.1%), including 127 patients (98 LGEA) of GPU, 335 (223 LGEA) of CI, 45 (all LGEA) of JI, and 27 (all LGEA) of GTR. Follow-up information was provided in 15 studies. Anastomotic leak and stricture, respiratory problems, and gastroesophageal reflux were analyzed as major postoperative complications. Long-term follow-ups were concentrated on growth and feeding conditions.

CONCLUSION

Current evidence on short- and long-term outcomes of ER in LGEA patients was limited, and proper prospective comparative studies were lacking. This present systematic review indicates CI and GPU as comparable and favorable approaches, especially CI in the long-term outcomes. Studies on JI and GTR were limited, which need larger sample size to assess their validity and outcomes.

Regenerative Medicine Strategies for Esophageal Repair

Pathologies that involve the structure and/or function of the esophagus can be life-threatening. The esophagus is a complex organ comprising nonredundant tissue that does not have the ability to regenerate. Currently available interventions for esophageal pathology have limited success and are typically associated with significant morbidity. Hence, there is currently an unmet clinical need for effective methods of esophageal repair. The present article presents a review of esophageal disease along with the anatomic and functional consequences of each pathologic process, the shortcomings associated with currently available therapies, and the latest advancements in the field of regenerative medicine with respect to strategies for esophageal repair from benchtop to bedside.