Endoscopic therapy of oesophageal strictures in children - a multicentre study

Indications and Yield of Pediatric Endoscopy in Bahrain: A Tertiary Center Experience

Background and Objectives. Gastrointestinal (GI) endoscopy is a medical field that has been evolving in the last decades. Innovative advances in pediatric endoscopy led to more accurate diagnosis of various GI diseases. This study aimed to assess the appropriateness of endoscopic procedures’ indications and to evaluate the diagnostic and therapeutic yield of pediatric GI endoscopy, considering the limitations to access this facility. Material and Methods. Retrospective, cross-sectional, and analytical chart review was performed for children who underwent GI endoscopy at Salmaniya Medical Complex, Bahrain, from 1995 to 2020. Demographic data, endoscopic indications, and findings were collected and compared. Results. Of 1,111 patients, 1,101 (99.1%) were included in the study. 589 (53.6%) patients were males. Median age at the time of endoscopy was 8 (interquartile range 3, 11) years. 1534 endoscopies were performed (1193 upper GI endoscopies (UGIE) and 341 colonoscopies) in 1296 sessions. The mean number of endoscopies per year was $59\pm 30.9$ procedures with 81.4% reduction noted after coronavirus pandemic ( $P<0.0001$ ). Ratio between UGIE to colonoscopy was 3.5 : 1. Median number of endoscopies per patient was one, ranging from one to eight procedures. 1153 (89%) sessions were diagnostic, and 143 (11.0%) were therapeutic. Main endoscopic indication was chronic abdominal pain (451 (40.9%) patients) followed by upper GI bleeding (302 (27.4%) patients). Overall positive yield was 68.1% (716/1052 procedures). Endoscopic yield varies according to the type of procedure ( $P=0.003$ ). Colonoscopy alone gave a higher yield (82.6%, 38/46 procedures) compared to combined procedures (75.4%, 141/187) and UGIE alone (65.6%, 537/819). Conclusions. This study emphasizes a careful selection of the type of endoscopic procedures, based on the expected endoscopic yield, to diagnose and treat pediatric GI diseases. In patients with chronic abdominal pain, endoscopy should be reserved as a second-line tool to avoid unnecessary use of invasive procedures.

Complications of esophageal strictures dilatation in children. A tertiary-center experience

OBJECTIVES

To report the results of endoscopic dilatation of esophageal strictures in children, its complications, and their management. The outcomes of esophageal dilatation differ according to the underlying etiology.

METHODS

The study included 46 patients who underwent esophageal dilatation between 2014-2019. All patients underwent a contrast study of the esophagus before endoscopic dilation to determine the location, number, and length of the narrowing. In addition, the type of dilators (balloon versus semi-rigid dilators), the number of dilatation sessions, the interval between them, and the duration of follow-up were also documented. The median age was 2.47 years, and 26 patients were females. Dysphagia was the main presenting symptom, and the leading cause of stricture was esophageal atresia.

RESULTS

The main treatment modality was endoscopic balloon dilatation (n=29, 63%). The esophageal diameter was significantly increased after dilation (9 [7-11] versus 12 [10-12.8]) mm; p less than 0.001). Topical mitomycin-C was used as adjuvant therapy in 3 patients (6.5%). Esophageal perforation was reported in 2 cases (4.3%). Patients needed a median of 3 dilatation sessions, 25-75th percentiles: 1-5, and the median duration between the first and last dilatation was 2.18 years 25-75th percentiles: 0.5-4.21.

CONCLUSION

Esophageal dilatation is effective for the management of children with esophageal stricture; however, repeated dilatation is frequent, especially in patients with corrosive strictures. Complications are not common, and open surgery is not frequently required.

Endoscopic dilation in pediatric esophageal strictures: a literature review

BACKGROUND

Esophageal strictures in pediatric age are a quite common condition due to different etiologies. Esophageal strictures can be divided in congenital, acquired and functional. Clinical manifestations are similar and when symptoms arise, endoscopic dilation is the treatment of choice. Our aim was to consider the efficacy of this technique in pediatric population, through a wide review of the literature.

METHOD

A search on PubMed/Medline was performed using "esophageal strictures", "endoscopic dilations" and "children" as key words. Medline, Scopus, PubMed publisher and Google Scholar were searched as well. As inclusion criteria, we selected clinical studies describing dilations applied to all type of esophageal strictures in children. Papers referred to single etiology strictures dilations or to adult population only were excluded, as well as literature-review articles.

RESULTS

We found 17 studies from 1989 to 2018. Overall, 738 patients in pediatric age underwent dilation for esophageal strictures with fixed diameter push-type dilators (bougie dilators) and/or radial expanding balloon dilators. Severe complications were observed in 33/738 patients (4,5%) and perforation was the most frequent (29/33). Conversion to surgery occurred only in 16 patients (2,2%).

CONCLUSIONS

Endoscopic dilation is the first-choice treatment of esophageal strictures, it can be considered a safe procedure in pediatric age. Both, fixed diameter push-type dilators and radial expanding balloon dilators, showed positive outcomes in term of clinical results and cases converted to surgery. However, it's essential to perform these procedure in specialized Centers by an experienced team, in order to reduce complications.

Efficacy and safety of endoscopic dilatation in the management of esophageal strictures in children

Objectives:

To determine the outcomes of endoscopic dilatation of esophageal strictures in children.

Methods:

Children younger than 18 years of age diagnosed with esophageal strictures over a period of 7 years (June 2010 to June 2017) were reviewed and analyzed retrospectively. The study took place at King Khalid University Hospital, Riyadh, Saudi Arabia. The patients’ clinical characteristics, endoscopic findings, and details of the strictures, treatment, and outcomes were documented.

Results:

Forty-three children with esophageal strictures were identified (median age, 8.1 years; range, 2-17 years; 23 [53.5%] boys). The median age at presentation was 2 years (range, 1-16 years), and the median follow-up period was 3 years (range, one month-17 years). Tracheoesophageal fistula (n=14, 32.6%), gastroesophageal reflux disease (n=10, 23.3%) and eosinophilic esophagitis (n=8, 18.6%) were the leading causes of esophageal strictures. Forty-three patients underwent 180 dilatation sessions; the median number of dilatation sessions per patient was 3 (range, 1-48), and the median interval between sessions was 8 weeks (range, 1-24 weeks). Among 180 dilatation sessions, 3 events (1.7%) of esophageal perforation were observed. The outcomes varied depending on the primary cause of the stricture; complete response was achieved the best in eosinophilic esophagitis-related strictures (87.5%), followed by anastomotic strictures post tracheoesophageal fistula repair (71.4%) and gastroesophageal reflux disease-related strictures (70%).

Conclusion:

Endoscopic dilatation is a safe and effective intervention in the management of esophageal strictures in children, with minimal complications when conducted by experts.

Use of endoscopic balloon dilation for benign esophageal stenosis in children: our 11 year experience

Endoscopic balloon dilation (EBD) is an established therapy for esophageal stenosis. To assess its usefulness in children, we reviewed 11 years of pediatric cases of EBD in our hospital. Over the last 11 years, EBD was performed on 14 pediatric patients (10 boys and four girls; 7 months-11 years) at our hospital. All EBD sessions were performed under general anesthesia and fluoroscopic monitoring. The sessions were repeated every week or alternate weeks until resolution of dysphagia or development of smooth endoscope passage. Stenosis was resolved in 14 of 14 patients (100%). None of the patients (0%) showed recurrence of stenosis. As for postoperative complications, mediastinitis occurred only in one patient (7.1%). The median number of session repeats for an individual patient was three (range 1-10). EBD is a safe and effective therapeutic modality for esophageal stenosis in children.