Achalasia in Children-Clinical Presentation, Diagnosis, Long-Term Treatment Outcomes, and Quality of Life

Laparoscopic Heller-Dor Is a Persistently Effective Treatment for Achalasia Even in Pediatric Patients: A 25-Year Experience at a Single Tertiary Center

BACKGROUND

 Esophageal achalasia (EA) is a rare primary motility disorder in any age group, and particularly rare in the pediatric population, with a reported incidence of 0.18 per 100,000 children a year. EA in pediatric age is currently treated in the same way as in adults, but this approach is based on only a few studies on small case series. The aim of this retrospective study was to assess the long-term outcome of the laparoscopic Heller-Dor (LHD) procedure when performed in pediatric patients with EA at our university hospital.

MATERIALS AND METHODS

 We considered children and adolescents younger than 16 years old diagnosed with EA and treated with LHD between 1996 and 2022. Clinical data were prospectively collected in an ongoing database. Symptoms were recorded and their severity was calculated using the Eckardt score. Barium swallow, esophageal manometry (conventional or high-resolution), and endoscopy were performed before and after the surgical procedure.

RESULTS

 During the study period, 40 children with a median age of 14 years (interquartile range [IQR]: 11-15) underwent LHD. At a median follow-up of 10.5 years (IQR: 4.5-13.9), a good outcome was achieved in 36/40 patients (90%). Two of the four patients whose surgical procedure failed underwent complementary pneumatic dilations successfully, thus increasing the overall success rate to 95%. A previous endoscopic treatment (in five patients) did not affect the final outcome (p = 0.49). An intraoperative mucosal lesion was detected in only one patient (2.5%) and was repaired at the time without further consequences. During the follow-up, 22 patients underwent endoscopy, and 17 had pH monitoring as well: only 2 of these patients showed reflux esophagitis at endoscopy (one of them with abnormal findings on pH monitoring), amounting to a 9.1% rate of instrumentally confirmed postoperative reflux.

CONCLUSION

 LHD is a safe and persistently effective treatment for EA in pediatric age, with a success rate comparable with what is usually obtained in adults, and better than what has been reported to date in the pediatric literature. Adding a fundoplication certainly helps ensure an optimal long-term control of any gastroesophageal reflux induced by the myotomy.

Recent advances in the treatment of gastrointestinal motility disorders in children

INTRODUCTION

Pediatric gastrointestinal motility disorders represent some of the most challenging clinical conditions with largely undefined pathogenetic pathways and therefore limited therapeutic options. Herein, we provide an overview of the recent advances in treatment options for these disorders and their clinical impact.

AREAS COVERED

PubMed and Medline databases were searched for relevant articles related to the treatment of achalasia, esophageal atresia, gastroparesis, PIPO and constipation published between 2017 and 2022. In this article, we review and summarize recent advances in management of gastrointestinal motility disorders in children with a particular focus on emerging therapies as well as novel diagnostic modalities that help guide their application or develop new, more targeted treatments.

EXPERT OPINION

Gastrointestinal motility disorders represent one of the most challenging conundrums in pediatric age and despite significant advances in investigative tools, the palette of treatment options remain limited. Overall, while pharmacological options have failed to bring a curative solution, recent advances in minimal invasive therapeutic and diagnostic techniques have emerged as potential keys to symptom and quality of life improvement, such as ENDOFLIP, POEM, cine-MRI, fecal microbiota transplantation.

Evaluating the molecular and genetic mechanisms underlying gut motility disorders

INTRODUCTION

Gastrointestinal (GI) motility disorders comprise a wide range of different diseases affecting the structural or functional integrity of the GI neuromusculature. Their clinical presentation and burden of disease depends on the predominant location and extent of gut involvement as well as the component of the gut neuromusculature affected.

AREAS COVERED

A comprehensive literature review was conducted using the PubMed and Medline databases to identify articles related to GI motility and functional disorders, published between 2016 and 2023. In this article, we highlight the current knowledge of molecular and genetic mechanisms underlying GI dysmotility, including disorders of gut-brain interaction, which involve both GI motor and sensory disturbance.

EXPERT OPINION

Although the pathophysiology and molecular mechanisms underlying many such disorders remain unclear, recent advances in the assessment of intestinal tissue samples, genetic testing with the application of 'omics' technologies and the use of animal models will provide better insights into disease pathogenesis as well as opportunities to improve therapy.

Quality-of-life Assessment among Children with Esophageal Achalasia

Purpose

Analyze the surgical management strategy and the current effects on Quality of Life of diagnosed Esophageal Achalasia (EA) patients in our department, with an assessment of the incidence, clinical course, and related disorders.

Methods

Data was based on a retrospective review of all children who received achalasia treatment at our department between 2008 and 2022. Using the Pediatric Quality of Life Inventory Generic Core (PedsQL) Scales and the Pediatric-QL Gastrointestinal Symptoms Module (GI-PedsQL), we evaluated the long-term effects of this diagnosis on our patients' quality of life.

Results

Esophageal achalasia (EA) was identified in a total of 13 cases (F: 7; M: 6). The mean patient delay was 27.90 months, and the median age was 6.5 years at diagnosis (2 months to 15 years). Regurgitation was the most frequently observed symptom, and the median follow-up was 7.32 (3- 30.7) months. There were descriptions of associations with Allgrove syndrome (n=7) and Down syndrome (n=1). All patients were treated by Open Heller myotomy (OHM) with one patient (n=1) initially treated by pneumatic dilatation (PD). In all 13 laparotomy myotomies, simultaneous fundoplication was performed using the DOR (n=12) and THAL (n=1) techniques. At follow-up, 12 patients had complete symptom relief with 1 patient exhibiting a persistence of symptoms. All 13 patients were prospectively contacted with a median time from latest check-up to date of inclusion of 2.9 (0.3-8.8) years. In comparison to data from a control group of EA patients, the overall PedsQL score of our patients was 72/100 (±17), with higher established scores in physical and emotional functioning but lower scores in social and school settings. On the other hand, when compared to a control group presenting with a gastroesophageal reflux disease (GERD), the GI-PedsQL overall score in our patients was higher with a 76/100 (±14.9), but they scored significantly lower in the dimensions: Foods and drinks limitations, difficulty swallowing, heartburn and vomiting.

Discussion

Our study group's characteristics join most of the published literature with 54% of our patients presenting with Allgrove syndrome but it also joins the much rarer descriptions of Achalasia and Down's syndrome association with a singular case. The clinical course of our diagnosis process mainly consisted of timed esophagram and UGI endoscopy, lacking significantly in HREM evaluations but was efficient enough in guiding the surgical management. Our findings confirm the safety and effectiveness of Open Heller's myotomy with a success rate of 92.3% However, we concede that a laparoscopic approach should be further adopted if no contradiction is found. Moreover, we presented insight on long term QoL of patients posteriori to HM which was in concordance with other global experiences where patients reported dissatisfaction with their health and limited lifestyle. This significant negative impact was prominently present in comparison to healthy control groups as well as patients with inflammatory bowel diseases and compels a much needed discussion on the major chronic repercussions of Esophageal Achalasia in children.

Conclusion

Even when managed by interdisciplinary teams of professionals, managing esophageal achalasia in specialized institutions is still a subject of debate. Early pediatric diagnosis is best achieved with routine physiological function tests and HREM. Moreover, more research is required to assess long-term Quality of Life. Standardized lifelong follow-up and qualified resources, both human and technological, are required to improve postoperative outcomes.

Peroral Endoscopic Myotomy for Pediatric Achalasia: A Retrospective Analysis of 21 Cases With a Minimum Follow-Up of 5 Years

BACKGROUND

Peroral endoscopic myotomy (POEM) has shown promising short-term safety and efficacy in pediatric patients, while long-term outcomes are largely unknown. This study aimed to assess the clinical effects of POEM for pediatric achalasia who had a follow-up of at least 5 years.

METHODS

Pediatric patients from a single center who underwent a POEM between October 2011 and November 2016 were, respectively, collected and analyzed for long-term clinical outcomes. Patients were contacted to evaluate their current symptoms and encouraged repeat endoscopy and manometry. The clinical success, procedure-related parameters, adverse events, gastroesophageal reflux disease after POEM, and quality of life were evaluated.

RESULTS

A total of twenty-four patients who underwent POEM in our center were studied, with a mean age of 14.42 ± 2.65. Two of the 24 patients (8.3%) had previous treatment. The mean of the procedure time was 58.67 ± 19.10 min, 8.3% (2/24) of patients experienced perioperative adverse events. The current symptom scores were obtained from 21 patients at a mean follow-up of 92.57 months, the remainder were lost to follow-up after a mean of 38 months. Eckardt scores were significantly improved from preoperative baseline (preoperative 7.67 ± 1.62 vs. current 0.86 ± 1.28, P < 0.001). Long-term overall success was achieved in 95.8% of patients and none required retreatment for symptoms. 12.5% of patients were suffered from clinical reflux. 76.2% of patients expressed satisfaction with POEM. No severe adverse events were observed during the operation and the 5-years follow-up.

CONCLUSION

POEM resulted in successful symptomatic mitigation in a majority of pediatric patients after 5 years. A multi-center large-scale, prospective study is necessary for a confirmed conclusion.

Esophageal Dysphagia in Children: State of the Art and Proposal for a Symptom-Based Diagnostic Approach

Pediatric esophageal dysphagia (PED) is an infrequent condition that can be determined by a large number of disorders. The etiologic diagnosis is challenging due to overlapping clinical phenotypes and to the absence of pediatric diagnostic guidelines. This review aims to summarize the most relevant causes of ED during childhood, highlight the clinical scenarios of PED presentation and discuss the indications of available diagnostic tools. Available information supports that PED should always be investigated as it can underlie life-threatening conditions (e.g., foreign body ingestion, mediastinal tumors), represent the complication of benign disorders (e.g., peptic stenosis) or constitute the manifestation of organic diseases (e.g., eosinophilic esophagitis, achalasia). Therefore, the diagnosis of functional PED should be made only after excluding mucosal, structural, or motility esophageal abnormalities. Several clinical features may contribute to the diagnosis of PED. Among the latter, we identified several clinical key elements, relevant complementary-symptoms and predisposing factors, and organized them in a multi-level, hierarchical, circle diagram able to guide the clinician through the diagnostic work-up of PED. The most appropriate investigational method(s) should be chosen based on the diagnostic hypothesis: esophagogastroduodenoscopy has highest diagnostic yield for mucosal disorders, barium swallow has greater sensitivity in detecting achalasia and structural abnormalities, chest CT/MR inform on the mediastinum, manometry is most sensitive in detecting motility disorders, while pH-MII measures gastroesophageal reflux. Further studies are needed to define the epidemiology of PED, determine the prevalence of individual underlying etiologies, and assess the diagnostic value of investigational methods as to develop a reliable diagnostic algorithm.