Multidisciplinary approach to paediatric aerodigestive disorders: A single-centre longitudinal observational study

Initial evaluation of a multidisciplinary pediatric aerodigestive program in a Brazilian hospital: challenges and mitigation strategies

OBJECTIVE

To identify clinical and epidemiological characteristics of children evaluated by the pediatric aerodigestive program at the beginning of its activity, describe challenges in follow-up, and suggest mitigation strategies.

METHODS

A case series was conducted describing the first 25 patients discussed by the aerodigestive team from a Brazilian quaternary public university hospital between April 2019 and October 2020. The median follow-up was 37 months.

RESULTS

During the study period 25 children were seen by the group and the median age at first assessment was 45.7 months old. Eight children had a primary airway abnormality, five had a tracheostomy. Nine children had genetic disorders and one had esophageal atresia. Dysphagia was present in 80% of the patients, 68% had a history of chronic or recurrent lung disease, 64% had a gastroenterological diagnosis and 56% had neurological impairment. Moderate to severe dysphagia was identified in 12 children and 7 of these had an exclusive oral diet at the time. The majority of children (72%) had 3 or more comorbidities. Following team discussion, a change in feeding strategy was suggested in 56% of the children. The most frequently ordered exam was pHmetry (44%) and gastrostomy was the surgical procedure with the longest waiting list.

CONCLUSIONS

Dysphagia was the most frequent issue encountered in this initial group of aerodigestive patients. Pediatricians caring for these children must be involved in aerodigestive team discussions and hospital policies must be revised to facilitate access to exams and procedures needed for this population.

Gastrointestinal factors associated with risk of bronchiectasis in children

OBJECTIVE

To evaluate gastrointestinal (GI) risk factors for bronchiectasis in children. We hypothesized that upper GI tract dysmotility would be associated with increased risk of bronchiectasis.

STUDY DESIGN

Subjects in this retrospective cohort study included those evaluated for persistent pulmonary symptoms in the Aerodigestive Center at Boston Children's Hospital who underwent chest computed tomography (CT) between 2002 and 2019. To determine gastrointestinal predictors of bronchiectasis, baseline characteristics, comorbidities, enteral tube status, medications received, gastroesophageal reflux burden, adequacy of swallow function, esophageal dysmotility, gastric dysmotility, and neutrophil count on bronchoalveolar lavage (BAL) were compared between patients with and without bronchiectasis. Proportions were compared with Fisher's exact test and binary logistic regression with stepwise selection was used for multivariate analysis. ROC analyses were utilized to compare BAL neutrophils and bronchiectasis.

RESULTS

Of 192 subjects, 24% were found to have evidence of bronchiectasis on chest CT at age 7.9 ± 0.5 years. Enteral tubes (OR 5.77, 95% CI 2.25-14.83, p < 0.001) and increased BAL neutrophil count (OR 5.79, 95% CI 1.87-17.94, p = 0.002) were associated with increased risk while neurologic comorbidities were associated with decreased risk (OR 0.24, 95% CI 0.09-0.66, p = 0.006). Gastroesophageal reflux was not found to be a significant risk factor. Neutrophil counts >10% had 72% sensitivity and 60% specificity for identifying bronchiectasis.

CONCLUSIONS

Enteral tubes were associated with significantly increased risk of bronchiectasis but gastroesophageal reflux was not. Providers should consider obtaining chest CT to evaluate for bronchiectasis in children found to have unexplained elevated BAL neutrophil count.

Flexible Bronchoscopy Diagnosis of Uncommon Congenital H-type Tracheoesophageal Fistula, Dual Fistulae, Bronchoesophageal Fistula, and Recurrence of Fistula in Children: A 20-year Experience

BACKGROUND

Interventional pediatric flexible bronchoscopy has many advantages over radiologic investigations in diagnosing uncommon congenital H-type tracheoesophageal fistula (TEF), dual TEF, bronchoesophageal fistula (BEF) and fistula recurrence including higher rates of identification and anatomic localization with guide wire cannulation. We compare the diagnostic utility of flexible bronchoscopy to radiologic techniques for congenital aerodigestive fistula.

METHODS

A single center retrospective review was completed of all cases of pediatric TEF and BEF diagnosed with flexible bronchoscopy between January 2000 and November 2020.

RESULTS

Fistulae were diagnosed 21 times in 18 patients at a median age of 1.22 years (interquartile range: 0.50 to 2.99). The median time from diagnosis to repair was 17.5 days (interquartile range: 5.5 to 43). Symptoms commonly related to fistula were found in all patients. Uncommon fistulae included single H-type TEF (n=10, 47.6%), dual H-type TEF (n=2, 9.5%), dual proximal and distal TEF with esophageal atresia (n=5, 23.8%), TEF recurrence (n=2, 14.3%), BEF (n=1, 4.8%), and a BEF recurrence (n=1, 4.8%). Flexible bronchoscopy confirmed the diagnosis in all fistulae using a guide wire cannulation or methylene blue dye injection. A combined procedure with simultaneous bronchoscopy and esophagoscopy was used for 6 fistulae. The positive examination rate was 75% for bronchoscopy compared with 2.6% for contrast swallow studies and 28.6% for tube esophagograms.

CONCLUSIONS

Flexible bronchoscopy should be considered as a first line investigation in uncommon aerodigestive fistulae. In the absence of a skilled bronchoscopist, the best radiologic investigation is a pull-back tube esophagogram but may still require endoscopic confirmation at the time of fistula repair.