Flexible bronchoscopy in preterm infants with bronchopulmonary dysplasia: findings and complications in a matched control study.

Publisher: Springer Verlag Country of Publication: Germany NLM ID: 7603873 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1432-1076 (Electronic) Linking ISSN: 03406199 NLM ISO Abbreviation: Eur J Pediatr Subsets: MEDLINE

Publication: Berlin : Springer Verlag
Original Publication: Berlin, New York, Springer-Verlag.

Bronchopulmonary Dysplasia*/epidemiology ; Bronchopulmonary Dysplasia*/diagnosis ; Bronchoscopy*/methods ; Infant, Premature* ; Airway Obstruction*/etiology ; Airway Obstruction*/diagnosis ; Airway Obstruction*/epidemiology; Humans ; Male ; Female ; Retrospective Studies ; Case-Control Studies ; Infant, Newborn ; Infant

Bronchopulmonary dysplasia (BPD) poses a significant challenge as the most common late morbidity of preterm infants. This study aimed to evaluate airway abnormalities in infants with BPD who underwent flexible bronchoscopy (FB) to gain insights into the prevalence of upper airway obstruction and associated complications. A retrospective case-control study was conducted on BPD patients who underwent FB at a tertiary center between 2013 and 2023. BPD patients were matched (1:3) with a reference group based on age, gender, and ethnicity, who also had undergone FB. Demographic data, comorbidities, indications for FB, findings, and complications during and after FB were collected. The study included 50 BPD patients (mean age 1.26 ± 0.9 years, 58% males), and 150 controls. As expected, BPD patients had a lower gestational age, lower birth weight, and longer hospitalizations and were treated with more medications. Abnormal bronchoscopy findings were significantly more common in the BPD group compared to the reference group, with an increased rate of turbinate hypertrophy (OR [95% CI]: 3.44 [1.27-9.37], P = 0.014), adenoid hypertrophy (OR: 2.7 [1.38-5.29], P = 0.004), lingual tonsils (OR: 5.44 [1.29-27.4], P = 0.0024), subglottic stenosis (OR: 6.95 [2.08-27.1], P = 0.002), and tracheomalacia (OR: 2.98 [1.06-8.19], P = 0.034). Complications including desaturation (OR: 3.89 [1.32-11.7], P = 0.013) and PICU admission (OR: 16.6 [2.58-322], P = 0.011) were more frequent in the BPD than in the reference group.
Conclusion: The study revealed a high prevalence of structural anomalies leading to upper airway obstruction and complications in infants with BPD undergoing FB. These findings emphasize the importance of careful consideration and preparation for bronchoscopic procedures in this vulnerable population.
What Is Known: • Bronchopulmonary dysplasia (BPD) represents the most prevalent late morbidity among preterm infants. • Preterm infants diagnosed with BPD frequently undergo diagnostic procedures, including flexible and rigid bronchoscopies, to identify structural pathologies within the respiratory tract.
What Is New: • A significantly higher prevalence of structural anomalies leading to upper airway obstruction was observed in the BPD group compared to controls. • The incidence of complications during flexible bronchoscopy was higher in the BPD group than in controls.
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)

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Keywords: Bronchopulmonary dysplasia; Children; Flexible bronchoscopy; Prematurity

Date Created: 20240908 Date Completed: 20241014 Latest Revision: 20241120

20241120

10.1007/s00431-024-05750-w

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