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Published on: December 26, 2013
Face-mask CPAP as palliative support for diffuse tracheobronchomalacia from ring agenesis in an infant: When sleep
Abir Bouhamdi1,2, Yassin Chefchaou1, Nahla En-Nejjari3
1Sleep Medicine Center, Hassan II University Hospital, Epidemiology and Health Sciences Research Laboratory, Sidi Mohamed Ben Abdellah University, PO Box: 1835, Route Sidi Harazem, 30050, Fez, Morocco.
Insights
Congenital tracheal ring agenesis causes severe airway collapse. In this case, continuous positive airway pressure (CPAP) provided temporary support for diffuse tracheobronchomalacia (TBM) in an infant, highlighting its palliative role.
Area of Science:
- Pediatric Pulmonology
- Rare Diseases
- Airway Management
Background:
- Congenital absence or deficiency of tracheal rings is exceptionally rare.
- It can lead to diffuse tracheobronchomalacia (TBM) and life-threatening airway collapse.
- Infants may present with stridor, cyanotic spells, and nocturnal desaturation.
Abstract:
Congenital absence or deficiency of tracheal rings is exceptionally rare and may cause diffuse tracheobronchomalacia (TBM) with life-threatening airway collapse. A 6-month-old girl had persistent stridor from birth, cyanotic spells during feeding, and nocturnal desaturation. Cervicothoracic CT suggested severe airway collapse, and rigid bronchoscopy showed a flattened trachea and main bronchi without visible cartilaginous rings, consistent with ring agenesis and diffuse TBM. Curative surgery was not feasible. After in-hospital titration during a nap, face-mask CPAP with heated humidification was prescribed during sleep and postprandial windows. A minimal effective pressure of 6 cmH2O stabilized oxygenation and reduced cyanotic episodes, with good tolerance and device-recorded adherence. Despite transient clinical benefit, the infant died at one and a half years of age (18 months) due to disease progression. In extensive congenital TBM from ring agenesis not amenable to reconstruction, targeted face-mask CPAP can provide palliative/bridging support by counteracting dynamic airway collapse at times of highest vulnerability (sleep and after feeding). This case highlights practical aspects of titration, interface choice, and monitoring in infants.
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