Decompression through Tracheobronchial Endoscopy of Bronchial Atresia Presenting as Massive Pulmonary Tumor: A New Indication for Fetoscopic Surgery

This is the first report of fetoscopy to successfully treat a case of bilobar bronchial atresia presenting in the form of a massive right lung tumor causing severe thoracic compression with mediastinal shift, pulmonary hypoplasia and eventually fetal hydrops. The presence of an echolucent tubular structure in the pulmonary hilum was identified as the intrapulmonary continuation of the interrupted main bronchus, and led to the diagnosis of main bronchial atresia. After extensive discussion and counseling, a fetoscopic operation was designed and indicated. The procedure consisted of a fetal tracheoscopy and access to the right main bronchus, which was perforated with a diode laser until a communication with the dead end of the intrapulmonary main bronchus was achieved. After the operation a significant reduction in size was observed, hydrops and mediastinal shift disappeared and O/E LHR increased to 85%. The fetus was born at term and lobectomy of two dysplastic pulmonary lobes was performed. The infant is developing well at 14 months of age. This report demonstrates that fetoscopic airway decompression can achieve fetal survival in the rare event of main bronchus atresia.

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