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Aerosol generating procedures are avoided for COVID-19 patients to lower the risk of transmission to healthcare providers. However, when bronchoscopy is indicated, it remains unclear if the procedure performed under general anesthesia leads to contamination of the surroundings and if standard endoscopy reprocessing methods are effective in eradicating SARS-CoV-2. We share our experience of bronchoscopic retrieval of airway foreign body under general anesthesia in a patient tested positive for novel 2019 coronavirus disease (COVID 19). We focus on anesthesia techniques to minimise aerosolization.

Airway involvement, such as airway invasion, compression, and tracheobronchoesophageal fistula (TEF), in esophageal cancer is associated with significant morbidity. However, the risk factors and outcomes of airway complications remain unclear, with limited evidence to guide management.This retrospective analysis included 804 patients with a diagnosis of esophageal cancer from 1998 to 2018 at a tertiary care medical center (Singapore General Hospital, Singapore). Patients' demographics, treatment details, and airway involvement, as determined by bronchoscopic evaluation or computed tomographic imaging, were recorded and analyzed to determine risk factors and outcomes of airway involvement.The incidence of airway involvement and TEF was 36.6% and 13.1%, respectively. Airway involvement was associated with reduced survival from the time of diagnosis (hazard ratio, 1.52; 95% confidence interval [CI], 1.30 to 1.79) and increased hospitalizations per year (4.53 ± 4.80 vs 2.75 ± 3.68; P.001). On multivariate analysis, midesophageal tumors (odds ratio [OR], 11.0; 95% CI, 6.3 to 19.0) and upper esophageal tumors (OR, 8.5; 95% CI, 4.7 to 15.6), previous treatment with esophageal stenting (OR, 17.8; 95% CI, 4.1 to 77.6), and chemotherapy or radiotherapy were associated with development of airway involvement. In patients with TEF, treatment with chemotherapy (OR, 0.34; 95% CI, 0.20 to 0.60) and combined airway and esophageal stenting (OR, 0.48; 95% CI, 0.25 to 0.91) were independently associated with improved survival.Airway involvement and TEF are common and are associated with increased morbidity and poorer survival. Clinicians should remain vigilant for airway complications after treatment with esophageal stenting, chemotherapy, or radiotherapy, especially in patients with midesophageal and upper esophageal cancers. In patients with TEFs, survival is improved when they are treated with airway stenting, esophageal stenting, or chemotherapy.

An elderly woman with post-tuberculous stricture of the lower trachea and main bronchi underwent laser re-canalization, balloon dilation, and silicone stent insertion in the lower trachea and main bronchi. Subsequently she had recurrent dyspnea develop due to obstructing granulomas, which necessitated four endoscopic procedures in 2 years. The tracheal stent was removed and topical mitomycin-C was applied using saturated pledgets at a dose of 0.5 mg/mL for 2 minutes each over the lower trachea and both orifices of the main bronchi. Follow-up for 24 months showed no recurrence of symptoms. Bronchoscopy and spirometry performed at 2, 6, and 12 months showed resolution of the granulomas.