Extraction of airway foreign bodies with bronchoscopy under general anesthesia in adults: an analysis of 38 cases

Foreign Body in the Tracheobronchial Tree as a Cause of Hemoptysis in an Adult Without Risk Factors for Aspiration: A Case Report

Although aspiration of a foreign body into the trachea and bronchi can occur in all age groups, it is more common in infants and young children. Foreign bodies in the tracheobronchial tree are uncommon in adults and mainly present in patients with dysphagia and an altered level of consciousness. The identification of foreign bodies in the tracheobronchial tree is frequently overlooked or delayed, leading patients to present later with chronic symptoms and potential complications. These complications may include persistent coughing, wheezing, obstructive pneumonitis, bronchiectasis, and abscess formation secondary to recurrent pulmonary infections. This article aims to present the case of a 27-year-old patient without risk factors for aspiration who has experienced recurrent self-limiting hemoptysis episodes for five years. Bronchoscopy revealed a foreign body at the entrance to the middle lobe bronchus. The presence of a foreign body in the tracheobronchial tree should be considered in any patient with recurrent hemoptysis. Bronchoscopy leads to accurate diagnosis, treatment, and prevention of complications.

Waiting to exhale: Retrieval of an unusual bronchial foreign body

ABSTRACT

Foreign-body aspiration in adults is considerably less common than in children. The clinical course can be life-threatening but often presents in a more indolent manner, leading to difficulties with diagnosis. We report the retrieval of a buprenorphine-naloxone wrapper by flexible bronchoscopy in a 44-year-old male patient with COVID-19 who was on mechanical ventilation. Following removal, the patient completed treatment for COVID-19, his respiratory status improved, and he was discharged from the hospital. Flexible bronchoscopy is an effective means of diagnosis and retrieval of foreign bodies in the distal airway.

Investigation and Analysis of the Influence of Vegetative Tracheobronchial Foreign Body on Airflow Field

The BSL k-ω turbulence model was used to numerically simulate the inspiratory airflow of the airway with foreign bodies using a real CT scan human airway model. The paper selects three foreign bodies with different diameters, three different foreign body positions, and three different breathing intensities, and the FLUENT software is used to perform numerical simulation. This study has found that the increase in the diameter of the foreign body and flow velocity will make the flow structure in the airway more complicated. The airway pressure will increase so that the resistance of breathing will increase, and the shear force will also increase, which hurt the airway. The impact of the foreign body on the left side on the flow structure in the airway is less than that of the foreign body on the right side. The foreign body on the left side causes the pressure drop in the airway to be higher than that on the right side. Moreover, sharp changes in pressure driving force and airway curvature will affect the airflow pattern of the central airway. We concluded that foreign matter has a great influence on the characteristics of the airflow structure, and more research is needed to increase the understanding of the airflow pattern under the condition of foreign matter in the airway, and the research helps doctors avoid the influence of airflow when removing foreign bodies in the airway.