• Tuberculosis and Respiratory Diseases
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• v.57 no.1
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• pp.72-77
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• 2004

Background : A tracheobronchial obstruction in lung cancer is associated with significant morbidity and mortality due to dyspnea, cough, hemoptysis, and recurrent respiratory infection. It is well known that one of standard treatments is photodynamic therapy (PDT) in tracheobronchial obstruction after radiotherapy, chemotherapy, and/or surgery. We reported here the role of PDT in airway obstruction in patients advanced lung cancer. Method : Pre-treatment protocol consisted of clinical, radiologic, and bronchoscopic examination, pulmonary function test, and assessment of Karnofsky performance status. A 2 mg/kg of porfimer sodium was injected intravenously, and then followed by cylindrical and/or interstitial irradiation with 630 nm of laser after 48 hours. The repeated bronchoscopy for debridement of necrotic tissue and re-illumination was performed after 48 hours. Result : Improved airway obstruction and selective tumor necrosis were achieved by photodynamic therapy in all cases. Dyspnea and performance status were improved in three cases. A purulent sputum, fever and hemoptysis were improved in one of five cases. After PDT, all patients showed temporarily aggravation of dyspnea, two of five showed febrile reaction for a few days and nobody presented photosensitivity reaction, hemoptysis and respiratory failure. Conclusion : Our experiences of PDT are effective in palliation of inoperable advanced lung cancer in terms of tracheobronchial obstruction.

• Korean Journal of Bronchoesophagology
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• v.16 no.1
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• pp.47-50
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• 2010

Fracture of tracheostomy tube with subsequent migration into the tracheobronchial tree is rare, but tracheobronchial foreign body in child carries the potentially fatal risk of respiratory obstruction, We report a case of a 5-year-old girl who had aspirated a fractured tracheostomy tube which was removed under rigid bronchoscope.

• Journal of Chest Surgery
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• v.35 no.2
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• pp.149-152
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• 2002

We report successful application of dual trachcobronchial stcnt to the diffuse tracheal stenosis. An one-month-old boy was transferred to the emergency room due to tachypnea and respiratory difficulty with COB retention. Preoperative computed tomography revealed pulmonary artery sling with diffuse tracheal stenosis. We found that the diameter of the both main bronchus was less than 3mm and the trachea was a complete ring. We divided the left pulmonary artery and implanted it to the main pulmonary artery under cardiopulmonary bypass. After that, tracheoplasty was performed with autologous pericardium. However, after the initial measures, CO2 retention and respiratory difficulty persisted due to the granulation tissue and dynamic obstruction of the airway ensued by the overlying pericardial flap. Therefore, we decided to apply a single tracheal stunt. After the insertion of tracheal stent, residual stenosis of the both main bronchus opening continued to cause respiratory difficulty Finally we applied dual tracheobronchial stent and resolved the airway obstruction.

• Journal of Chest Surgery
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• v.10 no.1
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• pp.38-43
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• 1977

With the adevance of widespread mechanization and high-speed era, the incidence of traumatic rupture of the tracheobronchial tree has been increased considerably. We have experienced these diseased of the 3 cases in our department. The first case was a 25 year old male who was severe dyspneic and subcutaneous emphysema, hemoptysis, and hemopneumothorax of both side were noted. During tracheostomy, it was found that the 2net ring of the trachea was ruptured. No definitive procedure was made on admission. Corrective surgery was performed with end-to-end anastomosis on 31 post-traumatic day. The second case was a 43 year old female who received multiple stab wounds on the anterior neck and it was found that the cricoid cartilage was transected partially. The injured cartilage was approximated with interrupted suture of No. 600 wire. The third case was a 19 year old male who had sustained a compression chest injury without external wound or rib fracture. At five days after trauma, he had suffered from dyspnea, and obstruction of the left main bronchus due to traumatic bronchial rupture was confirmed by means of bronchoscopy and bronchography at two weeks after the trauma. End-to-end anastomosis of the bronchus was performed and the left lung was aerated well. Mild postoperative stenosis of trachea was remained in the first case. Others were uneventful.

• Tuberculosis and Respiratory Diseases
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• v.59 no.1
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• pp.62-68
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• 2005

Background : The clinical results of a Natural stent in patients with a benign tracheobronchial stenosis were examined by comparing the clinical outcomes and complications of those patients who underwent Dumon and Natural stenting in the management of benign airway stenosis. Methods : The medical records of 94 patients (39 Dumon and 55 Natural stent) with a benign tracheobronchial stenosis were reviewed and analyzed. Results : Post-tuberculous stenosis was the leading indication for airway stenting (74%), which was followed by post-intubation stenosis (21%). After intervention, the dyspnea had improved among those patients who underwent Dumon (90%) and Natural (86%) stenting. After stabilizing the dyspnea, the stent could be successfully removed in half of the patients who underwent both Dumon (54%) and Natural (49%) stenting. During the 42 month follow-up period, the complication rate was similar in those patients who underwent Dumon and Natural stenting: migration (46% vs 53%), granulation tissue formation (36% vs 49%), mucostasis (21% vs 16%) and restenosis (51% vs 36%). Conclusion : The clinical results of Natural airway stent was similar to those of Dumon stent in the management of benign tracheobronchial stenosis.

• Korean Journal of Bronchoesophagology
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• v.10 no.2
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• pp.5-8
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• 2004

Stenosing airway disease is classified as intraluminal obstruction, extrinsic compression, and malacia by the anatomical site of the lesion. Stenting therapy is indicated for symptomatic relief of life-threatening dyspnea caused by the last two types. Airway stents are made with metal mesh and/or silicone rubber, and currently more than 20 kinds of stent are available. Among many kinds of silicone stent, the Dumon stent is mostly widely used for benign and malignant airway stenoses, but general anesthesia and rigid bronchoscopy are needed for insertion. It can be removed when the stenosing airway disease subsides completely. In many clinical studies, most patients $(85-90\%)$ improved immediately after stenting, and procedure-related mortality was low $(<3\%)$ in experienced centers. Stent displacement, mucus impaction, and granulation tissue formation are potential complications. Stenting is one of many effective therapeutic modalities for stenosing central airway disease. Careful patient selection, experiences, and continuous development of new technology will bring better results.

• Journal of Chest Surgery
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• v.53 no.6
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• pp.400-402
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• 2020

Primary tracheobronchial lipoma is an extremely rare entity, the diagnosis of which is often missed initially. Cases are generally diagnosed late after initial treatment for asthma and bronchitis. We report a case of a 42-year-old man with a left main bronchus lipoma that caused near-total obstruction. The lipoma was treated by bronchoscopic resection with an electrosurgical snare and cryoablation.

• Journal of Chest Surgery
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• v.36 no.4
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• pp.285-288
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• 2003

Cytomegalovirus (CMV) pneumonitis leading to inflammation and obstruction of the tracheobronchial tree may cause the cystic changes in the lung. We performed segmentectomy of lung under the diagnosis of congenital cystic lung disease in an infant of 2 weeks presenting severe respiratory failure. Histology and serology confirmed congenital CMV bronchiolopneumonitis.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.46 no.6
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• pp.422-427
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• 2020

Management of maxillofacial trauma includes primary care, in which diagnosis and management of dentoalveolar injury play a vital role. Due to the impact sustained during a maxillofacial injury (whether direct or indirect), dentoalveolar injuries can occur, leading to fracture and displacement of teeth and associated alveolar bone into the surrounding soft tissues and associated structures, such as the maxillary sinus, nasal cavity, upper respiratory tract, tracheobronchial tree, or gastrointestinal tract. Undiagnosed displaced teeth may cause complications such as airway obstruction. This paper reports a case of displaced teeth in the nasal cavity and gastrointestinal tract and highlights the management protocol for displaced teeth secondary to maxillofacial trauma.

• Korean Journal of Bronchoesophagology
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• v.2 no.2
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• pp.238-243
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• 1996

Aspiration of foreign bodies into the tracheobronchial tree is unusual in adults and it may result in Proximal airway obstruction and acute life-threatening asphyxia. It can be diagnosed by history of aspiration or visualizing the foreign body by chest roentgenogram or bronchoscopy. But it is rarely considered in adults with subacute or chronic respiratory symptoms without a definite history which suggests an aspiration. A 70-year-old woman was admitted to the hospital due to productive cough for two months and dyspnea which aggravated since the day before admission. Chest X-ray showed Pneumonic infiltration on left upper lobe and right lower lobe. Despite several days of conventional therapy, the patient complained of severe dyspnea and wheezing. We performed chest CT to rule out endobronchial stenosis, and it revealed the narrowing of left main stem bronchus compatible with endobronchial tuberculosis. Fiberoptic bronchoscopy for confirmation disclosed a $3.2{\times}0.7{\times}0.2$cm sized foreign body located longitudinally at the left main stem bronchus. We removed it with alligator forcep and it proved In be a piece of artificial denture. The patient remembered losing it while severe coughing on the day before admission. The microscopic examination of bronchial washing fluid revealed numerous acid fast bacilli. After removal of the foreign body, the patient showed marked improvement in symptom and pulmonary function test. Here we report a case of Pulmonary aspiration of foreign body which is confused with endobronchial tuberculosis with a review of the literature.