J Korean Radiol Soc.  1998 May;38(5):829-834. 10.3348/jkrs.1998.38.5.829.

Expandable Metallic Stents in the Palliative Treatment of Malignant Tracheobronchial Stenosis

• Park JW
• Jung GS
• Kim SM
• Lee SR
• Kim HS
• Huh JD
• Joh YD

• KMID: 1831855
• DOI: http://doi.org/10.3348/jkrs.1998.38.5.829

Abstract

PURPOSE: To report the outcome of using expandable metallic stent in the management of malignanttracheobronchial stenosis with dyspnea.
MATERIALS AND METHODS
Under fluoroscopic and bronchoscopic guidance,seven patients with malignant airway stenosis were treated with ten expandable metallic stents. The cause ofstenosis was metastasis from esophageal cancer in five patients, recurrent adenoid cystic carcinoma of the tracheain one, and primary lung cancer in one. The major sites of obstruction were the trachea in four patients, the leftmain bronchus in one, the trachea and left main bronchus in one, and the trachea and both bronchi in one. Chestradiography(n=7), bronchoscopy(n=5), pulmonary function test(PFT)(n=3), and spirometry(n=1) were performed beforeand after stent placement.
RESULTS
In all seven patients, the stent was successfully placed at the lesion sitesand dyspnea began to improve immediately. After the procedure, chest radiography and bronchoscopy showed anincrease in airway diameter. After stent placement, forced vital capacity (FVC) and forced expiratory volume inone second(FEV1) improved 53% and 56%, respectively. Peak flow velocity also changed from 46 L/min to 200 L/min.During median follow-up of 67(41-1565)days, one stent migration occurred. In one patient, proximal tumorovergrowth occurred, and in one, tumor ingrowth was treated with balloon dilatation.
CONCLUSION
For in thepalliative treatment of malignant tracheobronchial stenosis with dyspnea, placement of expandable metal steuts issafe and effective.

Keyword

Bronchi, neoplasms; Bronchi, stenosis or obstruction; Bronchi, interventional procedure; Trachea, neoplasms,Stents and prosthesis

MeSH Terms

Bronchi
Bronchoscopy
Carcinoma, Adenoid Cystic
Constriction, Pathologic*
Dilatation
Dyspnea
Esophageal Neoplasms
Follow-Up Studies
Forced Expiratory Volume
Humans
Lung Neoplasms
Neoplasm Metastasis
Palliative Care*
Radiography
Stents*
Thorax
Trachea
Vital Capacity