Journal of Nippon Medical School: Vol.68 No.4 page.318

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ArticleTitle Study on the Treatment of Tracheobronchial Stenosis using Expandable Metallic Stents

AuthorList Xiangying Xu^{1, 3}, Hiroyuki Tajima¹, Michihito Ishioh¹, Jun Watari¹, Tsuguhiro Miyashita¹, Tatsuo Kumazaki¹ and Ryo Ogawa²

Affiliation ¹Department of Radiology and Center for Advanced Medical Technology, Nippon Medical School, ²Department of Anesthesiology, Nippon Medical School, ³Department of Radiotherapy, Third Hospital, Harbin Medical University, Heilongjiang Province, China

Language EN

Volume 68

Issue 4

Year 2001

Page 318-327

Received February 21, 2001

Accepted March 28, 2001

Keywords stent and prostheses, lung neoplasms, tracheal stenosis or obstruction, bronchial stenosis or obstruction, complications

Abstract The purpose of this study is to clarify the clinical usefulness of Gianturco-Z stent (G-Z stent) for the management of malignant and benign tracheobronchial stenosis. Seventy-three stents were used in 30 patients. In 20 cases, we used the so-called "stent-in-stent" method. Twenty-four patients were grade 5, and 6 were grade 4 according to the Hugh-Jones classification of respiratory status. The technical success rates, clinical condition, respiratory status, blood gas analysis, survival rate, and complications were reviewed on the basis of the patients'medical records and radiographs. All stents were successfully placed in the appropriate position. After the procedure, respiratory status improved in 97% (29/30) of the patients. PaO₂ increased statistically (p<0.05), and PaCO₂ decreased one week after the treatment. Mean survival of 30 patients after stent placement was 123 days. Mean survival in 9 malignant patients treated in combination with radiotherapy (182 days) was statistically longer (p<0.01) than in those treated without radiotherapy (65 days, n=20). The tracheobronchial burn patient who received a combination of stent placement and post operative radiotherapy survived 540 days. No major complications were encountered during or after the procedure. Only 3 minor complications were observed: 1 stent migration, 1 partial rupture of the stent, and 1 stent deformation. G-Z stent treatment with the "stent-in-stent" technique is useful for palliation of malignant and benign tracheobronchial stenosis, and should contribute to improving the quality of life in patients with advanced cancer.

Correspondence to Xiangying Xu, Department of Radiology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan

ArticleTitle	Study on the Treatment of Tracheobronchial Stenosis using Expandable Metallic Stents
AuthorList	Xiangying Xu^{1, 3}, Hiroyuki Tajima¹, Michihito Ishioh¹, Jun Watari¹, Tsuguhiro Miyashita¹, Tatsuo Kumazaki¹ and Ryo Ogawa²
Affiliation	¹Department of Radiology and Center for Advanced Medical Technology, Nippon Medical School, ²Department of Anesthesiology, Nippon Medical School, ³Department of Radiotherapy, Third Hospital, Harbin Medical University, Heilongjiang Province, China
Language	EN
Volume	68
Issue	4
Year	2001
Page	318-327
Received	February 21, 2001
Accepted	March 28, 2001
Keywords	stent and prostheses, lung neoplasms, tracheal stenosis or obstruction, bronchial stenosis or obstruction, complications
Abstract	The purpose of this study is to clarify the clinical usefulness of Gianturco-Z stent (G-Z stent) for the management of malignant and benign tracheobronchial stenosis. Seventy-three stents were used in 30 patients. In 20 cases, we used the so-called "stent-in-stent" method. Twenty-four patients were grade 5, and 6 were grade 4 according to the Hugh-Jones classification of respiratory status. The technical success rates, clinical condition, respiratory status, blood gas analysis, survival rate, and complications were reviewed on the basis of the patients'medical records and radiographs. All stents were successfully placed in the appropriate position. After the procedure, respiratory status improved in 97% (29/30) of the patients. PaO₂ increased statistically (p<0.05), and PaCO₂ decreased one week after the treatment. Mean survival of 30 patients after stent placement was 123 days. Mean survival in 9 malignant patients treated in combination with radiotherapy (182 days) was statistically longer (p<0.01) than in those treated without radiotherapy (65 days, n=20). The tracheobronchial burn patient who received a combination of stent placement and post operative radiotherapy survived 540 days. No major complications were encountered during or after the procedure. Only 3 minor complications were observed: 1 stent migration, 1 partial rupture of the stent, and 1 stent deformation. G-Z stent treatment with the "stent-in-stent" technique is useful for palliation of malignant and benign tracheobronchial stenosis, and should contribute to improving the quality of life in patients with advanced cancer.
Correspondence to	Xiangying Xu, Department of Radiology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan