Volume 118, Issue 4, Pages 959-965 (October 2000) Implantation of Ultraflex Nitinol Stents in Malignant Tracheobronchial Stenoses Miyazawa Teruomi , MD, FCCP, Yamakido Michio , MD, FCCP, Ikeda Sadao , MD, FCCP, Furukawa Kinya , MD, Takiguchi Yuichi , MD, Tada Hirohito , MD, Shirakusa Takayuki , MD CHEST Volume 118, Issue 4, Pages 959-965 (October 2000) DOI: 10.1378/chest.118.4.959 Copyright © 2000 The American College of Chest Physicians Terms and Conditions
Figure 1 Bronchoscopic images before and after implantationof the Ultraflex stent. Left: extrinsic compression of the trachea. Right: uncovered Ultraflex stent(diameter/length, 16/60 mm) in place. CHEST 2000 118, 959-965DOI: (10.1378/chest.118.4.959) Copyright © 2000 The American College of Chest Physicians Terms and Conditions
Figure 2 Three-dimensional CT images before and afterimplantation of Ultraflex stents. Left: extrinsiccompression of the trachea and left mainstem bronchus.Right: uncovered Ultraflex stents in place(diameter/length, 16/80 mm and 12/40 mm, respectively). Both luminawere patent. CHEST 2000 118, 959-965DOI: (10.1378/chest.118.4.959) Copyright © 2000 The American College of Chest Physicians Terms and Conditions
Figure 3 Degree of tracheobronchial obstruction before andafter implantation of the Ultraflex stent. * = p<0.001 before vsday 1, day 30, and day 60. CHEST 2000 118, 959-965DOI: (10.1378/chest.118.4.959) Copyright © 2000 The American College of Chest Physicians Terms and Conditions
Figure 4 Flow volume loop before and after implantation of the Ultraflex stent. Left: before implantation.Right: immediate improvement of flow limitation afterimplantation is shown. CHEST 2000 118, 959-965DOI: (10.1378/chest.118.4.959) Copyright © 2000 The American College of Chest Physicians Terms and Conditions
Figure 5 Survival curves after implantation of the Ultraflex stent. The median survival time of patients was 3 months. The1-year survival rate was 25.4%. CHEST 2000 118, 959-965DOI: (10.1378/chest.118.4.959) Copyright © 2000 The American College of Chest Physicians Terms and Conditions