An experimental model for the prevention of postanastomotic tracheal stenosis Jerónimo Gonzálvez-Piñera, MD, Alberto Pérez-Martínez, MD, Alfredo Marco-Macián,

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Presentation transcript:

An experimental model for the prevention of postanastomotic tracheal stenosis Jerónimo Gonzálvez-Piñera, MD, Alberto Pérez-Martínez, MD, Alfredo Marco-Macián, MD, Dolores García-Olmo, * The Journal of Thoracic and Cardiovascular Surgery Volume 114, Issue 1, Pages 76-83 (July 1997) DOI: 10.1016/S0022-5223(97)70119-3 Copyright © 1997 Mosby, Inc. Terms and Conditions

Fig. 1 Diagram of group B (primary anastomosis) and group C (external stent of ePTFE). The Journal of Thoracic and Cardiovascular Surgery 1997 114, 76-83DOI: (10.1016/S0022-5223(97)70119-3) Copyright © 1997 Mosby, Inc. Terms and Conditions

Fig. 2 Surgical procedure. Left, Resection of six cervical tracheal rings. Center, Relation between the prosthesis (2 cm length, 8 mm internal diameter) and the segment resected. Right, Technique of insertion of the prosthesis. The Journal of Thoracic and Cardiovascular Surgery 1997 114, 76-83DOI: (10.1016/S0022-5223(97)70119-3) Copyright © 1997 Mosby, Inc. Terms and Conditions

Fig. 3 Left, Group C. Lengthwise section (a) and cross section (b). Note that the sutures are pulling centrifugally. Right, Detail of the knot on the spiral of the prosthesis. The Journal of Thoracic and Cardiovascular Surgery 1997 114, 76-83DOI: (10.1016/S0022-5223(97)70119-3) Copyright © 1997 Mosby, Inc. Terms and Conditions

Fig. 4 Distribution of the groups according to clinical parameters. The Journal of Thoracic and Cardiovascular Surgery 1997 114, 76-83DOI: (10.1016/S0022-5223(97)70119-3) Copyright © 1997 Mosby, Inc. Terms and Conditions

Fig. 5 Distribution of the degree of stenosis among the groups. The Journal of Thoracic and Cardiovascular Surgery 1997 114, 76-83DOI: (10.1016/S0022-5223(97)70119-3) Copyright © 1997 Mosby, Inc. Terms and Conditions

Fig. 5 Distribution of the degree of stenosis among the groups. The Journal of Thoracic and Cardiovascular Surgery 1997 114, 76-83DOI: (10.1016/S0022-5223(97)70119-3) Copyright © 1997 Mosby, Inc. Terms and Conditions

Fig. 6 Reduced diagram of the morphometric images obtained from the histologic preparations of the different groups. Note the marked reduction in tracheal lumen in group B and absence of stenosis in group C where the ePTFE prosthesis surrounds the tracheal wall. The Journal of Thoracic and Cardiovascular Surgery 1997 114, 76-83DOI: (10.1016/S0022-5223(97)70119-3) Copyright © 1997 Mosby, Inc. Terms and Conditions