| External stent for repair of secondary tracheomalacia. | |
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MedLine Citation:
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PMID: 7425707 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Tracheomalacia was created in anesthetized piglets by submucosal resection of 3 to 5 tracheal cartilages. Measurements of airway pressure and flow showed that expiratory airway resistance is maximal at low lung volumes and is significantly increased by creation of the malacic segment. Cervical flexion increases expiratory airway resistance, whereas hyperextension of the neck reduces resistance toward normal. External stenting of the malacic segment reduces expiratory airway resistance, and the combination of external stenting and hyperextension restores airway resistance to normal except at low lung volume. Two patients with secondary tracheomalacia required tracheostomy and could not be decannulated after the indication for the tracheostomy was corrected. Both were successfully decannulated after external stenting of the malacic segment with rib grafts. Postoperative measurements of expiratory pulmonary resistance show a marked decrease from preoperative measurements. External stenting of symptomatic tracheomalacia reduces expiratory airway resistance by supporting and stretching the malacic segment and is preferable to prolonged internal stenting or tracheal resection. |
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Authors:
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M R Johnston; N Loeber; P Hillyer; L W Stephenson; L H Edmunds |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: The Annals of thoracic surgery Volume: 30 ISSN: 0003-4975 ISO Abbreviation: Ann. Thorac. Surg. Publication Date: 1980 Sep |
Date Detail:
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Created Date: 1980-12-16 Completed Date: 1980-12-16 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 15030100R Medline TA: Ann Thorac Surg Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 291-6 Citation Subset: AIM; IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Airway Resistance Animals Cartilage Diseases / physiopathology, therapy* Child, Preschool Disease Models, Animal* Female Functional Residual Capacity Humans Infant Male Prostheses and Implants* Swine Tracheal Diseases / physiopathology, therapy* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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