Peer-reviewed veterinary case report
Nitinol stents used to treat tracheal collapse in 26 dogs
By Beranek, J et al.·Published in Schweizer Archiv fur Tierheilkunde·2014·Rutland House Referrals, United Kingdom·View original on PubMed →
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Original publication title: Use of nitinol self-expandable stents in 26 dogs with tracheal collapse.
- Species:
- dog
Plain-English summary
A group of 26 dogs with tracheal collapse, a condition that causes breathing difficulties, were treated using special self-expandable stents made of nitinol. These stents help support the trachea and improve airflow. In most cases, the dogs showed significant improvement in their breathing after the procedure, with 25 out of 26 dogs doing much better long-term. Some dogs needed additional stents due to complications, but overall, this treatment was effective and safe for managing tracheal collapse in dogs.
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Abstract
A study was designed to describe a novel approach to the treatment of tracheal collapse (TC) in dogs using self-expandable nitinol stents. Medical records were reviewed retrospectively for 26 client owned dogs in which nitinol stents were deployed. The entire length of trachea was supported independently of the extent of TC. Two overlapping stents were used instead of one in cases where one stent was not spanning the entire trachea adequately. The diameter of the cranial radiolucent portion of trachea, just behind the cricoid cartilage, was measured as a specific landmark to select the appropriate size of the stent. Two self-expandable nitinol stents were inserted in 9 of 26 dogs; the trachea in the rest of the cases was supported with only one stent. A follow up tracheoscopy was performed in 10 of 26 cases with recurrent clinical signs. Secondary tracheal stenosis in these cases was caused by stent fracture, granuloma or excessive stent shortening. Additional stents were placed successfully to expand the stenotic lumen. A support of the entire trachea may decrease risk of nitinol fracture at the end of the implant. Long term clinical improvement (25 of 26 dogs, 96 %) is comparable with the results of other studies.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/24463323/