In situ cooling with ice water for the easier removal of self-expanding nitinol stents
Background: It is yet to be determined what effects temperature has on the properties of nitinol in order to simplify the process of removing nitinol self-expanding metal stents (SEMS). Materials and methods: We describe the procedure for removal of SEMS in a total of 11 cases with 9 pati...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Georg Thieme Verlag KG
2015-02-01
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| Series: | Endoscopy International Open |
| Online Access: | http://www.thieme-connect.de/DOI/DOI?10.1055/s-0034-1390760 |
| _version_ | 1819085187182493696 |
|---|---|
| author | Daniel Merkel Eckhard Brinkmann Daniel Wiens Karl-Michael Derwahl |
| author_facet | Daniel Merkel Eckhard Brinkmann Daniel Wiens Karl-Michael Derwahl |
| author_sort | Daniel Merkel |
| collection | DOAJ |
| description | Background: It is yet to be determined what effects temperature has on the properties of nitinol in order to simplify the process of removing nitinol self-expanding metal stents (SEMS).
Materials and methods: We describe the procedure for removal of SEMS in a total of 11 cases with 9 patients. A study involving cooling of nitinol stents in situ with ice water just before their removal was attempted.
Results: All stents were removed successfully. In partially covered and in fully covered stents, the stent rigidity was noticeably reduced following cooling. Stent removal was performed by inversion, which was achieved by pulling on the stent from its distal end. No adverse events were observed during this trial.
Conclusion: The higher pliability of the stents after ice-water cooling facilitates stent removal. With this method, a mobilization of all stents by the invagination technique was achieved. The separation of the uncoated stent ends from the intestinal wall by the invagination technique, as well as the mucosal vasoconstriction resulting from the cooling, lead to an easier SEMS removal and may serve to prevent severe bleeding of the mucosal wall during this process. |
| first_indexed | 2024-12-21T21:00:22Z |
| format | Article |
| id | doaj.art-7fd6b91849d14f379b51ecd39f5161f5 |
| institution | Directory Open Access Journal |
| issn | 2364-3722 2196-9736 |
| language | English |
| last_indexed | 2024-12-21T21:00:22Z |
| publishDate | 2015-02-01 |
| publisher | Georg Thieme Verlag KG |
| record_format | Article |
| series | Endoscopy International Open |
| spelling | doaj.art-7fd6b91849d14f379b51ecd39f5161f52022-12-21T18:50:27ZengGeorg Thieme Verlag KGEndoscopy International Open2364-37222196-97362015-02-010301E51E5510.1055/s-0034-1390760In situ cooling with ice water for the easier removal of self-expanding nitinol stentsDaniel Merkel0Eckhard Brinkmann1Daniel Wiens2Karl-Michael Derwahl3Clinic for Internal Medicine, St. Hedwig-Krankenhaus, Berlin, GermanyDepartment of Gastroenterology, St. Josefs-Hospital, Cloppenburg, GermanyClinic for Internal Medicine, St. Hedwig-Krankenhaus, Berlin, GermanyClinic for Internal Medicine, St. Hedwig-Krankenhaus, Berlin, GermanyBackground: It is yet to be determined what effects temperature has on the properties of nitinol in order to simplify the process of removing nitinol self-expanding metal stents (SEMS). Materials and methods: We describe the procedure for removal of SEMS in a total of 11 cases with 9 patients. A study involving cooling of nitinol stents in situ with ice water just before their removal was attempted. Results: All stents were removed successfully. In partially covered and in fully covered stents, the stent rigidity was noticeably reduced following cooling. Stent removal was performed by inversion, which was achieved by pulling on the stent from its distal end. No adverse events were observed during this trial. Conclusion: The higher pliability of the stents after ice-water cooling facilitates stent removal. With this method, a mobilization of all stents by the invagination technique was achieved. The separation of the uncoated stent ends from the intestinal wall by the invagination technique, as well as the mucosal vasoconstriction resulting from the cooling, lead to an easier SEMS removal and may serve to prevent severe bleeding of the mucosal wall during this process.http://www.thieme-connect.de/DOI/DOI?10.1055/s-0034-1390760 |
| spellingShingle | Daniel Merkel Eckhard Brinkmann Daniel Wiens Karl-Michael Derwahl In situ cooling with ice water for the easier removal of self-expanding nitinol stents Endoscopy International Open |
| title | In situ cooling with ice water for the easier removal of self-expanding nitinol stents |
| title_full | In situ cooling with ice water for the easier removal of self-expanding nitinol stents |
| title_fullStr | In situ cooling with ice water for the easier removal of self-expanding nitinol stents |
| title_full_unstemmed | In situ cooling with ice water for the easier removal of self-expanding nitinol stents |
| title_short | In situ cooling with ice water for the easier removal of self-expanding nitinol stents |
| title_sort | in situ cooling with ice water for the easier removal of self expanding nitinol stents |
| url | http://www.thieme-connect.de/DOI/DOI?10.1055/s-0034-1390760 |
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