Impact of the Balloon Inflation Time and Pattern on the Coronary Stent Expansion
Objectives. To assess the expansion pattern of coronary stents by using different balloon inflation times and pressures. Background. The selection of coronary stent size and its proper deployment is crucial in coronary artery interventions, having an impact on the success of the procedure and furthe...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Journal of Interventional Cardiology |
| Online Access: | http://dx.doi.org/10.1155/2019/6945372 |
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| author | Jarosław Skowroński Rafał Wolny Jan Jastrzębski Paweł Tyczyński Karol Szlazak Jerzy Pręgowski Gary S. Mintz Karolina Liżewska Wojciech Świeszkowski Zbigniew Chmielak Adam Witkowski |
| author_facet | Jarosław Skowroński Rafał Wolny Jan Jastrzębski Paweł Tyczyński Karol Szlazak Jerzy Pręgowski Gary S. Mintz Karolina Liżewska Wojciech Świeszkowski Zbigniew Chmielak Adam Witkowski |
| author_sort | Jarosław Skowroński |
| collection | DOAJ |
| description | Objectives. To assess the expansion pattern of coronary stents by using different balloon inflation times and pressures. Background. The selection of coronary stent size and its proper deployment is crucial in coronary artery interventions, having an impact on the success of the procedure and further therapy. Methods. Ten pairs of different stents were deployed under nominal pressure using sequential (5, 5, 10, and 10 seconds of repeated inflations, thus 30 seconds of summarized time) and continuous (30 seconds) deployment pattern. After each given time-point, intraluminal stent measurements were performed by optical coherence tomography (OCT) and intravascular ultrasound (IVUS). Results. Both in-stent diameters and cross-section areas (CSA) of paired stents measured by OCT at all sequential time-points were significantly smaller compared to given manufacturers charts’ values (90% to 94% for diameters and 81% to 88% for CSA, p<0.05). Significant increase of in-stent diameter and CSA was observed across the step-by-step deployment pattern. In-stent lumen measurements were significantly larger when sequential deployment pattern was applied compared to continuous deployment. Additional measurements were also done for overlapping segments of stents, showing smaller in-stent measurements of the latter compared to nonoverlapping segments. Validation of OCT and IVUS measurements using a phantom metallic tube showed perfect reproducibility with OCT and overestimation with IVUS (8% for diameters and 16% for CSA). Conclusions. Stent diameter after deployment is time-dependent and not only pressure-dependent. Different stent expansion behavior, depending on the applied deployment pattern (sequential and nonsequential), was observed. |
| format | Article |
| id | doaj-art-31fcfe5507e74f13a58ed3c6027964de |
| institution | Kabale University |
| issn | 0896-4327 1540-8183 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Interventional Cardiology |
| spelling | doaj-art-31fcfe5507e74f13a58ed3c6027964de2025-02-03T01:22:31ZengWileyJournal of Interventional Cardiology0896-43271540-81832019-01-01201910.1155/2019/69453726945372Impact of the Balloon Inflation Time and Pattern on the Coronary Stent ExpansionJarosław Skowroński0Rafał Wolny1Jan Jastrzębski2Paweł Tyczyński3Karol Szlazak4Jerzy Pręgowski5Gary S. Mintz6Karolina Liżewska7Wojciech Świeszkowski8Zbigniew Chmielak9Adam Witkowski10Department of Interventional Cardiology and Angiology, Institute of Cardiology, Warsaw, PolandDepartment of Interventional Cardiology and Angiology, Institute of Cardiology, Warsaw, PolandDepartment of Interventional Cardiology and Angiology, Institute of Cardiology, Warsaw, PolandDepartment of Interventional Cardiology and Angiology, Institute of Cardiology, Warsaw, PolandFaculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, PolandDepartment of Interventional Cardiology and Angiology, Institute of Cardiology, Warsaw, PolandCardiovascular Research Foundation, New York, USAFaculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, PolandFaculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, PolandDepartment of Interventional Cardiology and Angiology, Institute of Cardiology, Warsaw, PolandDepartment of Interventional Cardiology and Angiology, Institute of Cardiology, Warsaw, PolandObjectives. To assess the expansion pattern of coronary stents by using different balloon inflation times and pressures. Background. The selection of coronary stent size and its proper deployment is crucial in coronary artery interventions, having an impact on the success of the procedure and further therapy. Methods. Ten pairs of different stents were deployed under nominal pressure using sequential (5, 5, 10, and 10 seconds of repeated inflations, thus 30 seconds of summarized time) and continuous (30 seconds) deployment pattern. After each given time-point, intraluminal stent measurements were performed by optical coherence tomography (OCT) and intravascular ultrasound (IVUS). Results. Both in-stent diameters and cross-section areas (CSA) of paired stents measured by OCT at all sequential time-points were significantly smaller compared to given manufacturers charts’ values (90% to 94% for diameters and 81% to 88% for CSA, p<0.05). Significant increase of in-stent diameter and CSA was observed across the step-by-step deployment pattern. In-stent lumen measurements were significantly larger when sequential deployment pattern was applied compared to continuous deployment. Additional measurements were also done for overlapping segments of stents, showing smaller in-stent measurements of the latter compared to nonoverlapping segments. Validation of OCT and IVUS measurements using a phantom metallic tube showed perfect reproducibility with OCT and overestimation with IVUS (8% for diameters and 16% for CSA). Conclusions. Stent diameter after deployment is time-dependent and not only pressure-dependent. Different stent expansion behavior, depending on the applied deployment pattern (sequential and nonsequential), was observed.http://dx.doi.org/10.1155/2019/6945372 |
| spellingShingle | Jarosław Skowroński Rafał Wolny Jan Jastrzębski Paweł Tyczyński Karol Szlazak Jerzy Pręgowski Gary S. Mintz Karolina Liżewska Wojciech Świeszkowski Zbigniew Chmielak Adam Witkowski Impact of the Balloon Inflation Time and Pattern on the Coronary Stent Expansion Journal of Interventional Cardiology |
| title | Impact of the Balloon Inflation Time and Pattern on the Coronary Stent Expansion |
| title_full | Impact of the Balloon Inflation Time and Pattern on the Coronary Stent Expansion |
| title_fullStr | Impact of the Balloon Inflation Time and Pattern on the Coronary Stent Expansion |
| title_full_unstemmed | Impact of the Balloon Inflation Time and Pattern on the Coronary Stent Expansion |
| title_short | Impact of the Balloon Inflation Time and Pattern on the Coronary Stent Expansion |
| title_sort | impact of the balloon inflation time and pattern on the coronary stent expansion |
| url | http://dx.doi.org/10.1155/2019/6945372 |
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