Efficacy of SMART Stent Placement for Salvage Angioplasty in Hemodialysis Patients with Recurrent Vascular Access Stenosis
Vascular access stenosis is a major complication in hemodialysis patients. We prospectively observed 50 patients in whom 50 nitinol shape-memory alloy-recoverable technology (SMART) stents were used as salvage therapy for recurrent peripheral venous stenosis. Twenty-five stents each were deployed in...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | International Journal of Nephrology |
| Online Access: | http://dx.doi.org/10.4061/2011/464735 |
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| author | Shingo Hatakeyama Terumasa Toikawa Akiko Okamoto Hayato Yamamoto Kengo Imanishi Teppei Okamoto Noriko Tokui Yuichiro Suzuki Naoki Sugiyama Atsushi Imai Yasuhiro Hashimoto Shigemasa Kudo Takahiro Yoneyama Takuya Koie Noritaka Kamimura Hisao Saitoh Tomihisa Funyu Chikara Ohyama |
| author_facet | Shingo Hatakeyama Terumasa Toikawa Akiko Okamoto Hayato Yamamoto Kengo Imanishi Teppei Okamoto Noriko Tokui Yuichiro Suzuki Naoki Sugiyama Atsushi Imai Yasuhiro Hashimoto Shigemasa Kudo Takahiro Yoneyama Takuya Koie Noritaka Kamimura Hisao Saitoh Tomihisa Funyu Chikara Ohyama |
| author_sort | Shingo Hatakeyama |
| collection | DOAJ |
| description | Vascular access stenosis is a major complication in hemodialysis patients. We prospectively observed 50 patients in whom 50 nitinol shape-memory alloy-recoverable technology (SMART) stents were used as salvage therapy for recurrent peripheral venous stenosis. Twenty-five stents each were deployed in native arteriovenous fistula (AVF) and synthetic arteriovenous polyurethane graft (AVG) cases. Vascular access patency rates were calculated by Kaplan-Meier analysis. The primary patency rates in AVF versus AVG at 3, 6, and 12 months were 80.3% versus 75.6%, 64.9% versus 28.3%, and 32.3% versus 18.9%, respectively. The secondary patency rates in AVF versus AVG at 3, 6, and 12 months were 88.5% versus 75.5%, 82.6% versus 61.8%, and 74.4% versus 61.8%, respectively. Although there were no statistically significant difference in patency between AVF and AVG, AVG showed poor tendency in primary and secondary patency. The usefulness of SMART stents was limited in a short period of time in hemodialysis patients with recurrent vascular access stenosis. |
| format | Article |
| id | doaj-art-ddfbdfc03f394754b18312b38ab4993c |
| institution | Kabale University |
| issn | 2090-214X 2090-2158 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Nephrology |
| spelling | doaj-art-ddfbdfc03f394754b18312b38ab4993c2025-02-03T06:04:59ZengWileyInternational Journal of Nephrology2090-214X2090-21582011-01-01201110.4061/2011/464735464735Efficacy of SMART Stent Placement for Salvage Angioplasty in Hemodialysis Patients with Recurrent Vascular Access StenosisShingo Hatakeyama0Terumasa Toikawa1Akiko Okamoto2Hayato Yamamoto3Kengo Imanishi4Teppei Okamoto5Noriko Tokui6Yuichiro Suzuki7Naoki Sugiyama8Atsushi Imai9Yasuhiro Hashimoto10Shigemasa Kudo11Takahiro Yoneyama12Takuya Koie13Noritaka Kamimura14Hisao Saitoh15Tomihisa Funyu16Chikara Ohyama17Department of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, JapanDepartment of Radiological Technology, Oyokyo Kidney Research Institute, Hirosaki 036-8243, JapanDepartment of Urology, Oyokyo Kidney Research Institute, Hirosaki 036-8243, JapanDepartment of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, JapanDepartment of Urology, Oyokyo Kidney Research Institute, Hirosaki 036-8243, JapanDepartment of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, JapanDepartment of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, JapanDepartment of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, JapanDepartment of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, JapanDepartment of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, JapanDepartment of Urology, Oyokyo Kidney Research Institute, Hirosaki 036-8243, JapanDepartment of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, JapanDepartment of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, JapanDepartment of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, JapanDepartment of Urology, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, JapanDepartment of Urology, Oyokyo Kidney Research Institute, Hirosaki 036-8243, JapanDepartment of Urology, Oyokyo Kidney Research Institute, Hirosaki 036-8243, JapanDepartment of Advanced Transplant and Regenerative Medicine, Hirosaki University Graduate School of Medicine, Hirosaki 036-8562, JapanVascular access stenosis is a major complication in hemodialysis patients. We prospectively observed 50 patients in whom 50 nitinol shape-memory alloy-recoverable technology (SMART) stents were used as salvage therapy for recurrent peripheral venous stenosis. Twenty-five stents each were deployed in native arteriovenous fistula (AVF) and synthetic arteriovenous polyurethane graft (AVG) cases. Vascular access patency rates were calculated by Kaplan-Meier analysis. The primary patency rates in AVF versus AVG at 3, 6, and 12 months were 80.3% versus 75.6%, 64.9% versus 28.3%, and 32.3% versus 18.9%, respectively. The secondary patency rates in AVF versus AVG at 3, 6, and 12 months were 88.5% versus 75.5%, 82.6% versus 61.8%, and 74.4% versus 61.8%, respectively. Although there were no statistically significant difference in patency between AVF and AVG, AVG showed poor tendency in primary and secondary patency. The usefulness of SMART stents was limited in a short period of time in hemodialysis patients with recurrent vascular access stenosis.http://dx.doi.org/10.4061/2011/464735 |
| spellingShingle | Shingo Hatakeyama Terumasa Toikawa Akiko Okamoto Hayato Yamamoto Kengo Imanishi Teppei Okamoto Noriko Tokui Yuichiro Suzuki Naoki Sugiyama Atsushi Imai Yasuhiro Hashimoto Shigemasa Kudo Takahiro Yoneyama Takuya Koie Noritaka Kamimura Hisao Saitoh Tomihisa Funyu Chikara Ohyama Efficacy of SMART Stent Placement for Salvage Angioplasty in Hemodialysis Patients with Recurrent Vascular Access Stenosis International Journal of Nephrology |
| title | Efficacy of SMART Stent Placement for Salvage Angioplasty in Hemodialysis Patients with Recurrent Vascular Access Stenosis |
| title_full | Efficacy of SMART Stent Placement for Salvage Angioplasty in Hemodialysis Patients with Recurrent Vascular Access Stenosis |
| title_fullStr | Efficacy of SMART Stent Placement for Salvage Angioplasty in Hemodialysis Patients with Recurrent Vascular Access Stenosis |
| title_full_unstemmed | Efficacy of SMART Stent Placement for Salvage Angioplasty in Hemodialysis Patients with Recurrent Vascular Access Stenosis |
| title_short | Efficacy of SMART Stent Placement for Salvage Angioplasty in Hemodialysis Patients with Recurrent Vascular Access Stenosis |
| title_sort | efficacy of smart stent placement for salvage angioplasty in hemodialysis patients with recurrent vascular access stenosis |
| url | http://dx.doi.org/10.4061/2011/464735 |
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