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Wang Z, Yin Y, Li J, Qi W, Yu B, Xu Z, Zhu W, Yang F, Cao M, Zhang H. New Ultrasound-Controlled Paclitaxel Releasing Balloon vs. Asymmetric Drug-Eluting Stent in Primary ST-Segment Elevation Myocardial Infarction - A Prospective Randomized Trial. Circ J 2021; 86:642-650. [PMID: 34759131 DOI: 10.1253/circj.cj-21-0315] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Application of drug-coated balloons (DCBs) is popular for the treatment of percutaneous coronary intervention (PCI). A new DCB has been designed as ultrasound-controlled paclitaxel releasing. This study was conducted to determine whether a DCB-only strategy has a similar safety profile and equal angiographic and clinical outcomes to DES implantation in primary ST-elevation myocardial infarction (STEMI) patients, as well as determine the efficiency and safety of this new DCB.Methods and Results:Overall, 184 pretreated STEMI patients were randomized into DCB and DES groups with a 1:1 allocation. The main study end-point was late lumen loss (LLL) during the 9 months after PCI. Late lumen loss was reported to be 0.24±0.39 mm in the DCB group and 0.31±0.38 mm in the DES group (P=0.215). Diameter stenosis was 28.27±15.35% in the DCB group and 25.73±15.41% in the DES group (P=0.312). Major adverse cardiovascular events (MACEs) were reported in 3 patients (3.4%) in the DCB group and 4 patients (4.7%) in the DES group (P=0.718). TLR and TVR in the DCB group was 2.3%, 3.4% and 2.4%, 3.5% in the DES group (P=1.000), respectively. No cardiac death and stent thrombosis (ST) was found in the DCB group at 12 months clinical follow up. CONCLUSIONS The DCB-only strategy showed good angiographic and clinical outcomes in the 9- and 12-month follow-up periods, respectively. The VasoguardTM DCB is safe and feasible to treat STEMI patients.
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Affiliation(s)
- Zhiyong Wang
- Department of Emergency Cardiology, Heart Center, Inner Mongolia People's Hospital
| | - Yuxia Yin
- Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing
| | - Jianfei Li
- Department of Emergency Cardiology, Heart Center, Inner Mongolia People's Hospital
| | - Wantao Qi
- Department of Emergency Cardiology, Heart Center, Inner Mongolia People's Hospital
| | - Bo Yu
- Department of Emergency Cardiology, Heart Center, Inner Mongolia People's Hospital
| | - Zhiru Xu
- Department of Emergency Cardiology, Heart Center, Inner Mongolia People's Hospital
| | - Wangliang Zhu
- Department of Emergency Cardiology, Heart Center, Inner Mongolia People's Hospital
| | - Fa Yang
- Department of Emergency Cardiology, Heart Center, Inner Mongolia People's Hospital
| | - Mingkun Cao
- Department of Vascular & Intervention, Tenth Peoples' Hospital of Tongji University, Tongji University
| | - Haijun Zhang
- Department of Vascular & Intervention, Tenth Peoples' Hospital of Tongji University, Tongji University
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Shimozato R, Hidaka Y, Nakagawa D, Hayashi M, Fuseya Y, Iijima A. In-Stent Restenosis of Carotid and Vertebral Arteries Treated by Angioplasty Using a Cutting Balloon: A Case Report. JOURNAL OF NEUROENDOVASCULAR THERAPY 2021; 15:672-680. [PMID: 37502375 PMCID: PMC10370567 DOI: 10.5797/jnet.tn.2020-0119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 12/13/2020] [Indexed: 07/29/2023]
Abstract
Objective We treated a patient with internal carotid artery and vertebral artery ostium in-stent restenosis (ISR) treated by cutting balloon (CB) angioplasty. Case Presentation A 79-year-old man developed dizziness and right homonymous upper quadrantanopia. On arrival, magnetic resonance imaging (MRI) revealed acute-stage brain infarction. Angiography demonstrated left internal carotid artery and vertebral artery ostium stenosis (VAOS), which was thought to be related to the infarction. We performed stenting for both lesions, but 5 months later, restenosis occurred. The patient was successfully retreated by CB angioplasty for both lesions. Conclusion When treating carotid or vertebral artery ISR, plain balloon (PB) and stent-in-stent (SIS) procedures may induce insufficient dilatation, and hamper re-retreatment because of neointimal hyperplasia. Using CB should be considered as an option in such cases.
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Affiliation(s)
- Rin Shimozato
- Department of Neuroendovascular Therapy, JCHO Tokyo Shinjuku Medical Center, Tokyo, Japan
| | - Yukihiro Hidaka
- Department of Neuroendovascular Therapy, JCHO Tokyo Shinjuku Medical Center, Tokyo, Japan
| | - Daichi Nakagawa
- Department of Neurosurgery, JCHO Tokyo Shinjuku Medical Center, Tokyo, Japan
| | - Mototaka Hayashi
- Department of Neuroendovascular Therapy, Mito Brain Heart Center, Mito, Ibaraki, Japan
| | - Yoshie Fuseya
- Physiological Laboratory, JCHO Tokyo Shinjuku Medical Center, Tokyo, Japan
| | - Akira Iijima
- Department of Neuroendovascular Therapy, JCHO Tokyo Shinjuku Medical Center, Tokyo, Japan
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Kawashima H, Kyono H, Nakashima M, Okai I, Jujo K, Dohi T, Otsuki H, Tanaka K, Nagura F, Okazaki S, Hagiwara N, Daida H, Kozuma K. Prognostic Impact of Scoring Balloon Angioplasty After Rotational Atherectomy in Heavily Calcified Lesions Using Second-Generation Drug-Eluting Stents: A Multicenter Registry-Based Study. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2019; 21:322-329. [PMID: 31201059 DOI: 10.1016/j.carrev.2019.05.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 05/06/2019] [Accepted: 05/20/2019] [Indexed: 01/15/2023]
Abstract
BACKGROUND We aimed to assess the impact of scoring balloon angioplasty (SBA) after rotational atherectomy (RA) on long-term clinical outcomes in patients who underwent percutaneous coronary intervention (PCI) using second-generation drug-eluting stents (DES). The long-term outcomes associated with SBA after RA in severely calcified lesions is unknown. METHODS Using the J2T ROTA registry data, we evaluated the clinical events of patients who underwent PCI using RA for heavily calcified lesions from January 2004 to December 2015. A total of 307 patients who underwent PCI with second-generation DES were analyzed and divided into the SBA (n = 96) and conventional balloon angioplasty (CBA) groups (n = 211). Eighty-two and 189 patients comprised the "SBA after small burr (SBA-SB)" and "CBA after small burr (CBA-SB)" subgroups, respectively, for the subgroup analysis. Study endpoints were incidence of 3-year major adverse cardiac events (MACE), target vessel revascularization (TVR), and target lesion revascularization (TLR). RESULTS Kaplan-Meier analysis revealed that the incidence of 3-year cumulative MACE, TVR, and TLR were comparable between groups, and that the incidences of 3-year cumulative MACE, TVR, and TLR were significantly lower in the SBA-SB subgroup than in the CBA-SB subgroup (log-rank p = 0.008; log-rank p = 0.047; log-rank p = 0.045; respectively). Multivariate Cox regression model indicated that SBA after RA was an independent predictor of MACE (hazard ratio: 0.337; 95% confidence interval: 0.139 to 0.817; p = 0.016). CONCLUSIONS Additional SBA following RA was associated with lower MACE incidence in patients undergoing RA with a small-sized burr.
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Affiliation(s)
- Hideyuki Kawashima
- Department of Cardiology, Teikyo University School of Medicine, Tokyo, Japan.
| | - Hiroyuki Kyono
- Department of Cardiology, Teikyo University School of Medicine, Tokyo, Japan
| | - Makoto Nakashima
- Department of Cardiology, Teikyo University School of Medicine, Tokyo, Japan
| | - Iwao Okai
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Kentaro Jujo
- Department of Cardiology, Tokyo Woman's Medical University, Tokyo, Japan
| | - Tomotaka Dohi
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Hisao Otsuki
- Department of Cardiology, Tokyo Woman's Medical University, Tokyo, Japan
| | - Kazuki Tanaka
- Department of Cardiology, Tokyo Woman's Medical University, Tokyo, Japan
| | - Fukuko Nagura
- Department of Cardiology, Teikyo University School of Medicine, Tokyo, Japan
| | - Shinya Okazaki
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Nobuhisa Hagiwara
- Department of Cardiology, Tokyo Woman's Medical University, Tokyo, Japan
| | - Hiroyuki Daida
- Department of Cardiovascular Medicine, Juntendo University School of Medicine, Tokyo, Japan
| | - Ken Kozuma
- Department of Cardiology, Teikyo University School of Medicine, Tokyo, Japan
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Kufner S, Joner M, Schneider S, Tölg R, Zrenner B, Repp J, Starkmann A, Xhepa E, Ibrahim T, Cassese S, Fusaro M, Ott I, Hengstenberg C, Schunkert H, Abdel-Wahab M, Laugwitz KL, Kastrati A, Byrne RA. Neointimal Modification With Scoring Balloon and Efficacy of Drug-Coated Balloon Therapy in Patients With Restenosis in Drug-Eluting Coronary Stents: A Randomized Controlled Trial. JACC Cardiovasc Interv 2018; 10:1332-1340. [PMID: 28683939 DOI: 10.1016/j.jcin.2017.04.024] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 04/07/2017] [Accepted: 04/08/2017] [Indexed: 10/19/2022]
Abstract
OBJECTIVES The aim of this study was to compare neointimal modification with scoring balloon pre-dilation before drug-coated balloon (DCB) versus DCB standard therapy in patients presenting with drug-eluting stent (DES) restenosis. BACKGROUND DCB angioplasty for the treatment of coronary drug-eluting stent restenosis has demonstrated encouraging results. The efficacy of DCB treatment relies on rapid initial drug transfer and tissue retention of the antiproliferative drug. Neointimal modification with scoring balloon pre-dilation may enhance the efficacy of DCB therapy. METHODS In this randomized, open-label, active-controlled trial, 252 patients with clinically significant DES restenosis were enrolled at 4 centers in Germany. Patients undergoing DCB angioplasty were randomly assigned to treatment with scoring balloon pre-dilation or standard therapy. The primary endpoint of the study was in-segment percentage diameter stenosis on 6- to 8-month follow-up angiography. The secondary endpoints included binary angiographic restenosis and late lumen loss on follow-up angiography, the combined incidence of death or myocardial infarction, target lesion revascularization, and target lesion thrombosis at 1 year. RESULTS Follow-up angiographic data at 6 to 8 months were available for 203 patients (80.6%). Scoring balloon pre-dilation compared with standard therapy showed significantly lower rates with respect to the primary endpoint (35.0 ± 16.8% vs. 40.4 ± 21.4%; p = 0.047) and binary angiographic restenosis (18.5% vs. 32.0%; p = 0.026). Late lumen loss was numerically lower after scoring balloon pre-dilation compared with standard therapy (0.31 ± 59 mm vs. 0.41 ± 0.74 mm; p = 0.27). There was no difference between the groups in the incidence of death or myocardial infarction (4.0% vs. 3.4%; p = 0.73). Scoring balloon versus standard therapy showed comparable rates of target lesion revascularization (16.2% vs. 21.8%; p = 0.26). No target lesion thrombosis occurred out to 1 year. CONCLUSIONS In patients presenting with drug-eluting stent restenosis, neointimal modification with scoring balloon improves the antirestenotic efficacy of DCB therapy. (Intracoronary Stenting and Angiographic Results: Optimizing Treatment of Drug Eluting Stent In-Stent Restenosis 4 [ISAR-DESIRE 4]; NCT01632371).
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Affiliation(s)
- Sebastian Kufner
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
| | - Michael Joner
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
| | - Simon Schneider
- I. Medizinische Klinik, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
| | - Ralph Tölg
- Herzzentrum der Segeberger Kliniken, Bad Segeberg, Germany
| | - Bernhard Zrenner
- Krankenhaus Landshut-Achdorf, Medizinische Klinik I, Landshut, Germany
| | - Janika Repp
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
| | - Alissa Starkmann
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
| | - Erion Xhepa
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
| | - Tareq Ibrahim
- I. Medizinische Klinik, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany
| | - Salvatore Cassese
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
| | - Massimiliano Fusaro
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
| | - Ilka Ott
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
| | - Christian Hengstenberg
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany; DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Heribert Schunkert
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany; DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | | | - Karl-Ludwig Laugwitz
- I. Medizinische Klinik, Klinikum Rechts der Isar, Technische Universität München, Munich, Germany; DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Adnan Kastrati
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany; DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Robert A Byrne
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany; DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany.
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“Bare Metal” Stent Placement Complications: Interventional Treatment. ARS MEDICA TOMITANA 2016. [DOI: 10.1515/arsm-2016-0048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
The rapid implementation of stents in standard practice and expansion of the indication for their utilization also introduced a new problem: in-stent restenosis. Management of patients with restenosis after stent implantation is still considered an important clinical problem. Although balloon angioplasty is still one of the prefered strategies that provide satisfactory results and a low incidence of complication, repeat stenting with “drug eluting” stents or “drug balloon” angioplasty become a very atractive methods of treatment for selected lesions and patients.
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7
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Goel SS, Dilip Gajulapalli R, Athappan G, Philip F, Gupta S, Murat Tuzcu E, Ellis SG, Mishkel G, Kapadia SR. Management of drug eluting stent in-stent restenosis: A systematic review and meta-analysis. Catheter Cardiovasc Interv 2015; 87:1080-91. [PMID: 26613637 DOI: 10.1002/ccd.26151] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 07/14/2015] [Accepted: 07/21/2015] [Indexed: 12/28/2022]
Abstract
BACKGROUND The optimal management for coronary drug eluting stent in-stent restenosis (DES ISR) is unclear. We performed a meta-analysis of observational and randomized studies to compare the outcomes of management of DES ISR using DES, drug eluting balloon (DEB), or balloon angioplasty (BA). METHODS Eligible studies (25 single arm and 13 comparative, including 4 randomized studies with a total of 7,474 patients with DES ISR) were identified using MEDLINE search and proceedings of international meetings. Outcomes studied include major adverse cardiac events (MACE), target lesion revascularization (TLR), target vessel revascularization (TVR), myocardial infarction (MI), stent thrombosis (ST), and mortality. Follow-up ranged from 0.5 to 3.5 years (mean 1.4 years). RESULTS The rate of TLR was significantly lower in the DES (odds ratio [OR] 0.50, 95% confidence interval [CI] 0.36-0.69) and DEB (OR 0.31, 95% CI 0.18-0.55) groups compared to BA. Similarly, TVR rate was significantly lower in the DES (OR 0.55, 95% CI 0.39-0.77) and DEB (OR 0.32, 95% CI 0.18-0.58) groups compared to BA. All other outcomes were similar between the DES/BA and DEB/BA comparisons. TLR was significantly lower in the DES group compared to BA for vessels < or > 2.75 mm. CONCLUSION Treatment of coronary DES ISR with DES or DEB is associated with a reduction in the risk of TLR and TVR compared to BA alone. The relative risk reduction for TLR with DES is similar to DEB. DEBs have a potential role in the treatment of DES ISR by avoiding placement of another layer of stent. © 2015 Wiley Periodicals, Inc.
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Affiliation(s)
- Sachin S Goel
- Prairie Cardiovascular Consultants at St John's Hospital, Springfield, Illinois
| | | | | | - Femi Philip
- Division of Cardiovascular Medicine, University of California (Davis) Medical Center, Sacramento, California
| | - Supriya Gupta
- Department of Cardiovascular Medicine, Cleveland Clinic Foundation, Cleveland, Ohio
| | - E Murat Tuzcu
- Department of Cardiovascular Medicine, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Stephen G Ellis
- Department of Cardiovascular Medicine, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Gregory Mishkel
- Prairie Cardiovascular Consultants at St John's Hospital, Springfield, Illinois
| | - Samir R Kapadia
- Department of Cardiovascular Medicine, Cleveland Clinic Foundation, Cleveland, Ohio
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Minha S, Pichard AD, Waksman R. In-stent restenosis of drug-eluting stents. Future Cardiol 2014; 9:721-31. [PMID: 24020673 DOI: 10.2217/fca.13.45] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Drug-eluting stents (DES) have emerged as an improved alternative to bare-metal stents by demonstrating reduced rates of restenosis and target lesion revascularization. This emergence has led to the unrestricted use of DES for various indications and lesions, and subsequently revealed DES in-stent restenosis as a novel interventional therapeutic dilemma. Recent insights regarding the patho-physiological processes and therapeutic alternatives have added to the accumulated knowledge regarding the appropriate approach to this phenomenon. This review aims to detail the mechanism and clinical presentation of, and therapeutic strategies for, the treatment of DES in in-stent restenosis.
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Affiliation(s)
- Sa'ar Minha
- Interventional Cardiology, MedStar Washington Hospital Center, Washington, DC, USA
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Lansky AJ, Brar SS, Yaqub M, Sood P, Applegate RJ, Lazar D, Jankovic I, Hermiller JB, Koo K, Sudhir K, Stone GW. Impact of routine angiographic follow-up after percutaneous coronary intervention with drug-eluting stents in the SPIRIT III randomized trial at three years. Am J Cardiol 2012; 110:21-9. [PMID: 22464212 DOI: 10.1016/j.amjcard.2012.02.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 02/21/2012] [Accepted: 02/21/2012] [Indexed: 10/28/2022]
Abstract
Routine angiographic follow-up after bare-metal stent implantation has been associated with an increase in coronary revascularization. The impact of angiographic follow-up after drug-eluting stent placement remains poorly characterized. The prospective, randomized, single-blinded SPIRIT III trial assigned patients to the everolimus-eluting stent or the paclitaxel-eluting stent (PES). Major adverse cardiovascular events (cardiac death, myocardial infarction, and ischemia-driven target lesion revascularization [ID-TLR]) at 3 years were assessed by angiographic versus clinical-only follow-up at 8 months ± 28 days and a landmark survival analysis from 9 months to 3 years. Of 1,002 patients, 564 patients were assigned to angiographic follow-up at 8 months ± 28 days and 438 patients underwent clinical follow-up alone. Three-year major adverse cardiovascular event rates were 10.6% in the angiographic group and 12.0% in the clinical follow-up group (p = 0.64). Ischemia-driven revascularization increased twofold at 9 months, but no difference was noted in ID-TLR for either device. Non-ID-TLR was significantly higher in patients in the angiographic group (4.5% vs 1.0%, p = 0.002), a difference resulting from PES (9.1% vs 0.7%, p = 0.0007) rather than everolimus-eluting stent (2.2% vs 1.1%, p = 0.36) treatment. The landmark analysis showed no significant differences between the angiographic and clinical follow-up groups from 9 months to 3 years of major clinical outcomes. In conclusion, routine angiographic follow-up in SPIRIT III did not increase rates of ID-TLR compared to clinical follow-up alone. Despite higher nonischemia-driven revascularization rates with angiographic follow-up of patients with PESs, none of the safety end points were adversely affected.
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Randomized Trial of Optimal Treatment Strategies for In-Stent Restenosis After Drug-Eluting Stent Implantation. J Am Coll Cardiol 2012; 59:1093-100. [DOI: 10.1016/j.jacc.2011.11.047] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 10/18/2011] [Accepted: 11/08/2011] [Indexed: 11/20/2022]
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Ko YG, Kim JS, Kim BK, Choi D, Hong MK, Jeon DW, Yang JY, Ahn YK, Jeong MH, Yu CW, Yun KH, Lim DS, Jang Y. Efficacy of drug-eluting stents for treating in-stent restenosis of drug-eluting stents (from the Korean DES ISR multicenter registry study [KISS]). Am J Cardiol 2012; 109:607-13. [PMID: 22172241 DOI: 10.1016/j.amjcard.2011.10.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2011] [Revised: 10/21/2011] [Accepted: 10/21/2011] [Indexed: 11/15/2022]
Abstract
There is currently no established standard treatment for in-stent restenosis (ISR) after the implantation of a drug-eluting stent (DES). The aim of this study was to investigate the efficacy of DES versus balloon angioplasty (BA) for the treatment of DES ISR in a multicenter registry cohort. After matching propensity scores of 805 patients with DES ISR treated with either DES (n = 422) or BA (n = 383), 268 matched pairs were selected and analyzed for major adverse cardiac events, a composite of death, myocardial infarction, and target-vessel revascularization, as the primary end point. Baseline clinical and lesion characteristics of the matched pairs were similar. Survival free of major adverse cardiac events at 2 years was higher with DES compared to BA (88.9% vs 78.7%, p <0.001), mainly because of higher TVR-free survival (92.4% vs 81.0%, p <0.001). Among various baseline variables, BA (hazard ratio 2.546, 95% confidence interval 1.412 to 4.593, p = 0.002) was the most important independent risk factor for recurrent target vessel revascularization, followed by acute coronary syndromes as the clinical presentation of DES ISR, and previous implantation of a sirolimus-eluting stent. Survival free of death, myocardial infarction, or stent thrombosis did not differ between the 2 groups. Whereas there was no significant difference in survival free of target vessel revascularization between DES and BA for focal ISR lesions, DES was superior to BA in diffuse ISR lesions (94.3% vs 75.2% at 2 years, p <0.001). In conclusion, compared to BA, the implantation of DES was safe and more effective in the treatment of DES ISR.
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Affiliation(s)
- Young-Guk Ko
- Severance Cardiovascular Hospital, Yonsei University Health System, Seoul, Korea
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Abstract
The techniques and materials used during percutaneous coronary intervention have advanced considerably over the past 3 decades, yet restenosis remains one of the major drawbacks of this procedure. Many innovative technologies, including drug-eluting stents, with or without specific polymers, and fully biodegradable stents have been and continue to be developed in the search for a safe and effective antirestenosis therapy. Remarkable advances in stent design and nanoparticle delivery systems ('nanovehicles') have already fueled revolutionary changes in the prevention and treatment of in-stent restenosis. In this Review we provide an overview of the latest innovations for optimizing outcomes of coronary stenting, and up-to-date information about prevention and treatment of in-stent restenosis.
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