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Kasturi S, Polasa S, Sowdagar MA, Kumar P, Reddy T, Nichenamatla C, Singh S, Reddy VK. Ultrathin, biodegradable polymer-coated everolimus-eluting stents for patients undergoing percutaneous coronary intervention: Final three-year results of the PERFORM-EVER registry. Indian Heart J 2023; 75:469-472. [PMID: 37951304 PMCID: PMC10774589 DOI: 10.1016/j.ihj.2023.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 10/27/2023] [Accepted: 10/31/2023] [Indexed: 11/13/2023] Open
Abstract
The registry reports 3-year safety and clinical performance of the ultrathin strut (60 μm) biodegradable polymer-coated Tetrilimus, an everolimus-eluting stent (EES) (Sahajanand Medical Technologies Limited, India), in 'real-world' patients with coronary artery disease. A total of 815 Tetrilimus EES were implanted in 735 lesions in 594 patients. At 3-year follow-up, primary endpoint (target lesion failure, TLF) was reported in 8.6 % patients, including 2.6 % cardiac deaths, 3.5 % myocardial infarction and 2.6 % target lesion revascularization. At three-year, no cases of definite stent thrombosis were reported. The final three-year results of PERFORM-EVER registry endorse the continuous safety and effectiveness Tetrilimus EES.
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Affiliation(s)
- Sridhar Kasturi
- Sunshine Heart Institute, Hyderabad, Telangana, 500003, India.
| | - Srinivas Polasa
- Chalmeda Anandrao Institute of Medical Sciences, Karimnagar, Telangana, 505001, India.
| | | | - Praveen Kumar
- Gowri Gopal Hospital, Kurnool, Andhra Pradesh, 518002, India.
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de Winter RJ, Zaman A, Hara H, Gao C, Ono M, Garg S, Smits PC, Tonino PAL, Hofma SH, Moreno R, Choudhury A, Petrov I, Cequier A, Colombo A, Kaul U, Onuma Y, Serruys PW. Sirolimus-eluting stents with ultrathin struts versus everolimus-eluting stents for patients undergoing percutaneous coronary intervention: final three-year results of the TALENT trial. EUROINTERVENTION 2022; 18:492-502. [PMID: 35285804 PMCID: PMC10241281 DOI: 10.4244/eij-d-21-00766] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 01/17/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND In the TALENT study, the sirolimus-eluting ultrathin strut Supraflex stent was non-inferior to the XIENCE stent for a device-oriented composite endpoint (DoCE: defined as cardiac death, target vessel myocardial infarction [TV-MI], or clinically indicated target lesion revascularisation [CI-TLR]) at 12 months. AIMS This study investigated the 3-year outcomes of the TALENT trial and long-term impact of ultrathin drug-eluting stents (DES), compared to the XIENCE everolimus-eluting thin stent. METHODS The TALENT trial is a prospective, multicentre, randomised all-comers trial comparing the Supraflex sirolimus-eluting stent with the XIENCE everolimus-eluting stent, with planned follow-up for 3 years. RESULTS The TALENT trial enrolled 1,435 patients (Supraflex n=720, XIENCE n=715) with 3-year follow-up data available in 97.8% in the Supraflex group, and in 98.9% in the XIENCE group. At 3 years, DoCE occurred in 57 patients (8.1%) in the Supraflex group, and in 66 patients (9.4%) in the XIENCE group (p=0.406). There were no significant between-group differences in rates of cardiac death, TV-MI or CI-TLR. The rates of definite or probable stent thrombosis were low and similar between groups (1.1% vs 1.4%; p=0.640). In a meta-analysis of long-term follow-up (3-5 years), ultrathin strut DES tended to reduce DoCE (relative risk 0.89 [0.79-1.01]; p=0.068), compared to thicker strut DES. The risks for cardiac death and definite or probable stent thrombosis were similar between ultrathin strut DES and thicker strut DES. CONCLUSIONS At 3-year follow-up, the use of the Supraflex stent was at least as safe and efficacious as the XIENCE stent in an all-comers population. CLINICALTRIALS gov: NCT02870140.
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Affiliation(s)
| | - Azfar Zaman
- Newcastle Freeman Hospital, Newcastle University, and Newcastle upon Tyne Hospitals NHS Trust, Newcastle, United Kingdom
| | - Hironori Hara
- Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Department of Cardiology, National University of Ireland Galway, Galway, Ireland
| | - Chao Gao
- Department of Cardiology, National University of Ireland Galway, Galway, Ireland
- Department of Cardiology, Radboud University, Nijmegen, the Netherlands
| | - Masafumi Ono
- Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
- Department of Cardiology, National University of Ireland Galway, Galway, Ireland
| | - Scot Garg
- Department of Cardiology, Royal Blackburn Hospital, Blackburn, United Kingdom
| | | | - Pim A L Tonino
- Department of Cardiology, Catharina Hospital, Eindhoven, the Netherlands
| | | | - Raul Moreno
- Cardiology Department, La Paz University Hospital, Madrid, Spain
| | - Anirban Choudhury
- Department of Cardiology, University Hospital of Wales, Cardiff, United Kingdom
| | - Ivo Petrov
- Acibadem City Clinic Cardiovascular Center, Sofia, Bulgaria
| | - Angel Cequier
- Bellvitge University Hospital, University of Barcelona, IDIBELL, Barcelona, Spain
| | - Antonio Colombo
- Invasive Cardiology Unit, Humanitas Clinical and Research Center, IRCCS, Rozzano, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy
| | - Upendra Kaul
- Academics and Research, Batra Hospital and Medical Research Center, New Delhi, India
| | - Yoshinobu Onuma
- Department of Cardiology, National University of Ireland Galway, Galway, Ireland
| | - Patrick W Serruys
- Department of Cardiology, National University of Ireland Galway, Galway, Ireland
- NHLI, Imperial College London, London, United Kingdom
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Grundeken MJ, Beijk MAM. A Narrative Review of Ultrathin-strut Drug-eluting Stents: The Thinner the Better? Heart Int 2021; 15:84-93. [PMID: 36277831 PMCID: PMC9524587 DOI: 10.17925/hi.2021.15.2.84] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 10/15/2021] [Indexed: 08/05/2023] Open
Abstract
Second-generation drug-eluting stents (DES) are considered standard of care for revascularization of patients undergoing percutaneous coronary intervention. Besides the polymer and antiproliferative drug used, the metallic backbone of DES is an attractive target for further development. Ultrathin-strut DES (≤70 μm strut thickness) are more flexible, have an improved trackability and crossability compared to conventional second-generation DES. Importantly, ultrathin-strut DES reduce the risk of in-stent restenosis, thereby decreasing the risk of angiographic and clinical restenosis. In this narrative review, we will discuss the clinical outcomes of the commercially available ultrathin-strut DES.
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Affiliation(s)
- Maik J Grundeken
- Department of Cardiology, Amsterdam University Medical Centre – location AMC, Amsterdam, The Netherlands
| | - Marcel AM Beijk
- Department of Cardiology, Amsterdam University Medical Centre – location AMC, Amsterdam, The Netherlands
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Madhavan MV, Howard JP, Naqvi A, Ben-Yehuda O, Redfors B, Prasad M, Shahim B, Leon MB, Bangalore S, Stone GW, Ahmad Y. Long-term follow-up after ultrathin vs. conventional 2nd-generation drug-eluting stents: a systematic review and meta-analysis of randomized controlled trials. Eur Heart J 2021; 42:2643-2654. [PMID: 34002202 DOI: 10.1093/eurheartj/ehab280] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 03/30/2021] [Accepted: 05/12/2021] [Indexed: 02/06/2023] Open
Abstract
AIMS Contemporary 2nd-generation thin-strut drug-eluting stents (DES) are considered standard of care for revascularization of patients undergoing percutaneous coronary intervention. A previous meta-analysis of 10 randomized controlled trials (RCTs) with 11 658 patients demonstrated a 16% reduction in the 1-year risk of target lesion failure (TLF) with ultrathin-strut DES compared with conventional 2nd-generation thin-strut DES. Whether this benefit is sustained longer term is not known, and newer trial data may inform these relative outcomes. We therefore sought to perform an updated systematic review and meta-analysis of RCTs comparing clinical outcomes with ultrathin-strut DES (≤70 µm strut thickness) with conventional 2nd-generation thin-strut DES. METHODS AND RESULTS We performed a random-effects meta-analysis of all RCTs comparing ultrathin-strut DES to conventional 2nd-generation thin-strut DES. The pre-specified primary endpoint was long-term TLF, a composite of cardiac death, myocardial infarction (MI), or clinically driven target lesion revascularization (CD-TLR). Secondary endpoints included the components of TLF, stent thrombosis (ST), and all-cause death. There were 16 eligible trials in which 20 701 patients were randomized. The weighted mean follow-up duration was 2.5 years. Ultrathin-strut DES were associated with a 15% reduction in long-term TLF compared with conventional 2nd-generation thin-strut DES [relative risk (RR) 0.85, 95% confidence interval (CI) 0.76-0.96, P = 0.008] driven by a 25% reduction in CD-TLR (RR 0.75, 95% CI 0.62-0.92, P = 0.005). There were no significant differences between stent types in the risks of MI, ST, cardiac death, or all-cause mortality. CONCLUSIONS At a mean follow-up of 2.5 years, ultrathin-strut DES reduced the risk of TLF, driven by less CD-TLR compared with conventional 2nd-generation thin-strut DES, with similar risks of MI, ST, cardiac death, and all-cause mortality.
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Affiliation(s)
- Mahesh V Madhavan
- Columbia University Irving Medical Center, NewYork-Presbyterian Hospital, New York, NY, USA.,Cardiovascular Research Foundation, New York, NY, USA
| | - James P Howard
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Azim Naqvi
- Cardiovascular Research Foundation, New York, NY, USA
| | | | - Bjorn Redfors
- Cardiovascular Research Foundation, New York, NY, USA.,Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Megha Prasad
- Columbia University Irving Medical Center, NewYork-Presbyterian Hospital, New York, NY, USA
| | - Bahira Shahim
- Cardiovascular Research Foundation, New York, NY, USA
| | - Martin B Leon
- Columbia University Irving Medical Center, NewYork-Presbyterian Hospital, New York, NY, USA.,Cardiovascular Research Foundation, New York, NY, USA
| | | | - Gregg W Stone
- Cardiovascular Research Foundation, New York, NY, USA.,The Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Yousif Ahmad
- Smidt Heart Institute, Cedars Sinai Medical Center, San Vicente Boulevard, Los Angeles, CA 90048, USA
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Ploumen EH, Buiten RA, Zocca P, Doggen CJ, Aminian A, Schotborgh CE, Jessurun GA, Roguin A, Danse PW, Benit E, von Birgelen C. First Report of 3-Year Clinical Outcome After Treatment With Novel Resolute Onyx Stents in the Randomized BIONYX Trial. Circ J 2021; 85:1983-1990. [PMID: 34261828 DOI: 10.1253/circj.cj-21-0292] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND At 1 year, the international randomized BIONYX trial (ClinicalTrials.gov:NCT02508714) established non-inferiority regarding safety and efficacy of the novel Resolute Onyx zotarolimus-eluting stent (RO-ZES) vs. the Orsiro sirolimus-eluting stent (O-SES). Although the RO-ZES is used in daily practice, no clinical results have been published beyond 2 years.Methods and Results:We assessed 3-year clinical outcomes of 2,488 all-comers after percutaneous coronary intervention (PCI) with RO-ZES vs. O-SES. The main endpoint was target vessel failure (TVF), a composite of cardiac death, target vessel myocardial infarction (MI), or target vessel revascularization. Time-to-endpoints was assessed by Kaplan-Meier methods and between-group comparisons by log-rank tests. Follow-up was available in 2,433/2,488 (97.8%) patients. There was no significant between-stent difference in TVF (RO-ZES 112/1,243 [9.2%] vs. O-SES 109/1,245 [8.9%], hazard ratio [HR]: 1.03, 95% confidence interval [CI] 0.79-1.34; Plog-rank=0.85) and its individual components. The all-cause mortality was significantly lower after PCI with RO-ZES (3.7% vs.5.4%, HR: 0.67, 95% CI 0.46-0.97; Plog-rank=0.034), but cardiac mortality did not differ significantly (1.1% vs.1.9%, HR: 0.56, 95% CI 0.28-1.11; Plog-rank=0.09). Definite-or-probable stent thrombosis rates were low for both groups (0.6% vs.1.2%, HR: 0.46, 95% CI 0.19-1.14; Plog-rank=0.09). CONCLUSIONS This first 3-year randomized assessment of the RO-ZES showed a favorable rate of TVF that matched the outcomes of patients treated with O-SES. We observed a lower rate of all-cause death in the RO-ZES group, but long-term clinical follow-up is of interest.
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Affiliation(s)
- Eline H Ploumen
- Department of Cardiology, Thoraxcentrum Twente, Medisch Spectrum Twente.,Department of Health Technology and Services Research, Faculty of Behavioural, Management and Social Sciences, Technical Medical Centre, University of Twente
| | - Rosaly A Buiten
- Department of Cardiology, Thoraxcentrum Twente, Medisch Spectrum Twente.,Department of Health Technology and Services Research, Faculty of Behavioural, Management and Social Sciences, Technical Medical Centre, University of Twente
| | - Paolo Zocca
- Department of Cardiology, Thoraxcentrum Twente, Medisch Spectrum Twente
| | - Carine Jm Doggen
- Department of Health Technology and Services Research, Faculty of Behavioural, Management and Social Sciences, Technical Medical Centre, University of Twente
| | - Adel Aminian
- Department of Cardiology, Centre Hospitalier Universitaire de Charleroi
| | | | | | - Ariel Roguin
- Department of Cardiology, Hillel Yaffe Medical Center.,B. Rappaport-Faculty of Medicine, Institute of Technology
| | | | | | - Clemens von Birgelen
- Department of Cardiology, Thoraxcentrum Twente, Medisch Spectrum Twente.,Department of Health Technology and Services Research, Faculty of Behavioural, Management and Social Sciences, Technical Medical Centre, University of Twente
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Hussain Y, Gaston S, Kluger J, Shah T, Yang Y, Tirziu D, Lansky A. Long term outcomes of ultrathin versus standard thickness second-generation drug eluting stents: Meta-analysis of randomized trials. Catheter Cardiovasc Interv 2021; 99:563-574. [PMID: 34236755 DOI: 10.1002/ccd.29866] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 06/27/2021] [Indexed: 11/05/2022]
Abstract
OBJECTIVE Identify the effect of ultrathin drug eluting stents on long term outcomes in coronary artery disease. BACKGROUND Although second-generation drug eluting stents (DES) are superior to first-generation DES, persistence of adverse outcomes has led to continued refinement in design. Ultrathin second-generation DES have been shown to improve outcomes at 1-year follow-up. Beyond 1-year their effect remains unknown. METHODS PubMed, Embase and Cochrane Database were searched for randomized controlled trials that compared ultrathin (defined as <70 um) to standard thickness second-generation DES. Studies were chosen according to the PROSPERO protocol (CRD42020185374). Data from randomized controlled trials were pooled using random-effects model (Mantel-Haenszel). The primary outcome was target lesion failure (TLF) at 2 years, a composite of cardiac death, target vessel myocardial infarction, and ischemia-driven target vessel revascularization. Secondary outcomes included TLF at 3 and 5 years, the components of TLF and definite or probable stent thrombosis. Differences in outcomes between groups were presented in Forest plots as risk ratios (RR) with corresponding 95% confidence intervals (CIs) for each trial. RESULTS We identified 18 publications from 10 trials with14,649 patients. At 2-years there was a significant 12% reduction in TLF (RR, 0.88; 95% CI 0.78-0.99; p < 0.05) associated with the use of ultrathin DES. At 3-years, there was a significant 19% reduction in TLF with ultrathin DES (RR, 0.79; 95% CI 0.64-0.98; p < 0.05). CONCLUSION In patients undergoing percutaneous coronary intervention, ultrathin DES improve long term clinical outcomes.
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Affiliation(s)
- Yasin Hussain
- Department of Cardiology New Haven, Yale School of Medicine, New Haven, Connecticut, USA
| | - Samantha Gaston
- Yale Cardiovascular Research Group, Yale School of Medicine, New Haven, Connecticut, USA
| | - Johnathan Kluger
- Yale Cardiovascular Research Group, Yale School of Medicine, New Haven, Connecticut, USA
| | - Tayyab Shah
- Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut, USA
| | - Yiping Yang
- Yale Cardiovascular Research Group, Yale School of Medicine, New Haven, Connecticut, USA
| | - Daniela Tirziu
- Yale Cardiovascular Research Group, Yale School of Medicine, New Haven, Connecticut, USA
| | - Alexandra Lansky
- Department of Cardiology New Haven, Yale School of Medicine, New Haven, Connecticut, USA.,Yale Cardiovascular Research Group, Yale School of Medicine, New Haven, Connecticut, USA
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Thin Strut CoCr Biodegradable Polymer Biolimus A9-Eluting Stents versus Thicker Strut Stainless Steel Biodegradable Polymer Biolimus A9-Eluting Stents: Two-Year Clinical Outcomes. J Interv Cardiol 2021; 2021:6654515. [PMID: 33880087 PMCID: PMC8032541 DOI: 10.1155/2021/6654515] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/04/2021] [Accepted: 03/15/2021] [Indexed: 11/17/2022] Open
Abstract
Background While thinner struts are associated with improved clinical outcomes in bare-metal stents (BMS), reducing strut thickness may affect drug delivery from drug-eluting stents (DES) and there are limited data comparing otherwise similar thin and thick strut DES. We assessed 2-year outcomes of patients treated with a thin strut (84–88um) cobalt-chromium, biodegradable polymer, Biolimus A9-eluting stent (CoCr-BP-BES) and compared these to patients treated with a stainless steel, biodegradable polymer, Biolimus A9-eluting stent (SS-BP-BES). Methods In total, 1257 patients were studied: 400 patients from 12 centres receiving ≥1 CoCr-BP-BES in the prospective Biomatrix Alpha registry underwent prespecified comparison with 857 patients who received ≥1 Biomatrix Flex SS-BP-BES in the LEADERS study (historical control). The primary outcome was major adverse cardiac events (MACE)—cardiac death, myocardial infarction (MI), or clinically driven target vessel revascularization (cd-TVR). Propensity analysis was used to adjust for differences in baseline variables and a landmark analysis at day-3 to account for differences in periprocedural MI definitions. Results MACE at 2 years occurred in 6.65% CoCr-BP-BES versus 13.23% SS-BP-BES groups (unadjusted HR 0.48 [0.31–0.73]; P=0.0005). Following propensity analysis, 2-year adjusted MACE rates were 7.4% versus 13.3% (HR 0.53 [0.35–0.79]; P=0.004). Definite or probable stent thrombosis, adjudicated using identical criteria in both studies, occurred less frequently with CoCr-BP-BES (1.12% vs. 3.22%; adjusted HR 0.32 [0.11–0.9]; P=0.034). In day-3 landmark analysis, the difference in 2-year MACE was no longer significant but there was a lower patient-orientated composite endpoint (11.7% vs. 18.4%; HR 0.6 [0.43–0.83]; P=0.006) and a trend to lower target vessel failure (5.8% vs. 9.1%; HR 0.63 [0.4–1.00]; P=0.078). Conclusion At 2-year follow-up, propensity-adjusted analysis showed the thin strut (84–88um) Biomatrix Alpha CoCr-BP-BES was associated with improved clinical outcomes compared with the thicker strut (114–120um) Biomatrix Flex SS-BP-BES.
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Ultrathin Biodegradable-Polymer Orsiro Drug-Eluting Stent Performance in Real Practice Challenging Settings. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2020; 30:12-17. [PMID: 33012686 DOI: 10.1016/j.carrev.2020.09.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/15/2020] [Accepted: 09/21/2020] [Indexed: 11/21/2022]
Abstract
BACKGROUND The Orsiro cobalt-chromium stent platform (Biotronik, Bülach, Switzerland) is one of the first devices in the era of ultrathin struts. However, data regarding the efficacy of Orsiro stent in patients with challenging anatomical conditions obtained from daily clinical practice are scant. METHODS We retrospectively reviewed the long-term outcomes, defined as target lesion revascularization (TLR), target vessel revascularization (TVR), stent thrombosis (ST) and cardiovascular (CV) mortality over a six years period, in 1161 consecutive patients (mean age 64.3 ± 11.2 years old, 681 males) treated with 2327 Orsiro stents in our institution who presented with challenging anatomic/angiographic features. RESULTS The mean number of implanted stents was 1.7 ± 2.1 whereas the mean stent diameter and length were 3.6 ± 1.1 and 32.7 ± 15.6 mm, respectively. Mean follow-up duration was 35.6 ± 17 months (range 1-77 months); 923 patients (79.5%) reached the 3-year follow-up. The global rates of TLR, TVR, ST and CV mortality were 0.1%, 1.37%, 0.002%, and 1.9%, respectively with scarce statistically significant differences in multivessel disease, severe calcification, and lesion length > 41 mm. Multivariate regression analysis revealed that age, stent dislodgement, early stent thrombosis (p = 0.001) and lesion length ≥ 41 mm (p = 0.001) were independent predictors of TVR. Similarly, the occurrence of TLR was independently predicted by age, severe calcification, use of IVUS and Rotablator (p = 0.002), early stent thrombosis, LM bifurcation and length ≥ 41 mm (p = 0.001). CONCLUSIONS The Orsiro stent confirmed a very high efficacy profile in all anatomical scenarios with very low rates of clinically driven TLR and TVR, CV mortality and ST at 3-years.
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Abstract
PURPOSE OF REVIEW The current article will review recently published clinical studies that evaluate very thin or ultrathin-strut drug-eluting stents (DES), focusing on major randomized clinical trials in broad patient populations. RECENT FINDINGS Multiple randomized trials recently assessed the clinical performance of novel very thin to ultrathin-strut DES. Most randomized trials established noninferiority of the novel device. To date, only one major randomized clinical trial (i.e., BIOFLOW V) showed superiority of an ultrathin-strut biodegradable polymer-coated sirolimus-eluting stent over a very thin-strut durable polymer-coated everolimus-eluting stent in a relatively broad patient population. There are signals that the same ultrathin-strut biodegradable polymer-coated sirolimus-eluting stent may improve clinical outcome in specific patient populations. For example, in the randomized BIOSTEMI trial, 1-year superiority of the ultrathin-strut DES was found in patients presenting with an acute ST-segment elevation myocardial infarction. Yet, substudies of large randomized trials that assessed patients with small-vessel treatment showed equivocal results. SUMMARY Although two randomized trials showed advantages for ultrathin-strut DES, other clinical trials provided no significant evidence that ultrathin-strut DES improve clinical outcome. The question whether ultrathin-strut DES may reduce the repeat revascularization risk following implantation in small vessels is a matter of further debate and future research.
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