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Ki YJ, Kang J, Zhang J, Hu X, Jiang J, Hahn JY, Nam CW, Doh JH, Lee BK, Kim W, Huang J, Jiang F, Zhou H, Chen P, Tang L, Jiang W, Chen X, He W, Ahn SG, Yoon MH, Kim U, Hwang D, Shin ES, Kim HS, Tahk SJ, Wang J, Koo BK. Prognostic Implications of Quantitative Flow Ratio and Plaque Characteristics in Intravascular Ultrasound-Guided Treatment Strategy. JACC Cardiovasc Interv 2024; 17:461-470. [PMID: 38340104 DOI: 10.1016/j.jcin.2023.11.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/25/2023] [Accepted: 11/20/2023] [Indexed: 02/12/2024]
Abstract
BACKGROUND Quantitative flow ratio (QFR) is a method for evaluating fractional flow reserve without the use of an invasive coronary pressure wire or pharmacological hyperemic agent. OBJECTIVES The aim of this study was to investigate the prognostic implications of QFR and plaque characteristics in patients who underwent intravascular ultrasound (IVUS)-guided treatment for intermediate lesions. METHODS Among the IVUS-guided strategy group in the FLAVOUR (Fractional Flow Reserve and Intravascular Ultrasound for Clinical Outcomes in Patients with Intermediate Stenosis) trial, vessels suitable for QFR analysis were included in this study. High-risk features were defined as low QFR (≤0.90), quantitative high-risk plaque characteristics (qn-HRPCs) (minimal lumen area ≤3.5 mm2, or plaque burden ≥70%), and qualitative high-risk plaque characteristics (ql-HRPCs) (attenuated plaque, positive remodeling, or plaque rupture) assessed using IVUS. The primary clinical endpoint was target vessel failure (TVF), defined as a composite of cardiac death, target vessel myocardial infarction, and target vessel revascularization. RESULTS A total of 415 (46.1%) vessels could be analyzable for QFR. The numbers of qn-HRPCs and ql-HRPCs increased with decreasing QFR. Among deferred vessels, those with 3 high-risk features exhibits a significantly higher risk of TVF compared with those with ≤2 high-risk features (12.0% vs 2.7%; HR: 4.54; 95% CI: 1.02-20.29). CONCLUSIONS Among the IVUS-guided deferred group, vessels with qn-HRPC and ql-HRPC with low QFR (≤0.90) exhibited a significantly higher risk for TVF compared with those with ≤2 features. Integrative assessment of angiography-derived fractional flow reserve and anatomical and morphological plaque characteristics is recommended to improve clinical outcomes in patients undergoing IVUS-guided deferred treatment.
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Affiliation(s)
- You-Jeong Ki
- Uijeongbu Eulji Medical Center, Gyeonggi-do, Republic of Korea
| | - Jeehoon Kang
- Cardiovascular Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jinlong Zhang
- Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xinyang Hu
- Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jun Jiang
- Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Joo-Yong Hahn
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Chang-Wook Nam
- Keimyung University Dongsan Medical Center, Daegu, Republic of Korea
| | - Joon-Hyung Doh
- Inje University Ilsan Paik Hospital, Goyang, Republic of Korea
| | - Bong-Ki Lee
- Kangwon National University Hospital, Chuncheon, Republic of Korea
| | - Weon Kim
- Kyung Hee University Hospital, Seoul, Republic of Korea
| | - Jinyu Huang
- Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Fan Jiang
- Hangzhou Normal University Affiliated Hospital, Hangzhou, China
| | - Hao Zhou
- 1st Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Peng Chen
- 2nd Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | | | - Wenbing Jiang
- Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou, China
| | | | - Wenming He
- Affiliated Hospital of Medical School of Ningbo University, Ningbo, China
| | - Sung-Gyun Ahn
- Wonju Severance Christian Hospital, Wonju, Republic of Korea
| | | | - Ung Kim
- Yeungnam University Medical Center, Daegu, Republic of Korea
| | - Doyeon Hwang
- Cardiovascular Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Eun-Seok Shin
- Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Hyo-Soo Kim
- Cardiovascular Center, Seoul National University Hospital, Seoul, Republic of Korea
| | | | - Jian'an Wang
- Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Bon-Kwon Koo
- Cardiovascular Center, Seoul National University Hospital, Seoul, Republic of Korea.
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Yang S, Kang J, Hwang D, Zhang J, Jiang J, Hu X, Hahn JY, Nam CW, Doh JH, Lee BK, Kim W, Huang J, Jiang F, Zhou H, Chen P, Tang L, Jiang W, Chen X, He W, Ahn SG, Yoon MH, Kim U, Lee JM, Ki YJ, Shin ES, Kim HS, Tahk SJ, Wang J, Koo BK. Physiology- or Imaging-Guided Strategies for Intermediate Coronary Stenosis. JAMA Netw Open 2024; 7:e2350036. [PMID: 38170524 PMCID: PMC10765263 DOI: 10.1001/jamanetworkopen.2023.50036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 11/15/2023] [Indexed: 01/05/2024] Open
Abstract
Importance Treatment strategies for intermediate coronary lesions guided by fractional flow reserve (FFR) and intravascular ultrasonography (IVUS) have shown comparable outcomes. Identifying low-risk deferred vessels to ensure the safe deferral of percutaneous coronary intervention (PCI) and high-risk revascularized vessels that necessitate thorough follow-up can help determine optimal treatment strategies. Objectives To investigate outcomes according to treatment types and FFR and IVUS parameters after FFR- or IVUS-guided treatment. Design, Setting, and Participants This cohort study included patients with intermediate coronary stenosis from the Fractional Flow Reserve and Intravascular Ultrasound-Guided Intervention Strategy for Clinical Outcomes in Patients With Intermediate Stenosis (FLAVOUR) trial, an investigator-initiated, prospective, open-label, multicenter randomized clinical trial that assigned patients into an IVUS-guided strategy (which recommended PCI for minimum lumen area [MLA] ≤3 mm2 or 3 mm2 to 4 mm2 with plaque burden [PB] ≥70%) or an FFR-guided strategy (which recommended PCI for FFR ≤0.80). Data were analyzed from November to December 2022. Exposures FFR or IVUS parameters within the deferred and revascularized vessels. Main Outcomes and Measures The primary outcome was target vessel failure (TVF), a composite of cardiac death, target vessel myocardial infarction, and revascularization at 2 years. Results A total of 1619 patients (mean [SD] age, 65.1 [9.6] years; 1137 [70.2%] male) with 1753 vessels were included in analysis. In 950 vessels for which revascularization was deferred, incidence of TVF was comparable between IVUS and FFR groups (3.8% vs 4.1%; P = .72). Vessels with FFR greater than 0.92 in the FFR group and MLA greater than 4.5 mm2 or PB of 58% or less in the IVUS group were identified as low-risk deferred vessels, with a decreased risk of TVF (hazard ratio [HR], 0.25 [95% CI, 0.09-0.71]; P = .009). In 803 revascularized vessels, the incidence of TVF was comparable between IVUS and FFR groups (3.6% vs 3.7%; P = .95), which was similar in the revascularized vessels undergoing PCI optimization (4.2% vs 2.5%; P = .31). Vessels with post-PCI FFR of 0.80 or less in the FFR group or minimum stent area of 6.0 mm2 or less or with PB at stent edge greater than 58% in the IVUS group had an increased risk for TVF (HR, 7.20 [95% CI, 3.20-16.21]; P < .001). Conclusions and Relevance In this cohort study of patients with intermediate coronary stenosis, FFR- and IVUS-guided strategies showed comparable outcomes in both deferred and revascularized vessels. Binary FFR and IVUS parameters could further define low-risk deferred vessels and high-risk revascularized vessels.
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Affiliation(s)
- Seokhun Yang
- Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Jeehoon Kang
- Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Doyeon Hwang
- Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - Jinlong Zhang
- The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
| | - Jun Jiang
- The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
| | - Xinyang Hu
- The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
| | | | - Chang-Wook Nam
- Keimyung University Dongsan Medical Center, Daegu, Republic of Korea
| | - Joon-Hyung Doh
- Inje University Ilsan Paik Hospital, Goyang, Republic of Korea
| | - Bong-Ki Lee
- Kangwon National University Hospital, Chuncheon, Gangwon-Do, Republic of Korea
| | - Weon Kim
- Kyung Hee University Hospital, Seoul, Republic of Korea
| | - Jinyu Huang
- Affiliated Hangzhou First People’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Fan Jiang
- Hangzhou Normal University Affiliated Hospital, Hangzhou, China
| | - Hao Zhou
- The 1st Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Peng Chen
- The 2nd Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | | | - Wenbing Jiang
- The Third Clinical Institute Affiliated To Wenzhou Medical University, Wenzhou, China
| | | | - Wenming He
- The Affiliated Hospital of Medical School of Ningbo University, Ningbo, China
| | - Sung Gyun Ahn
- Wonju Severance Christian Hospital, Wonju, Gangwon-Do, Republic of Korea
| | | | - Ung Kim
- Yeungnam University Medical Center, Daegu, Republic of Korea
| | | | - You-Jeong Ki
- Uijeongbu Eulji Medical Center, Uijeongbu, Gyeonggi-Do, Republic of Korea
| | - Eun-Seok Shin
- Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Hyo-Soo Kim
- Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | | | - Jian’an Wang
- The Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
| | - Bon-Kwon Koo
- Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
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Yang S, Koo BK. Physiology Versus Imaging-Guided Revascularization: Where Are We in 2023? JACC. ASIA 2023; 3:521-525. [PMID: 37396425 PMCID: PMC10308094 DOI: 10.1016/j.jacasi.2023.03.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/08/2023] [Accepted: 03/15/2023] [Indexed: 07/04/2023]
Affiliation(s)
| | - Bon-Kwon Koo
- Address for correspondence: Dr Bon-Kwon Koo, Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, 101 Daehang-ro, Chongno-gu, Seoul 110-744, Korea.
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Achenbach S. What makes a plaque rupture? A simple answer seems too much to ask for. EUROINTERVENTION 2023; 18:952-954. [PMID: 36688458 PMCID: PMC9853026 DOI: 10.4244/eij-e-22-00051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Stephan Achenbach
- Department of Cardiology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
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Legutko J, Bryniarski KL, Kaluza GL, Roleder T, Pociask E, Kedhi E, Wojakowski W, Jang IK, Kleczynski P. Intracoronary Imaging of Vulnerable Plaque-From Clinical Research to Everyday Practice. J Clin Med 2022; 11:jcm11226639. [PMID: 36431116 PMCID: PMC9699515 DOI: 10.3390/jcm11226639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 10/30/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022] Open
Abstract
The introduction into clinical practice of intravascular imaging, including intravascular ultrasound (IVUS), optical coherence tomography (OCT) and their derivatives, allowed for the in vivo assessment of coronary atherosclerosis in humans, including insights into plaque evolution and progression process. Intravascular ultrasound, the most commonly used intravascular modality in many countries, due to its low resolution cannot assess many features of vulnerable plaque such as lipid plaque or thin-cap fibroatheroma. Thus, novel methods were introduced to facilitate this problem including virtual histology intravascular ultrasound and later on near-infrared spectroscopy and OCT. Howbeit, none of the currently used modalities can assess all known characteristics of plaque vulnerability; hence, the idea of combining different intravascular imaging methods has emerged including NIRS-IVUS or OCT-IVUS imaging. All of those described methods may allow us to identify the most vulnerable plaques, which are prone to cause acute coronary syndrome, and thus they may allow us to introduce proper treatment before plaque destabilization.
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Affiliation(s)
- Jacek Legutko
- Department of Interventional Cardiology, Faculty of Medicine, Institute of Cardiology, Jagiellonian University Medical College, 31-202 Kraków, Poland
- Clinical Department of Interventional Cardiology, John Paul II Hospital, 31-202 Kraków, Poland
| | - Krzysztof L. Bryniarski
- Department of Interventional Cardiology, Faculty of Medicine, Institute of Cardiology, Jagiellonian University Medical College, 31-202 Kraków, Poland
- Clinical Department of Interventional Cardiology, John Paul II Hospital, 31-202 Kraków, Poland
| | - Grzegorz L. Kaluza
- Skirball Center for Innovation, Cardiovascular Research Foundation, Orangeburg, NY 10019, USA
| | - Tomasz Roleder
- Department of Cardiology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Elzbieta Pociask
- Department of Biocybernetics and Biomedical Engineering, AGH University of Science and Technology, 30-059 Kraków, Poland
| | - Elvin Kedhi
- Clinique Hopitaliere Erasme, Université Libre de Bruxelles, 1070 Brussels, Belgium
| | - Wojciech Wojakowski
- Division of Cardiology and Structural Heart Diseases, Medical University of Silesia, 40-635 Katowice, Poland
| | - Ik-Kyung Jang
- Cardiology Division, Massachusetts General Hospital, Harvard Medical School, GRB 800, Boston, MA 02115, USA
- Division of Cardiology, Kyung Hee University Hospital, Seoul 02447, Korea
| | - Pawel Kleczynski
- Department of Interventional Cardiology, Faculty of Medicine, Institute of Cardiology, Jagiellonian University Medical College, 31-202 Kraków, Poland
- Clinical Department of Interventional Cardiology, John Paul II Hospital, 31-202 Kraków, Poland
- Correspondence: ; Tel.: +48-12-614-35-01
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