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Yang X, Yu Q, Yang J, Guo J, Jin Q. Intracoronary nicorandil induced hyperemia for physiological assessments in the coronary artery lesions. Front Cardiovasc Med 2022; 9:1023641. [DOI: 10.3389/fcvm.2022.1023641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/10/2022] [Indexed: 11/06/2022] Open
Abstract
ObjectiveMaximal hyperemia is a key element of invasive physiological examination. The aim of this study was to investigate the efficacy and safety of intracoronary (IC) nicorandil in comparison with adenosine 5′-triphosphate (ATP) intravenous (i.v.) injection for fractional flow reserve (FFR) measurement in coronary artery lesions.Materials and methodsIn this study, 46 patients who had their FFR measured were enrolled, including 51 lesions. Hyperemia was induced by bolus 2 mg nicorandil and ATP (40 mg ATP + 36 ml saline, weight × 10 ml/h) for FFR measurement. The safety and efficacy of IC nicorandil were evaluated.ResultsThe mean FFR values measured by nicorandil and ATP were 0.810 ± 0.013 and 0.799 ± 0.099, p < 0.001, respectively. There was a strong correlation between FFR measured by nicorandil and ATP (r = 0.983, R2 = 0.966, FFRnicorandil = 0.937 × FFRATP + 0.061). The rate of FFR ≤ 0.75 in the nicorandil and ATP groups was 31.37 vs. 35.29%, respectively (p = 0.841), the consistency rate was 96.08%; the FFR ≤ 0.8 rate was 41.18 and 43.14%, respectively (p = 0.674), and the consistency rate was 90.20%. In five lesions, the FFR value measured by nicorandil ranged between 0.79 and 0.82, indicating inconsistency according to FFR ≤ 0.8. The blood pressure changes caused by nicorandil and ATP were 12.96 ± 6.83 and 22.22 ± 11.44 mmHg (p < 0.001); the heart rate changes were 2.43 ± 1.31 and 6.52 ± 2.87 beats/min, respectively (p < 0.001); and the PR interval changes were 6.0 (1.0–11.0) and 9.0 (2.0–19.0) ms, respectively (p < 0.001). Visual analog scale (VAS) scores in the nicorandil group were all in the range 0–2, while in the ATP group were mostly in the range of 3–5.ConclusionIntracoronary bolus of nicorandil (2 mg) infusion induces stable hyperemia, and it could be considered as an alternative drug to ATP for FFR measurement with a lower side effect profile in most patients.
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Lee HS, Kim U, Yang S, Murasato Y, Louvard Y, Song YB, Kubo T, Johnson TW, Hong SJ, Omori H, Pan M, Doh JH, Kinoshita Y, Banning AP, Nam CW, Shite J, Lefèvre T, Gwon HC, Hikichi Y, Chatzizisis YS, Lassen JF, Stankovic G, Koo BK. Physiological Approach for Coronary Artery Bifurcation Disease: Position Statement by Korean, Japanese, and European Bifurcation Clubs. JACC Cardiovasc Interv 2022; 15:1297-1309. [PMID: 35717395 DOI: 10.1016/j.jcin.2022.05.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/28/2022] [Accepted: 05/03/2022] [Indexed: 10/18/2022]
Abstract
Coronary artery bifurcation lesions are frequently encountered in cardiac catheterization laboratories and are associated with more complex procedures and worse clinical outcomes than nonbifurcation lesions. Therefore, anatomical and physiological assessment of bifurcation lesions before, during, and after percutaneous coronary intervention is of paramount clinical importance. Physiological assessment can help interventionalists appreciate the hemodynamic significance of coronary artery disease and guide ischemia-directed revascularization. However, it is important to understand that the physiological approach for bifurcation disease is more important than simply using physiological indexes for its assessment. This joint consensus document by the Korean, Japanese, and European bifurcation clubs presents the concept of a physiological approach for coronary bifurcation lesions, as well as current knowledge, practical tips, pitfalls, and future directions of applying physiological indexes in bifurcation percutaneous coronary intervention. This document aims to guide interventionalists in performing appropriate physiology-based assessments and treatment decisions for coronary bifurcation lesions.
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Affiliation(s)
- Hak Seung Lee
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Korea
| | - Ung Kim
- Division of Cardiology, Department of Internal Medicine, Yeungnam University Medical Center, Yeungnam University College of Medicine, Daegu, Korea
| | - Seokhun Yang
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Korea
| | - Yoshinobu Murasato
- Department of Cardiology, National Hospital Organization Kyushu Medical Center, Fukuoka, Japan
| | - Yves Louvard
- Institut Cardiovasculaire Paris Sud, Hopital Privé Jacques Cartier, Massy, France
| | - Young Bin Song
- Department of Internal Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Takashi Kubo
- Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan
| | - Thomas W Johnson
- University of Bristol, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, United Kingdom
| | - Soon Jun Hong
- Division of Cardiology, Department of Cardiovascular Center, Korea University Anam Hospital, Seoul, Korea
| | - Hiroyuki Omori
- Department of Cardiovascular Medicine, Gifu Heart Center, Gifu, Japan; Department of Cardiology, Gifu Prefectural General Medical Center, Gifu, Japan
| | - Manuel Pan
- Cardiology Department of Reina Sofia Hospital, Maimonides Institute of Biomedical Research of Cordoba, University of Cordoba, Cordoba, Spain
| | - Joon-Hyung Doh
- Department of Medicine, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Yoshihisa Kinoshita
- Department of Cardiovascular Medicine, Toyohashi Heart Center, Toyohashi, Japan
| | - Adrian P Banning
- Division of Cardiovascular Medicine, British Heart Foundation Centre of Research Excellence, University of Oxford, Oxford, United Kingdom
| | - Chang-Wook Nam
- Department of Internal Medicine and Cardiovascular Research Institute, Keimyung University Dongsan Hospital, Daegu, Korea
| | - Junya Shite
- Division of Cardiology, Osaka Saiseikai Nakatsu Hospital, Osaka, Japan
| | - Thierry Lefèvre
- Institut Cardiovasculaire Paris Sud, Hopital Privé Jacques Cartier, Massy, France
| | - Hyeon-Cheol Gwon
- Department of Internal Medicine, Heart Vascular Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yutaka Hikichi
- Department of Cardiovascular Medicine, Saga Medical Center KOSEIKAN, Saga, Japan
| | - Yiannis S Chatzizisis
- Division of Cardiovascular Medicine, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Jens Flensted Lassen
- Department of Cardiology B, Odense Universitates Hospital and University of Southern Denmark, Odense C, Denmark
| | - Goran Stankovic
- Department of Cardiology, University Clinical Center of Serbia, and Faculty of Medicine, University of Belgrade, Belgrade, Serbia.
| | - Bon-Kwon Koo
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Korea.
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Vardhan M, Gounley J, Chen SJ, Chi EC, Kahn AM, Leopold JA, Randles A. Non-invasive characterization of complex coronary lesions. Sci Rep 2021; 11:8145. [PMID: 33854076 PMCID: PMC8047040 DOI: 10.1038/s41598-021-86360-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 03/15/2021] [Indexed: 02/02/2023] Open
Abstract
Conventional invasive diagnostic imaging techniques do not adequately resolve complex Type B and C coronary lesions, which present unique challenges, require personalized treatment and result in worsened patient outcomes. These lesions are often excluded from large-scale non-invasive clinical trials and there does not exist a validated approach to characterize hemodynamic quantities and guide percutaneous intervention for such lesions. This work identifies key biomarkers that differentiate complex Type B and C lesions from simple Type A lesions by introducing and validating a coronary angiography-based computational fluid dynamic (CFD-CA) framework for intracoronary assessment in complex lesions at ultrahigh resolution. Among 14 patients selected in this study, 7 patients with Type B and C lesions were included in the complex lesion group including ostial, bifurcation, serial lesions and lesion where flow was supplied by collateral bed. Simple lesion group included 7 patients with lesions that were discrete, [Formula: see text] long and readily accessible. Intracoronary assessment was performed using CFD-CA framework and validated by comparing to clinically measured pressure-based index, such as FFR. Local pressure, endothelial shear stress (ESS) and velocity profiles were derived for all patients. We validates the accuracy of our CFD-CA framework and report excellent agreement with invasive measurements ([Formula: see text]). Ultra-high resolution achieved by the model enable physiological assessment in complex lesions and quantify hemodynamic metrics in all vessels up to 1mm in diameter. Importantly, we demonstrate that in contrast to traditional pressure-based metrics, there is a significant difference in the intracoronary hemodynamic forces, such as ESS, in complex lesions compared to simple lesions at both resting and hyperemic physiological states [n = 14, [Formula: see text]]. Higher ESS was observed in the complex lesion group ([Formula: see text] Pa) than in simple lesion group ([Formula: see text] Pa). Complex coronary lesions have higher ESS compared to simple lesions, such differential hemodynamic evaluation can provide much the needed insight into the increase in adverse outcomes for such patients and has incremental prognostic value over traditional pressure-based indices, such as FFR.
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Affiliation(s)
- Madhurima Vardhan
- Department of Biomedical Engineering, Duke University, Durham, NC, 27705, USA
| | - John Gounley
- Computational Sciences and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37830, USA
| | - S James Chen
- Department of Medicine/Cardiology, University of Colorado AMC, Aurora, CO, 80045, USA
| | - Eric C Chi
- Department of Statistics, North Carolina State University, Raleigh, 27695, USA
| | - Andrew M Kahn
- Division of Cardiovascular Medicine, University of California San Diego, San Diego, 92103, USA
| | - Jane A Leopold
- Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Amanda Randles
- Department of Biomedical Engineering, Duke University, Durham, NC, 27705, USA.
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Abstract
Bifurcation lesions are a therapeutic challenge in the interventional treatment of coronary artery disease. Thus, consideration of anatomical aspects and selection of the most appropriate strategy for an individual bifurcation have an impact on the interventional outcome. Accordingly, assessment of the type of bifurcation stenosis, including the relevance of the side branches, vessel diameter and the angle between the two branches are critical for the optimal choice of interventional strategy. The fractional flow reserve (FFR) is a parameter that provides a measure of the severity of coronary stenosis and despite some limitations, FFR can be applied to bifurcation lesions. In addition, intravascular imaging tools, such as intravascular ultrasound (IVUS) and optical coherence tomography (OCT) can be used to determine anatomical configurations.
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Mallidi J, Lotfi A. Fractional Flow Reserve for the Evaluation of Tandem and Bifurcation Lesions, Left Main, and Acute Coronary Syndromes. Interv Cardiol Clin 2015; 4:471-480. [PMID: 28581933 DOI: 10.1016/j.iccl.2015.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Fractional flow reserve (FFR) is a well-established invasive tool to assess the physiologic significance of a coronary stenosis. Several randomized trials proved the safety of deferring revascularization based on FFR in subjects with stable coronary artery disease with single or multivessel disease. Subjects with tandem or bifurcations lesions, left main disease, and acute coronary syndromes were not included in these trials. Unique hemodynamic changes occur in each of these situations, making the measurement and interpretation of FFR challenging. This article reviews the technical aspects of assessing FFR and literature supporting FFR-guided revascularization in each of these situations.
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Affiliation(s)
- Jaya Mallidi
- Division of Cardiology, Baystate Medical Center, Tufts University, 759 Chestnut Street, Springfield, MA 01199, USA
| | - Amir Lotfi
- Division of Cardiology, Baystate Medical Center, Tufts University, 759 Chestnut Street, Springfield, MA 01199, USA.
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Qi X, Fan G, Zhu D, Ma W, Yang C. Comprehensive assessment of coronary fractional flow reserve. Arch Med Sci 2015; 11:483-93. [PMID: 26170840 PMCID: PMC4495145 DOI: 10.5114/aoms.2015.52351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 07/30/2013] [Accepted: 08/01/2013] [Indexed: 02/06/2023] Open
Abstract
Fractional flow reserve (FFR) is considered nowadays as the gold standard for invasive assessment of physiologic stenosis significance and an indispensable tool for decision-making in coronary revascularization. Robust studies have shown that FFR is more effective in accurately identifying which lesions should be stented, and revascularization guided by FFR improves the outcome of coronary artery disease in patients. Therefore, FFR has been upgraded to a class A recommendation in current guidelines when the ischemic potential for specific target lesions is controversial. This article reviews the laboratory practice, functional evaluation of FFR as a gold standard and its emerging clinical application. In addition, novel noninvasive technologies of FFR measurement are discussed in depth.
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Affiliation(s)
- Xiaolong Qi
- Division of Gastroenterology, Institute of Digestive Disease, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Guoxin Fan
- Division of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Deqiu Zhu
- Division of Pharmacy, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wanrong Ma
- Division of Gastroenterology, Institute of Digestive Disease, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Changqing Yang
- Division of Gastroenterology, Institute of Digestive Disease, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
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