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Lunardi M, Louvard Y, Lefèvre T, Stankovic G, Burzotta F, Kassab GS, Lassen JF, Darremont O, Garg S, Koo BK, Holm NR, Johnson TW, Pan M, Chatzizisis YS, Banning AP, Chieffo A, Dudek D, Hildick-Smith D, Garot J, Henry TD, Dangas G, Stone G, Krucoff MW, Cutlip D, Mehran R, Wijns W, Sharif F, Serruys PW, Onuma Y. Definitions and Standardized Endpoints for Treatment of Coronary Bifurcations. EUROINTERVENTION 2023; 19:e807-e831. [PMID: 35583108 PMCID: PMC10687650 DOI: 10.4244/eij-e-22-00018] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The Bifurcation Academic Research Consortium (Bif-ARC) project originated from the need to overcome the paucity of standardization and comparability between studies involving bifurcation coronary lesions. This document is the result of a collaborative effort between academic research organizations and the most renowned interventional cardiology societies focused on bifurcation lesions in Europe, the United States, and Asia. This consensus provides standardized definitions for bifurcation lesions; the criteria to judge the side branch relevance; the procedural, mechanistic, and clinical endpoints for every type of bifurcation study; and the follow-up methods. Considering the complexity of bifurcation lesions and their evaluation, detailed instructions and technical aspects for site and core laboratory analysis of bifurcation lesions are also reported. The recommendations included within this consensus will facilitate pooled analyses and the effective comparison of data in the future, improving the clinical relevance of trials in bifurcation lesions, and the quality of care in this subset of patients.
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Affiliation(s)
- Mattia Lunardi
- Department of Cardiology, Saolta Group, Galway University Hospital, Health Service Executive and National University of -Ireland Galway, Galway, Ireland
- Division of Cardiology, Department of Medicine, Verona University Hospital, Verona, Italy
| | - Yves Louvard
- Institut Cardiovasculaire Paris Sud, Massy, France
| | | | - Goran Stankovic
- Department of Cardiology, University Clinical Center of -Serbia and Faculty of Medicine, University of Belgrade, -Belgrade, -Serbia
| | - Francesco Burzotta
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS Università Cattolica del Sacro Cuore, Rome, Italy
| | - Ghassan S Kassab
- California Medical Innovation Institute, San Diego, California, USA
| | - Jens F Lassen
- Department of Cardiology B, Odense Universitets Hospital and University of Southern Denmark, Odense C, Denmark
| | | | - Scot Garg
- Department of Cardiology, Royal Blackburn Hospital, Blackburn, United Kingdom
| | - Bon-Kwon Koo
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Korea
| | - Niels R Holm
- Department of Cardiology, Aarhus University Hospital, Aarhus N, Denmark
| | - Thomas W Johnson
- Department of Cardiology, Bristol Heart Institute, University Hospitals Bristol NHSFT & University of Bristol, Bristol, United Kingdom
| | - Manuel Pan
- IMIBIC, Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Yiannis S Chatzizisis
- Cardiovascular Division, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Adrian P Banning
- Oxford Heart Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Alaide Chieffo
- Division of Cardiology, San Raffaele Hospital, Milan, Italy
| | - Dariusz Dudek
- Second Department of Cardiology Jagiellonian University Medical College, Krakow, Poland
| | | | - Jérome Garot
- Institut Cardiovasculaire Paris Sud, Massy, France
| | - Timothy D Henry
- Carl and Edyth Lindner Center for Research and Education at the Christ Hospital, Cincinnati, Ohio, USA
| | - George Dangas
- Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Gregg Stone
- Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Mitchell W Krucoff
- Division of Cardiology, Duke University Medical Center and Duke Clinical Research Institute, Durham, North Carolina, USA
| | - Donald Cutlip
- Cardiology Division, Beth Israel Deaconess Medical Center, Baim Institute for Clinical Research and Harvard Medical School, Boston, Massachusetts, USA
| | - Roxana Mehran
- Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - William Wijns
- Department of Cardiology, Saolta Group, Galway University Hospital, Health Service Executive and National University of -Ireland Galway, Galway, Ireland
- The Lambe Institute for Translational Medicine and CURAM, National University of Ireland Galway, Galway, Ireland
| | - Faisal Sharif
- Department of Cardiology, Saolta Group, Galway University Hospital, Health Service Executive and National University of -Ireland Galway, Galway, Ireland
| | - Patrick W Serruys
- Department of Cardiology, Saolta Group, Galway University Hospital, Health Service Executive and National University of -Ireland Galway, Galway, Ireland
- International Centre for Circulatory Health, NHLI, Imperial College, London, United Kingdom
| | - Yoshinobu Onuma
- Department of Cardiology, Saolta Group, Galway University Hospital, Health Service Executive and National University of -Ireland Galway, Galway, Ireland
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Radunović A, Vidaković R, Timčić S, Odanović N, Stefanović M, Lipovac M, Krupniković K, Mandić A, Kojić D, Tomović M, Ilić I. Multislice computerized tomography coronary angiography can be a comparable tool to intravascular ultrasound in evaluating "true" coronary artery bifurcations. Front Cardiovasc Med 2023; 10:1292517. [PMID: 38028491 PMCID: PMC10657987 DOI: 10.3389/fcvm.2023.1292517] [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: 09/11/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023] Open
Abstract
Aim Coronary bifurcation atherosclerosis depends on its angles, flow, and extensive branching. We investigate the ability of CT coronary angiography (CTCA) to determine atherosclerotic plaque characteristics of "true" bifurcation compared with intravascular ultrasound (IVUS) and the influence on side branch (SB) fate after percutaneous coronary intervention (PCI). Methods and results The study included 70 patients with 72 "true" bifurcations. Most of the bifurcations were in the left anterior descending-diagonal (Dg) territory [50 out of 72 (69.4%)]. Longitudinal plaque evaluation at the polygon of confluence [carina and 5 mm proximal and distal in the main branch (MB)] showed that carina side MB and SB plaque had occurred with the lowest incidence with fibro-lipid structure (115 ± 63 HU and 89 ± 73 HU, p < 0.001 for all). Bland-Altman analysis showed a discrepancy in measuring mainly the lumen area between CTCA and IVUS in proximal MB [lumen 5.10, 95% CI (95% confidence interval, 4.53-5.68) mm2, p < 0.001; vessel -1.42, 95% CI (-2.63 to -0.21) mm2, p = 0.023], carina MB [lumen 3.74, 95% CI (3.37-4.10) mm2, p < 0.001; vessel -0.48, 95% CI (-1.45 to 0.48) mm2, p = 0.322], and distal MB [lumen 4.72, 95% CI (4.27-5.18) mm2, p < 0.001; vessel 0.62, 95% CI (-0.53 to 1.77) mm2, p = 0.283]. A significant correlation existed between average plaque density on CTCA with a percentage of calcified plaque on IVUS tissue characterization (proximal r = 0.307/p = 0.024, carina 0.469/0.008, distal 0.339/0.024, minimal lumen diameter 0.318/0.020). Circumferential plaque in the proximal MB segment remained an independent predictor of SB compromise [OR 3.962 (95% CI 1.170-13.418)]. Conclusion Detection and characterization of atherosclerotic plaque by CTCA in non-left main "true" coronary bifurcations can provide useful information about bifurcation anatomy and plaque distribution that can predict outcomes after provisional stenting, thus guiding the interventional strategy to bifurcation PCI.
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Affiliation(s)
- Anja Radunović
- Department of Cardiology, Institute for Cardiovascular Diseases Dedinje, Belgrade, Serbia
| | - Radosav Vidaković
- Department of Cardiology, Clinical Hospital Center Zemun, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Stefan Timčić
- Department of Cardiology, Institute for Cardiovascular Diseases Dedinje, Belgrade, Serbia
| | - Natalija Odanović
- Department of Cardiology, Institute for Cardiovascular Diseases Dedinje, Belgrade, Serbia
| | - Milica Stefanović
- Department of Cardiology, Clinical Hospital Center Zemun, Belgrade, Serbia
| | - Mirko Lipovac
- Department of Cardiology, Institute for Cardiovascular Diseases Dedinje, Belgrade, Serbia
| | - Kosta Krupniković
- Department of Cardiology, Institute for Cardiovascular Diseases Dedinje, Belgrade, Serbia
| | - Aleksandar Mandić
- Department of Cardiology, Institute for Cardiovascular Diseases Dedinje, Belgrade, Serbia
| | - Dejan Kojić
- Department of Cardiology, Institute for Cardiovascular Diseases Dedinje, Belgrade, Serbia
| | - Milosav Tomović
- Department of Cardiology, Institute for Cardiovascular Diseases Dedinje, Belgrade, Serbia
| | - Ivan Ilić
- Department of Cardiology, Institute for Cardiovascular Diseases Dedinje, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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Zhang DQ, Xu YF, Dong YP, Yu SJ. Coronary computed tomography angiography study on the relationship between the Ramus Intermedius and Atherosclerosis in the bifurcation of the left main coronary artery. BMC Med Imaging 2023; 23:53. [PMID: 37041479 PMCID: PMC10091592 DOI: 10.1186/s12880-023-01009-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 03/28/2023] [Indexed: 04/13/2023] Open
Abstract
OBJECTIVE This study aimed to explore the relationship between the ramus intermedius (RI) and atherosclerosis in the bifurcation of the left coronary artery (LCA). METHODS Screening patients who underwent CCTA from January to September 2021, 100 patients with RI (RI group) and 100 patients without RI (no-RI group) were randomly enrolled, Evaluation of RI distribution characteristics and left main coronary artery(LM),Left anterior descending branch(LAD),left circumflex branch(LCX) proximal segment plaque distribution, measurement of LAD-LCX bifurcation angle(∠LAD-LCX),Comparison of the three distribution characteristics with the incidence of plaques in the left main trunk bifurcation area (LM, LAD, LCX) between groups and within the RI group. RESULTS The difference in the incidence of plaques in the proximal LCX and the LM between the RI group and the no-RI group were not statistically significant (P > 0.05). The incidence of plaques in the proximal LAD in the RI group was significantly higher than that in the non-RI group (77% versus 53%, P < 0.05). However, there was no statistically significant difference between the two groups after PSM. A univariate logistic regression analysis revealed that an RI was a risk factor for plaque formation in the proximal LAD (P < 0.001), and a multivariate logistic regression analysis revealed that an RI was not an independent risk factor for plaque formation in the proximal LAD (P > 0.05). When compared within the RI group, the difference in the incidence of plaques in the proximal segment of LAD, the proximal segment of LCX, and the LM among the different distribution groups of RI was not statistically significant, respectively (P > 0.05). CONCLUSION RI is not an independent risk factor for atherosclerosis in the left coronary artery bifurcation zone, but it may indirectly increase the risk of atherosclerosis in the proximal segment of the LAD.
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Affiliation(s)
- Dan-Qing Zhang
- Hebei Medical University, 050000, Shijiazhuang, China
- Department of Diagnostic CT, Cangzhou Central Hospital, No.16 of Xinhua West Road, Canal District, 061000, Cangzhou, China
| | - Yan-Feng Xu
- Department of Diagnostic CT, Cangzhou Central Hospital, No.16 of Xinhua West Road, Canal District, 061000, Cangzhou, China
| | - Ya-Peng Dong
- Department of Diagnostic CT, Cangzhou Central Hospital, No.16 of Xinhua West Road, Canal District, 061000, Cangzhou, China
| | - Shu-Jing Yu
- Hebei Medical University, 050000, Shijiazhuang, China.
- Department of Diagnostic CT, Cangzhou Central Hospital, No.16 of Xinhua West Road, Canal District, 061000, Cangzhou, China.
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Lunardi M, Louvard Y, Lefèvre T, Stankovic G, Burzotta F, Kassab GS, Lassen JF, Darremont O, Garg S, Koo BK, Holm NR, Johnson TW, Pan M, Chatzizisis YS, Banning A, Chieffo A, Dudek D, Hildick-Smith D, Garot J, Henry TD, Dangas G, Stone GW, Krucoff MW, Cutlip D, Mehran R, Wijns W, Sharif F, Serruys PW, Onuma Y. Definitions and Standardized Endpoints for Treatment of Coronary Bifurcations. J Am Coll Cardiol 2022; 80:63-88. [PMID: 35597684 DOI: 10.1016/j.jacc.2022.04.024] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/03/2022] [Accepted: 04/22/2022] [Indexed: 10/18/2022]
Abstract
The Bifurcation Academic Research Consortium (Bif-ARC) project originated from the need to overcome the paucity of standardization and comparability between studies involving bifurcation coronary lesions. This document is the result of a collaborative effort between academic research organizations and the most renowned interventional cardiology societies focused on bifurcation lesions in Europe, the United States, and Asia. This consensus provides standardized definitions for bifurcation lesions; the criteria to judge the side branch relevance; the procedural, mechanistic, and clinical endpoints for every type of bifurcation study; and the follow-up methods. Considering the complexity of bifurcation lesions and their evaluation, detailed instructions and technical aspects for site and core laboratory analysis of bifurcation lesions are also reported. The recommendations included within this consensus will facilitate pooled analyses and the effective comparison of data in the future, improving the clinical relevance of trials in bifurcation lesions, and the quality of care in this subset of patients.
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Affiliation(s)
- Mattia Lunardi
- Department of Cardiology, Saolta Group, Galway University Hospital, Health Service Executive and National University of Ireland Galway, Galway, Ireland; Division of Cardiology, Department of Medicine, Verona University Hospital, Verona, Italy
| | - Yves Louvard
- Institut Cardiovasculaire Paris Sud, Massy, France
| | | | - Goran Stankovic
- Department of Cardiology, University Clinical Center of Serbia and Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Francesco Burzotta
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS Università Cattolica del Sacro Cuore, Rome, Italy
| | - Ghassan S Kassab
- California Medical Innovation Institute, San Diego, California, USA
| | - Jens F Lassen
- Department of Cardiology B, Odense Universitets Hospital and University of Southern Denmark, Odense C, Denmark
| | | | - Scot Garg
- Department of Cardiology, Royal Blackburn Hospital, Blackburn, United Kingdom
| | - Bon-Kwon Koo
- Department of Internal Medicine and Cardiovascular Center, Seoul National University Hospital, Seoul, Korea
| | - Niels R Holm
- Department of Cardiology, Aarhus University Hospital, Aarhus N, Denmark
| | - Thomas W Johnson
- Department of Cardiology, Bristol Heart Institute, University Hospitals Bristol NHSFT & University of Bristol, Bristol, United Kingdom
| | - Manuel Pan
- IMIBIC, Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Yiannis S Chatzizisis
- Cardiovascular Division, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Adrian Banning
- Oxford Heart Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Alaide Chieffo
- Division of Cardiology, San Raffaele Hospital, Milan, Italy
| | - Dariusz Dudek
- Second Department of Cardiology Jagiellonian University Medical College, Krakow, Poland
| | | | - Jérome Garot
- Institut Cardiovasculaire Paris Sud, Massy, France
| | - Timothy D Henry
- Carl and Edyth Lindner Center for Research and Education at the Christ Hospital, Cincinnati, Ohio, USA
| | - George Dangas
- Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Gregg W Stone
- Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Mitchell W Krucoff
- Division of Cardiology, Duke University Medical Center and Duke Clinical Research Institute, Durham, North Carolina, USA
| | - Donald Cutlip
- Cardiology Division, Beth Israel Deaconess Medical Center, Baim Institute for Clinical Research and Harvard Medical School, Boston, Massachusetts, USA
| | - Roxana Mehran
- Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - William Wijns
- Department of Cardiology, Saolta Group, Galway University Hospital, Health Service Executive and National University of Ireland Galway, Galway, Ireland; The Lambe Institute for Translational Medicine and CURAM, National University of Ireland Galway, Galway, Ireland
| | - Faisal Sharif
- Department of Cardiology, Saolta Group, Galway University Hospital, Health Service Executive and National University of Ireland Galway, Galway, Ireland
| | - Patrick W Serruys
- Department of Cardiology, Saolta Group, Galway University Hospital, Health Service Executive and National University of Ireland Galway, Galway, Ireland; International Centre for Circulatory Health, NHLI, Imperial College, London, United Kingdom.
| | - Yoshinobu Onuma
- Department of Cardiology, Saolta Group, Galway University Hospital, Health Service Executive and National University of Ireland Galway, Galway, Ireland
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Visually Estimated RESOLVE Score Based on Coronary Computed Tomography to Predict Side Branch Occlusion in Percutaneous Bifurcation Intervention. J Thorac Imaging 2021; 36:189-196. [PMID: 33464008 DOI: 10.1097/rti.0000000000000570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE The quantitative RESOLVE (Risk prEdiction of Side branch OccLusion in coronary bifurcation interVEntion) score derived from coronary computed tomography angiography (coronary CTA) was developed as a noninvasive and accurate prediction tool for side branch (SB) occlusion in coronary bifurcation intervention. We aimed to determine the ability of a visually estimated CTA-derived RESOLVE score (V-RESOLVE score) to predict SB occlusion in coronary bifurcation intervention. MATERIALS AND METHODS The present study included 363 patients with 400 bifurcation lesions. CTA-derived V-RESOLVE score was derived and compared with the quantitative CTA-derived RESOLVE score. The scoring systems were divided into quartiles, and classified as the high-risk and non-high-risk groups. SB occlusion was defined as any decrease in thrombolysis in myocardial infarction flow grade after main vessel stenting. RESULTS In total, 28 SB occlusions (7%) occurred. The concordance between visual and quantitative CTA analysis showed poor to excellent agreement (weighted κ range: 0.099 to 0.867). The area under the receiver operating curve for the prediction of SB occlusion was significantly higher for the CTA-derived V-RESOLVE score than for quantitative CTA-derived RESOLVE score (0.792 vs. 0.709, P=0.049). The total net reclassification index was 42.7% (P=0.006), and CTA-derived V-RESOLVE score showed similar capability to discriminate between high-risk group (18.6% vs. 13.8%, P=0.384) and non-high-risk group (3.8% vs. 4.9%, P=0.510) as compared with quantitative CTA-derived RESOLVE score. CONCLUSIONS Visually estimated CTA-derived V-RESOLVE score is an accurate and easy-to-use prediction tool for the stratification of SB occlusion in coronary bifurcation intervention.
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Sadamatsu K, Okutsu M, Sumitsuji S, Kawasaki T, Nakamura S, Fukumoto Y, Tsujita K, Sonoda S, Kobayashi Y, Ikari Y. Practical utilization of cardiac computed tomography for the success in complex coronary intervention. Cardiovasc Interv Ther 2021; 36:178-189. [PMID: 33428155 DOI: 10.1007/s12928-020-00751-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 12/22/2020] [Indexed: 12/12/2022]
Abstract
Percutaneous coronary intervention (PCI) for complex lesions is still technically demanding and is associated with less favorable procedural parameters such as lower success rate, longer procedural time, higher contrast volume and unexpected complications. Because the conventional angiographic analysis is limited by the inability to visualize the plaque information and the occluded segment, cardiac computed tomography has evolved as an adjunct to invasive angiography to better characterize coronary lesions to improve success rates of PCI. Adding to routine image reconstructions by coronary computed tomography angiography, the thin-slab maximum intensity projection method, which is a handy reconstruction technique on an ordinary workstation, could provide easy-to-understand images to reveal the anatomical characteristics and the lumen and plaque information simultaneously, and then assist to build an in-depth strategy for PCI. Especially in the treatment of chronic total occlusion lesion, these informations have big advantages in the visualization of the morphologies of entry and exit, the occluded segment and the distribution of calcium compared to invasive coronary angiography. Despite of the additional radiation exposure, contrast use and cost for cardiac computed tomography, the precise analysis of lesion characteristics would consequently improve the procedural success and prevent the complication in complex PCI.
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Affiliation(s)
- Kenji Sadamatsu
- Department of Cardiovascular Medicine, Omuta City Hospital, 2-19-1 Takarazaka-machi, Omuta, Fukuoka, 836-8567, Japan.
| | - Masaaki Okutsu
- Department of Cardiovascular Medicine, New Tokyo Hospital, Matsudo, Japan
| | - Satoru Sumitsuji
- Department of Cardiology for International Education and Research, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Tomohiro Kawasaki
- Cardiovascular and Heart Rhythm Center, Shin-Koga Hospital, Kurume, Japan
| | - Sunao Nakamura
- Department of Cardiovascular Medicine, New Tokyo Hospital, Matsudo, Japan
| | - Yoshihiro Fukumoto
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Kenichi Tsujita
- Department of Cardiovascular Medicine, Kumamoto University Graduate School of Medical Science, Kumamoto, Japan
| | - Shinjo Sonoda
- Second Department of Internal Medicine, School of Medicine, University of Occupational and Environ- Mental Health, Kitakyushu, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yuji Ikari
- Department of Cardiology, Tokai University, Kanagawa, Japan
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Grodecki K, Opolski MP. Letter: Refining the prediction of side branch occlusion following percutaneous coronary intervention in bifurcation lesions. EUROINTERVENTION 2020; 16:e525-e526. [PMID: 32763866 DOI: 10.4244/eij-d-19-01107l] [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: 11/23/2022]
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Grodecki K, Opolski MP, Staruch AD, Michalowska AM, Kepka C, Wolny R, Pregowski J, Kruk M, Debski M, Debski A, Michalowska I, Witkowski A. Comparison of Computed Tomography Angiography Versus Invasive Angiography to Assess Medina Classification in Coronary Bifurcations. Am J Cardiol 2020; 125:1479-1485. [PMID: 32276762 DOI: 10.1016/j.amjcard.2020.02.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/11/2020] [Accepted: 02/14/2020] [Indexed: 12/14/2022]
Abstract
The Medina classification is used to determine the presence of significant stenosis (≥50%) within each of the 3 arterial segments of coronary bifurcation in invasive coronary angiography (ICA). The utility of coronary computed tomography angiography (coronary CTA) for assessment of Medina classification is unknown. We aimed to compare the agreement and reproducibility of Medina classification between ICA and coronary CTA, and evaluate its ability to predict side branch (SB) occlusion following percutaneous coronary intervention (PCI). In total 363 patients with 400 bifurcations were included, and 28 (7%) SB occlusions among 26 patients were noted. Total agreement between CTA and ICA for assessment of Medina class was poor (kappa = 0.189), and discordance between both modalities was noted in 253 (63.3%) lesions. Larger diameter ratio between main vessel and SB in CTA, and larger bifurcation angle in ICA were independently associated with discordant Medina assessment. Whereas the interobserver agreement on Medina classification in CTA was moderate (kappa = 0.557), only fair agreement (kappa = 0.346) was observed for ICA. Finally, Medina class with any proximal involvement of main vessel and SB (1.X.1) on CTA or ICA was the most predictive of SB occlusion following PCI with no significant differences between both modalities (area under the curve 0.686 vs 0.663, p = 0.693, respectively). In conclusion, Medina classification was significantly affected by the imaging modality, and coronary CTA improved reproducibility of Medina classification compared with ICA. Both CTA and ICA-derived Medina class with any involvement of the proximal main vessel and SB was predictive of SB occlusion following PCI.
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Noncalcified plaque burden quantified from coronary computed tomography angiography improves prediction of side branch occlusion after main vessel stenting in bifurcation lesions: results from the CT-PRECISION registry. Clin Res Cardiol 2020; 110:114-123. [PMID: 32385529 PMCID: PMC7806530 DOI: 10.1007/s00392-020-01658-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Accepted: 04/26/2020] [Indexed: 12/17/2022]
Abstract
OBJECTIVES To assess the incremental value of quantitative plaque features measured from computed tomography angiography (CTA) for predicting side branch (SB) occlusion in coronary bifurcation intervention. METHODS We included 340 patients with 377 bifurcation lesions in the post hoc analysis of the CT-PRECISION registry. Each bifurcation was divided into three segments: the proximal main vessel (MV), the distal MV, and the SB. Segments with evidence of coronary plaque were analyzed using semi-automated software allowing for quantitative analysis of coronary plaque morphology and stenosis. Coronary plaque measurements included calcified and noncalcified plaque volumes, and corresponding burdens (respective plaque volumes × 100%/vessel volume), remodeling index, and stenosis. RESULTS SB occlusion occurred in 28 of 377 bifurcation lesions (7.5%). The presence of visually identified plaque in the SB segment, but not in the proximal and distal MV segments, was the only qualitative parameter that predicted SB occlusion with an area under the curve (AUC) of 0.792. Among quantitative plaque parameters calculated for the SB segment, the addition of noncalcified plaque burden (AUC 0.840, p = 0.003) and low-density plaque burden (AUC 0.836, p = 0.012) yielded significant improvements in predicting SB occlusion. Using receiver operating characteristic curve analysis, optimal cut-offs for noncalcified plaque burden and low-density plaque burden were > 33.6% (86% sensitivity and 78% specificity) and > 0.9% (89% sensitivity and 73% specificity), respectively. CONCLUSIONS CTA-derived noncalcified plaque burden, when added to the visually identified SB plaque, significantly improves the prediction of SB occlusion in coronary bifurcation intervention. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03709836 registered on October 17, 2018.
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