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Sharfo A, Wandall-Holm MF, Linde JJ, Hæsum I, Laursen GP, Kofoed KF, Hove JD. Tortuosity of the left anterior descending artery is associated with hypertension and is not independently related to physical performance: A cardiac computed tomography study. Clin Physiol Funct Imaging 2024. [PMID: 39210716 DOI: 10.1111/cpf.12900] [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: 11/04/2023] [Revised: 06/27/2024] [Accepted: 08/19/2024] [Indexed: 09/04/2024]
Abstract
BACKGROUND Coronary tortuosity (CorT) is frequently observed in invasive angiography, though its aetiology and clinical significance remain ambiguous. Prior research has indicated possible links between CorT and factors such as hypertension, age, and calcium scores in the left anterior descending (LAD) artery. The aim of this study was to examine and optimize the usage of coronary computed tomography angiography (CCTA) with vessel tracking to explore these associations. METHODS Observational sub-study of the single centre randomised controlled CATCH-trial. From the original study 600 participants, who underwent CCTA, 250 were randomly selected. Clinical data and patient risk factors were sourced from medical records and structured interviews. Tortuosity of the LAD was quantified by calculating the ratio of the actual vessel-length to the straight-line distance. RESULTS The final study population comprised 194 patients (56 patients were excluded due to poor image quality or inability to perform adequate vessel tracking). After adjusting for confounding variables, tortuosity was significantly associated with hypertension (p < 0.001), female gender (p = 0.01), and increasing age (p = 0.045). No significant correlation was observed between CorT and calcium scores. Univariate analysis indicated that higher CorT levels were linked to lower metabolic equivalents of task (METs) in bicycle tests (p = 0.003); however, this relationship became nonsignificant (p = 0.97) upon adjustment for age, gender, and hypertension. CONCLUSIONS Our findings suggest that increased CorT is most prevalent in patients with hypertension, advancing age, and female gender. Although higher tortuosity levels did not significantly impact METs during physical activity, further research is warranted to explore the underlying mechanisms of this relationship.
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Affiliation(s)
- Alaa Sharfo
- Department of Cardiology, Copenhagen University Hospital-Amager and Hvidovre Hospital, Hvidovre, Denmark
| | | | - Jesper James Linde
- Department of Cardiology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Ida Hæsum
- Department of Cardiology, Copenhagen University Hospital-Amager and Hvidovre Hospital, Hvidovre, Denmark
| | - Graversen Peter Laursen
- Department of Cardiology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Klaus Fuglsang Kofoed
- Department of Cardiology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Jens Dahlgaard Hove
- Department of Cardiology, Copenhagen University Hospital-Amager and Hvidovre Hospital, Hvidovre, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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2
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Nannini G, Saitta S, Baggiano A, Maragna R, Mushtaq S, Pontone G, Redaelli A. A fully automated deep learning approach for coronary artery segmentation and comprehensive characterization. APL Bioeng 2024; 8:016103. [PMID: 38269204 PMCID: PMC10807932 DOI: 10.1063/5.0181281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 07/11/2024] [Accepted: 01/04/2024] [Indexed: 01/26/2024] Open
Abstract
Coronary computed tomography angiography (CCTA) allows detailed assessment of early markers associated with coronary artery disease (CAD), such as coronary artery calcium (CAC) and tortuosity (CorT). However, their analysis can be time-demanding and biased. We present a fully automated pipeline that performs (i) coronary artery segmentation and (ii) CAC and CorT objective analysis. Our method exploits supervised learning for the segmentation of the lumen, and then, CAC and CorT are automatically quantified. 281 manually annotated CCTA images were used to train a two-stage U-Net-based architecture. The first stage employed a 2.5D U-Net trained on axial, coronal, and sagittal slices for preliminary segmentation, while the second stage utilized a multichannel 3D U-Net for refinement. Then, a geometric post-processing was implemented: vessel centerlines were extracted, and tortuosity score was quantified as the count of branches with three or more bends with change in direction forming an angle >45°. CAC scoring relied on image attenuation. CAC was detected by setting a patient specific threshold, then a region growing algorithm was applied for refinement. The application of the complete pipeline required <5 min per patient. The model trained for coronary segmentation yielded a Dice score of 0.896 and a mean surface distance of 1.027 mm compared to the reference ground truth. Tracts that presented stenosis were correctly segmented. The vessel tortuosity significantly increased locally, moving from proximal, to distal regions (p < 0.001). Calcium volume score exhibited an opposite trend (p < 0.001), with larger plaques in the proximal regions. Volume score was lower in patients with a higher tortuosity score (p < 0.001). Our results suggest a linked negative correlation between tortuosity and calcific plaque formation. We implemented a fast and objective tool, suitable for population studies, that can help clinician in the quantification of CAC and various coronary morphological parameters, which is helpful for CAD risk assessment.
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Affiliation(s)
- Guido Nannini
- Department of Electronics Information and Bioengineering, Politecnico di Milano, Milan, Italy
| | - Simone Saitta
- Department of Electronics Information and Bioengineering, Politecnico di Milano, Milan, Italy
| | | | - Riccardo Maragna
- Department of Perioperative Cardiology and Cardiovascular Imaging D, Centro Cardiologico Monzino IRCCS, Italy
| | - Saima Mushtaq
- Department of Perioperative Cardiology and Cardiovascular Imaging D, Centro Cardiologico Monzino IRCCS, Italy
| | | | - Alberto Redaelli
- Department of Electronics Information and Bioengineering, Politecnico di Milano, Milan, Italy
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Zebic Mihic P, Arambasic J, Mlinarevic D, Saric S, Labor M, Bosnjak I, Mihaljevic I, Bilic Curcic I, Juric I. Coronary Tortuosity Index vs. Angle Measurement Method for the Quantification of the Tortuosity of Coronary Arteries in Non-Obstructive Coronary Disease. Diagnostics (Basel) 2023; 14:35. [PMID: 38201343 PMCID: PMC10795752 DOI: 10.3390/diagnostics14010035] [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: 10/31/2023] [Revised: 12/14/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
Coronary tortuosity has been recognized as a potential pathophysiological mechanism in the development of non-obstructive coronary artery disease (CAD). The aim of this study was to examine the role of two coronary tortuosity measurement methods in the detection of clinically significant coronary tortuosity. The study included 160 patients with angina symptoms and myocardial ischemia detected by cardiac stress tests in chronic settings and those diagnosed with acute coronary syndrome. After coronary angiography, tortuosity of coronary arteries was assessed by two methods, including measurement of tortuosity angles and calculating of tortuosity index. Significantly more tortuous coronary arteries were detected in the group with non-obstructive CAD (p < 0.01 for all three arteries), with significantly higher tortuosity index (TI) for all three coronary arteries in this group of patients, compared to patients with obstructive CAD. The highest TI for LCX was found in patients with lateral ischemia (p < 0.001) and for LAD in patients with anterior ischemia (p < 0.001). When measured by the angle method, the only association was found between LCX tortuosity and lateral ischemia (OR 4.9, p = 0.046). In conclusion, coronary tortuosity represents a pathophysiological mechanism for myocardial ischemia in non-obstructive CAD. The coronary tortuosity index could be a reliable and widely applicable tool for the quantification of coronary tortuosity.
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Affiliation(s)
- Petra Zebic Mihic
- Department of Cardiovascular Diseases, University Hospital Center Osijek, 31000 Osijek, Croatia; (P.Z.M.); (I.J.)
- Faculty of Medicine Osijek, J.J. Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Jerko Arambasic
- Department of Cardiovascular Diseases, University Hospital Center Osijek, 31000 Osijek, Croatia; (P.Z.M.); (I.J.)
- Faculty of Medicine Osijek, J.J. Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Drazen Mlinarevic
- Department of Cardiovascular Diseases, University Hospital Center Osijek, 31000 Osijek, Croatia; (P.Z.M.); (I.J.)
| | - Sandra Saric
- Department of Cardiovascular Diseases, University Hospital Center Osijek, 31000 Osijek, Croatia; (P.Z.M.); (I.J.)
- Faculty of Medicine Osijek, J.J. Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Marina Labor
- Cancer and Lung Health Care Unit, University Hospital Linköping, 58185 Linköping, Sweden
| | - Ivica Bosnjak
- Department of Cardiovascular Diseases, University Hospital Center Osijek, 31000 Osijek, Croatia; (P.Z.M.); (I.J.)
| | - Ivica Mihaljevic
- Faculty of Medicine Osijek, J.J. Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Nuclear Medicine, University Hospital Center Osijek, 31000 Osijek, Croatia
| | - Ines Bilic Curcic
- Faculty of Medicine Osijek, J.J. Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Endocrinology, University Hospital Center Osijek, 31000 Osijek, Croatia
| | - Iva Juric
- Department of Cardiovascular Diseases, University Hospital Center Osijek, 31000 Osijek, Croatia; (P.Z.M.); (I.J.)
- Faculty of Medicine Osijek, J.J. Strossmayer University of Osijek, 31000 Osijek, Croatia
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Zebic Mihic P, Saric S, Bilic Curcic I, Mihaljevic I, Juric I. The Association of Severe Coronary Tortuosity and Non-Obstructive Coronary Artery Disease. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1619. [PMID: 37763738 PMCID: PMC10534717 DOI: 10.3390/medicina59091619] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/26/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023]
Abstract
Background and Objectives: There is an increasing interest in the coronary tortuosity as a novel pathophysiological mechanism of ischemia in coronary artery disease without significant obstruction, but there are a lack of studies to confirm this relationship in the clinical setting. The aim of our study was to evaluate the association of severe coronary tortuosity and the potential role of coronary blood supply dominance in the appearance of myocardial ischemia in patients with non-obstructive coronary artery disease (non-CAD), compared to patients with obstructive coronary artery disease (CAD). Materials and Methods: The study enrolled 131 participants (71 male and 60 female), recruited among patients referred to cardiologists due to angina symptoms with ischemic alterations established by cardiac stress tests, as well as those admitted to the hospital for acute coronary syndrome. Results: Mean age of recruited patients was 61.6 (±10.1) years. According to the coronary angiography, they were divided into two groups: non-obstructive and obstructive CAD (77 and 54, respectively). There were significantly more women (61% vs. 24%, p < 0.001) in the non-CAD group. Both tortuous coronary arteries (50.6% vs. 14.8%, p < 0.001) and left coronary dominance (37.7% vs. 16.7%, p = 0.006) were more frequent in the non-CAD group compared to the CAD group. Female sex (OR = 17.516, p = 0.001), tortuous coronary arteries (OR = 7.962, p = 0.006) and left dominance of blood supply were significant predictors for non-CAD. Conclusions: Non-obstructive CAD is common among patients, especially women, who are referred for coronary angiography. Severe coronary artery tortuosity is the strongest independent predictor of non-obstructive CAD, followed by female gender and left coronary dominance.
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Affiliation(s)
- Petra Zebic Mihic
- Department of Cardiovascular Diseases, University Hospital Center Osijek, 31000 Osijek, Croatia
- Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Sandra Saric
- Department of Cardiovascular Diseases, University Hospital Center Osijek, 31000 Osijek, Croatia
- Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
| | - Ines Bilic Curcic
- Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Endocrinology, University Hospital Center Osijek, 31000 Osijek, Croatia
| | - Ivan Mihaljevic
- Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
- Department of Nuclear Medicine, University Hospital Center Osijek, 31000 Osijek, Croatia
| | - Iva Juric
- Department of Cardiovascular Diseases, University Hospital Center Osijek, 31000 Osijek, Croatia
- Faculty of Medicine Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia
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Hou J, Yuan Y, Chen P, Lu K, Tang Z, Liu Q, Xu W, Zheng D, Xiong S, Pei H. Pathological Roles of Oxidative Stress in Cardiac Microvascular Injury. Curr Probl Cardiol 2022; 48:101399. [PMID: 36103941 DOI: 10.1016/j.cpcardiol.2022.101399] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 01/06/2023]
Abstract
Cardiac microvascular injury can be a fundamental pathological process that causes high incidence cardiovascular diseases such heart failure, diabetic cardiomyopathy, and hypertension. It is also an independent risk factor for cardiovascular disease. Oxidative stress is a significant pathological process in which the body interferes with the balance of the endogenous antioxidant defense system by producing reactive oxygen species, leading to property changes and dysfunction. It has been demonstrated that oxidative stress is one of the major causes of cardiac microvascular disease. Therefore, additional investigation into the relationship between oxidative stress and cardiac microvascular injury will direct clinical management in the future. In order to give suggestions and support for future in-depth studies, we give a basic overview of the cardiac microvasculature in relation to physiopathology in this review. We also summarize the role of oxidative stress of mitochondrial and non-mitochondrial origin in cardiac microvascular injury and related drug studies.
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Affiliation(s)
- Jun Hou
- Department of Cardiology, Chengdu Third People's Hospital/Affiliated Hospital of Southwest Jiao Tong University, Chengdu 610031, China
| | - Yuan Yuan
- Department of Pharmacy, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Peiwen Chen
- School of Medical and Life Sciences, Chengdu University of TCM, Chengdu 611130, China
| | - Keji Lu
- School of Medical and Life Sciences, Chengdu University of TCM, Chengdu 611130, China
| | - Zhaobing Tang
- Department of Rehabilitation Medicine, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Qing Liu
- Department of medical engineering, The 950th Hospital of PLA, Yecheng 844900, China
| | - Wu Xu
- Department of Urology, The Fifth Afliated Hospital of Southern Medical University, Guangzhou 510900, China
| | - Dezhi Zheng
- Department of Cardiovascular Surgery, the 960th Hospital of the PLA Joint Logistic Support Force, Jinan 250031, China
| | - Shiqiang Xiong
- Department of Cardiology, Chengdu Third People's Hospital/Affiliated Hospital of Southwest Jiao Tong University, Chengdu 610031, China
| | - Haifeng Pei
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu 610083, China.
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6
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Markiewicz T, Dziekiewicz M. Quantification of the ilio-femoral arteries tortuosity and data cluster modelling for preoperative examination. Biocybern Biomed Eng 2022. [DOI: 10.1016/j.bbe.2022.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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He Q, Ming D, Chen D, Zhang C, Xie H, Wei S. Correlation of osteoprotegerin, sRANKL, inflammatory factors and epicardial adipose tissue volume with coronary heart disease. Int J Clin Pract 2021; 75:e14207. [PMID: 33813793 DOI: 10.1111/ijcp.14207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/28/2021] [Accepted: 03/31/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND To observe the correlation of osteoprotegerin, soluble receptor activator of nuclear factor-κB ligand (sRANKL), inflammatory factors and epicardial adipose tissue volume (EATV) with the severity of coronary heart disease (CHD). METHODS We studied 390 patients who were admitted to the Department of Cardiology of our hospital because of chest pain and underwent coronary angiography (CAG) from August 2018 to December 2019. According to CAG, 209 patients had non-CHD and 181 patients had CHD. Demographic data, biochemical indicators including low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), total cholesterol (TC), lipoprotein a (Lp(a)), apolipoprotein B (apoB), apolipoprotein AI (apoAI), creatine kinase isoenzyme (CK-MB), osteoprotegerin, sRANKL, inflammatory factors (hs-CRP, FIB and IL-6), and EATV were collected. RESULTS The number of males, age, diabetes and hypertension in the CHD group was higher than those in the non-CHD group (P < .05). LDL-C, TC and apoB in the two groups were not significantly different (P > .05); HDL-C and apoAI in the CHD group were lower than those in the non-CHD group, and Lp(a) and CK-MB were higher than those in the control group (P < .05). Osteoprotegerin, IL-6, hs-CRP, EATV and FIB in the CHD group were higher than those in the non-CHD group, while sRANKL was lower than that in the control group (P < .05). Pearson correlation analysis showed that osteoprotegerin, sRANKL, inflammatory factors (hs-CRP, FIB and IL-6) and EATV were correlated with the severity of CHD (P < .05). Multivariate logistic regression analysis showed that CK-MB, osteoprotegerin, sRANKL, inflammatory factors (hs-CRP, FIB and IL-6) and EATV were risk factors for CHD, while HDL-C, Lp(a), apoAI were protective factors. CONCLUSION Osteoprotegerin, sRANKL, inflammatory factors and EATV were positively correlated with the severity of CHD, which had certain value for the diagnosis of CHD.
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Affiliation(s)
- Qiong He
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Dan Ming
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Dan Chen
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Chuanlin Zhang
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Hui Xie
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
| | - Shuang Wei
- Department of Cardiology, Renmin Hospital, Hubei University of Medicine, Shiyan, China
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8
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Blanco PJ, Bulant CA, Bezerra CG, Maso Talou GD, Pinton FA, Ziemer PGP, Feijóo RA, García-García HM, Lemos PA. Coronary arterial geometry: A comprehensive comparison of two imaging modalities. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING 2021; 37:e3442. [PMID: 33522112 DOI: 10.1002/cnm.3442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 11/14/2020] [Accepted: 01/23/2021] [Indexed: 06/12/2023]
Abstract
The characterization of vascular geometry is a fundamental step towards the correct interpretation of coronary artery disease. In this work, we report a comprehensive comparison of the geometry featured by coronary vessels as obtained from coronary computed tomography angiography (CCTA) and the combination of intravascular ultrasound (IVUS) with bi-plane angiography (AX) modalities. We analyzed 34 vessels from 28 patients with coronary disease, which were deferred to CCTA and IVUS procedures. We discuss agreement and discrepancies between several geometric indexes extracted from vascular geometries. Such an analysis allows us to understand to which extent the coronary vascular geometry can be reliable in the interpretation of geometric risk factors, and as a surrogate to characterize coronary artery disease.
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Affiliation(s)
- Pablo J Blanco
- National Laboratory for Scientific Computing, Petrópolis, Brazil
- National Institute of Science and Technology in Medicine Assisted by Scientific Computing, Petrópolis, Brazil
| | - Carlos A Bulant
- National Institute of Science and Technology in Medicine Assisted by Scientific Computing, Petrópolis, Brazil
- National Scientific and Technical Research Council, CONICET and National University of the Center, Tandil, Argentina
| | - Cristiano G Bezerra
- Department of Interventional Cardiology, Heart Institute (InCor) and the University of São Paulo Medical School, São Paulo, Brazil
| | - Gonzalo D Maso Talou
- National Institute of Science and Technology in Medicine Assisted by Scientific Computing, Petrópolis, Brazil
- Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
| | - Fabio A Pinton
- Department of Interventional Cardiology, Heart Institute (InCor) and the University of São Paulo Medical School, São Paulo, Brazil
| | - Paulo G P Ziemer
- National Laboratory for Scientific Computing, Petrópolis, Brazil
- National Institute of Science and Technology in Medicine Assisted by Scientific Computing, Petrópolis, Brazil
| | - Raúl A Feijóo
- National Laboratory for Scientific Computing, Petrópolis, Brazil
- National Institute of Science and Technology in Medicine Assisted by Scientific Computing, Petrópolis, Brazil
| | - Héctor M García-García
- MedStar Washington Hospital Center - Interventional Cardiology department, Washington, DC, USA
- Georgetown University School of Medicine, Washington, DC, USA
| | - Pedro A Lemos
- National Institute of Science and Technology in Medicine Assisted by Scientific Computing, Petrópolis, Brazil
- Department of Interventional Cardiology, Heart Institute (InCor) and the University of São Paulo Medical School, São Paulo, Brazil
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9
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Levent F, Senoz O, Emren SV, Emren ZY, Gediz RB. Is coronary artery tortuosity a predisposing factor for drug-eluting stent restenosis? Herz 2021; 47:73-78. [PMID: 33895890 DOI: 10.1007/s00059-021-05036-z] [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: 01/08/2021] [Revised: 03/15/2021] [Accepted: 03/25/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Coronary artery tortuosity (CAT) is a relatively common finding on coronary angiography and may be associated with impaired left ventricular relaxation and coronary ischemia However, the significance of CAT remains unknown. This study aimed to investigate whether the severity of tortuosity in the targeted coronary segment is a predictor of stent restenosis. METHODS The study included a total of 637 patients undergoing drug-eluting stent implantation due to stable or unstable angina and who had no native coronary artery stenosis on their last coronary angiogram. The patients were separated into two groups: 312 patients with in-stent restenosis and 325 patients without in-stent restenosis. All patients underwent computed tomography (CT) coronary angiography after invasive angiography and CAT was calculated using the computer software. RESULTS Patients with in-stent restenosis had higher CAT than those without restenosis (1.25 ± 0.11 vs. 1.11 + 0.07, p < 0.001). Multivariate Cox regression analysis showed that the tortuosity index (hazard ratio [HR]: 1.246 95% confidence interval [CI]: 1.127-1.376 p < 0.001) and the circumflex lesion (HR: 1.437 95% CI: 1.062-1.942 p = 0.019) were independently associated with in-stent restenosis. With the threshold value of severe tortuosity set at 1.15, the prediction of could be made with 81% sensitivity and 80% specificity. CONCLUSION The severity of tortuosity is proportional to coronary in-stent stenosis in patients with stable and unstable angina pectoris undergoing drug-eluting stent implantation for a severe single coronary artery.
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Affiliation(s)
- Fatih Levent
- Bursa Yüksek İhtisas Training and Research Hospital, Bursa, Turkey. .,, Cumhuriyet Mah, Ozan Sok, Bina no. 10, 5. Kat, D. 9, Nilüfer, 16140, Bursa, Turkey.
| | - Oktay Senoz
- Çiğli Regional Education Hospital, Bakırçay University, Izmir, Turkey
| | - Sadık Volkan Emren
- Ataturk Training and Research Hospital, Izmir Katip Celebi University, Izmir, Turkey
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10
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Numerical study on flow topology and hemodynamics in tortuous coronary artery with symmetrical and asymmetrical stenosis. Biocybern Biomed Eng 2021. [DOI: 10.1016/j.bbe.2020.12.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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11
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Li K, Cui M, Zhang K, Wang G, Zhai S. M1 macrophages-derived extracellular vesicles elevate microRNA-185-3p to aggravate the development of atherosclerosis in ApoE -/- mice by inhibiting small mothers against decapentaplegic 7. Int Immunopharmacol 2021; 90:107138. [PMID: 33302032 DOI: 10.1016/j.intimp.2020.107138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 10/26/2020] [Accepted: 10/26/2020] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Extracellular vesicles (EVs) are vital mediators of transferring microRNAs (miRNAs). We focused on effect of miR-185-3p that mediated by macrophages-derived EVs on atherosclerosis (AS) by targeting small mothers against decapentaplegic 7 (Smad7). METHODS EVs were extracted from M1 macrophages and identified. ApoE-/- mice were treated with EVs, EVs containing miR-185-3p inhibitor or mimic, then the pathological changes of mouse aorta were observed. The levels of blood lipid, cell adhesion molecules, oxidative stress factors, inflammatory factors, and proliferation and apoptosis of vascular endothelial cells were assessed. Expression of miR-185-3p and Smad7 was detected and the targeting relationship between miR-185-3p and Smad7 was validated. RESULTS MiR-185-3p was upregulated while Smad7 was downregulated in atherosclerotic mouse aorta. M1 macrophages-derived EVs elevated miR-185-3p to promote development of AS pathology and levels of blood lipid, endothelial cellular adhesion, oxidative stress factors and inflammatory factors, suppressed cell proliferation and promoted cell apoptosis of vascular endothelial cells in atherosclerotic mice through downregulating Smad7. Smad7 was a target gene of miR-185-3p and miR-185-3p could inhibit expression of Smad7. CONCLUSION M1 macrophages-derived EVs and upregulated miR-185-3p aggravated the development of AS in ApoE-/- mice by negatively regulating Smad7. This research may further the understanding of AS mechanism.
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Affiliation(s)
- Kun Li
- Department of Vascular and Endovascular Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou 450003, China
| | - Mingzhe Cui
- Department of Vascular and Endovascular Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou 450003, China
| | - Kewei Zhang
- Department of Vascular and Endovascular Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou 450003, China
| | - Guoquan Wang
- Department of Vascular and Endovascular Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou 450003, China
| | - Shuiting Zhai
- Department of Vascular and Endovascular Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou 450003, China.
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12
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Li Y, Zhang X, Dai Q, Ma G. Coronary flow reserve and microcirculatory resistance in patients with coronary tortuosity and without atherosclerosis. J Int Med Res 2020; 48:300060520955060. [PMID: 32954929 PMCID: PMC7509742 DOI: 10.1177/0300060520955060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Objective Coronary tortuosity may affect epicardial coronary arterial blood flow. This study aimed to investigate the effect of coronary tortuosity on coronary flow reserve and the coronary microcirculation in patients without apparent coronary atherosclerosis. Methods Prospective patients (n = 8, 3 men, mean age: 58 ± 6.0 years) with coronary tortuosity and without apparent coronary atherosclerosis were enrolled. Coronary tortuosity was defined by the finding of ≥three bends (defined as a ≥45° change in vessel direction) along the main trunk of the left anterior descending artery or left circumflex artery. Coronary flow reserve and the index of microcirculatory resistance were measured by the thermodilution technique. Results A total of eight coronary arteries with coronary tortuosity were analyzed. The mean fractional flow reserve was 0.98 ± 0.007. The mean coronary flow reserve was 1.5 ± 0.3, which is much lower than that in the normal coronary artery as reported in the literature. The mean index of microcirculatory resistance was 26.7 ± 2.3, which is much higher than that in the normal coronary artery. Conclusions Coronary tortuosity is associated with decreased coronary flow reserve and an increased index of microcirculatory resistance. Trial registration: This study is registered at the Chinese Clinical Trial Registry, NCT No: ChiCTR2000033671
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Affiliation(s)
- Yang Li
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Xiaoguo Zhang
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Qiming Dai
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Genshan Ma
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China
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