1
|
Hagan K, Mszar R, Cainzos-Achirica M, Blaha MJ, Shapiro MD, Arias L, Saxena A, Cury R, Budoff MJ, Feldman T, Fialkow J, Al-Kindi S, Nasir K. Low-density lipoprotein-cholesterol and subclinical coronary atherosclerosis in a middle-aged asymptomatic U.S. population: The Miami Heart Study at Baptist Health South Florida. Atherosclerosis 2024; 397:118551. [PMID: 39216228 DOI: 10.1016/j.atherosclerosis.2024.118551] [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: 08/04/2023] [Revised: 07/22/2024] [Accepted: 08/06/2024] [Indexed: 09/04/2024]
Abstract
BACKGROUND AND AIMS We aimed to investigate the interplay between low-density lipoprotein-cholesterol (LDL-C) and coronary plaque in asymptomatic cohorts undergoing coronary tomography angiography (CCTA) assessment in the United States. METHODS A cross-sectional analysis of baseline data from 1808 statin-naïve participants in the Miami Heart Study was conducted. We assessed CCTA-detected atherosclerosis (any plaque, noncalcified plaque, maximal stenosis ≥50%, high-risk plaque) across LDL-C levels, coronary artery calcium (CAC) scores (0, 1-99, ≥100), and 10-year cardiovascular risk categories. RESULTS Atherosclerosis presence varied across LDL-C levels: 40% of those with LDL-C ≥190 mg/dL had no coronary plaque, while 33% with LDL-C <70 mg/dL had plaque (22.4% with noncalcified plaque). Among those with CAC 0, plaque prevalence ranged from 13.2% (LDL-C <70 mg/dL) to 28.2% (LDL-C ≥190 mg/dL), noncalcified plaque from 13.2% to 25.6%, stenosis ≥50% from 0 to 2.6%, and high-risk plaque from 0 to 5.1%. Conversely, with CAC ≥100, all had coronary plaque, with noncalcified plaque prevalence ranging from 25.0% (LDL-C <70 mg/dL) to 83.3% (LDL-C ≥190 mg/dL), stenosis ≥50% from 25.0% to 50.0%, and high-risk plaque from 0 to 66.7%. Among low-risk participants, 76.7% had CAC 0, yet 31.5% had any plaque and 18.3% had noncalcified plaque. Positive trends between LDL-C and any plaque (17.9%-45.2%) or noncalcified plaque (12.8%-23.8%) were observed in the low-risk group, but no clear trends were seen in higher-risk groups. CONCLUSIONS Heterogeneity exists in subclinical atherosclerosis across LDL-C, CAC, and estimated cardiovascular risk levels. The value of CCTA in risk-stratifying asymptomatic adults should be further explored.
Collapse
Affiliation(s)
- Kobina Hagan
- Division of Cardiovascular Prevention and Wellness, Department of Cardiology, Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
| | - Reed Mszar
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, CT, USA
| | | | - Michael J Blaha
- Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Michael D Shapiro
- Center for Prevention of Cardiovascular Disease, Section on Cardiology, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Lara Arias
- Miami Cardiac and Vascular Institute, Baptist Health South Florida, Miami, FL, USA
| | - Anshul Saxena
- Miami Cardiac and Vascular Institute, Baptist Health South Florida, Miami, FL, USA
| | - Ricardo Cury
- Miami Cardiac and Vascular Institute, Baptist Health South Florida, Miami, FL, USA; Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Matthew J Budoff
- Harbor-UCLA Medical Center, Torrance, CA, USA; David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Theodore Feldman
- Miami Cardiac and Vascular Institute, Baptist Health South Florida, Miami, FL, USA; Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Jonathan Fialkow
- Miami Cardiac and Vascular Institute, Baptist Health South Florida, Miami, FL, USA
| | - Sadeer Al-Kindi
- Division of Cardiovascular Prevention and Wellness, Department of Cardiology, Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA
| | - Khurram Nasir
- Division of Cardiovascular Prevention and Wellness, Department of Cardiology, Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA.
| |
Collapse
|
2
|
Patel V, Patel J, Gan J, Rahiminejad M, Preston R, Mak SM, Benedetti G. Reporting of coronary artery calcification on chest CT studies in patients with interstitial lung disease. Clin Radiol 2024; 79:e532-e538. [PMID: 38242805 DOI: 10.1016/j.crad.2023.11.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 11/03/2023] [Accepted: 11/29/2023] [Indexed: 01/21/2024]
Abstract
AIM To evaluate the prevalence of coronary artery calcification (CAC) on non-contrast computed tomography (CT) of the thorax in patients with interstitial lung disease (ILD), assess consistency of CAC reporting and assess incidence of subsequent cardiac events. MATERIALS AND METHODS Patients with known interstitial lung disease who underwent a CT thorax over a 2-year period were retrospectively reviewed. Presence of CAC was assessed using a visual scale for CAC reporting and graded as mild, moderate, or severe by two cardiothoracic radiologists. CT reports were reviewed to determine if presence of CAC had been described. Electronic medical records were reviewed for any subsequent cardiothoracic events from the date of the CT thorax to present. RESULTS 254 patients were included in the analysis (54.7% men; mean age 59.9 yo). 43.7% had CAC on their CT thorax; however, in 87.3% of those, reports did not comment on its presence. 8 patients had cardiac events; 7 of them had CAC on CT although only in 1 case this was reported. Global CAC and LAD CAC Patients with cardiac events had a significantly higher global CAC (p=0.016) and LAD CAC (p=0.048) when compared to patients without. CONCLUSION We demonstrated a high prevalence of CAC in ILD patients and its significant association with adverse cardiac events. Unfortunately, CAC on CT thorax is still largely unreported. As per recent BSCI/BSCCT and BSTI guidelines, reporting of CAC should become part of routine practice, as may prompt prevention and impact on patients outcome.
Collapse
Affiliation(s)
- V Patel
- The Royal Marsden, Fulham Road, London, SW3 6JJ, UK
| | - J Patel
- Guy's and St Thomas' NHS Foundation Trust, Westminster Bridge Road, London, SE1 7EH, UK
| | - J Gan
- Guy's and St Thomas' NHS Foundation Trust, Westminster Bridge Road, London, SE1 7EH, UK
| | - M Rahiminejad
- National Hospital for Neurology and Neurosurgery, Queen Square, London, WC1N 3BG, UK
| | - R Preston
- Guy's and St Thomas' NHS Foundation Trust, Westminster Bridge Road, London, SE1 7EH, UK
| | - S M Mak
- Guy's and St Thomas' NHS Foundation Trust, Westminster Bridge Road, London, SE1 7EH, UK
| | - G Benedetti
- Guy's and St Thomas' NHS Foundation Trust, Westminster Bridge Road, London, SE1 7EH, UK.
| |
Collapse
|
3
|
Sama C, Abdelhaleem A, Velu D, Ditah Chobufo M, Fongwen NT, Budoff MJ, Roberts M, Balla S, Mills JD, Njim TN, Greathouse M, Zeb I, Hamirani YS. Non-calcified plaque in asymptomatic patients with zero coronary artery calcium score: A systematic review and meta-analysis. J Cardiovasc Comput Tomogr 2024; 18:43-49. [PMID: 37821352 DOI: 10.1016/j.jcct.2023.10.002] [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: 08/05/2023] [Revised: 09/12/2023] [Accepted: 10/02/2023] [Indexed: 10/13/2023]
Abstract
BACKGROUND There is growing interest in understanding the coronary atherosclerotic burden in asymptomatic patients with zero coronary artery calcium score (CACS). In this population, we aimed to investigate the prevalence and severity of non-calcified coronary plaques (NCP) as detected by coronary CT angiography (CCTA), and to analyze the associated clinical predictors. METHODS This was a systematic review with meta-analysis of studies indexed in PubMed/Medline and Web of Science from inception of the database to March 31st, 2023. Using the random-effects model, separate Forest and Galbraith plots were generated for each effect size assessed. Heterogeneity was assessed using the I2 statistics whilst Funnel plots and Egger's test were used to assess for publication bias. RESULTS From a total of 14 studies comprising 37808 patients, we approximated the pooled summary estimates for the overall prevalence of NCP to be 10% (95%CI: 6%-13%). Similarly, the pooled prevalence of obstructive NCP was estimated at 1.1% (95%CI: 0.7%-1.5%) from a total of 10 studies involving 21531 patients. Hypertension [OR: 1.46 (95%CI:1.31-1.62)] and diabetes mellitus [OR: 1.69 (95%CI: 1.41-1.97)] were significantly associated with developing any NCP, with male gender being the strongest predictor [OR: 3.22 (95%CI: 2.17-4.27)]. CONCLUSION There is a low burden of NCP among asymptomatic subjects with zero CACS. In a subset of this population who have clinical predictors of NCP, the addition of CCTA has a potential to provide a better insight about occult coronary atherosclerosis, however, a risk-benefit approach must be factored in prior to CCTA use given the low prevalence of NCP.
Collapse
Affiliation(s)
- Carlson Sama
- Department of Medicine, Section of Internal Medicine, West Virginia University School of Medicine, WV, USA
| | - Ahmed Abdelhaleem
- Department of Medicine, Division of Cardiovascular Diseases, West Virginia University School of Medicine, WV, USA
| | - Dhivya Velu
- Department of Medicine, Division of Cardiovascular Diseases, West Virginia University School of Medicine, WV, USA
| | - Muchi Ditah Chobufo
- Department of Medicine, Division of Cardiovascular Diseases, West Virginia University School of Medicine, WV, USA
| | - Noah T Fongwen
- London School of Hygiene and Tropical Medicine & Africa Centres for Disease Control and Prevention (Africa CDC), Addis Ababa, Ethiopia
| | - Matthew J Budoff
- Division of Cardiology, Harbor-UCLA Medical Center and the Lundquist Institute for Biomedical Innovation, Torrance, CA, USA
| | - Melissa Roberts
- Department of Medicine, Section of Internal Medicine, West Virginia University School of Medicine, WV, USA
| | - Sudarshan Balla
- Department of Medicine, Division of Cardiovascular Diseases, West Virginia University School of Medicine, WV, USA
| | - James D Mills
- Department of Medicine, Division of Cardiovascular Diseases, West Virginia University School of Medicine, WV, USA
| | - Tsi N Njim
- Department of International Public Health, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Mark Greathouse
- Department of Medicine, Division of Cardiovascular Diseases, West Virginia University School of Medicine, WV, USA
| | - Irfan Zeb
- Department of Medicine, Division of Cardiovascular Diseases, West Virginia University School of Medicine, WV, USA
| | - Yasmin S Hamirani
- Department of Medicine, Division of Cardiovascular Diseases, West Virginia University School of Medicine, WV, USA.
| |
Collapse
|
4
|
Al-Mosawi AA, Nafakhi H, Alabayechi YS. Pericardial fat volume and coronary risk factors as predictors of non-calcified coronary plaque presence among patients with coronary calcium score = 0. Indian Heart J 2024; 76:51-53. [PMID: 38128878 PMCID: PMC10943564 DOI: 10.1016/j.ihj.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 11/05/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023] Open
Abstract
INTRODUCTION There is scarce data linking pericardial fat volume (PFV) and classical coronary risk factors with non-calcified plaque presence among patients with CAC = 0 in the literature. MATERIAL AND METHOD A total of 811 patients with chest pain suggestive of angina underwent CT coronary angiography for the assessment of coronary artery disease were collected. Of these, 417 with CAC = 0 were included in the analysis. RESULT Patients with non-calcified plaque were older (54 ± 9 versus 50 ± 10, P = 0.01) and had a higher prevalence of diabetes mellitus (31% versus 17%, P = 0.02), high BMI (29.9 versus 28.3, P = 0.04), and increased PFV (123 cm3 versus 99 cm3, P < 0.01) compared to patients without plaque. In multivariate regression analysis, high BMI[OR(CI) = 1.1(1-1.3), P = 0.02] was an independent predictor of non-calcified coronary plaque presence among patients with CAC = 0 after adjustment to variables with P < 0.05 in the univariate analysis. CONCLUSION In patients with a CAC score of 0, advanced age, diabetes mellitus, increased PFV, and high BMI were all associated with the presence of non-calcified plaque. After multivariate adjustment, increased BMI remained a significant independent predictor for non-calcified plaque presence.
Collapse
Affiliation(s)
| | - Hussein Nafakhi
- Internal Medicine Department, Medicine College, University of Kufa, P.O. 21, Kufa, Najaf, Iraq.
| | | |
Collapse
|
5
|
Alyami B, Santer M, Seetharam K, Velu D, Gadde E, Patel B, Hamirani YS. Non-Calcified Coronary Artery Plaque on Coronary Computed Tomography Angiogram: Prevalence and Significance. Tomography 2023; 9:1755-1771. [PMID: 37736993 PMCID: PMC10514817 DOI: 10.3390/tomography9050140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/10/2023] [Accepted: 09/12/2023] [Indexed: 09/23/2023] Open
Abstract
OBJECTIVE We aimed to assess the prevalence of non-calcified plaque (NCP) on computed tomography angiography (CCTA) in symptomatic and asymptomatic individuals. In addition, we seek to compare plaque assessment on CCTA with intravascular ultrasound-virtual histology (IVUS-VH) and to assess the prognostic value of non-calcified plaques (NCPs). BACKGROUND The CCTA can characterize coronary plaques and help quantify burden. Furthermore, it can provide additional prognostic information which can enable further risk stratification of patients. METHODS We performed a broad comprehensive review of the current literature pertaining to CCTA and primarily isolated NCP in symptomatic and asymptomatic patients. In addition, our review included studies correlating plaque on CT with IVUS-VH. CONCLUSIONS NCP is the initial precursor of calcified plaque and serves as a prominent marker of early coronary atherosclerosis. By detecting NCP during early stages, several measures can be implemented which can alter the evolutionary course of the underlying disease. This can potentially lead to a lower incidence of cardiovascular events.
Collapse
Affiliation(s)
- Bandar Alyami
- Department of Medicine, School of Medicine, West Virginia University, Morgantown, WV 26506, USA; (B.A.); (M.S.); (B.P.)
| | - Matthew Santer
- Department of Medicine, School of Medicine, West Virginia University, Morgantown, WV 26506, USA; (B.A.); (M.S.); (B.P.)
| | - Karthik Seetharam
- Department of Cardiology, Heart and Vascular Institute, West Virginia University, Morgantown, WV 26506, USA; (K.S.); (D.V.)
| | - Dhivya Velu
- Department of Cardiology, Heart and Vascular Institute, West Virginia University, Morgantown, WV 26506, USA; (K.S.); (D.V.)
| | - Eswar Gadde
- Department of Medicine, West Virginia University, Charleston, WV 25304, USA;
| | - Bansari Patel
- Department of Medicine, School of Medicine, West Virginia University, Morgantown, WV 26506, USA; (B.A.); (M.S.); (B.P.)
| | - Yasmin S. Hamirani
- Department of Cardiology, Heart and Vascular Institute, West Virginia University, Morgantown, WV 26506, USA; (K.S.); (D.V.)
| |
Collapse
|
6
|
Huang EPY, Lin HS, Chen YC, Li YH, Huang YL, Ju YJ, Yu HC, Kicska GA, Wu MT. Lower attenuation and higher kurtosis of coronary artery calcification associated with vulnerable plaque - an agatston score propensity-matched CT radiomics study. BMC Cardiovasc Disord 2023; 23:158. [PMID: 36973668 PMCID: PMC10045966 DOI: 10.1186/s12872-023-03162-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 03/01/2023] [Indexed: 03/29/2023] Open
Abstract
BACKGROUND Coronary artery calcification (CAC) burden assessed by Agatston score (AS) is currently recommended to stratify patients at risk for future acute coronary syndrome (ACS). Besides the CAC burden, the biostructure of CAC may also play a vital role in the vulnerability of CAC, which CT radiomics could reveal. Propensity-score matching of the traditional risk factors and CAC burden between the ACS and asymptomatic groups could radically remove biases and allow the exploration of characteristic features of CAC in ACS. METHODS We retrospectively identified 77 patients with ACS who had a CAC scan before percutaneous coronary intervention between 2016 and 2019. These 77 patients were one-to-two propensity-score matched for traditional risk factors of ACS and AS ranks to select 154 subjects from 2890 asymptomatic subjects. A validation cohort of 30 subjects was also enrolled. Radiomics features of each plaque were extracted and averaged in each person. Conditional logistic regression and area-under-curve analysis were used for statistical analysis. RESULTS A higher number of coronary segments involved, lower mean, median, first quartile, and standard deviation of attenuation, and increased kurtosis of attenuation of CAC were associated with the ACS group compared to the control group (p < 0.05 for all). Multivariable analysis showed that the lower median attenuation (OR = 0.969, p < 0.001) and higher Kurtosis (OR = 18.7, p < 0.001) were associated with the ACS group. The median attenuation and kurtosis significantly increase across AS ranks 1 to 4 (p = 0.001). The AUC of kurtosis (0.727) and median attenuation (0.66) were both significantly higher than that of the standard AS (AUC = 0.502) and the number of TRF (AUC = 0.537). The best cut-off of kurtosis at 2.74 yielded an accuracy of 74%, and the cut-off of median attenuation at 196 yielded an accuracy of 68%. The accuracy of kurtosis was 64%, and the accuracy of median attenuation was 55% in the validation cohort. CONCLUSION After propensity-matching traditional risk factors and CAC burden, CT radiomics highlighted that lower median attenuation and higher kurtosis were the CAC characteristics of vulnerable plaques. These features improve the understanding of the biomechanics of CAC evolution and enhance the value of CAC scan in ACS risk assessment.
Collapse
Affiliation(s)
- Eric Po-Yu Huang
- Department of Radiology, Kaohsiung Veterans General Hospital, No. 386, Ta-Chung Dazhong 1st Road, Kaohsiung City, 813414, Taiwan
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, No.155, Sec.2, Linong Street, Taipei, 11221, Taiwan
- Department of Radiology, New Taipei City Hospital, No. 3, Sec. 1, New Taipei Blvd., Sanchong Dist., New Taipei City, 241204, Taiwan
| | - Huey-Shyan Lin
- Department of Health-Business Administration, Fooyin University, 151 Chin-Hsueh Rd., Ta-Liao District, Kaohsiung, 831301, Taiwan
| | - Yi-Chun Chen
- Department of Radiology, Kaohsiung Veterans General Hospital, No. 386, Ta-Chung Dazhong 1st Road, Kaohsiung City, 813414, Taiwan
| | - Yi-He Li
- Department of Radiology, Kaohsiung Veterans General Hospital, No. 386, Ta-Chung Dazhong 1st Road, Kaohsiung City, 813414, Taiwan
| | - Yi-Luan Huang
- Department of Radiology, Kaohsiung Veterans General Hospital, No. 386, Ta-Chung Dazhong 1st Road, Kaohsiung City, 813414, Taiwan
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, No.155, Sec.2, Linong Street, Taipei, 11221, Taiwan
| | - Yu-Jeng Ju
- Department of Radiology, Kaohsiung Veterans General Hospital, No. 386, Ta-Chung Dazhong 1st Road, Kaohsiung City, 813414, Taiwan
- Department of Psychology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd, Taipei, 10617, Taiwan
| | - Hsien-Chung Yu
- Health Management Center, Kaohsiung Veterans General Hospital, No. 386, Ta- Chung 1st Road, Kaohsiung, 813414, Taiwan
| | - Gregory A Kicska
- Section Chief of Thoracic Imaging, Radiology, University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, United States of America
| | - Ming-Ting Wu
- Department of Radiology, Kaohsiung Veterans General Hospital, No. 386, Ta-Chung Dazhong 1st Road, Kaohsiung City, 813414, Taiwan.
- Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, No.155, Sec.2, Linong Street, Taipei, 11221, Taiwan.
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, No.155, Sec.2, Linong Street, Taipei, 11221, Taiwan.
| |
Collapse
|
7
|
Agarwala A, Satish P, Al Rifai M, Mehta A, Cainzos-Achirica M, Shah NS, Kanaya AM, Sharma GV, Dixon DL, Blumenthal RS, Natarajan P, Nasir K, Virani SS, Patel J. Identification and Management of Atherosclerotic Cardiovascular Disease Risk in South Asian Populations in the U.S. JACC. ADVANCES 2023; 2:100258. [PMID: 38089916 PMCID: PMC10715803 DOI: 10.1016/j.jacadv.2023.100258] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/15/2022] [Accepted: 12/13/2022] [Indexed: 12/20/2023]
Abstract
South Asians (SAs, individuals with ancestry from Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, and Sri Lanka) are among the fastest growing ethnic subgroups in the United States. SAs typically experience a high prevalence of diabetes, abdominal obesity, and hypertension, among other cardiovascular disease risk factors, which are often under recognized and undermanaged. The excess coronary heart disease risk in this growing population must be critically assessed and managed with culturally appropriate preventive services. Accordingly, this scientific document prepared by a multidisciplinary group of clinicians and investigators in cardiology, internal medicine, pharmacy, and SA-centric researchers describes key characteristics of traditional and nontraditional cardiovascular disease risk factors, compares and contrasts available risk assessment tools, discusses the role of blood-based biomarkers and coronary artery calcium to enhance risk assessment and prevention strategies, and provides evidenced-based approaches and interventions that may reduce coronary heart disease disparities in this higher-risk population.
Collapse
Affiliation(s)
- Anandita Agarwala
- Center for Cardiovascular Disease Prevention, Baylor Scott and White Health Heart Hospital Baylor Plano, Plano, Texas, USA
| | - Priyanka Satish
- Division of Cardiovascular Prevention and Wellness, Houston Methodist DeBakey Heart and Vascular Center, Houston, Texas, USA
| | - Mahmoud Al Rifai
- Houston Methodist DeBakey Heart and Vascular Center, Houston, Texas, USA
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, South Asian Cardiovascular Health Initiative (SACHI), Baltimore, Maryland, USA
| | - Anurag Mehta
- Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Miguel Cainzos-Achirica
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, South Asian Cardiovascular Health Initiative (SACHI), Baltimore, Maryland, USA
- Institut Hospital del Mar d’Investigacions Mediques (IMIM), Barcelona, Spain
- Hospital del Mar, Parc Salut Mar, Barcelona, Spain
| | - Nilay S. Shah
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Alka M. Kanaya
- Division of General Internal Medicine, University of California San Francisco, San Francisco, California, USA
| | - Garima V. Sharma
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, South Asian Cardiovascular Health Initiative (SACHI), Baltimore, Maryland, USA
| | - Dave L. Dixon
- Pauley Heart Center, Virginia Commonwealth University, Richmond, Virginia, USA
- Department of Pharmacotherapy & Outcomes Science, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Roger S. Blumenthal
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, South Asian Cardiovascular Health Initiative (SACHI), Baltimore, Maryland, USA
| | - Pradeep Natarajan
- Cardiovascular Disease Initiative Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
- Cardiovascular Research Center Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Khurram Nasir
- Division of Cardiovascular Prevention and Wellness, Houston Methodist DeBakey Heart and Vascular Center, Houston, Texas, USA
- Center for Outcomes Research, Houston Methodist, Houston, Texas, USA
| | - Salim S. Virani
- Aga Khan University, Karachi, Pakistan
- Texas Heart Institute, Baylor College of Medicine, Houston, Texas, USA
| | - Jaideep Patel
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, South Asian Cardiovascular Health Initiative (SACHI), Baltimore, Maryland, USA
| |
Collapse
|
8
|
Razavi AC, Uddin SMI, Dardari ZA, Berman DS, Budoff MJ, Miedema MD, Osei AD, Obisesan OH, Nasir K, Rozanski A, Rumberger JA, Shaw LJ, Sperling LS, Whelton SP, Mortensen MB, Blaha MJ, Dzaye O. Coronary Artery Calcium for Risk Stratification of Sudden Cardiac Death: The Coronary Artery Calcium Consortium. JACC Cardiovasc Imaging 2022; 15:1259-1270. [PMID: 35370113 PMCID: PMC9262828 DOI: 10.1016/j.jcmg.2022.02.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 02/07/2022] [Accepted: 02/23/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND Coronary artery calcium (CAC) is a marker of plaque burden. Whether CAC improves risk stratification for incident sudden cardiac death (SCD) beyond atherosclerotic cardiovascular disease (ASCVD) risk factors is unknown. OBJECTIVES SCD is a common initial manifestation of coronary heart disease (CHD); however, SCD risk prediction remains elusive. METHODS The authors studied 66,636 primary prevention patients from the CAC Consortium. Multivariable competing risks regression and C-statistics were used to assess the association between CAC and SCD, adjusting for demographics and traditional risk factors. RESULTS The mean age was 54.4 years, 33% were women, 11% were of non-White ethnicity, and 55% had CAC >0. A total of 211 SCD events (0.3%) were observed during a median follow-up of 10.6 years, 91% occurring among those with baseline CAC >0. Compared with CAC = 0, there was a stepwise higher risk (P trend < 0.001) in SCD for CAC 100 to 399 (subdistribution hazard ratio [SHR]: 2.8; 95% CI: 1.6-5.0), CAC 400 to 999 (SHR: 4.0; 95% CI: 2.2-7.3), and CAC >1,000 (SHR: 4.9; 95% CI: 2.6-9.9). CAC provided incremental improvements in the C-statistic for the prediction of SCD among individuals with a 10-year risk <7.5% (ΔC-statistic = +0.046; P = 0.02) and 7.5% to 20% (ΔC-statistic = +0.069; P = 0.003), which were larger when compared with persons with a 10-year risk >20% (ΔC-statistic = +0.01; P = 0.54). CONCLUSIONS Higher CAC burden strongly associates with incident SCD beyond traditional risk factors, particularly among primary prevention patients with low-intermediate risk. SCD risk stratification can be useful in the early stages of CHD through the measurement of CAC, identifying patients most likely to benefit from further downstream testing.
Collapse
Affiliation(s)
- Alexander C Razavi
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Emory Center for Heart Disease Prevention, Emory University School of Medicine, Atlanta, Georgia, USA
| | - S M Iftekhar Uddin
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Zeina A Dardari
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Daniel S Berman
- Department of Imaging, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Matthew J Budoff
- Lundquist Institute, Harbor-UCLA Medical Center, Torrance, California, USA
| | - Michael D Miedema
- Minneapolis Heart Institute and Foundation, Minneapolis, Minnesota, USA
| | - Albert D Osei
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Olufunmilayo H Obisesan
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Khurram Nasir
- Division of Cardiovascular Prevention and Wellness, Houston Methodist DeBakey Heart and Vascular Center, Houston, Texas, USA
| | - Alan Rozanski
- Division of Cardiology, Mount Sinai, St Luke's Hospital, New York, New York, USA
| | - John A Rumberger
- Department of Cardiac Imaging, Princeton Longevity Center, Princeton, New Jersey, USA
| | - Leslee J Shaw
- Department of Radiology, Weill Cornell Medicine, New York, New York, USA
| | - Laurence S Sperling
- Emory Center for Heart Disease Prevention, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Seamus P Whelton
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Martin Bødtker Mortensen
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Michael J Blaha
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Omar Dzaye
- Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
| |
Collapse
|
9
|
Nasir K, Ziffer JA, Cainzos-Achirica M, Ali SS, Feldman DI, Arias L, Saxena A, Feldman T, Cury R, Budoff MJ, Fialkow J. The Miami Heart Study (MiHeart) at Baptist Health South Florida, A prospective study of subclinical cardiovascular disease and emerging cardiovascular risk factors in asymptomatic young and middle-aged adults: The Miami Heart Study: Rationale and Design. Am J Prev Cardiol 2021; 7:100202. [PMID: 34611641 PMCID: PMC8387278 DOI: 10.1016/j.ajpc.2021.100202] [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] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 05/21/2021] [Accepted: 05/25/2021] [Indexed: 12/26/2022] Open
Abstract
Objective The Miami Heart Study (MiHeart) at Baptist Health South Florida is an ongoing, community-based, prospective cohort study aimed at characterizing the prevalence, characteristics, and prognostic value of diverse markers of early subclinical coronary atherosclerosis and of various potential demographic, psychosocial, and metabolic risk factors. We present the study objectives, detailed research methods, and preliminary baseline results of MiHeart. Methods MiHeart enrolled 2,459 middle-aged male and female participants from the general population of the Greater Miami Area. Enrollment occurred between May 2015 and September 2018 and was restricted to participants aged 40–65 years free of clinical cardiovascular disease (CVD). The baseline examination included assessment of demographics, lifestyles, medical history, and a detailed evaluation of psychosocial characteristics; a comprehensive physical exam; measurement of multiple blood biomarkers including measures of inflammation, advanced lipid testing, and genomics; assessment of subclinical coronary atherosclerotic plaque and vascular function using coronary computed tomography angiography, the coronary artery calcium score, carotid intima-media thickness, pulse wave velocity, and peripheral arterial tonometry; and other tests including 12-lead electrocardiography and assessment of pulmonary function. Blood samples were biobanked to facilitate future ancillary research. Results MiHeart enrolled 1,261 men (51.3%) and 1,198 women (48.7%). Mean age was 53 years, 85.6% participants were White and 47.4% were of Hispanic/Latino ethnicity. The study included 7% individuals with diabetes, 33% with hypertension, and 15% used statin therapy at baseline. Overweight or obese participants comprised 72% of the population and 3% were smokers. Median 10-year estimated atherosclerotic CVD risk using the Pooled Cohort Equations was 4%. Conclusion MiHeart will provide important, novel insights into the pathophysiology of early subclinical atherosclerosis and further our understanding of its role in the genesis of clinical CVD. The study findings will have important implications, further refining current cardiovascular prevention paradigms and risk assessment and management approaches moving forward.
Collapse
Key Words
- Atherosclerosis
- BHSF, Baptist Health South Florida
- CAC, coronary artery calcium
- CCTA, coronary computed tomography angiography
- CIMT, carotid intima media thickness
- CT, computed tomography
- CVD, cardiovascular disease
- Cardiovascular disease
- Cohort studies
- Coronary computed tomography
- EDTA, ethylenediaminetetraacetic acid
- Epidemiology
- Hispanic/Latino
- IRB, Institutional Review Board
- MESA, Multi-Ethnic Study of Atherosclerosis
- MiHeart, Miami Heart Study
- NHW, non-Hispanic Whites
- Populations
- Primary prevention
Collapse
Affiliation(s)
- Khurram Nasir
- Division of Cardiovascular Prevention and Wellness, Department of Cardiology, Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA.,Center for Outcomes Research, Houston Methodist Hospital, Houston, TX, USA
| | - Jack A Ziffer
- Miami Cardiac and Vascular Institute, Baptist Health South Florida, Miami, FL, USA
| | - Miguel Cainzos-Achirica
- Division of Cardiovascular Prevention and Wellness, Department of Cardiology, Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, USA.,Center for Outcomes Research, Houston Methodist Hospital, Houston, TX, USA
| | - Shozab S Ali
- Miami Cardiac and Vascular Institute, Baptist Health South Florida, Miami, FL, USA.,Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - David I Feldman
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Lara Arias
- Miami Cardiac and Vascular Institute, Baptist Health South Florida, Miami, FL, USA
| | - Anshul Saxena
- Miami Cardiac and Vascular Institute, Baptist Health South Florida, Miami, FL, USA
| | - Theodore Feldman
- Miami Cardiac and Vascular Institute, Baptist Health South Florida, Miami, FL, USA.,Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Ricardo Cury
- Miami Cardiac and Vascular Institute, Baptist Health South Florida, Miami, FL, USA.,Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Matthew J Budoff
- Harbor-UCLA Medical Center, Torrance, CA, USA.,David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - Jonathan Fialkow
- Miami Cardiac and Vascular Institute, Baptist Health South Florida, Miami, FL, USA
| |
Collapse
|
10
|
Recent Trends in Artificial Intelligence-Assisted Coronary Atherosclerotic Plaque Characterization. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph181910003. [PMID: 34639303 PMCID: PMC8508413 DOI: 10.3390/ijerph181910003] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/12/2021] [Accepted: 09/17/2021] [Indexed: 01/21/2023]
Abstract
Coronary artery disease is a major cause of morbidity and mortality worldwide. Its underlying histopathology is the atherosclerotic plaque, which comprises lipid, fibrous and—when chronic—calcium components. Intravascular ultrasound (IVUS) and intravascular optical coherence tomography (IVOCT) performed during invasive coronary angiography are reference standards for characterizing the atherosclerotic plaque. Fine image spatial resolution attainable with contemporary coronary computed tomographic angiography (CCTA) has enabled noninvasive plaque assessment, including identifying features associated with vulnerable plaques known to presage acute coronary events. Manual interpretation of IVUS, IVOCT and CCTA images demands scarce physician expertise and high time cost. This has motivated recent research into and development of artificial intelligence (AI)-assisted methods for image processing, feature extraction, plaque identification and characterization. We performed parallel searches of the medical and technical literature from 1995 to 2021 focusing respectively on human plaque characterization using various imaging modalities and the use of AI-assisted computer aided diagnosis (CAD) to detect and classify atherosclerotic plaques, including their composition and the presence of high-risk features denoting vulnerable plaques. A total of 122 publications were selected for evaluation and the analysis was summarized in terms of data sources, methods—machine versus deep learning—and performance metrics. Trends in AI-assisted plaque characterization are detailed and prospective research challenges discussed. Future directions for the development of accurate and efficient CAD systems to characterize plaque noninvasively using CCTA are proposed.
Collapse
|
11
|
Pursnani A, Taron J, Mayrhofer T, Lu MT, Ferencik M, Ladapo JA, Douglas PS, Hoffmann U. Guideline-Based Statin Eligibility, Coronary Artery Stenosis and Cardiovascular Events in Patients with Stable Chest Pain: A Secondary Analysis of the PROMISE Randomized Clinical Trial. J Clin Med 2020; 9:E3076. [PMID: 32987771 PMCID: PMC7598635 DOI: 10.3390/jcm9103076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/11/2020] [Accepted: 09/14/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Recommendations for preventive statin treatment in patients with stable chest pain may be difficult as symptoms can be unspecific. It is unclear if coronary CT angiography (CTA)-detected coronary artery disease (CAD) can optimize statin prescription. METHODS In stable chest pain patients randomized to CTA in the PROMISE trial, statin eligibility was defined per 2018 American College of Cardiology/American Heart Association (ACC/AHA) guidelines. Primary outcome was a composite of death, myocardial infarction or unstable angina over 26 months median follow-up. Hazard ratios (HR) of non-obstructive (1-69% stenosis) and obstructive (≥70% stenosis) CAD for events were determined using Cox proportional hazard models. Calculated HR were then incorporated into the ACC/AHA pooled cohort equation (PCE) to revised ASCVD risk and assess re-classification of statin eligibility. RESULTS Among 3986 patients (60.5 ± 8.2 years; 51% female), 72.9% (2904/3986) were statin eligible. Event rates in statin-eligible vs. ineligible patients were 3.3% vs. 2.3% (HR = 1.4 (95% CI 0.9-2.2), p = 0.142). Although the proportion of statin-eligible patients increased with CAD severity, 54% without CAD were statin eligible. Incorporating information on CAD into PCE reclassified 12.7% of patients (1.3% towards statin, 11.4% towards no statin). Similar results were found in stratified analysis of statin naïve patients (reclassification of 13.9%, 1.0% towards statin, and 12.9% towards no statin). As a result, revised ASCVD risk improved model discrimination in all patients (c-statistic: 0.59 (95 %CI 0.55-0.62) vs. 0.52 (95 %CI 0.49-0.56); p 0.001), while reducing statin use by 10.1% (62.7% vs. 72.9% statin eligible, p 0.001). CONCLUSION In stable chest pain patients, integration of CAD into guideline recommendations was associated with greater accuracy to reclassify those at increased risk for incident events and a more efficient use of statins.
Collapse
Affiliation(s)
- Amit Pursnani
- Cardiology Division, NorthShore University Health System, Evanston, IL 60201, USA;
| | - Jana Taron
- Cardiovascular Imaging Research Center, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; (T.M.); (M.T.L.); (U.H.)
- Department of Radiology, Freiburg University Hospital, 79106 Freiburg, Germany
| | - Thomas Mayrhofer
- Cardiovascular Imaging Research Center, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; (T.M.); (M.T.L.); (U.H.)
- School of Business Studies, Stralsund University of Applied Sciences, 81435 Stralsund, Germany
| | - Michael T. Lu
- Cardiovascular Imaging Research Center, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; (T.M.); (M.T.L.); (U.H.)
| | - Maros Ferencik
- Knight Cardiovascular Institute, Oregon Health and Science University, Portland, OR 97239, USA;
| | - Joseph A. Ladapo
- Division of General Internal Medicine and Health Services Research, David Geffen School of Medicine at UCLA, Los Angeles, CA 90024, USA;
| | - Pamela S. Douglas
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC 27708, USA;
| | - Udo Hoffmann
- Cardiovascular Imaging Research Center, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA; (T.M.); (M.T.L.); (U.H.)
| |
Collapse
|
12
|
Lin A, Nerlekar N, Rajagopalan A, Yuvaraj J, Modi R, Mirzaee S, Munnur RK, Seckington M, Doery JCG, Seneviratne S, Nicholls SJ, Wong DTL. Remnant cholesterol and coronary atherosclerotic plaque burden assessed by computed tomography coronary angiography. Atherosclerosis 2019; 284:24-30. [DOI: 10.1016/j.atherosclerosis.2019.02.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 02/22/2019] [Accepted: 02/22/2019] [Indexed: 02/08/2023]
|
13
|
Sex differences in coronary artery plaque composition detected by coronary computed tomography: quantitative and qualitative analysis. Neth Heart J 2019; 27:272-280. [PMID: 30734147 PMCID: PMC6470243 DOI: 10.1007/s12471-019-1234-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background Sex differences in the calculation of coronary heart disease risk have been analysed extensively. However, data on coronary plaque morphology diverge. We analysed plaque characteristics in patients with suspected coronary artery disease (CAD) and defined prognostic factors using coronary computed tomography angiography (CCTA). Methods A total of 6,050 consecutive patients underwent CCTA and were enrolled in the registry. Patients with known CAD were excluded. The patients were propensity score matched (1:1 male:female) for age and known coronary risk factors. Coronary arteries were evaluated for stenosis, plaque types (non-calcified, mixed and calcified) and high-risk plaque features (napkin-ring sign, low-attenuation plaque, spotty calcifications, positive remodelling). Clinical follow-up was performed. Results A total of 1,050 patients (525 female, 525 male) in matched cohorts were selected for analysis. CCTA showed significantly higher calcium scores for males (mean 180.5 vs 67.8 AU, p < 0.0001) and a higher rate of CAD (66.0% vs 34.1%, p < 0.0001). In a total of 16,800 segments, males had significantly more plaques (861 vs 752, p < 0.0001) with a significantly larger proportion of calcified plaques, while females had more mixed and non-calcified plaques (33.5% vs 24.4%, p = 0.006 and 24.1% vs 13.6%, p = 0.22, respectively). After a mean follow-up of 5.6 years, major adverse cardiac event (MACE) rate was 5.3% in male and 1.9% in female patients (p < 0.05). The relative odds ratio for high-risk plaque features to predict MACE was higher in females. Conclusion Based on a higher relative risk for women with high-risk plaque features, the findings of our study support the increased importance of a differentiated qualitative plaque analysis to improve the risk stratification for both sexes.
Collapse
|
14
|
Beyer C, Plank F, Friedrich G, Wildauer M, Feuchtner G. Effects of Hyperthyroidism on Coronary Artery Disease: A Computed Tomography Angiography Study. Can J Cardiol 2017; 33:1327-1334. [DOI: 10.1016/j.cjca.2017.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 07/03/2017] [Accepted: 07/03/2017] [Indexed: 10/19/2022] Open
|
15
|
Garg PK, McClelland RL, Jenny NS, Criqui MH, Greenland P, Rosenson RS, Siscovick DS, Jorgensen N, Cushman M. Lipoprotein-associated phospholipase A2 and risk of incident cardiovascular disease in a multi-ethnic cohort: The multi ethnic study of atherosclerosis. Atherosclerosis 2015; 241:176-82. [PMID: 26004387 PMCID: PMC4504012 DOI: 10.1016/j.atherosclerosis.2015.05.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 04/10/2015] [Accepted: 05/13/2015] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Prospective studies reporting a positive association of lipoprotein-associated phospholipase A2 (Lp-PLA2) mass and activity with incident cardiovascular disease (CVD) have included primarily white individuals. We evaluated associations of Lp-PLA2 and first-time cardiovascular events in a healthy multi-ethnic cohort characterized by presence or absence of baseline subclinical atherosclerosis. METHODS Lp-PLA2 mass and activity were measured at baseline in 5456 participants in the Multi-Ethnic Study of Atherosclerosis. Individuals were characterized for presence of baseline subclinical disease (coronary artery calcium score > 0 or carotid intima-media thickness value > 80th percentile) and followed prospectively for development of CVD events (coronary heart disease, ischemic stroke, and cardiovascular death). RESULTS 516 incident CVD events occurred over median follow-up of 10.2 years. In adjusted Cox proportional hazards models, each higher standard deviation of both Lp-PLA2 activity and mass was associated with an increased risk of cardiovascular events; hazard ratios (HR; 95% confidence intervals (CI)) 1.12 (1.01-1.26) for Lp-PLA2 activity and 1.10 (1.01-1.21) for mass. Associations did not differ by subclinical disease status (p-value for interaction 0.99 for Lp-PLA2 activity and 0.32 for Lp-PLA2 mass) and there was no confounding by subclinical atherosclerosis measures. Associations of Lp-PLA2 activity but not mass were weaker in Chinese participants but there were relatively few events among Chinese in race-stratified analysis. CONCLUSION In this multi-ethnic cohort, Lp-PLA2 was positively associated with CVD risk, regardless of the presence of coronary artery calcium or a thickened carotid-intimal media.
Collapse
Affiliation(s)
- Parveen K Garg
- Division of Cardiovascular Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | | | - Nancy S Jenny
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, VT, USA
| | - Michael H Criqui
- Department of Family & Preventive Medicine, University of California in San Diego, La Jolla, CA, USA
| | - Philip Greenland
- Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA; Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Robert S Rosenson
- Mount Sinai Heart, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Neal Jorgensen
- Department of Biostatistics, University of Washington, Seattle, WA, USA
| | - Mary Cushman
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, VT, USA; Department of Medicine, University of Vermont College of Medicine, Burlington, VT, USA.
| |
Collapse
|
16
|
Tam LM, Kim J, Blumenthal RS, Nasir K, Al-Mallah MH, Blaha MJ. Absolute coronary artery calcium score is the best predictor of non-calcified plaque involvement in patients with low calcium scores (1-100). Atherosclerosis 2013; 230:76-9. [PMID: 23958256 DOI: 10.1016/j.atherosclerosis.2013.06.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 06/12/2013] [Accepted: 06/22/2013] [Indexed: 11/29/2022]
Abstract
OBJECTIVE We sought to identify the predictors of non-calcified plaque (NCP) burden in patients with low coronary artery calcium (CAC) scores of 1-100. METHODS We studied 920 consecutive patients clinically referred for coronary CT angiography (CCTA) with concomitant CAC scoring. The 276 patients with CAC 1-100 were divided into four groups based on the CAC score: CAC = 0, 1-10, 11-50, and 51-100. Univariate and multivariate linear regression analyses were performed for the demographic, risk factor, and CAC score predictors of number of coronary segments with NCP. RESULTS Mean age was 55 ± 11 years and 56% were women. Demographics and risk factors failed to identify NCP involvement in univariate models. The lone predictor of NCP burden was the absolute CAC score, which was persistently associated with NCP in multivariable models (CAC 51-100 vs. CAC 1-10, β-coefficient 0.35, p = 0.03). CONCLUSIONS Absolute CAC score is the lone robust predictor of NCP burden when CAC is 1-100. Risk within this mild coronary calcification group is likely heterogeneous, driven by the absolute CAC score.
Collapse
Affiliation(s)
- Lori M Tam
- The Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, Baltimore, MD 21287, USA
| | | | | | | | | | | |
Collapse
|
17
|
Kwan AC, Cater G, Vargas J, Bluemke DA. Beyond Coronary Stenosis: Coronary Computed Tomographic Angiography for the Assessment of Atherosclerotic Plaque Burden. CURRENT CARDIOVASCULAR IMAGING REPORTS 2013; 6:89-101. [PMID: 23524381 PMCID: PMC3601491 DOI: 10.1007/s12410-012-9183-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Coronary computed tomographic angiography (CCTA) is emerging as a key non-invasive method for assessing cardiovascular risk by measurement of coronary stenosis and coronary artery calcium (CAC). New advancements in CCTA technology have led to the ability to directly identify and quantify the so-called "vulnerable" plaques that have features of positive remodeling and low density components. In addition, CCTA presents a new opportunity for noninvasive measurement of total coronary plaque burden that has not previously been available. The use of CCTA needs also to be balanced by its risks and, in particular, the associated radiation exposure. We review current uses of CCTA, CCTA's ability to measure plaque quantity and characteristics, and new developments in risk stratification and CCTA technology. CCTA represents a quickly developing field that will play a growing role in the non-invasive management of cardiovascular disease.
Collapse
Affiliation(s)
- Alan C Kwan
- Radiology and Imaging Sciences - National Institutes of Health Clinical Center, Bethesda, MD, USA
| | | | | | | |
Collapse
|
18
|
Kiani AN, Vogel-Claussen J, Arbab-Zadeh A, Magder LS, Lima J, Petri M. Semiquantified noncalcified coronary plaque in systemic lupus erythematosus. J Rheumatol 2012; 39:2286-93. [PMID: 23027889 DOI: 10.3899/jrheum.120197] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE A major cause of morbidity and mortality in systemic lupus erythematosus (SLE) is accelerated coronary atherosclerosis. New technology (computed tomographic angiography) can measure noncalcified coronary plaque (NCP), which is more prone to rupture. We report on a study of semiquantified NCP in SLE. METHODS Patients with SLE (n = 147) with no history of cardiovascular disease underwent 64-slice coronary multidetector computed tomography (MDCT). The MDCT scans were evaluated quantitatively by a radiologist, using dedicated software. RESULTS The group of 147 patients with SLE was 86% female, 70% white, 29% African American, and 3% other ethnicity. The mean age was 51 years. In our univariate analysis, the major traditional cardiovascular risk factors associated with noncalcified plaque were age (p = 0.007), obesity (p = 0.03; measured as body mass index), homocysteine (p = 0.05), and hypertension (p = 0.04). Anticardiolipin (p = 0.026; but not lupus anticoagulant) and anti-dsDNA (p = 0.03) were associated with higher noncalcified plaque. Prednisone and hydroxychloroquine therapy had no effect, but methotrexate (MTX) use was associated with higher noncalcified plaque (p = 0.0001). In the best multivariate model, age, current MTX use, and history of anti-dsDNA remained significant. CONCLUSION Our results suggest that serologic SLE (anti-dsDNA) and traditional cardiovascular risk factors contribute to semiquantified noncalcified plaque in SLE. The association with MTX is not understood, but should be replicated in larger studies and in multiple centers.
Collapse
Affiliation(s)
- Adnan N Kiani
- Division of Rheumatology, Department of Radiology, and Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | | | | | | | | |
Collapse
|
19
|
Dokainish H. Coronary artery calcium score by computed tomography: what does it mean? Can J Cardiol 2010; 26:381. [PMID: 20847966 DOI: 10.1016/s0828-282x(10)70420-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
|