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Bellinge JW, Chan DC, Pang J, Francis RJ, Page MM, Watts GF, Schultz CJ. Plasma lipoprotein(a) is associated with calcification activity of the thoracic aorta and aortic valve in statin naïve individuals with diabetes mellitus. Eur J Clin Invest 2024; 54:e14167. [PMID: 38265272 DOI: 10.1111/eci.14167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/25/2024]
Affiliation(s)
- Jamie W Bellinge
- Medical School, University of Western Australia, Perth, Western Australia, Australia
- Department of Nuclear Medicine, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Dick C Chan
- Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - Jing Pang
- Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - Roslyn J Francis
- Medical School, University of Western Australia, Perth, Western Australia, Australia
- Department of Nuclear Medicine, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Michael M Page
- Medical School, University of Western Australia, Perth, Western Australia, Australia
- Department of Clinical Biochemistry, Western Diagnostic Pathology, Perth, Australia
| | - Gerald F Watts
- Medical School, University of Western Australia, Perth, Western Australia, Australia
- Cardiometabolic Service, Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Carl J Schultz
- Medical School, University of Western Australia, Perth, Western Australia, Australia
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
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2
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Lan NSR, Harty J, Liow S, Taheri-Chivers J, Ihdayhid AR, Hillis GS, Schultz CJ. Cardiovascular risk factors in younger versus older patients with acute coronary syndrome. Coron Artery Dis 2024; 35:252-254. [PMID: 38411183 DOI: 10.1097/mca.0000000000001341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Affiliation(s)
- Nick S R Lan
- Department of Cardiology, Royal Perth Hospital
- Medical School, University of Western Australia
- Department of Cardiology, Fiona Stanley Hospital
- Harry Perkins Institute of Medical Research
| | | | - Shaun Liow
- Medical School, University of Western Australia
| | | | - Abdul Rahman Ihdayhid
- Department of Cardiology, Fiona Stanley Hospital
- Harry Perkins Institute of Medical Research
- Medical School, Curtin University, Perth, Australia
| | - Graham S Hillis
- Department of Cardiology, Royal Perth Hospital
- Medical School, University of Western Australia
| | - Carl J Schultz
- Department of Cardiology, Royal Perth Hospital
- Medical School, University of Western Australia
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3
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Schultz CJ, Dalgaard F, Bellinge JW, Murray K, Sim M, Connolly E, Blekkenhorst LC, Bondonno CP, Lewis JR, Gislason GH, Tjønneland A, Overvad K, Hodgson JM, Bondonno NP. Dietary Vitamin K 1 Intake and Incident Aortic Valve Stenosis. Arterioscler Thromb Vasc Biol 2024; 44:513-521. [PMID: 38152887 DOI: 10.1161/atvbaha.123.320271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 11/30/2023] [Indexed: 12/29/2023]
Abstract
BACKGROUND Leaflet calcification contributes to the development and progression of aortic valve stenosis. Vitamin K activates inhibitors of vascular calcification and may modulate inflammation and skeletal bone loss. Therefore, we aimed to determine whether higher dietary intakes of vitamin K1 are associated with a lower incidence of aortic stenosis. METHODS In the Danish Diet, Cancer and Health study, participants aged 50 to 64 years completed a 192-item food frequency questionnaire at baseline, from which habitual intakes of vitamin K1 were estimated. Participants were prospectively followed using linkage to nationwide registers to determine incident aortic valve stenosis (primary outcome) and aortic stenosis with subsequent complications (aortic valve replacement, heart failure, or cardiovascular disease-related mortality; secondary outcome). RESULTS In 55 545 participants who were followed for a maximum of 21.5 years, 1085 were diagnosed with aortic stenosis and 615 were identified as having subsequent complications. Participants in the highest quintile of vitamin K1 intake had a 23% lower risk of aortic stenosis (hazard ratio, 0.77 [95% CI, 0.63-0.94]) and a 27% lower risk of aortic stenosis with subsequent complications (hazard ratio, 0.73 [95% CI, 0.56-0.95]), compared with participants in the lowest quintile after adjusting for demographics and cardiovascular risk factors. CONCLUSIONS In this study, a high intake of vitamin K1-rich foods was associated with a lower incidence of aortic stenosis and a lower risk of aortic stenosis with subsequent complications.
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Affiliation(s)
- Carl J Schultz
- School of Medicine (C.J.S., J.W.B., M.S., C.P.B., J.R.L., J.M.H.), University of Western Australia
- Department of Cardiology, Royal Perth Hospital, Australia (C.J.S., J.W.B.)
| | - Frederik Dalgaard
- Department of Cardiology, Herlev & Gentofte University Hospital, Copenhagen, Denmark (F.D., G.H.G.)
| | - Jamie W Bellinge
- School of Medicine (C.J.S., J.W.B., M.S., C.P.B., J.R.L., J.M.H.), University of Western Australia
- Department of Cardiology, Royal Perth Hospital, Australia (C.J.S., J.W.B.)
| | - Kevin Murray
- Department of Cardiology, Royal Perth Hospital, Australia (C.J.S., J.W.B.)
| | - Marc Sim
- School of Medicine (C.J.S., J.W.B., M.S., C.P.B., J.R.L., J.M.H.), University of Western Australia
- Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia (M.S., E.C., L.C.B., C.P.B., J.R.L., J.M.H., N.P.B.)
| | - Emma Connolly
- Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia (M.S., E.C., L.C.B., C.P.B., J.R.L., J.M.H., N.P.B.)
| | - Lauren C Blekkenhorst
- Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia (M.S., E.C., L.C.B., C.P.B., J.R.L., J.M.H., N.P.B.)
| | - Catherine P Bondonno
- School of Medicine (C.J.S., J.W.B., M.S., C.P.B., J.R.L., J.M.H.), University of Western Australia
- Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia (M.S., E.C., L.C.B., C.P.B., J.R.L., J.M.H., N.P.B.)
| | - Joshua R Lewis
- School of Medicine (C.J.S., J.W.B., M.S., C.P.B., J.R.L., J.M.H.), University of Western Australia
- Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia (M.S., E.C., L.C.B., C.P.B., J.R.L., J.M.H., N.P.B.)
- Centre for Kidney Research, Children's Hospital at Westmead, School of Public Health, Sydney Medical School, The University of Sydney, NSW, Australia (J.R.L.)
| | - Gunnar H Gislason
- Department of Cardiology, Herlev & Gentofte University Hospital, Copenhagen, Denmark (F.D., G.H.G.)
- National Institute of Public Health, University of Southern Denmark, Odense (G.H.G.)
- Danish Heart Foundation, Copenhagen, Denmark (G.H.G.)
| | - Anne Tjønneland
- Danish Cancer Institute, Copenhagen, Denmark (A.T., N.P.B.)
- Department of Public Health, University of Copenhagen, Denmark (A.T.)
| | - Kim Overvad
- Department of Public Health, Aarhus University, Denmark (K.O.)
| | - Jonathan M Hodgson
- School of Medicine (C.J.S., J.W.B., M.S., C.P.B., J.R.L., J.M.H.), University of Western Australia
- Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia (M.S., E.C., L.C.B., C.P.B., J.R.L., J.M.H., N.P.B.)
| | - Nicola P Bondonno
- Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Perth, Australia (M.S., E.C., L.C.B., C.P.B., J.R.L., J.M.H., N.P.B.)
- Danish Cancer Institute, Copenhagen, Denmark (A.T., N.P.B.)
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4
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Daamen LA, Westerhoff JM, Christodouleas JP, Orrling K, Eggert D, Choudhury A, Fuller CD, van der Heide U, Sahgal A, Schultz CJ, Schytte T, Tersteeg R, Tree A, Hall WA, Verkooijen H. Evolution of the MOMENTUM Study for Evidence-Based Implementation of MR-Guided Radiotherapy Using the 1.5 Tesla MR-Linac. Int J Radiat Oncol Biol Phys 2023; 117:e576-e577. [PMID: 37785753 DOI: 10.1016/j.ijrobp.2023.06.1912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The international prospective 'Multiple Outcome Evaluation of Radiation Therapy Using the MR-Linac' (MOMENTUM) study (NCT04075305) was initiated in 2019 by seven hospitals and industry partner precision radiation medicine company, with the aim to facilitate evidence-based implementation of magnetic resonance (MR) guided radiotherapy using the 1.5 Tesla (T) MR-linear accelerator (Linac). Over the last four years, MOMENTUM has expanded to other institutions and the design and organization of MOMENTUM have evolved. Herein, we give an overview of the current status of MOMENTUM and study innovations that have been implemented to accelerate development and assessment of the 1.5T MR-Linac. MATERIALS/METHODS We summarized operational outputs of MOMENTUM, including site participation, data aggregation, academic output, and study design elements that have been introduced since 2019. RESULTS As of January 2023, 17 sites have joined and 10 sites are actively enrolling patients in MOMENTUM. The MOMENTUM infrastructure, which consists of prospectively collected clinical and technical patient data and patient reported outcomes, is increasingly being used for predicate studies, technical development studies, safety and early clinical evaluation, and hypothesis testing studies according to R-IDEAL. Over 3500 patients who received treatment for 33 different tumor sites have provided informed consent for using their data for scientific research and product development. The technical database currently includes over 190.000 items, including approximately 98,000 MRI scans and 33,800 dose plans. A total of 38 data requests have been accepted (2019: n = 1; 2020: n = 5; 2021: n = 10; 2022: n = 22), including technical studies focused on algorithmic development. The MOMENTUM infrastructure is also hosting prospective clinical studies, including the randomized HERMES trial (NCT04595019) and prospective UNITED study (NCT04726397). Recently, the 'Trials within Cohorts' (TwiCs) design has been implemented, which is well suited to perform pragmatic randomized trials. MOMENTUM has partnered with Kaiku Health, an electronic patient-reported outcomes application, to facilitate collection of patient reported toxicity. CONCLUSION Over the past four years, the MOMENTUM study has evolved into a unique platform, whose infrastructure is increasingly being used by clinicians, researchers, physicists and industry. Continuous efforts are being made to encourage the participation of new sites and the development of innovative tools to facilitate the conduct of well-designed trials that are expected to transform daily clinical practice.
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Affiliation(s)
- L A Daamen
- Department of Radiation Oncology, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | | | | | - D Eggert
- Elekta Inc., Atlanta, GA, United States
| | - A Choudhury
- Department of Clinical Oncology, The Christie NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, UK, Manchester, United Kingdom
| | - C D Fuller
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - U van der Heide
- Department of Radiation Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - A Sahgal
- Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, ON, Canada
| | | | - T Schytte
- Department of Oncology, Odense University Hospital, Odense, Denmark
| | - R Tersteeg
- University Medical Center Utrecht, Utrecht 3584CX, The Netherlands
| | - A Tree
- Radiotherapy and Imaging Division, Institute of Cancer Research, London, United Kingdom
| | - W A Hall
- Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI
| | - H Verkooijen
- University Medical Center Utrecht, Utrecht, The Netherlands
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5
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Courtney WA, Schultz CJ, Hillis GS. Aortic valve calcification and outcomes in severe aortic stenosis. Heart 2023; 109:1426-1428. [PMID: 37290901 DOI: 10.1136/heartjnl-2023-322771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/10/2023] Open
Affiliation(s)
- William A Courtney
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
- School of Medicine, University of Western Australia, Perth, Western Australia, Australia
| | - Carl J Schultz
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
- School of Medicine, University of Western Australia, Perth, Western Australia, Australia
| | - Graham S Hillis
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
- School of Medicine, University of Western Australia, Perth, Western Australia, Australia
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6
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Kelly C, Lan NSR, Phan J, Hng C, Matthews A, Rankin JM, Schultz CJ, Hillis GS, Reid CM, Dwivedi G, Figtree GA, Ihdayhid AR. Characteristics and Outcomes of Young Patients With ST-Elevation Myocardial Infarction Without Standard Modifiable Risk Factors. Am J Cardiol 2023; 202:81-89. [PMID: 37423175 DOI: 10.1016/j.amjcard.2023.06.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/19/2023] [Accepted: 06/11/2023] [Indexed: 07/11/2023]
Abstract
Patients with ST-elevation myocardial infarction (STEMI) with no standard modifiable risk factors (SMuRFs: hypertension, diabetes mellitus, hypercholesterolemia, and smoking) have worse short-term mortality than those with SMuRFs. Whether this association extends to younger patients is unclear. A retrospective cohort study was performed of patients aged 18 to 45 years with STEMI at 3 Australian hospitals between 2010 and 2020. Nonatherosclerotic causes of STEMI were excluded. The primary outcome was 30-day all-cause mortality. Secondary outcomes included 1 and 2-year mortality. Cox proportional hazards analysis was used. Of 597 patients, the median age was 42 (interquartile range 38 to 44) years, 85.1% were men and 8.4% were SMuRF-less. Patients who are SMuRF-less were >2 times more likely to have cardiac arrest (28.0% vs 12.6%, p = 0.003); require vasopressors (16.0% vs 6.8%, p = 0.018), mechanical support (10.0% vs 2.3%, p = 0.046), or intensive care admission (20.0% vs 5.7%, p <0.001); and have higher rate of left anterior descending artery infarcts than those with SMuRFs (62.0% vs 47.2%, p = 0.045). No significant differences in thrombolysis or percutaneous intervention were observed. Guideline-directed medical therapy at discharge was high (>90%), and not different in the SMuRF-less. 30-day mortality was almost fivefold higher in the SMuRF-less (hazard ratio 4.70, 95% confidence interval 1.66 to 13.35, p = 0.004), remaining significant at 1 and 2 years. In conclusion, young patients who are SMuRF-less have a higher 30-day mortality after STEMI than their counterparts with SMuRFs. This may be partially mediated by higher rates of cardiac arrest and left anterior descending artery territory events. These findings further highlight the need for improved prevention and management of SMuRF-less STEMI.
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Affiliation(s)
- Ciaran Kelly
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia
| | - Nick S R Lan
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia; Department of Cardiology, Royal Perth Hospital, Perth, Australia; Medical School, The University of Western Australia, Perth, Australia; Harry Perkins Institute of Medical Research, Perth, Australia
| | - Jane Phan
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia
| | - Cherng Hng
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia
| | - Amy Matthews
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia
| | - James M Rankin
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia
| | - Carl J Schultz
- Department of Cardiology, Royal Perth Hospital, Perth, Australia; Medical School, The University of Western Australia, Perth, Australia
| | - Graham S Hillis
- Department of Cardiology, Royal Perth Hospital, Perth, Australia; Medical School, The University of Western Australia, Perth, Australia
| | | | - Girish Dwivedi
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia; Medical School, The University of Western Australia, Perth, Australia; Harry Perkins Institute of Medical Research, Perth, Australia
| | - Gemma A Figtree
- Faculty of Medicine and Health, University of Sydney, Sydney, Australia; Kolling Institute of Medical Research, Royal North Shore Hospital, Sydney, Australia
| | - Abdul Rahman Ihdayhid
- Department of Cardiology, Fiona Stanley Hospital, Perth, Australia; Harry Perkins Institute of Medical Research, Perth, Australia; Curtin Medical School, Curtin University, Perth, Australia.
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7
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Ward NC, Ying Q, Chan DC, Pang J, Mori TA, Schultz CJ, Dwivedi G, Francis RJ, Watts GF. Improved arterial inflammation with high dose omega-3 fatty acids in patients with elevated lipoprotein(a): Selective effect of eicosapentaenoic acid? J Clin Lipidol 2023; 17:694-699. [PMID: 37598001 DOI: 10.1016/j.jacl.2023.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/29/2023] [Accepted: 08/07/2023] [Indexed: 08/21/2023]
Abstract
Elevated lipoprotein(a) [Lp(a)] is a causal risk factor for atherosclerotic cardiovascular disease. However, there are no approved and effective treatments for lowering Lp(a) and the associated cardiovascular risks. Omega-3 fatty acids (ω-3FAs), primarily eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), have both triglyceride-lowering and anti-inflammatory properties. This pilot study investigated the effect of high dose ω-3FAs (3.6 g/day) on arterial inflammation in 12 patients with elevated Lp(a) (> 0.5 g/L) and stable coronary artery disease (CAD) receiving cholesterol-lowering treatment. Arterial inflammation was determined using 18F-fluorodexoyglucose positron emission tomography/computed tomography before and after 12-weeks intervention. ω-3FAs significantly lowered plasma concentrations of triglycerides (-17%, p < 0.01), Lp(a) (-5%, p < 0.01) as well as aortic maximum standardized uptake value (SUVmax) (-4%, p < 0.05). The reduction in SUVmax was significantly inversely associated with average on-treatment EPA (r = -0.750, p < 0.01), but not DHA and triglyceride, concentrations. In conclusion, high dose ω-3FAs decrease arterial inflammation in patients with elevated Lp(a) and stable CAD, which may involve a direct arterial effect of EPA.
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Affiliation(s)
- Natalie C Ward
- Dobney Hypertension Centre, Medical School, University of Western Australia, Perth, Australia
| | - Qidi Ying
- Medical School, University of Western Australia, Perth, Australia
| | - Dick C Chan
- Medical School, University of Western Australia, Perth, Australia
| | - Jing Pang
- Medical School, University of Western Australia, Perth, Australia
| | - Trevor A Mori
- Medical School, University of Western Australia, Perth, Australia
| | - Carl J Schultz
- Medical School, University of Western Australia, Perth, Australia; Department of Cardiology, Royal Perth Hospital, Perth, Australia
| | - Girish Dwivedi
- Medical School, University of Western Australia, Perth, Australia; Department of Cardiology, Fiona Stanley Hospital, Perth, Australia; Department of Advanced Clinical and Translational Cardiovascular Imaging, Harry Perkins Institute of Medical Research, Perth, Australia
| | - Roslyn J Francis
- Medical School, University of Western Australia, Perth, Australia; Department of Nuclear Medicine, Sir Charles Gardner Hospital, Perth, Australia
| | - Gerald F Watts
- Medical School, University of Western Australia, Perth, Australia; Cardiometabolic Clinic, Department of Cardiology, Royal Perth Hospital, Perth, Australia.
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8
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Abdelshafy M, Serruys PW, Tsai TY, Revaiah PC, Garg S, Aben JP, Schultz CJ, Abdelghani M, Tonino PAL, Miyazaki Y, Rutten MCM, Cox M, Sahyoun C, Teng J, Tateishi H, Abdel-Wahab M, Piazza N, Pighi M, Modolo R, van Mourik M, Wykrzykowska J, de Winter RJ, Lemos PA, de Brito FS, Kawashima H, Søndergaard L, Rosseel L, Wang R, Gao C, Tao L, Rück A, Kim WK, van Royen N, Terkelsen CJ, Nissen H, Adam M, Rudolph TK, Wienemann H, Torii R, Josef Neuman F, Schoechlin S, Chen M, Elkoumy A, Elzomor H, Amat-Santos IJ, Mylotte D, Soliman O, Onuma Y. Quantitative aortography for assessment of aortic regurgitation in the era of percutaneous aortic valve replacement. Front Cardiovasc Med 2023; 10:1161779. [PMID: 37529710 PMCID: PMC10389707 DOI: 10.3389/fcvm.2023.1161779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/24/2023] [Indexed: 08/03/2023] Open
Abstract
Paravalvular leak (PVL) is a shortcoming that can erode the clinical benefits of transcatheter valve replacement (TAVR) and therefore a readily applicable method (aortography) to quantitate PVL objectively and accurately in the interventional suite is appealing to all operators. The ratio between the areas of the time-density curves in the aorta and left ventricular outflow tract (LVOT-AR) defines the regurgitation fraction (RF). This technique has been validated in a mock circulation; a single injection in diastole was further tested in porcine and ovine models. In the clinical setting, LVOT-AR was compared with trans-thoracic and trans-oesophageal echocardiography and cardiac magnetic resonance imaging. LVOT-AR > 17% discriminates mild from moderate aortic regurgitation on echocardiography and confers a poor prognosis in multiple registries, and justifies balloon post-dilatation. The LVOT-AR differentiates the individual performances of many old and novel devices and is being used in ongoing randomized trials and registries.
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Affiliation(s)
- Mahmoud Abdelshafy
- Department of Cardiology, CORRIB Research Centre for Advanced Imaging and Core Laboratory, National University of Ireland, Galway (NUIG), Galway, Ireland
- Department of Cardiology, Al-Azhar University, Cairo, Egypt
| | - Patrick W. Serruys
- Department of Cardiology, CORRIB Research Centre for Advanced Imaging and Core Laboratory, National University of Ireland, Galway (NUIG), Galway, Ireland
- NHLI, Imperial College London, London, United Kingdom
| | - Tsung-Ying Tsai
- Department of Cardiology, CORRIB Research Centre for Advanced Imaging and Core Laboratory, National University of Ireland, Galway (NUIG), Galway, Ireland
| | - Pruthvi Chenniganahosahalli Revaiah
- Department of Cardiology, CORRIB Research Centre for Advanced Imaging and Core Laboratory, National University of Ireland, Galway (NUIG), Galway, Ireland
| | - Scot Garg
- Department of Cardiology, Royal Blackburn Hospital, Blackburn, United Kingdom
| | | | - Carl J. Schultz
- Department of Cardiology, Royal Perth Hospital, Perth, WA, Australia
- Medical School, University of Western Australia, Perth, WA, Australia
| | - Mohammad Abdelghani
- Department of Cardiology, Al-Azhar University, Cairo, Egypt
- Department of Cardiology, Amsterdam UMC, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam, Netherlands
| | - Pim A. L. Tonino
- Department of Cardiology, Catharina Hospital, Eindhoven, Netherlands
| | - Yosuke Miyazaki
- Division of Cardiology, Department of Medicine and Clinical Science, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Marcel C. M. Rutten
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, Netherlands
| | | | | | - Justin Teng
- Department of Cardiology, Royal Perth Hospital, Perth, WA, Australia
| | - Hiroki Tateishi
- Department of Cardiology, Shibata Hospital, Yamaguchi, Japan
- Division of Cardiology, Department of Clinical Science and Medicine, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Mohamed Abdel-Wahab
- Department of Internal Medicine/Cardiology, Heart Center Leipzig at the University of Leipzig, Leipzig, Germany
| | - Nicolo Piazza
- Department of Medicine, Division of Cardiology, McGill University, Montreal, QC, Canada
| | - Michele Pighi
- Division of Cardiology, Department of Medicine, University of Verona, Verona, Italy
| | | | - Martijn van Mourik
- Department of Cardiology, Amsterdam UMC, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam, Netherlands
| | | | - Robbert J. de Winter
- Department of Cardiology, Amsterdam UMC, Amsterdam Cardiovascular Sciences, University of Amsterdam, Amsterdam, Netherlands
| | - Pedro A. Lemos
- Heart Institute (InCor), University of São Paulo Medical School (USP), São Paulo, Brazil
| | - Fábio S. de Brito
- Heart Institute (InCor), University of São Paulo Medical School (USP), São Paulo, Brazil
| | - Hideyuki Kawashima
- Department of Cardiology, Teikyo University School of Medicine, Tokyo, Japan
| | - Lars Søndergaard
- The Heart Centre, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Liesbeth Rosseel
- Department of Cardiology, Algemeen Stedelijk Ziekenhuis, Aalst, Belgium
| | - Rutao Wang
- Department of Cardiology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Chao Gao
- Department of Cardiology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Ling Tao
- Department of Cardiology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Andreas Rück
- Department of Cardiology, Karolinska Institute, Stockholm, Sweden
| | - Won-Keun Kim
- Department of Cardiology, Kerckhoff Heart Centre, Bad Nauheim, Germany
| | - Niels van Royen
- Department of Cardiology, Radboud University Medical Center, Nijmegen, Netherlands
| | | | - Henrik Nissen
- Department of Cardiology, Odense University Hospital, Odense, Denmark
| | - Matti Adam
- Department of Cardiology, Faculty of Medicine, Heart Center, University of Cologne, Cologne, Germany
| | - Tanja K. Rudolph
- Department for General and Interventional Cardiology/Angiology, Heart- und Diabetes Center NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany
| | - Hendrik Wienemann
- Department of Cardiology, Faculty of Medicine, Heart Center, University of Cologne, Cologne, Germany
| | - Ryo Torii
- Department of Mechanical Engineering, University College London, London, United Kingdom
| | - Franz Josef Neuman
- Division of Cardiology and Angiology II, University Heart Centre Freiburg—Bad Krozingen, Bad Krozingen, Germany
| | - Simon Schoechlin
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Mao Chen
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Ahmed Elkoumy
- Department of Cardiology, CORRIB Research Centre for Advanced Imaging and Core Laboratory, National University of Ireland, Galway (NUIG), Galway, Ireland
- Islamic Center of Cardiology and Cardiac Surgery, Al-Azhar University, Cairo, Egypt
| | - Hesham Elzomor
- Department of Cardiology, CORRIB Research Centre for Advanced Imaging and Core Laboratory, National University of Ireland, Galway (NUIG), Galway, Ireland
- Islamic Center of Cardiology and Cardiac Surgery, Al-Azhar University, Cairo, Egypt
| | | | - Darren Mylotte
- Department of Cardiology, CORRIB Research Centre for Advanced Imaging and Core Laboratory, National University of Ireland, Galway (NUIG), Galway, Ireland
| | - Osama Soliman
- Department of Cardiology, CORRIB Research Centre for Advanced Imaging and Core Laboratory, National University of Ireland, Galway (NUIG), Galway, Ireland
| | - Yoshinobu Onuma
- Department of Cardiology, CORRIB Research Centre for Advanced Imaging and Core Laboratory, National University of Ireland, Galway (NUIG), Galway, Ireland
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9
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Anokye R, Jackson B, Dimmock J, Dickson JM, Kennedy MA, Schultz CJ, Blekkenhorst LC, Hodgson JM, Stanley M, Lewis JR. Impact of vascular screening interventions on perceived threat, efficacy beliefs and behavioural intentions: a systematic narrative review. Health Promot Int 2023; 38:7189931. [PMID: 37279474 PMCID: PMC10243777 DOI: 10.1093/heapro/daad040] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
Health-related behaviours contribute to the global burden of cardiovascular disease (CVD). Cardiovascular imaging can be used to screen asymptomatic individuals for increased risk of CVD to enable earlier interventions to promote health-related behaviours to prevent or reduce CVD risk. Some theories of behaviour and behaviour change assume that engagement in a given behaviour is a function of individual threat appraisals, beliefs regarding the performance of behaviour, self-efficacy for performing the desired behaviour and/or dispositions to act (e.g. behavioural intentions). To date, little is known about the impact of cardiovascular imaging interventions on these constructs. This article summarises evidence related to perceived threat, efficacy beliefs, and behavioural intentions after CVD screening. We identified 10 studies (2 RCTs and 8 non-randomised studies, n = 2498) through a combination of screening citations from published systematic reviews and meta-analyses and searching electronic databases. Of these, 7 measured behavioural intentions and perceived susceptibility and 3 measured efficacy beliefs. Findings showed largely encouraging effects of screening interventions on bolstering self-efficacy beliefs and strengthening behavioural intentions. Imaging results that suggest the presence of coronary or carotid artery disease also increased perceived susceptibility to CVD. However, the review also identified some gaps in the literature, such as a lack of guiding theoretical frameworks and assessments of critical determinants of health-related behaviours. By carefully considering the key issues highlighted in this review, we can make significant strides towards reducing CVD risks and improving population health.
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Affiliation(s)
- Reindolf Anokye
- Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Royal Perth Hospital Research Foundation, Perth, Western Australia, Australia
| | - Ben Jackson
- School of Human Sciences (Exercise and Sport Science), University of Western Australia, Perth, Australia
- Telethon Kids Institute, Perth, Western Australia
| | - James Dimmock
- Department of Psychology, College of Healthcare Sciences, James Cook University, Queensland, Australia
- School of Human Sciences (Exercise and Sport Science), University of Western Australia, Perth, Australia
| | - Joanne M Dickson
- Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Royal Perth Hospital Research Foundation, Perth, Western Australia, Australia
- School of Arts and Humanities (Psychology Discipline), Edith Cowan University, Joondalup, Western Australia, Australia
- Department of Psychological Science, University of Liverpool, Liverpool L69 7ZA, UK
| | - Mary A Kennedy
- Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Royal Perth Hospital Research Foundation, Perth, Western Australia, Australia
| | - Carl J Schultz
- Medical School, The University of Western Australia, Perth, Australia
- Department of Cardiology, Royal Perth Hospital, Perth,Western Australia, Australia
| | - Lauren C Blekkenhorst
- Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Royal Perth Hospital Research Foundation, Perth, Western Australia, Australia
- Medical School, The University of Western Australia, Perth, Australia
| | - Jonathan M Hodgson
- Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Royal Perth Hospital Research Foundation, Perth, Western Australia, Australia
- Medical School, The University of Western Australia, Perth, Australia
| | - Mandy Stanley
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Joshua R Lewis
- Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Royal Perth Hospital Research Foundation, Perth, Western Australia, Australia
- Medical School, The University of Western Australia, Perth, Australia
- Centre for Kidney Research, Children's Hospital at Westmead, School of Public Health, Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
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10
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Serruys PW, Kotoku N, Nørgaard BL, Garg S, Nieman K, Dweck MR, Bax JJ, Knuuti J, Narula J, Perera D, Taylor CA, Leipsic JA, Nicol ED, Piazza N, Schultz CJ, Kitagawa K, Bruyne BD, Collet C, Tanaka K, Mushtaq S, Belmonte M, Dudek D, Zlahoda-Huzior A, Tu S, Wijns W, Sharif F, Budoff MJ, Mey JD, Andreini D, Onuma Y. Computed tomographic angiography in coronary artery disease. EUROINTERVENTION 2023; 18:e1307-e1327. [PMID: 37025086 PMCID: PMC10071125 DOI: 10.4244/eij-d-22-00776] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 11/14/2022] [Indexed: 04/05/2023]
Abstract
Coronary computed tomographic angiography (CCTA) is becoming the first-line investigation for establishing the presence of coronary artery disease and, with fractional flow reserve (FFRCT), its haemodynamic significance. In patients without significant epicardial obstruction, its role is either to rule out atherosclerosis or to detect subclinical plaque that should be monitored for plaque progression/regression following prevention therapy and provide risk classification. Ischaemic non-obstructive coronary arteries are also expected to be assessed by non-invasive imaging, including CCTA. In patients with significant epicardial obstruction, CCTA can assist in planning revascularisation by determining the disease complexity, vessel size, lesion length and tissue composition of the atherosclerotic plaque, as well as the best fluoroscopic viewing angle; it may also help in selecting adjunctive percutaneous devices (e.g., rotational atherectomy) and in determining the best landing zone for stents or bypass grafts.
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Affiliation(s)
| | - Nozomi Kotoku
- Department of Cardiology, University of Galway, Galway, Ireland
| | - Bjarne L Nørgaard
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Scot Garg
- Department of Cardiology, Royal Blackburn Hospital, Blackburn, UK
| | - Koen Nieman
- Department of Radiology and Division of Cardiovascular Medicine, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Marc R Dweck
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Jeroen J Bax
- Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands
- Heart Center, Turku University Hospital and University of Turku, Turku, Finland
| | - Juhani Knuuti
- Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands
- Heart Center, Turku University Hospital and University of Turku, Turku, Finland
| | | | - Divaka Perera
- School of Cardiovascular Medicine and Sciences, British Heart Foundation Centre of Research Excellence, King's College London, London, UK
| | | | - Jonathon A Leipsic
- Department of Medicine and Radiology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Edward D Nicol
- Royal Brompton Hospital, London, UK
- School of Biomedical Engineering and Imaging Sciences, King's College London, London, UK
| | - Nicolo Piazza
- Department of Medicine, Division of Cardiology, McGill University Health Center, Montreal, Quebec, Canada
| | - Carl J Schultz
- Division of Internal Medicine, Medical School, University of Western Australia, Perth, WA, Australia
- Department of Cardiology, Royal Perth Hospital, Perth, WA, Australia
| | - Kakuya Kitagawa
- Department of Advanced Diagnostic Imaging, Mie University Graduate School of Medicine, Mie, Japan
| | - Bernard De Bruyne
- Cardiovascular Center Aalst, OLV-Clinic, Aalst, Belgium
- Department of Cardiology, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Carlos Collet
- Cardiovascular Center Aalst, OLV-Clinic, Aalst, Belgium
| | - Kaoru Tanaka
- Department of Radiology, Universitair Ziekenhuis Brussel, VUB, Brussels, Belgium
| | | | | | - Darius Dudek
- Szpital Uniwersytecki w Krakowie, Krakow, Poland
| | - Adriana Zlahoda-Huzior
- Digital Innovations & Robotics Hub, Krakow, Poland
- Department of Measurement and Electronics, AGH University of Science and Technology, Krakow, Poland
| | - Shengxian Tu
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - William Wijns
- Department of Cardiology, University of Galway, Galway, Ireland
- The Lambe Institute for Translational Medicine, The Smart Sensors Laboratory and CURAM, Galway, University of Galway, Galway, Ireland
| | - Faisal Sharif
- Department of Cardiology, University of Galway, Galway, Ireland
| | - Matthew J Budoff
- Division of Cardiology, Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Johan de Mey
- Department of Radiology, Universitair Ziekenhuis Brussel, VUB, Brussels, Belgium
| | - Daniele Andreini
- Division of Cardiology and Cardiac Imaging, IRCCS Galeazzi Sant'Ambrogio, Milan, Italy
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
| | - Yoshinobu Onuma
- Department of Cardiology, University of Galway, Galway, Ireland
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11
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Sankhesara DM, Lan NSR, Gilfillan P, Zounis E, Rajgopal S, Chan DC, Pang J, Hillis GS, Watts GF, Schultz CJ. Lipoprotein(a) is associated with thrombus burden in culprit arteries of younger patients with ST-segment elevation myocardial infarction. Cardiology 2023:000529600. [PMID: 36758526 DOI: 10.1159/000529600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 02/03/2023] [Indexed: 02/11/2023]
Abstract
Background Lipoprotein(a) [Lp(a)] is a risk factor for cardiovascular disease. The burden of thrombus in ST-segment elevation myocardial infarction (STEMI) has implications on treatment and outcomes. However, the association between Lp(a) and atherothrombosis in STEMI remains unclear. Objectives Determine the association between Lp(a) and culprit artery thrombus burden in younger patients with STEMI. Methods Single-centre study of 83 patients aged <65 years with STEMI between 2016-2018 who underwent percutaneous coronary intervention and measurement of Lp(a); those receiving thrombolytic therapy were excluded. Thrombus burden in the culprit artery was determined angiographically using the Thrombolysis in Myocardial Infarction score and classified as absent-to-small, moderate, or large. Elevated Lp(a) was defined as plasma mass concentration >30 mg/dL. Multivariate analysis was performed adjusting for cardiovascular risk factors. Results The mean age was 48.08.4 years and 78.3% were male. Thirteen (16%), 9 (11%) and 61 (73%) patients had small, moderate, or large thrombus burden, respectively, and 34 (41%) had elevated Lp(a). Elevated Lp(a) was associated with greater thrombus burden compared to normal Lp(a) (large burden 85% versus 65%; P=0.024). Elevated Lp(a) was associated with moderate or large thrombus in univariate [OR 10.70 (95% CI 1.32-86.82); P=0.026] and multivariate analysis [OR 10.33 (95% CI 1.19-89.52); P=0.034]. Lp(a) was not associated with culprit artery or stenosis location according to culprit artery. Conclusions Elevated Lp(a) is associated with greater thrombus burden in younger patients with STEMI. The finding of this observational study accords with the thrombotic and anti-fibrinolytic properties of Lp(a). A causal relationship requires verification.
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12
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Bellinge JW, Francis RJ, Lee SC, Vickery A, Macdonald W, Gan SK, Chew GT, Phillips M, Lewis JR, Watts GF, Schultz CJ. The effect of Vitamin-K 1 and Colchicine on Vascular Calcification Activity in subjects with Diabetes Mellitus (ViKCoVaC): A double-blind 2x2 factorial randomized controlled trial. J Nucl Cardiol 2022; 29:1855-1866. [PMID: 33825140 DOI: 10.1007/s12350-021-02589-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 02/03/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND There is currently no treatment for attenuating progression of arterial calcification. 18F-sodium fluoride positron emission tomography (18F-NaF PET) locates regions of calcification activity. We tested whether vitamin-K1 or colchicine affected arterial calcification activity. METHODS 154 patients with diabetes mellitus and coronary calcification, as detected using computed tomography (CT), were randomized to one of four treatment groups (placebo/placebo, vitamin-K1 [10 mg/day]/placebo, colchicine [0.5 mg/day]/placebo, vitamin-K1 [10 mg/day]/ colchicine [0.5 mg/day]) in a double-blind, placebo-controlled 2x2 factorial trial of three months duration. Change in coronary calcification activity was estimated as a change in coronary maximum tissue-to-background ratio (TBRmax) on 18F-NaF PET. RESULTS 149 subjects completed follow-up (vitamin-K1: placebo = 73:76 and colchicine: placebo = 73:76). Neither vitamin-K1 nor colchicine had a statistically significant effect on the coronary TBRmax compared with placebo (mean difference for treatment groups 0·00 ± 0·16 and 0·01 ± 0·17, respectively, p > 0.05). There were no serious adverse effects reported with colchicine or vitamin-K1. CONCLUSIONS In patients with type 2 diabetes, neither vitamin-K1 nor colchicine significantly decreases coronary calcification activity, as estimated by 18F-NaF PET, over a period of 3 months. CLINICAL TRIAL REGISTRATION ACTRN12616000024448.
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Affiliation(s)
- Jamie W Bellinge
- School of Medicine, Faculty of Health and Biomedical Science, University of Western Australia, Royal Perth Hospital Campus, M570, Po Box X2213, Perth, Western Australia, Australia
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Roslyn J Francis
- School of Medicine, Faculty of Health and Biomedical Science, University of Western Australia, Royal Perth Hospital Campus, M570, Po Box X2213, Perth, Western Australia, Australia
- Department of Nuclear Medicine, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Sing Ching Lee
- School of Medicine, Faculty of Health and Biomedical Science, University of Western Australia, Royal Perth Hospital Campus, M570, Po Box X2213, Perth, Western Australia, Australia
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Alistair Vickery
- School of Medicine, Faculty of Health and Biomedical Science, University of Western Australia, Royal Perth Hospital Campus, M570, Po Box X2213, Perth, Western Australia, Australia
- Black Swan Health, Perth, Western Australia, Australia
| | - William Macdonald
- Department of Nuclear Medicine, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Seng Khee Gan
- School of Medicine, Faculty of Health and Biomedical Science, University of Western Australia, Royal Perth Hospital Campus, M570, Po Box X2213, Perth, Western Australia, Australia
- Department of Endocrinology and Diabetes, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Gerard T Chew
- School of Medicine, Faculty of Health and Biomedical Science, University of Western Australia, Royal Perth Hospital Campus, M570, Po Box X2213, Perth, Western Australia, Australia
- Department of Endocrinology and Diabetes, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Michael Phillips
- Harry Perkins Institute for Medical Research, and Centre for Medical Research, University of Western Australia and, Nedlands, Western Australia, Australia
| | - Joshua R Lewis
- School of Medicine, Faculty of Health and Biomedical Science, University of Western Australia, Royal Perth Hospital Campus, M570, Po Box X2213, Perth, Western Australia, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
- Centre for Kidney Research, Children's Hospital Westmead, School of Public Health, University of Sydney, Westmead, New South Wales, Australia
| | - Gerald F Watts
- School of Medicine, Faculty of Health and Biomedical Science, University of Western Australia, Royal Perth Hospital Campus, M570, Po Box X2213, Perth, Western Australia, Australia
- Cardiometabolic service, Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Carl J Schultz
- School of Medicine, Faculty of Health and Biomedical Science, University of Western Australia, Royal Perth Hospital Campus, M570, Po Box X2213, Perth, Western Australia, Australia.
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia.
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13
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Sun M, Dubé MP, Hennessy T, Schultz CJ, Barhdadi A, Rhainds D, Hillis GS, Tardif JC. Low-dose colchicine and high-sensitivity C-reactive protein after myocardial infarction: A combined analysis using individual patient data from the COLCOT and LoDoCo-MI studies. Int J Cardiol 2022; 363:20-22. [PMID: 35716932 DOI: 10.1016/j.ijcard.2022.06.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 05/10/2022] [Accepted: 06/10/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Low-dose colchicine is effective in reducing the risks of recurrent cardiovascular events following an acute myocardial infarction (MI). However, the influence of colchicine on inflammation remains inconclusive. In the current study, we conducted a combined analysis using individual patient data from the COLCOT and LoDoCo-MI trials to assess the effect of low-dose colchicine on high-sensitivity C reactive protein (hs-CRP) in patients with acute MI. METHODS We performed a combined analysis of individual patient data from two clinical trials (COLCOT, LoDoCo-MI). Paired pre-treatment and post-treatment hs-CRP (mg/L) were available in 222 patients for LoDoCo-MI and 207 patients for COLCOT (npooled = 429). We evaluated the effect of colchicine vs. placebo on post-treatment hs-CRP coded continuously and ≤ 1.0 mg/L in adjusted mixed-model multi-level regression analyses. RESULTS Colchicine was not significantly associated with post-treatment hs-CRP when it was considered as a continuous variable (beta: -0.41, P = 0.429). However, the intervention was significantly associated with increased odds of achieving post-treatment hs-CRP values ≤1.0 mg/L compared to placebo (odds ratio: 1.64, 95% confidence interval: 1.07 to 2.51, P = 0.024). CONCLUSIONS Reduction of inflammation may be a key component in the clinical efficacy of low-dose colchicine with respect to decreased risk of recurrent cardiovascular events following MI. Systematic sampling of hs-CRP before and after treatment with colchicine may be relevant.
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Affiliation(s)
- Maxine Sun
- Montreal Heart Institute, Montreal, Canada; Université de Montréal Beaulieu-Saucier Pharmacogenomics Centre, Montreal, Canada; Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Canada
| | - Marie-Pierre Dubé
- Montreal Heart Institute, Montreal, Canada; Université de Montréal Beaulieu-Saucier Pharmacogenomics Centre, Montreal, Canada; Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Canada
| | - Thomas Hennessy
- Department of Cardiology, Royal Perth Hospital, Perth, Australia and Medical School, University of Western Australia, Australia
| | - Carl J Schultz
- Department of Cardiology, Royal Perth Hospital, Perth, Australia and Medical School, University of Western Australia, Australia
| | - Amina Barhdadi
- Montreal Heart Institute, Montreal, Canada; Université de Montréal Beaulieu-Saucier Pharmacogenomics Centre, Montreal, Canada; Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Canada
| | | | - Graham S Hillis
- Department of Cardiology, Royal Perth Hospital, Perth, Australia and Medical School, University of Western Australia, Australia.
| | - Jean-Claude Tardif
- Montreal Heart Institute, Montreal, Canada; Department of Medicine, Faculty of Medicine, Université de Montréal, Montreal, Canada.
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14
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Bellinge JW, Francis RJ, Lee SC, Bondonno NP, Sim M, Lewis JR, Watts GF, Schultz CJ. The effect of vitamin K1 on arterial calcification activity in subjects with diabetes mellitus: a post hoc analysis of a double-blind, randomized, placebo-controlled trial. Am J Clin Nutr 2022; 115:45-52. [PMID: 34637494 DOI: 10.1093/ajcn/nqab306] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 09/02/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Coronary and aortic artery calcifications are generally slow to develop, and their burden predicts cardiovascular disease events. In patients with diabetes mellitus, arterial calcification is accelerated and calcification activity can be detected using 18F-sodium fluoride positron emission tomography (18F-NaF PET). OBJECTIVES We aimed to determine whether vitamin K1 supplementation inhibits arterial calcification activity in individuals with diabetes mellitus. METHODS This was a post hoc analysis of the ViKCoVaC (effect of Vitamin-K1 and Colchicine on Vascular Calcification activity in subjects with Diabetes Mellitus) double-blind randomized controlled trial conducted in Perth, Western Australia. Individuals with diabetes mellitus and established coronary calcification (coronary calcium score > 10), but without clinical coronary artery disease, underwent baseline 18F-NaF PET imaging, followed by oral vitamin K1 supplementation (10 mg/d) or placebo for 3 mo, after which 18F-NaF PET imaging was repeated. We tested whether individuals randomly assigned to vitamin K1 supplementation had reduced development of new 18F-NaF PET positive lesions within the coronary arteries and aorta. RESULTS In total, 149 individuals completed baseline and follow-up imaging studies. Vitamin K1 supplementation independently decreased the odds of developing new 18F-NaF PET positive lesions in the coronary arteries (OR: 0.35; 95% CI: 0.16, 0.78; P = 0.010), aorta (OR: 0.27; 95% CI: 0.08, 0.94; P = 0.040), and in both aortic and coronary arteries (OR: 0.28; 95% CI: 0.13, 0.63; P = 0.002). CONCLUSIONS In individuals with diabetes mellitus, supplementation with 10 mg vitamin K1/d may prevent the development of newly calcifying lesions within the aorta and the coronary arteries as detected using 18F-NaF PET. Further long-term studies are needed to test this hypothesis.This trial was registered at anzctr.org.au as ACTRN12616000024448.
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Affiliation(s)
- Jamie W Bellinge
- Division of Internal Medicine, Medical School, University of Western Australia, Perth, Western Australia, Australia.,Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Roslyn J Francis
- Division of Internal Medicine, Medical School, University of Western Australia, Perth, Western Australia, Australia.,Department of Nuclear Medicine, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Sing C Lee
- Division of Internal Medicine, Medical School, University of Western Australia, Perth, Western Australia, Australia.,Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Nicola P Bondonno
- Institute for Nutrition Research, School of Medical and Health Sciences, Edith Cowan University, Perth, Western Australia, Australia.,School of Biomedical Sciences, University of Western Australia, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Marc Sim
- Division of Internal Medicine, Medical School, University of Western Australia, Perth, Western Australia, Australia.,Institute for Nutrition Research, School of Medical and Health Sciences, Edith Cowan University, Perth, Western Australia, Australia
| | - Joshua R Lewis
- Division of Internal Medicine, Medical School, University of Western Australia, Perth, Western Australia, Australia.,Institute for Nutrition Research, School of Medical and Health Sciences, Edith Cowan University, Perth, Western Australia, Australia.,Centre for Kidney Research, Children's Hospital Westmead, School of Public Health, University of Sydney, Westmead, New South Wales, Australia
| | - Gerald F Watts
- Division of Internal Medicine, Medical School, University of Western Australia, Perth, Western Australia, Australia.,Cardiometabolic Service, Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Carl J Schultz
- Division of Internal Medicine, Medical School, University of Western Australia, Perth, Western Australia, Australia.,Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
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15
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Doyle BJ, Kelsey LJ, Majeed K, Bellinge J, Parker LP, Richards S, Schultz CJ. Low endothelial shear stress, microcalcification activity and high-risk plaque features: merging computational flow modelling, OCT and 18F-NaF PET/CT. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Endothelial shear stress (ESS) has a critical role in endothelial function. Abnormal shear stress leads to endothelial dysfunction, which contributes to arterial plaque initiation and development. Four dimensional magnetic resonance can determine shear stress in the larger arteries but cannot resolve the detail needed to calculate shear stress in the coronary arteries and thus methods such as computational fluid dynamics (CFD) are required. Additionally, a key feature of biologically active plaques is microcalcification activity, and this can be detected using 18F-sodium fluoride (18F-NaF) positron emission tomography (PET). Furthermore, using high resolution optical coherence tomography (OCT), the high-risk features plaques can be visualized and quantified. We aimed to merge these three techniques to investigate if low ESS is associated with high-risk plaque features and active microcalcifications in acute coronary syndrome.
Methods
We began by merging OCT images with CTCA images to obtain detailed 3D reconstructions of the target vessel. We then simulated blood flow and calculated the ESS, from which we extracted the area of low ESS (<0.4 Pa). We quantified plaque features using OCT and measured the maximum 18F-NaF uptake, and compared data at both the coronary segment and whole artery level (Figure 1).
Results
We investigated 20 arteries from 18 patients which we obtained 38 coronary segments according to the SCCT guidelines. We found that areas of low ESS were were significantly and positively associated with high-risk plaque features: macrophage infiltration (segment, rs=0.33, p=0.043; artery, rs=0.46, p=0.041) and presence of cholesterol crystals (segment, rs=0.45, p=0.005; artery, rs=0.58, p=0.007). Vessel segments with thin-capped fibroatheroma had greater area of low ESS (20 vs 4%). The uptake of 18F-NaF was positively associated with the area of low ESS (segment, rs=0.52, p=0.001; artery, rs=0.64, p=0.002). We found that there were typically more plaque features found in regions of low ESS (Table 1).
Conclusion
Here we provide the first data associating low ESS with both high-risk plaque features and active microcalcifications in patients with acute coronary syndrome. Although our sample size is small, these data are encouraging and could lead to better understanding of how best to deem a plaque “high risk”.
Funding Acknowledgement
Type of funding sources: Public hospital(s). Main funding source(s): Royal Perth Hospital Medical Research Foundation Figure 1Table 1
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Affiliation(s)
- B J Doyle
- The University of Western Australia, Centre for Medical Research, Perth, Australia
| | - L J Kelsey
- The University of Western Australia, Centre for Medical Research, Perth, Australia
| | - K Majeed
- Royal Perth Hospital, Perth, Australia
| | | | - L P Parker
- The University of Western Australia, Centre for Medical Research, Perth, Australia
| | - S Richards
- The University of Western Australia, Centre for Medical Research, Perth, Australia
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16
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Bellinge JW, Schultz CJ. Optimizing arterial 18F-sodium fluoride positron emission tomography analysis. J Nucl Cardiol 2021; 28:1887-1890. [PMID: 31873832 DOI: 10.1007/s12350-019-01992-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 11/30/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Jamie W Bellinge
- School of Medicine, University of Western Australia, Perth, WA, Australia.
- Department of Cardiology, Royal Perth Hospital, 197 Wellington St, Perth, WA, 6000, Australia.
| | - Carl J Schultz
- School of Medicine, University of Western Australia, Perth, WA, Australia
- Department of Cardiology, Royal Perth Hospital, 197 Wellington St, Perth, WA, 6000, Australia
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17
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Kelsey LJ, Bellinge JW, Majeed K, Parker LP, Richards S, Schultz CJ, Doyle BJ. Low Endothelial Shear Stress Is Associated With High-Risk Coronary Plaque Features and Microcalcification Activity. JACC Cardiovasc Imaging 2021; 14:2262-2264. [PMID: 34274284 DOI: 10.1016/j.jcmg.2021.06.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/01/2021] [Accepted: 06/17/2021] [Indexed: 11/30/2022]
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18
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Balaji A, Kelsey LJ, Majeed K, Schultz CJ, Doyle BJ. Coronary artery segmentation from intravascular optical coherence tomography using deep capsules. Artif Intell Med 2021; 116:102072. [PMID: 34020750 DOI: 10.1016/j.artmed.2021.102072] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 04/06/2021] [Accepted: 04/07/2021] [Indexed: 12/20/2022]
Abstract
The segmentation and analysis of coronary arteries from intravascular optical coherence tomography (IVOCT) is an important aspect of diagnosing and managing coronary artery disease. Current image processing methods are hindered by the time needed to generate expert-labelled datasets and the potential for bias during the analysis. Therefore, automated, robust, unbiased and timely geometry extraction from IVOCT, using image processing, would be beneficial to clinicians. With clinical application in mind, we aim to develop a model with a small memory footprint that is fast at inference time without sacrificing segmentation quality. Using a large IVOCT dataset of 12,011 expert-labelled images from 22 patients, we construct a new deep learning method based on capsules which automatically produces lumen segmentations. Our dataset contains images with both blood and light artefacts (22.8 %), as well as metallic (23.1 %) and bioresorbable stents (2.5 %). We split the dataset into a training (70 %), validation (20 %) and test (10 %) set and rigorously investigate design variations with respect to upsampling regimes and input selection. We show that our developments lead to a model, DeepCap, that is on par with state-of-the-art machine learning methods in terms of segmentation quality and robustness, while using as little as 12 % of the parameters. This enables DeepCap to have per image inference times up to 70 % faster on GPU and up to 95 % faster on CPU compared to other state-of-the-art models. DeepCap is a robust automated segmentation tool that can aid clinicians to extract unbiased geometrical data from IVOCT.
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Affiliation(s)
- Arjun Balaji
- Vascular Engineering Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands and Centre for Medical Research, The University of Western Australia, Perth, Australia
| | - Lachlan J Kelsey
- Vascular Engineering Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands and Centre for Medical Research, The University of Western Australia, Perth, Australia; School of Engineering, The University of Western Australia, Perth, Australia
| | - Kamran Majeed
- Department of Cardiology, Royal Perth Hospital, Perth, Australia; School of Medicine, The University of Western Australia, Perth, Australia; University of Ottawa Heart Institute, Ottawa, Ontario, Canada
| | - Carl J Schultz
- Department of Cardiology, Royal Perth Hospital, Perth, Australia; School of Medicine, The University of Western Australia, Perth, Australia
| | - Barry J Doyle
- Vascular Engineering Laboratory, Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands and Centre for Medical Research, The University of Western Australia, Perth, Australia; School of Engineering, The University of Western Australia, Perth, Australia; Australian Research Council Centre for Personalised Therapeutics Technologies, Australia; British Heart Foundation Centre for Cardiovascular Science, The University of Edinburgh, UK.
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19
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Abstract
PURPOSE OF REVIEW Diabetes mellitus is no longer considered a cardiovascular disease (CVD) risk equivalent, but the optimal methods of risk stratification are a matter of debate. The coronary calcium score (CCS) is a measure of the burden of atherosclerosis and is widely used for CVD risk stratification in the general population. We review recently published data to describe the role of the CCS in people with diabetes mellitus. RECENT FINDINGS People with diabetes mellitus have 10-year event rates for CVD and CVD mortality that are considered high, at a much lower level of CCS than the general population. Different categories of CCS are pertinent to men and women with diabetes mellitus. CCS may be particularly useful in clinical settings when CVD risk is known to be increased but difficult to quantify, for example peri-menopausal women, young persons with diabetes, type 1 diabetic individuals and others. With modern techniques, the radiation dose of a CSS has fallen to levels wherein screening and surveillance could be considered. SUMMARY The CCS is able to quantify CVD risk in people with diabetes mellitus when there is clinical uncertainty and identifies those with very high event rates. Future research should aim to identify effective risk reduction strategies in this important group.
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Affiliation(s)
- Jamie W Bellinge
- School of Medicine, Faculty of Health and Biomedical Science, University of Western Australia
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Sing Ching Lee
- School of Medicine, Faculty of Health and Biomedical Science, University of Western Australia
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Carl J Schultz
- School of Medicine, Faculty of Health and Biomedical Science, University of Western Australia
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
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20
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Palmer CR, Blekkenhorst LC, Lewis JR, Ward NC, Schultz CJ, Hodgson JM, Croft KD, Sim M. Quantifying dietary vitamin K and its link to cardiovascular health: a narrative review. Food Funct 2021; 11:2826-2837. [PMID: 32211680 DOI: 10.1039/c9fo02321f] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Cardiovascular disease is the leading cause of death and disability worldwide. Recent work suggests a link between vitamin K insufficiency and deficiency with vascular calcification, a marker of advanced atherosclerosis. Vitamin K refers to a group of fat-soluble vitamins important for blood coagulation, reducing inflammation, regulating blood calcium metabolism, as well as bone metabolism, all of which may play a role in promoting cardiovascular health. Presently, there is a lack of a comprehensive vitamin K database on individual foods, which are required to accurately calculate vitamin K1 and K2 intake for examination in epidemiological studies. This has likely contributed to ambiguity regarding the recommended daily intake of vitamin K, including whether vitamin K1 and K2 may have separate, partly overlapping functions. This review will discuss the presence of: (i) vitamin K1 and K2 in the diet; (ii) the methods of quantitating vitamin K compounds in foods; and (iii) provide an overview of the evidence for the cardiovascular health benefits of vitamin K in observational and clinical trials.
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Affiliation(s)
- Claire R Palmer
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia and School of Health and Medical Sciences, Edith Cowan University, Perth, Western Australia, Australia.
| | - Lauren C Blekkenhorst
- School of Health and Medical Sciences, Edith Cowan University, Perth, Western Australia, Australia. and School of Medicine, Faculty of Health and Medical Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Joshua R Lewis
- School of Health and Medical Sciences, Edith Cowan University, Perth, Western Australia, Australia. and School of Medicine, Faculty of Health and Medical Sciences, The University of Western Australia, Perth, Western Australia, Australia and Centre for Kidney Research, Children's Hospital at Westmead, School of Public Health, Sydney Medical School, The University of Sydney, Sydney, New South Wales, Australia
| | - Natalie C Ward
- School of Medicine, Faculty of Health and Medical Sciences, The University of Western Australia, Perth, Western Australia, Australia and School of Public Health & Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia
| | - Carl J Schultz
- School of Medicine, Faculty of Health and Medical Sciences, The University of Western Australia, Perth, Western Australia, Australia and Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Jonathan M Hodgson
- School of Health and Medical Sciences, Edith Cowan University, Perth, Western Australia, Australia. and School of Medicine, Faculty of Health and Medical Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Kevin D Croft
- School of Biomedical Sciences, The University of Western Australia, Perth, Western Australia, Australia
| | - Marc Sim
- School of Health and Medical Sciences, Edith Cowan University, Perth, Western Australia, Australia. and School of Medicine, Faculty of Health and Medical Sciences, The University of Western Australia, Perth, Western Australia, Australia
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21
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Barnes C, Fatovich DM, Macdonald SPJ, Alcock RF, Spiro JR, Briffa TG, Schultz CJ, Hillis GS. Single high-sensitivity troponin levels to assess patients with potential acute coronary syndromes. Heart 2021; 107:721-727. [PMID: 33436490 DOI: 10.1136/heartjnl-2020-317997] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 11/27/2020] [Accepted: 11/30/2020] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE We tested the hypothesis that patients with a potential acute coronary syndrome (ACS) and very low levels of high-sensitivity cardiac troponin I can be efficiently and safely discharged from the emergency department after a single troponin measurement. METHODS This prospective cohort study recruited 2255 consecutive patients aged ≥18 years presenting to the Emergency Department, Royal Perth Hospital, Western Australia, with chest pain without high-risk features but requiring the exclusion of ACS. Patients were managed using a guideline-recommended pathway or our novel Single Troponin Accelerated Triage (STAT) pathway. The primary outcome was the percentage of patients discharged in <3 hours. Secondary outcomes included the duration of observation and death or acute myocardial infarction in the next 30 days. RESULTS The study enrolled 1131 patients to the standard cohort and 1124 to the STAT cohort. Thirty-eight per cent of the standard cohort were discharged directly from emergency department compared with 63% of the STAT cohort (p<0.001). The median duration of observation was 4.3 (IQR 3.3-7.1) hours in the standard cohort and 3.6 (2.6-5.4) hours in the STAT cohort (p<0.001), with 21% and 38% discharged in <3 hours, respectively (p<0.001). No patients discharged directly from the emergency department died or suffered an acute myocardial infarction within 30 days in either cohort. CONCLUSIONS Among low-risk patients with a potential ACS, a pathway which incorporates early discharge based on a single very low level of high-sensitivity cardiac troponin increases the proportion of patients discharged directly from the emergency department, reduces length of stay and is safe. TRIAL REGISTRATION NUMBER ACTRN12618000797279.
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Affiliation(s)
- Cara Barnes
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Daniel M Fatovich
- Emergency Medicine, Royal Perth Hospital, Perth, Western Australia, Australia.,Medical School, The University of Western Australia, Perth, Western Australia, Australia.,Centre for Clinical Research in Emergency Medicine, Harry Perkins Institute of Medical Research, Perth, Western Australia, Australia
| | - Stephen P J Macdonald
- Emergency Medicine, Royal Perth Hospital, Perth, Western Australia, Australia.,Medical School, The University of Western Australia, Perth, Western Australia, Australia.,Centre for Clinical Research in Emergency Medicine, Harry Perkins Institute of Medical Research, Perth, Western Australia, Australia
| | - Richard F Alcock
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Jon R Spiro
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia.,Medical School, The University of Western Australia, Perth, Western Australia, Australia
| | - Tom G Briffa
- School of Population and Global Health, The University of Western Australia, Crawley, Western Australia, Australia
| | - Carl J Schultz
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia.,Medical School, The University of Western Australia, Perth, Western Australia, Australia
| | - Graham S Hillis
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia .,Medical School, The University of Western Australia, Perth, Western Australia, Australia
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22
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Sanfilippo FM, Hillis GS, Rankin JM, Latchem D, Schultz CJ, Yong J, Li IW, Briffa TG. Invasive Coronary Angiography after Chest Pain Presentations to Emergency Departments. Int J Environ Res Public Health 2020; 17:ijerph17249502. [PMID: 33352982 PMCID: PMC7766965 DOI: 10.3390/ijerph17249502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/11/2020] [Accepted: 12/14/2020] [Indexed: 01/06/2023]
Abstract
We investigated patients presenting to emergency departments (EDs) with chest pain to identify factors that influence the use of invasive coronary angiography (ICA). Using linked ED, hospitalisations, death and cardiac biomarker data, we identified people aged 20 years and over who presented with chest pain to tertiary public hospital EDs in Western Australia from 1 January 2016 to 31 March 2017 (ED chest pain cohort). We report patient characteristics, ED discharge diagnosis, pathways to ICA, ICA within 90 days, troponin test results, and gender differences. Associations were examined with the Pearson Chi-squared test and multivariate logistic regression. There were 16,974 people in the ED chest pain cohort, with a mean age of 55.6 years and 50.7% males, accounting for 20,131 ED presentations. Acute coronary syndrome was the ED discharge diagnosis in 10.4% of presentations. ED pathways were: discharged home (57.5%); hospitalisation (41.7%); interhospital transfer (0.4%); and died in ED (0.03%)/inpatients (0.3%). There were 1546 (9.1%) ICAs performed within 90 days of the first ED chest pain visit, of which 59 visits (3.8%) had no troponin tests and 565 visits (36.6%) had normal troponin. ICAs were performed in more men than women (12.3% vs. 6.1%, p < 0.0001; adjusted OR 1.89, 95% CI 1.65, 2.18), and mostly within 7 days. Equal numbers of males and females present with chest pain to tertiary hospital EDs, but men are twice as likely to get ICA. Over one-third of ICAs occur in those with normal troponin levels, indicating that further investigation is required to determine risk profile, outcomes and cost effectiveness.
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Affiliation(s)
- Frank M. Sanfilippo
- School of Population and Global Health, The University of Western Australia, Perth 6009, Australia; (I.W.L.); (T.G.B.)
- Correspondence:
| | - Graham S. Hillis
- Cardiology Department, Royal Perth Hospital, Perth 6000, Australia; (G.S.H.); (C.J.S.)
- Medical School, The University of Western Australia, Perth 6009, Australia
| | - Jamie M. Rankin
- Cardiology Department, Fiona Stanley Hospital, Murdoch 6150, Australia;
| | - Donald Latchem
- Department of Cardiovascular Medicine, Sir Charles Gairdner Hospital, Nedlands 6009, Australia;
| | - Carl J. Schultz
- Cardiology Department, Royal Perth Hospital, Perth 6000, Australia; (G.S.H.); (C.J.S.)
- Medical School, The University of Western Australia, Perth 6009, Australia
| | - Jongsay Yong
- Melbourne Institute of Applied Economic and Social Research, University of Melbourne, Melbourne 3010, Australia;
| | - Ian W. Li
- School of Population and Global Health, The University of Western Australia, Perth 6009, Australia; (I.W.L.); (T.G.B.)
| | - Tom G. Briffa
- School of Population and Global Health, The University of Western Australia, Perth 6009, Australia; (I.W.L.); (T.G.B.)
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23
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Majeed K, Bellinge JW, Butcher SC, Alcock R, Spiro J, Playford D, Hillis GS, Newby DE, Mori TA, Francis R, Schultz CJ. Coronary 18F-sodium fluoride PET detects high-risk plaque features on optical coherence tomography and CT-angiography in patients with acute coronary syndrome. Atherosclerosis 2020; 319:142-148. [PMID: 33358367 DOI: 10.1016/j.atherosclerosis.2020.12.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 11/08/2020] [Accepted: 12/11/2020] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND AIMS 18F-Sodium Fluoride Positron Emission Tomography (18F-NaF PET) non-invasively detects micro-calcification activity, the earliest stage of atherosclerotic arterial calcification. We studied the association between coronary 18F-NaF uptake and high-risk plaque features on intra-coronary optical coherence tomography (OCT) and CT-angiography (CTCA) and the potential application to patient-level risk stratification. METHODS Sixty-two prospectively recruited patients with acute coronary syndrome (ACS) underwent multi-vessel OCT, 18F-NaF PET and CTCA. The maximum tissue to background ratio (TBRmax = standardised uptake value (SUV)max/SUVbloodpool) was measured in each coronary segment on 18F-NaF PET scans. High-risk plaque features on OCT and CTCA were compared in matched coronary segments. The number of patients testing positive (>2SD above the normal range) for micro-calcification activity was determined. RESULTS In 62 patients (age, mean ± standard deviation (SD) = 61 ± 9 years, 85% male) the coronary segments with elevated 18F-NaF uptake had higher lipid arc (LA) (median [25th-75th centile]: 74° [35°-117°] versus 48° [15°-83°], p=0.021), higher prevalence of macrophages [n(%): 37 (62%) versus 89 (39%), p=0.008] and lower plaque free wall (PFW) (50° [7°-110°] versus 94° [34°-180°], p=0.027) on OCT, and a higher total plaque burden (p=0.011) and higher dense calcified plaque burden (p= 0.001) on CTCA, when compared with 18F-NaF negative segments. Patients grouped by increasing number of coronary lesions positive for microcalcification activity (0,1, ≥2) showed decreasing plaque free wall, increasing calcification and increasing macrophages on OCT (respectively p=0.008, p < 0.001 and p=0.028). CONCLUSIONS 18F-NaF uptake is associated with high-risk plaque features on OCT and CTCA in a per-segment and per-patient analysis in subjects hospitalized for ACS.
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Affiliation(s)
- Kamran Majeed
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia; Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - Jamie W Bellinge
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia; Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - Steele C Butcher
- School of Medicine, University of Notre Dame, Fremantle, Western Australia, Australia
| | - Richard Alcock
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Jon Spiro
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - David Playford
- School of Medicine, University of Notre Dame, Fremantle, Western Australia, Australia
| | - Graham S Hillis
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia; Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - David E Newby
- Centre for Cardiovascular Science, Clinical Research Imaging Centre, Royal Infirmary of Edinburgh, University of Edinburgh, Edinburgh, UK
| | - Trevor A Mori
- Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - Roslyn Francis
- Medical School, University of Western Australia, Perth, Western Australia, Australia; Nuclear Medicine Department, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia
| | - Carl J Schultz
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia; Medical School, University of Western Australia, Perth, Western Australia, Australia.
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24
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Bellinge JW, Francis RJ, Lee SC, Phillips M, Rajwani A, Lewis JR, Watts GF, Schultz CJ. 18F-Sodium Fluoride Positron Emission Tomography Activity Predicts the Development of New Coronary Artery Calcifications. Arterioscler Thromb Vasc Biol 2020; 41:534-541. [PMID: 33267660 DOI: 10.1161/atvbaha.120.315364] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
OBJECTIVE The coronary calcium score (CCS) predicts cardiovascular disease risk in individuals with diabetes, and rate of progression of CCS is an additional and incremental marker of risk. 18F-sodium fluoride positron emission tomography (18F-NaF PET) detects early and active calcifications within the vasculature. We aimed to ascertain the relationship between 18F-NaF PET activity and CCS progression in patients with diabetes. Approach and Results: We identified individuals between 50 and 80 years with diabetes and no history of clinical coronary artery disease. Those with a CCS ≥10 were invited to undergo 18F-NaF PET scanning and then repeat CCS >2 years later. 18F-NaF PET and CCS analysis were performed on a per-coronary and a per-patient level. We compared the proportion of CCS progressors in 18F-NaF PET-positive versus 18F-NaF PET-negative coronary arteries. Forty-one participants with 163 coronary arteries underwent follow-up CCS 2.8±0.5 years later. 18F-NaF PET-positive coronary arteries (n=52) were more likely to be CCS progressors, compared with negative coronary arteries (n=111; 86.5% versus 52.3%, P<0.001). Adjusting for baseline CCS, 18F-NaF PET-positive disease was an independent predictor of subsequent CCS progression (odds ratio, 2.92 [95% CI, 1.32-6.45], P=0.008). All subjects (100%, 15/15) with ≥2 18F-NaF-positive coronary arteries progressed in CCS. CONCLUSIONS In subjects with diabetes, 18F-NaF PET positivity at baseline, independently predicted the progression of calcifications within the coronary arteries 2.8 years later. These findings suggest 18F-NaF PET may be a promising technique for earlier identification of patients at higher risk of cardiovascular events.
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Affiliation(s)
- Jamie W Bellinge
- School of Medicine (J.W.B., R.J.F., S.C.L., A.R., J.R.L., G.F.W., C.J.S.), University of Western Australia, Perth.,Department of Cardiology (J.W.B., S.C.L., A.R., C.J.S.), Department of Cardiology, Royal Perth Hospital, Perth, Western Australia
| | - Roslyn J Francis
- School of Medicine (J.W.B., R.J.F., S.C.L., A.R., J.R.L., G.F.W., C.J.S.), University of Western Australia, Perth.,Department of Nuclear Medicine, Sir Charles Gairdner Hospital, Nedlands, Western Australia (R.J.F.)
| | - Sing Ching Lee
- School of Medicine (J.W.B., R.J.F., S.C.L., A.R., J.R.L., G.F.W., C.J.S.), University of Western Australia, Perth.,Department of Cardiology (J.W.B., S.C.L., A.R., C.J.S.), Department of Cardiology, Royal Perth Hospital, Perth, Western Australia
| | - Michael Phillips
- Harry Perkins Institute for Medical Research (M.P.), University of Western Australia, Perth.,Centre for Medical Research (M.P.), University of Western Australia, Perth
| | - Adil Rajwani
- School of Medicine (J.W.B., R.J.F., S.C.L., A.R., J.R.L., G.F.W., C.J.S.), University of Western Australia, Perth.,Department of Cardiology (J.W.B., S.C.L., A.R., C.J.S.), Department of Cardiology, Royal Perth Hospital, Perth, Western Australia
| | - Joshua R Lewis
- School of Medicine (J.W.B., R.J.F., S.C.L., A.R., J.R.L., G.F.W., C.J.S.), University of Western Australia, Perth.,School of Medical and Health Sciences, Edith Cowan University, Perth, Australia (J.R.L.).,Centre for Kidney Research, Children's Hospital at Westmead, School of Public Health, Sydney Medical School, The University of Sydney, NSW, Australia (J.R.L.)
| | - Gerald F Watts
- School of Medicine (J.W.B., R.J.F., S.C.L., A.R., J.R.L., G.F.W., C.J.S.), University of Western Australia, Perth.,Cardiometabolic Service (G.F.W.), Department of Cardiology, Royal Perth Hospital, Perth, Western Australia
| | - Carl J Schultz
- School of Medicine (J.W.B., R.J.F., S.C.L., A.R., J.R.L., G.F.W., C.J.S.), University of Western Australia, Perth.,Department of Cardiology (J.W.B., S.C.L., A.R., C.J.S.), Department of Cardiology, Royal Perth Hospital, Perth, Western Australia
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25
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Lan NSR, Chan DC, Pang J, Fegan PG, Yeap BB, Rankin JM, Schultz CJ, Watts GF, Bell DA. Lipoprotein(a) in Patients With Type 2 Diabetes and Premature Coronary Artery Disease in the Coronary Care Unit. Heart Lung Circ 2020; 30:734-740. [PMID: 33191140 DOI: 10.1016/j.hlc.2020.09.932] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 08/25/2020] [Accepted: 09/17/2020] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Lipoprotein(a) [Lp(a)] and diabetes are independently associated with premature coronary artery disease (pCAD). However, there is an inverse relationship between Lp(a) concentration and type 2 diabetes (T2D) risk. We examine whether Lp(a) distribution in patients with pCAD differs between those with or without T2D, and whether elevated Lp(a) is associated with pCAD in patients with T2D. METHODS Lp(a) concentration was measured in consecutive acute coronary syndrome (ACS) patients in two coronary care units (study one: ACS with or without diabetes, study two: ACS and diabetes). Elevated Lp(a) mass concentration was defined as ≥0.5 g/L and pCAD where CAD was diagnosed age <60 years. The association between elevated Lp(a) and pCAD was assessed using logistic regression. RESULTS Of 449 patients, 233 (51.9%) had pCAD and 278 (61.9%) had T2D. In patients with pCAD, those with T2D had a significantly lower median Lp(a) concentration (0.13 g/L versus 0.27 g/L, p=0.004). In patients with T2D, elevated Lp(a) was significantly associated with pCAD (OR 2.419, 95% CI 1.513-3.867, p<0.001). After adjusting for gender, smoking, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol and triglycerides, elevated Lp(a) remained significantly associated with pCAD (OR 2.895, 95% CI 1.427-5.876, p=0.003) in patients with T2D. CONCLUSIONS In coronary care patients with pCAD, patients with T2D had lower Lp(a) concentrations than those without T2D. Despite this, elevated Lp(a) remained predictive of pCAD in patients with T2D. Measurement of Lp(a) should be considered in younger adults with T2D to identify who may benefit from earlier preventative therapies to reduce pCAD burden.
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Affiliation(s)
- Nick S R Lan
- Department of Endocrinology and Diabetes, Fiona Stanley Hospital, Perth, WA, Australia; Department of Cardiology, Fiona Stanley Hospital, Perth, WA, Australia.
| | - Dick C Chan
- Medical School, The University of Western Australia, Perth, WA, Australia
| | - Jing Pang
- Medical School, The University of Western Australia, Perth, WA, Australia
| | - P Gerry Fegan
- Department of Endocrinology and Diabetes, Fiona Stanley Hospital, Perth, WA, Australia; Medical School, Curtin University, Perth, WA, Australia
| | - Bu B Yeap
- Department of Endocrinology and Diabetes, Fiona Stanley Hospital, Perth, WA, Australia; Medical School, The University of Western Australia, Perth, WA, Australia
| | - James M Rankin
- Department of Cardiology, Fiona Stanley Hospital, Perth, WA, Australia
| | - Carl J Schultz
- Medical School, The University of Western Australia, Perth, WA, Australia; Departments of Internal Medicine and Cardiology, Royal Perth Hospital, Perth, WA, Australia
| | - Gerald F Watts
- Medical School, The University of Western Australia, Perth, WA, Australia; Departments of Internal Medicine and Cardiology, Royal Perth Hospital, Perth, WA, Australia
| | - Damon A Bell
- Medical School, The University of Western Australia, Perth, WA, Australia; Departments of Internal Medicine and Cardiology, Royal Perth Hospital, Perth, WA, Australia; Department of Clinical Biochemistry, PathWest Laboratory Medicine WA, Royal Perth and Fiona Stanley Hospitals, Perth, WA, Australia; Department of Biochemistry, Clinipath Pathology, Perth, WA, Australia
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26
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Affiliation(s)
- Kamran Majeed
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia; Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - Graham S Hillis
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia; Medical School, University of Western Australia, Perth, Western Australia, Australia
| | - Carl J Schultz
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia; Medical School, University of Western Australia, Perth, Western Australia, Australia.
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27
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Van Malderen SCH, Schultz CJ, Jordaens L. Case report: Synergetic effect of ischaemia and increased vagal tone inducing ventricular fibrillation in a patient with Brugada syndrome. Eur Heart J Case Rep 2020; 4:1-5. [PMID: 32974459 PMCID: PMC7501915 DOI: 10.1093/ehjcr/ytaa202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/15/2019] [Accepted: 06/11/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Brugada syndrome (BS) is a hereditary channelopathy associated with syncope, malignant ventricular arrhythmia, and sudden cardiac death. Right ventricular ischaemia and BS have similar underlying substrates precipitating ventricular tachycardia or fibrillation (VF). CASE SUMMARY A 72-year-old woman with BS and a stenosis on the proximal right coronary artery received several subsequent implantable cardioverter-defibrillator shocks due to VF during an episode of extreme nausea with vomiting. DISCUSSION This case report emphasizes on the synergetic effect of mild ischaemia and increased vagal tone on the substrate responsible for BS to create pathophysiological changes precipitating VF.
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Affiliation(s)
- Sophie C H Van Malderen
- Department of Cardiology, Erasmus MC, Dr. Molewaterplein 40. 3015 GD, Rotterdam, The Netherlands
- Department of Cardiology, AZ Monica, Florent Pauwelslei 1, 2100, Deurne, Belgium
| | - Carl J Schultz
- School of Medicine, University of Western Australia, Perth, Western Australia, Australia
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Luc Jordaens
- Department of Cardiology, Erasmus MC, Dr. Molewaterplein 40. 3015 GD, Rotterdam, The Netherlands
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28
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Bellinge JW, Majeed K, Carr SS, Jones J, Hong I, Francis RJ, Schultz CJ. Coronary artery 18F-NaF PET analysis with the use of an elastic motion correction software. J Nucl Cardiol 2020; 27:952-961. [PMID: 30684262 DOI: 10.1007/s12350-018-01587-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 12/14/2018] [Indexed: 11/29/2022]
Abstract
INTRODUCTION 18F-Sodium Fluoride Positron Emission Tomography (18F-NaF PET) is a novel molecular imaging modality with promise for use as a risk stratification tool in cardiovascular disease. There are limitations in the analysis of small and rapidly moving coronary arteries using traditional PET technology. We aimed to validate the use of a motion correction algorithm (eMoco) on coronary 18F-NaF PET outcome parameters. METHODS Patients admitted with an acute coronary syndrome underwent 18F-NaF PET and computed tomography coronary angiography. 18F-NaF PET data were analyzed using a diastolic reconstruction, an ungated reconstruction and the eMoco reconstruction. RESULTS Twenty patients underwent 18F-NaF PET imaging and 17 patients had at least one positive lesion that could be used to compare PET reconstruction datasets. eMoco improved noise (the coefficient of variation of the blood pool radiotracer activity) compared to the diastolic dataset (0.09 [0.07 to 0.12] vs 0.14[0.11 to 0.17], p < .001) and marginally improved coronary lesion maximum tissue-to-background ratios compared to the ungated dataset (1.33 [1.05 to 1.48]vs 1.29 [1.04 to 1.40], p = .011). CONCLUSION In this pilot dataset, the eMoco reconstruction algorithm for motion correction appears to have potential in improving coronary analysis of 18F-NaF PET by reducing noise and increasing maximum counts. Further testing in a larger patient dataset is warranted.
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Affiliation(s)
- Jamie W Bellinge
- Cardiology Department, Royal Perth Hospital, 197 Wellington St, Perth, WA, 6000, Australia.
- School of Medicine, University of Western Australia, Crawley, WA, Australia.
| | - Kamran Majeed
- Cardiology Department, Royal Perth Hospital, 197 Wellington St, Perth, WA, 6000, Australia
- School of Medicine, University of Western Australia, Crawley, WA, Australia
| | - Stuart S Carr
- School of Medicine, University of Western Australia, Crawley, WA, Australia
| | - Judson Jones
- Molecular Imaging, Siemens Medical Solutions USA, Inc., Knoxville, TN, USA
| | - Inki Hong
- Molecular Imaging, Siemens Medical Solutions USA, Inc., Knoxville, TN, USA
| | - Roslyn J Francis
- School of Medicine, University of Western Australia, Crawley, WA, Australia
- Nuclear Medicine Department, Sir Charles Gairdner Hospital, Nedlands, WA, Australia
| | - Carl J Schultz
- Cardiology Department, Royal Perth Hospital, 197 Wellington St, Perth, WA, 6000, Australia
- School of Medicine, University of Western Australia, Crawley, WA, Australia
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29
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Sim M, Lewis JR, Prince RL, Levinger I, Brennan-Speranza TC, Palmer C, Bondonno CP, Bondonno NP, Devine A, Ward NC, Byrnes E, Schultz CJ, Woodman R, Croft K, Hodgson JM, Blekkenhorst LC. The effects of vitamin K-rich green leafy vegetables on bone metabolism: A 4-week randomised controlled trial in middle-aged and older individuals. Bone Rep 2020; 12:100274. [PMID: 32455149 PMCID: PMC7235933 DOI: 10.1016/j.bonr.2020.100274] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 04/21/2020] [Indexed: 01/20/2023] Open
Abstract
Background High vegetable intake is associated with beneficial effects on bone. However, the mechanisms remain uncertain. Green leafy vegetables are a rich source of vitamin K1, which is known to have large effects on osteoblasts and osteocalcin (OC) metabolism. Objective To examine the effects of consumption of two to three extra serves of green leafy vegetables daily on bone metabolism. Methods Thirty individuals (mean age 61.8 ± 9.9 years, 67% male) completed three experimental phases in a randomised controlled crossover design, each lasting four weeks, with a washout period of four weeks between phases (clinical trial registration: ACTRN12615000194561). The three experimental phases were: (i) increased dietary vitamin K1 by consuming green leafy vegetables (H-K; ~200 g/d containing 164.3 [99.5-384.7] μg/d of vitamin K1); (ii) low vitamin K1 by consuming vitamin K1-poor vegetables (L-K; ~200 g/d containing 9.4 [7.7-11.6] μg/d of vitamin K1); and (iii) control (CON) where participants consumed an energy-matched non-vegetable control. OC forms, total OC (tOC), carboxylated OC (cOC) and undercarboxylated OC (ucOC), were measured in serum pre- and post-intervention for each experimental phase using a sandwich-electrochemiluminescence immunoassay. Results Pre-intervention tOC, ucOC and ucOC:tOC levels were similar between phases (P > .05). Following H-K, but not L-K, tOC, ucOC and ucOC:tOC levels were significantly lower compared to pre-intervention levels (P ≤ .001) and compared to CON (~14%, 31% and 19%, respectively, all P < .05), while cOC remained unchanged. Conclusions In middle-aged healthy men and women, an easily achieved increase in dietary intake of vitamin K1-rich green leafy vegetables substantially reduces serum tOC and ucOC suggesting increased entry of OC into bone matrix, where it may improve the material property of bone. In conjunction with previous epidemiological and randomised controlled trial data, these findings suggest that interventions to increase vegetable intake over extended periods should include bone end points including fracture risk.
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Key Words
- Ageing
- BMD, bone mineral density
- Bone
- CON, control
- CTX, collagen type I C-terminal cross-linked telopeptide
- FFQ, food frequency questionnaire
- GCMS, gas-chromatography mass spectrometry
- H-K, experimental phase with high vitamin K1 intake
- L-K, experimental phase with low vitamin K1 intake
- METs, metabolic equivalents
- MK, menaquinones
- Nutrition
- OC, osteocalcin
- Osteocalcin
- P1NP, N-terminal propeptide of type I collagen
- PK, phylloquinone
- RCT, randomised controlled trial
- USDA, United States Department of Agriculture
- VIABP, Vegetable intake and blood pressure study
- VKDP, vitamin K dependant proteins
- Vitamin K
- cOC, carboxylated osteocalcin
- tOC, total osteocalcin
- ucOC, undercarboxylated osteocalcin
- ucOC:tOC, fraction of undercarboxylated osteocalcin
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Affiliation(s)
- Marc Sim
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Medical School, Royal Perth Hospital Unit, The University Western Australia, Perth, WA, Australia
| | - Joshua R Lewis
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Medical School, Royal Perth Hospital Unit, The University Western Australia, Perth, WA, Australia.,Centre for Kidney Research, Children's Hospital at Westmead, School of Public Health, Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Richard L Prince
- Department of Endocrinology and Diabetes, Sir Charles Gairdner Hospital, Nedlands, WA, Australia.,Medical School, Sir Charles Gardner Unit, The University Western Australia, Perth, WA, Australia
| | - Itamar Levinger
- Institute for Health and Sport (iHeS), Victoria University, Melbourne, VIC, Australia.,Australian Institute for Musculoskeletal Science (AIMSS), University of Melbourne and Western Health, St Albans, VIC, Australia
| | - Tara C Brennan-Speranza
- Department of Physiology, Bosch Institute for Medical Research, University of Sydney, Sydney, Australia
| | - Claire Palmer
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,School of Biomedical Science, Royal Perth Hospital Unit, The University Western Australia, Perth, WA, Australia
| | - Catherine P Bondonno
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Medical School, Royal Perth Hospital Unit, The University Western Australia, Perth, WA, Australia
| | - Nicola P Bondonno
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Medical School, Royal Perth Hospital Unit, The University Western Australia, Perth, WA, Australia
| | - Amanda Devine
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Natalie C Ward
- Medical School, Royal Perth Hospital Unit, The University Western Australia, Perth, WA, Australia.,School of Public Health & Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Elizabeth Byrnes
- Department of Clinical Biochemistry, PathWest Laboratory Medicine, Queen Elizabeth II Medical Centre, Perth, Australia
| | - Carl J Schultz
- Medical School, Royal Perth Hospital Unit, The University Western Australia, Perth, WA, Australia.,Department of Cardiology, Royal Perth Hospital, WA, Australia
| | - Richard Woodman
- Flinders Centre for Epidemiology and Biostatistics, Flinders University, Adelaide, SA, Australia
| | - Kevin Croft
- School of Biomedical Science, Royal Perth Hospital Unit, The University Western Australia, Perth, WA, Australia
| | - Jonathan M Hodgson
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Medical School, Royal Perth Hospital Unit, The University Western Australia, Perth, WA, Australia
| | - Lauren C Blekkenhorst
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.,Medical School, Royal Perth Hospital Unit, The University Western Australia, Perth, WA, Australia
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30
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Pang J, Abraham A, Vargas-García C, Bates TR, Chan DC, Hooper AJ, Bell DA, Burnett JR, Schultz CJ, Watts GF. An age-matched computed tomography angiographic study of coronary atherosclerotic plaques in patients with familial hypercholesterolaemia. Atherosclerosis 2020; 298:52-57. [PMID: 32171980 DOI: 10.1016/j.atherosclerosis.2020.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/28/2020] [Accepted: 03/03/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Familial hypercholesterolaemia (FH) is characterised by a high, but variable risk of premature coronary artery disease (CAD). Cardiac computed tomography angiography (CCTA) can be employed to assess subclinical coronary atherosclerosis. We investigated the features and distribution of coronary artery plaques in asymptomatic patients with and without genetically confirmed heterozygous FH. METHODS We undertook an aged-matched case-control study of asymptomatic phenotypic FH patients with (cases, M+) and without (controls, M-) an FH-causing mutation. Coronary atherosclerosis was assessed by CCTA and calcium scoring. Coronary segments were evaluated for global and vessel-level coronary plaques and degree of stenosis. RESULTS We studied 104 cases and 104 controls (mean age 49.9 ± 10.4 years), who had a similar spectrum of non-cardiovascular risk factors. Pre-treatment plasma LDL-cholesterol was higher in the M+ than M- group (7.8 ± 2.1 vs 6.2 ± 1.2 mmol/L, p<0.001). There was a greater proportion of patients with mixed and calcified plaque, as well as a higher coronary artery calcium score and segment stenosis score (all p<0.05), in the M+ compared with the M- group. M+ patients also had a significantly higher frequency of coronary artery calcium in the left main and anterior descending and right coronary arteries (all p<0.05), but not in the left circumflex. CONCLUSIONS Among patients with phenotypic FH, those with a genetically confirmed diagnosis had a higher frequency and severity of coronary atherosclerotic plaques, and specifically more advanced calcified plaques.
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Affiliation(s)
- Jing Pang
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Arun Abraham
- Department of Diagnostic Imaging, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Cristian Vargas-García
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Timothy R Bates
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia; St John of God Midland Public and Private Hospitals, Midland, Western Australia, Australia; Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, Western Australia, Australia
| | - Dick C Chan
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Amanda J Hooper
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia; Department of Clinical Biochemistry, PathWest Laboratory Medicine WA, Royal Perth Hospital and Fiona Stanley Hospital Network, Perth, Western Australia, Australia
| | - Damon A Bell
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia; Department of Clinical Biochemistry, PathWest Laboratory Medicine WA, Royal Perth Hospital and Fiona Stanley Hospital Network, Perth, Western Australia, Australia; Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - John R Burnett
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia; Department of Clinical Biochemistry, PathWest Laboratory Medicine WA, Royal Perth Hospital and Fiona Stanley Hospital Network, Perth, Western Australia, Australia; Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Carl J Schultz
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia; Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Gerald F Watts
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia; Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia.
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31
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Ellis KL, Hooper AJ, Pang J, Chan DC, Burnett JR, Bell DA, Schultz CJ, Moses EK, Watts GF. A genetic risk score predicts coronary artery disease in familial hypercholesterolaemia: enhancing the precision of risk assessment. Clin Genet 2019; 97:257-263. [PMID: 31571196 DOI: 10.1111/cge.13648] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/31/2019] [Accepted: 09/07/2019] [Indexed: 01/31/2023]
Abstract
Familial hypercholesterolaemia (FH) is associated with increased risk of coronary artery disease (CAD); however, risk prediction and stratification remain a challenge. Genetic risk scores (GRS) may have utility in identifying FH patients at high CAD risk. The study included 811 patients attending the lipid disorders clinic at Royal Perth Hospital with mutation-positive (n = 251) and mutation-negative (n = 560) FH. Patients were genotyped for a GRS previously associated with CAD. Associations between the GRS, clinical characteristics, and CAD were assessed using regression analyses. The average age of patients was 49.6 years, and 44.1% were male. The GRS was associated with increased odds of a CAD event in mutation-positive [odds ratio (OR) = 3.3; 95% confidence interval (CI) = 1.3-8.2; P = .009] and mutation-negative FH patients (OR = 1.8; 95% CI = 1.0-3.3; P = .039) after adjusting for established predictors of CAD risk. The GRS was associated with greater subclinical atherosclerosis as assessed by coronary artery calcium score (P = .039). A high GRS was associated with CAD defined clinically and angiographically in FH patients. High GRS patients may benefit from more intensive management including lifestyle modification and aggressive lipid-lowering therapy. Further assessment of the utility of the GRS requires investigation in prospective cohorts, including its role in influencing the management of FH patients in the clinic.
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Affiliation(s)
- Katrina L Ellis
- Centre for Genetic Origins of Health and Disease, School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Centre for Genetic Origins of Health and Disease, School of Biomedical Sciences, Curtin University, Perth, Western Australia, Australia.,School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Amanda J Hooper
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Department of Clinical Biochemistry, PathWest Laboratory Medicine WA, Royal Perth Hospital and Fiona Stanley Hospital Network, Perth, Western Australia, Australia
| | - Jing Pang
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Dick C Chan
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - John R Burnett
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Department of Clinical Biochemistry, PathWest Laboratory Medicine WA, Royal Perth Hospital and Fiona Stanley Hospital Network, Perth, Western Australia, Australia.,Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Damon A Bell
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Department of Clinical Biochemistry, PathWest Laboratory Medicine WA, Royal Perth Hospital and Fiona Stanley Hospital Network, Perth, Western Australia, Australia.,Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Carl J Schultz
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Eric K Moses
- Centre for Genetic Origins of Health and Disease, School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Centre for Genetic Origins of Health and Disease, School of Biomedical Sciences, Curtin University, Perth, Western Australia, Australia
| | - Gerald F Watts
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Western Australia, Australia.,Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
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32
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Ward NC, Schultz CJ, Watts GF. What’s new on therapies for elevated lipoprotein(a). Expert Rev Clin Pharmacol 2019; 12:495-499. [DOI: 10.1080/17512433.2019.1610391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Natalie C. Ward
- School of Public Health, Faculty of Health Sciences, Curtin University, Perth, Australia
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Australia
| | - Carl J. Schultz
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Australia
- Department of Cardiology, Royal Perth Hospital, Perth, Australia
| | - Gerald F. Watts
- School of Medicine, Faculty of Health and Medical Sciences, University of Western Australia, Perth, Australia
- Lipid Disorders Clinic, Royal Perth Hospital, Perth, Australia
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33
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Bellinge JW, Francis RJ, Majeed K, Watts GF, Schultz CJ. In search of the vulnerable patient or the vulnerable plaque: 18F-sodium fluoride positron emission tomography for cardiovascular risk stratification. J Nucl Cardiol 2018; 25:1774-1783. [PMID: 29992525 DOI: 10.1007/s12350-018-1360-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 06/18/2018] [Indexed: 02/07/2023]
Abstract
Cardiovascular disease (CVD) remains a leading cause of death. Preventative therapies that reduce CVD are most effective when targeted to individuals at high risk. Current risk stratification tools have only modest prognostic capabilities, resulting in over-treatment of low-risk individuals and under-treatment of high-risk individuals. Improved methods of CVD risk stratification are required. Molecular imaging offers a novel approach to CVD risk stratification. In particular, 18F-sodium fluoride (18F-NaF) positron emission tomography (PET) has shown promise in the detection of both high-risk atherosclerotic plaque features and vascular calcification activity, which predicts future development of new vascular calcium deposits. The rate of change of coronary calcium scores, measured by serial computed tomography scans over a 2-year period, is a strong predictor of CVD risk. Vascular calcification activity, as measured with 18F-NaF PET, has the potential to provide prognostic information similar to consecutive coronary calcium scoring, with a single-time-point convenience. However, owing to the rapid motion and small size of the coronary arteries, new solutions are required to address the traditional limitations of PET imaging. Two different methods of coronary PET analysis have been independently proposed and here we compare their respective strengths, weaknesses, and the potential for clinical translation.
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Affiliation(s)
- Jamie W Bellinge
- Department of Cardiology, Royal Perth Hospital, 197 Wellington St, Perth, WA, 6000, Australia.
- School of Medicine, University of Western Australia, Perth, Australia.
| | - Roslyn J Francis
- School of Medicine, University of Western Australia, Perth, Australia
- Department of Nuclear Medicine, Sir Charles Gairdner Hospital, Perth, Australia
| | - Kamran Majeed
- Department of Cardiology, Royal Perth Hospital, 197 Wellington St, Perth, WA, 6000, Australia
- School of Medicine, University of Western Australia, Perth, Australia
| | - Gerald F Watts
- Department of Cardiology, Royal Perth Hospital, 197 Wellington St, Perth, WA, 6000, Australia
- School of Medicine, University of Western Australia, Perth, Australia
| | - Carl J Schultz
- Department of Cardiology, Royal Perth Hospital, 197 Wellington St, Perth, WA, 6000, Australia
- School of Medicine, University of Western Australia, Perth, Australia
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34
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Chieng D, Pang J, Ellis KL, Hillis GS, Watts GF, Schultz CJ. Elevated lipoprotein(a) and low-density lipoprotein cholesterol as predictors of the severity and complexity of angiographic lesions in patients with premature coronary artery disease. J Clin Lipidol 2018; 12:1019-1026. [PMID: 29703625 DOI: 10.1016/j.jacl.2018.03.090] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 03/27/2018] [Accepted: 03/29/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND Elevated lipoprotein(a) (Lp[a]) and low-density lipoprotein (LDL) cholesterol are important inheritable risk factors for premature coronary artery disease (CAD). Lp(a) mediates cardiovascular risk through prothrombotic, proinflammatory, and proatherogenic properties. The association of Lp(a) and LDL cholesterol with angiographic disease severity and complexity in patients with premature CAD has yet to be established. OBJECTIVE To investigate the relationship of Lp(a) and LDL cholesterol with the severity and complexity of coronary artery lesions using the SYNergy between percutaneous coronary intervention with TAXUS and Cardiac Surgery (SYNTAX) and Gensini scores, in patients with premature CAD. METHODS Plasma Lp(a) levels were consecutively measured by an automated latex-enhanced immunoassay in 147 patients with premature coronary events (aged <60 years). Elevated Lp(a) was defined as >0.5 g/L, and elevated LDL cholesterol as an untreated LDL cholesterol of >5.0 mmol/L (>193 mg/dL). Demographical, biochemical, and clinical data were retrospectively collected from medical records. SYNTAX and Gensini scores were independently assessed by 2 investigators. RESULTS Patients were subdivided into tertiles using SYNTAX scores. The proportion of patients with elevated Lp(a) and elevated LDL cholesterol were significantly higher in patients with higher SYNTAX and Gensini scores (P < .05). In multivariate analysis (adjusting for age, diabetes, hypertension, and previous coronary event), elevated Lp(a) and elevated LDL cholesterol remained significant, independent predictors of higher SYNTAX and Gensini scores (P < .05). Patients with both elevated Lp(a) and elevated LDL cholesterol constituted most of the patients in the highest SYNTAX tertile, while patients with nonelevated Lp(a) and nonelevated LDL cholesterol were predominantly in the lowest SYNTAX tertile (P < .05). CONCLUSION In patients with premature CAD, elevated Lp(a) and LDL cholesterol (in a range consistent with familial hypercholesterolemia) were significant, independent predictors of the severity of CAD. Both lipid disorders should be routinely screened for in younger patients presenting to the coronary care unit.
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Affiliation(s)
- David Chieng
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Jing Pang
- School of Medicine, Faculty of Health and Medical Science, University of Western Australia, Perth, Western Australia, Australia
| | - Katrina L Ellis
- School of Medicine, Faculty of Health and Medical Science, University of Western Australia, Perth, Western Australia, Australia; School of Biomedical Sciences, Faculty of Health and Medical Science, University of Western Australia, Perth, Western Australia, Australia
| | - Graham S Hillis
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Gerald F Watts
- School of Medicine, Faculty of Health and Medical Science, University of Western Australia, Perth, Western Australia, Australia; Lipid Disorders Clinic, Cardiometabolic Services, Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia
| | - Carl J Schultz
- Department of Cardiology, Royal Perth Hospital, Perth, Western Australia, Australia; School of Medicine, Faculty of Health and Medical Science, University of Western Australia, Perth, Western Australia, Australia.
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35
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Ellis KL, Pang J, Chieng D, Bell DA, Burnett JR, Schultz CJ, Hillis GS, Watts GF. Elevated lipoprotein(a) and familial hypercholesterolemia in the coronary care unit: Between Scylla and Charybdis. Clin Cardiol 2018; 41:378-384. [PMID: 29480541 DOI: 10.1002/clc.22880] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 12/21/2017] [Accepted: 12/27/2017] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Elevated lipoprotein(a) (Lp[a]) and familial hypercholesterolemia (FH) are inherited lipid disorders. Their frequencies, coexistence, and associations with premature coronary artery disease (CAD) in patients admitted to the coronary care unit (CCU) remain to be defined. HYPOTHESIS Elevated Lp(a) and FH are commonly encountered among CCU patients and independently associated with increased premature CAD risk. METHODS Plasma Lp(a) concentrations were measured in consecutive patients admitted to the CCU with an acute coronary syndrome (ACS) or prior history of CAD for 6.5 months. Elevated Lp(a) was defined as concentrations ≥0.5 g/L. Patients with LDL-C ≥ 5 mmol/L exhibited phenotypic FH. Premature CAD was diagnosed in those age < 60 years, and the relationship between this and elevated Lp(a) and FH was determined by logistic regression. RESULTS 316 patients were screened; 163 (51.6%) had premature CAD. Overall, elevated Lp(a) and FH were identified in 27.0% and 11.6% of patients, respectively. Both disorders were detected in 4.4% of individuals. Elevated Lp(a) (32.0% vs 22.2%; P = 0.019) and FH phenotype (15.5% vs 8.0%; P = 0.052) were more common with premature vs nonpremature CAD. Elevated Lp(a) alone conferred a 1.9-fold, FH alone a 3.2-fold, and the combination a 5.3-fold increased risk of premature CAD (P = 0.005). CONCLUSIONS Elevated Lp(a) and phenotypic FH were commonly encountered and more frequent with premature CAD. The combination of both disorders is especially associated with increased CAD risk. Patients admitted to the CCU with ACS or previously documented CAD should be routinely screened for elevated Lp(a) and FH.
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Affiliation(s)
- Katrina L Ellis
- School of Medicine, University of Western Australia, Perth, Australia.,School of Biomedical Sciences, University of Western Australia, Perth, Australia
| | - Jing Pang
- School of Medicine, University of Western Australia, Perth, Australia
| | - David Chieng
- Department of Cardiology, Royal Perth Hospital, Perth, Australia
| | - Damon A Bell
- School of Medicine, University of Western Australia, Perth, Australia.,Department of Cardiology, Royal Perth Hospital, Perth, Australia
| | - John R Burnett
- School of Medicine, University of Western Australia, Perth, Australia.,Department of Clinical Biochemistry, PathWest Laboratory Medicine WA, Royal Perth Hospital and Fiona Stanley Hospital Network, Perth, Australia
| | - Carl J Schultz
- School of Medicine, University of Western Australia, Perth, Australia.,Department of Cardiology, Royal Perth Hospital, Perth, Australia
| | - Graham S Hillis
- School of Medicine, University of Western Australia, Perth, Australia.,Department of Cardiology, Royal Perth Hospital, Perth, Australia
| | - Gerald F Watts
- School of Medicine, University of Western Australia, Perth, Australia.,Department of Cardiology, Royal Perth Hospital, Perth, Australia
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36
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Ellis KL, Pang J, Schultz CJ, Watts GF. New data on familial hypercholesterolaemia and acute coronary syndromes: The promise of PCSK9 monoclonal antibodies in the light of recent clinical trials. Eur J Prev Cardiol 2017; 24:1200-1205. [DOI: 10.1177/2047487317708890] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Katrina L Ellis
- School of Medicine, University of Western Australia, Australia
| | - Jing Pang
- School of Medicine, University of Western Australia, Australia
| | - Carl J Schultz
- School of Medicine, University of Western Australia, Australia
- Department of Cardiology, Royal Perth Hospital, Australia
| | - Gerald F Watts
- School of Medicine, University of Western Australia, Australia
- Lipid Disorders Clinic, Royal Perth Hospital, Australia
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Nguyen HS, Milbach N, Hurrell SL, Cochran E, Connelly J, Bovi JA, Schultz CJ, Mueller WM, Rand SD, Schmainda KM, LaViolette PS. Progressing Bevacizumab-Induced Diffusion Restriction Is Associated with Coagulative Necrosis Surrounded by Viable Tumor and Decreased Overall Survival in Patients with Recurrent Glioblastoma. AJNR Am J Neuroradiol 2016; 37:2201-2208. [PMID: 27492073 DOI: 10.3174/ajnr.a4898] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 06/23/2016] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND PURPOSE Patients with recurrent glioblastoma often exhibit regions of diffusion restriction following the initiation of bevacizumab therapy. Studies suggest that these regions represent either diffusion-restricted necrosis or hypercellular tumor. This study explored postmortem brain specimens and a population analysis of overall survival to determine the identity and implications of such lesions. MATERIALS AND METHODS Postmortem examinations were performed on 6 patients with recurrent glioblastoma on bevacizumab with progressively growing regions of diffusion restriction. ADC values were extracted from regions of both hypercellular tumor and necrosis. A receiver operating characteristic analysis was performed to define optimal ADC thresholds for differentiating tissue types. A retrospective population study was also performed comparing the overall survival of 64 patients with recurrent glioblastoma treated with bevacizumab. Patients were separated into 3 groups: no diffusion restriction, diffusion restriction that appeared and progressed within 5 months of bevacizumab initiation, and delayed or stable diffusion restriction. An additional analysis was performed assessing tumor O6-methylguanine-DNA-methyltransferase methylation. RESULTS The optimal ADC threshold for differentiation of hypercellularity and necrosis was 0.736 × 10-3mm2/s. Progressively expanding diffusion restriction was pathologically confirmed to be coagulative necrosis surrounded by viable tumor. Progressive lesions were associated with the worst overall survival, while stable lesions showed the greatest overall survival (P < .05). Of the 40% of patients with O6-methylguanine-DNA-methyltransferase methylated tumors, none developed diffusion-restricted lesions. CONCLUSIONS Progressive diffusion-restricted lesions were pathologically confirmed to be coagulative necrosis surrounded by viable tumor and associated with decreased overall survival. Stable lesions were, however, associated with increased overall survival. All lesions were associated with O6-methylguanine-DNA-methyltransferase unmethylated tumors.
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Affiliation(s)
- H S Nguyen
- From the Departments of Neurosurgery (H.S.N., W.M.M.)
| | - N Milbach
- Radiology (N.M., S.L.H., S.D.R., K.M.S., P.S.L.)
| | - S L Hurrell
- Radiology (N.M., S.L.H., S.D.R., K.M.S., P.S.L.)
| | | | | | - J A Bovi
- Radiation Oncology (J.A.B., C.J.S.)
| | | | - W M Mueller
- From the Departments of Neurosurgery (H.S.N., W.M.M.)
| | - S D Rand
- Radiology (N.M., S.L.H., S.D.R., K.M.S., P.S.L.)
| | - K M Schmainda
- Radiology (N.M., S.L.H., S.D.R., K.M.S., P.S.L.)
- Biophysics (K.M.S., P.S.L.), Medical College of Wisconsin, Milwaukee, Wisconsin
| | - P S LaViolette
- Radiology (N.M., S.L.H., S.D.R., K.M.S., P.S.L.)
- Biophysics (K.M.S., P.S.L.), Medical College of Wisconsin, Milwaukee, Wisconsin
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Schultz CJ, Lauritsch G, Van Mieghem N, Rohkohl C, Serruys PW, van Geuns RJ, de Jaegere PPT. Rotational angiography with motion compensation: first-in-man use for the 3D evaluation of transcatheter valve prostheses. EUROINTERVENTION 2016; 11:442-9. [PMID: 24974808 DOI: 10.4244/eijy14m06_08] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIMS We evaluated a novel motion-compensating 3D reconstruction technique applied to rotational angiography (R-angio) which produces MSCT-like images for evaluation of implanted TAVI prostheses without requiring rapid pacing. METHODS AND RESULTS Fifty-one consecutive patients were retrospectively identified who were evaluated with rotational angiography (R-angio) using the Siemens Artis zee angiographic C-arm system after TAVI with a Medtronic CoreValve prosthesis. A novel 3D image reconstruction technique was applied which corrects for cardiac motion. CoreValve frame geometry was evaluated according to the same protocol for MSCT and R-angio at the level of: 1) the inflow, 2) the nadirs, 3) central coaptation, and 4) the commissures. The native aortic annulus dimensions were measured at the nadirs of the three leaflets. Sizing ratio, prosthesis expansion and frame ellipticity were assessed. Good quality 3D reconstructions were obtained in 43 patients (84%) and failure was predictable prior to reconstruction in six of the other seven patients (superposition of radiographically dense object n=4, obesity n=2). Prosthesis inflow ellipticity and expansion were correlated with implantation depth (respectively r=-0.46, p<0.01, and r=0.61, p<0.001). Aortic regurgitation grade ≥2 was associated with greater prosthesis ellipticity at the level of central coaptation (median [25th-75th percentile]: 1.15 [1.10-1.20] vs. 1.08 [1.06-1.12], p=0.009). The inter-observer, inter-modality (MSCT, R-angio) variability in measurement at the level of coaptation for minimum diameter, maximum diameter and area were all low (respectively, mean ±SD:1.2% ±1.2; 1.7% ±1.8 and 2.0% ±1.3). CONCLUSIONS R-angio with motion-compensated reconstruction offers new possibilities for evaluation of the post-implantation geometry of percutaneous structural heart prostheses and the potential clinical effects.
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Affiliation(s)
- Carl J Schultz
- Department of Cardiology, Erasmus MC, Rotterdam, The Netherlands
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Dedic A, Lubbers MM, Schaap J, Lamfers EJ, Rensing BJ, Braam RL, Nathoe HM, Post JC, Rood PP, Schultz CJ, Ouhlous M, Boersma E, Nieman K. Coronary CT angiography for suspected acute coronary syndrome in the era of high-sensitivity troponins – Men versus women. J Cardiovasc Comput Tomogr 2016. [DOI: 10.1016/j.jcct.2015.12.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Schultz CJ, Slots TLB, Yong G, Aben JP, Van Mieghem N, Swaans M, Rahhab Z, El Faquir N, van Geuns R, Mast G, Zijlstra F, de Jaegere PPT. An objective and reproducible method for quantification of aortic regurgitation after TAVI. EUROINTERVENTION 2015; 10:355-63. [PMID: 24832213 DOI: 10.4244/eijy14m05_06] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIMS We describe a new semi-automated method that measures aortic regurgitation (AR) on contrast aortography with the objectives of reducing the inter-observer variability and standardising image acquisition. METHODS AND RESULTS Aortograms from three participating centres were reviewed to generate the following quality criteria: entire left ventricle and aortic root in view, descending aorta or TOE probe not over-projected, breath hold, no table motion, and adequate contrast opacification of the aortic root. AR was visually graded (Sellers) and was quantified by measuring the area under time-contrast density curves in the aortic root (reference) and the left ventricle. Quality criteria were met in 44 retrospectively identified aortograms and in 22 (69%) of 32 prospectively collected aortograms. The visual AR grade (Sellers) was highly correlated with time-density measurements including relative area under the curve (RAUC) and qRA index (r=0.81 and 0.83, respectively, p<0.001). Inter-observer reproducibility of visual grading was moderate (kappa 0.47-0.60, p<0.001). Inter-observer measurement of RAUC and qRA index were highly correlated (r=0.98, p<0.001) and showed a high level of agreement. CONCLUSIONS Quantification of aortic regurgitation by measurement of time-density changes on contrast aortography may improve the reproducibility of AR assessment in the catheter laboratory. Steps for standardised aortography acquisition are proposed.
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Affiliation(s)
- Carl J Schultz
- Department of Cardiology, Erasmus MC, Rotterdam, The Netherlands
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Baka N, Metz CT, Schultz CJ, van Geuns RJ, Niessen WJ, van Walsum T. Oriented Gaussian mixture models for nonrigid 2D/3D coronary artery registration. IEEE Trans Med Imaging 2014; 33:1023-1034. [PMID: 24770908 DOI: 10.1109/tmi.2014.2300117] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
2D/3D registration of patient vasculature from preinterventional computed tomography angiography (CTA) to interventional X-ray angiography is of interest to improve guidance in percutaneous coronary interventions. In this paper we present a novel feature based 2D/3D registration framework, that is based on probabilistic point correspondences, and show its usefulness on aligning 3D coronary artery centerlines derived from CTA images with their 2D projection derived from interventional X-ray angiography. The registration framework is an extension of the Gaussian mixture model (GMM) based point-set registration to the 2D/3D setting, with a modified distance metric. We also propose a way to incorporate orientation in the registration, and show its added value for artery registration on patient datasets as well as in simulation experiments. The oriented GMM registration achieved a median accuracy of 1.06 mm, with a convergence rate of 81% for nonrigid vessel centerline registration on 12 patient datasets, using a statistical shape model. The method thereby outperformed the iterative closest point algorithm, the GMM registration without orientation, and two recently published methods on 2D/3D coronary artery registration.
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Van Geuns RJ, De Jaegere P, Diletti R, Karanasos A, Muramatsu T, Nauta ST, Onuma Y, Regar E, Schultz CJ, Serruys PW, Van Mieghem NM, Zijlstra F. TCT-429 Short- and intermediate- term clinical outcomes after implantation of everolimus-eluting bioresorbable scaffold in complex lesions : a prospective single-arm study - ABSORB Expand trial. J Am Coll Cardiol 2013. [DOI: 10.1016/j.jacc.2013.08.1170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Diletti R, Karanasos A, Muramatsu T, Nakatani S, Nauta ST, Onuma Y, Regar E, Schultz CJ, Serruys PW, Van Geuns RJ, Van Mieghem NM, Zijlstra F. TCT-254 Everolimus Eluting Bioresorbable Vascular Scaffolds In Patients With ST-Segment Myocardial Infarction. Safety Feasibility and Acute Performance. J Am Coll Cardiol 2013. [DOI: 10.1016/j.jacc.2013.08.989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Metz CT, Schaap M, Klein S, Baka N, Neefjes LA, Schultz CJ, Niessen WJ, van Walsum T. Registration of 3D+t coronary CTA and monoplane 2D+t X-ray angiography. IEEE Trans Med Imaging 2013; 32:919-931. [PMID: 23392343 DOI: 10.1109/tmi.2013.2245421] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A method for registering preoperative 3D+t coronary CTA with intraoperative monoplane 2D+t X-ray angiography images is proposed to improve image guidance during minimally invasive coronary interventions. The method uses a patient-specific dynamic coronary model, which is derived from the CTA scan by centerline extraction and motion estimation. The dynamic coronary model is registered with the 2D+t X-ray sequence, considering multiple X-ray time points concurrently, while taking breathing induced motion into account. Evaluation was performed on 26 datasets of 17 patients by comparing projected model centerlines with manually annotated centerlines in the X-ray images. The proposed 3D+t/2D+t registration method performed better than a 3D/2D registration method with respect to the accuracy and especially the robustness of the registration. Registration with a median error of 1.47 mm was achieved.
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Affiliation(s)
- Coert T Metz
- Department of Radiology and Department of Medical Informatics, ErasmusMC, 3015 GE Rotterdam, The Netherlands
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Schultz CJ, van Mieghem NM, van der Boon RM, Dharampal AS, Lauritsch G, Rossi A, Moelker A, Krestin G, van Geuns R, de Feijter P, Serruys PW, de Jaegere P. Effect of body mass index on the image quality of rotational angiography without rapid pacing for planning of transcatheter aortic valve implantation: a comparison with multislice computed tomography. Eur Heart J Cardiovasc Imaging 2013; 15:133-41. [PMID: 23530030 DOI: 10.1093/ehjci/jet037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
AIMS To evaluate the feasibility of procedural planning for transcatheter aortic valve implantation (TAVI) using rotational angiography (R-angio) by comparison with multislice computed tomography (MSCT) and to investigate determinants of the image quality of R-angio. METHODS AND RESULTS Patients who underwent R-angio of the left ventricle and cardiac MSCT were eligible. R-angio acquisition was performed during contrast injection through a 6F pigtail catheter positioned in the left ventricle. On 3D R-angio and MSCT data sets, diameter measurements were made on short-axis images at the level of the aortic annulus (D(perimeter), D(area)), ascending aorta, sino-tubular junction (ST-junction), and the sinus of Valsalva. At the level of the aortic annulus, diagnostic image quality was obtained in 49 of 56 patients. In all patients with a body mass index (BMI) < 29 kg/m(2), image quality was acceptable whether or not rapid pacing was used. In patients with BMI ≥ 29 kg/m(2), the image quality was poor in 1 of 9 (11%) who were rapidly paced compared with 6 of 12 (50%) who were not. The correlation between R-angio and MSCT measurements was high for aortic annulus D(perimeter), D(area), ST-junction, Valsalva sinus, and ascending aorta (respectively, R = 0.90, 0.90, 0.91, 0.92, and 0.89). The correlations improved further when the analysis was limited to patients with a BMI < 29 kg/m(2) (respectively, 0.92, 0.92, 0.92, 0.92, and 0.93). CONCLUSION R-angio of the left ventricle allows precise measurement of the aortic root and annulus and was feasible for sizing at the time of TAVI. Diagnostic image quality was obtained without rapid pacing in all patients with a BMI < 29 kg/m(2).
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Affiliation(s)
- Carl J Schultz
- Department of Cardiology, Erasmus MC, PB 412, Rotterdam 3000 CA, the Netherlands
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Neefjes LA, Rossi A, Genders TSS, Nieman K, Papadopoulou SL, Dharampal AS, Schultz CJ, Weustink AC, Dijkshoorn ML, Ten Kate GJR, Dedic A, van Straten M, Cademartiri F, Hunink MGM, Krestin GP, de Feyter PJ, Mollet NR. Diagnostic accuracy of 128-slice dual-source CT coronary angiography: a randomized comparison of different acquisition protocols. Eur Radiol 2012; 23:614-22. [PMID: 23052644 DOI: 10.1007/s00330-012-2663-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 06/11/2012] [Accepted: 06/29/2012] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To compare the diagnostic performance and radiation exposure of 128-slice dual-source CT coronary angiography (CTCA) protocols to detect coronary stenosis with more than 50 % lumen obstruction. METHODS We prospectively included 459 symptomatic patients referred for CTCA. Patients were randomized between high-pitch spiral vs. narrow-window sequential CTCA protocols (heart rate below 65 bpm, group A), or between wide-window sequential vs. retrospective spiral protocols (heart rate above 65 bpm, group B). Diagnostic performance of CTCA was compared with quantitative coronary angiography in 267 patients. RESULTS In group A (231 patients, 146 men, mean heart rate 58 ± 7 bpm), high-pitch spiral CTCA yielded a lower per-segment sensitivity compared to sequential CTCA (89 % vs. 97 %, P = 0.01). Specificity, PPV and NPV were comparable (95 %, 62 %, 99 % vs. 96 %, 73 %, 100 %, P > 0.05) but radiation dose was lower (1.16 ± 0.60 vs. 3.82 ± 1.65 mSv, P < 0.001). In group B (228 patients, 132 men, mean heart rate 75 ± 11 bpm), per-segment sensitivity, specificity, PPV and NPV were comparable (94 %, 95 %, 67 %, 99 % vs. 92 %, 95 %, 66 %, 99 %, P > 0.05). Radiation dose of sequential CTCA was lower compared to retrospective CTCA (6.12 ± 2.58 vs. 8.13 ± 4.52 mSv, P < 0.001). Diagnostic performance was comparable in both groups. CONCLUSION Sequential CTCA should be used in patients with regular heart rates using 128-slice dual-source CT, providing optimal diagnostic accuracy with as low as reasonably achievable (ALARA) radiation dose.
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Affiliation(s)
- Lisan A Neefjes
- Department of Cardiology, Erasmus Medical Center, Room Hs 207, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands
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Nuis RJ, Van Mieghem NM, Schultz CJ, Moelker A, van der Boon RM, van Geuns RJ, van der Lugt A, Serruys PW, Rodés-Cabau J, van Domburg RT, Koudstaal PJ, de Jaegere PP. Frequency and causes of stroke during or after transcatheter aortic valve implantation. Am J Cardiol 2012; 109:1637-43. [PMID: 22424581 DOI: 10.1016/j.amjcard.2012.01.389] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2011] [Revised: 01/17/2012] [Accepted: 01/17/2012] [Indexed: 10/28/2022]
Abstract
Transcatheter aortic valve implantation (TAVI) is invariably associated with the risk of clinically manifest transient or irreversible neurologic impairment. We sought to investigate the incidence and causes of clinically manifest stroke during TAVI. A total of 214 consecutive patients underwent TAVI with the Medtronic-CoreValve System from November 2005 to September 2011 at our institution. Stroke was defined according to the Valve Academic Research Consortium recommendations. Its cause was established by analyzing the point of onset of symptoms, correlating the symptoms with the computed tomography-detected defects in the brain, and analyzing the presence of potential coexisting causes of stroke, in addition to a multivariate analysis to determine the independent predictors. Stroke occurred in 19 patients (9%) and was major in 10 (5%), minor in 3 (1%), and transient (transient ischemic attack) in 6 (3%). The onset of symptoms was early (≤24 hours) in 8 patients (42%) and delayed (>24 hours) in 11 (58%). Brain computed tomography showed a cortical infarct in 8 patients (42%), a lacunar infarct in 5 (26%), hemorrhage in 1 (5%), and no abnormalities in 5 (26%). Independent determinants of stroke were new-onset atrial fibrillation after TAVI (odds ratio 4.4, 95% confidence interval 1.2 to 15.6), and baseline aortic regurgitation grade III or greater (odds ratio 3.2, 95% confidence interval 1.1 to 9.3). In conclusion, the incidence of stroke was 9%, of which >1/2 occurred >24 hours after the procedure. New-onset atrial fibrillation was associated with a 4.4-fold increased risk of stroke. In conclusion, these findings indicate that improvements in postoperative care after TAVI are equally, if not more, important for the reduction of periprocedural stroke than preventive measures during the procedure.
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Van Mieghem NM, Schultz CJ, van der Boon RMA, Nuis RJ, Tzikas A, Geleijnse ML, van Domburg RT, Serruys PW, de Jaegere PPT. Incidence, timing, and predictors of valve dislodgment during TAVI with the medtronic corevalve system. Catheter Cardiovasc Interv 2011; 79:726-32. [DOI: 10.1002/ccd.23275] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Accepted: 06/11/2011] [Indexed: 11/06/2022]
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Schultz CJ, Tzikas A, Moelker A, Rossi A, Nuis RJ, Geleijnse MM, van Mieghem N, Krestin GP, de Feyter P, Serruys PW, de Jaegere PP. Correlates on MSCT of paravalvular aortic regurgitation after transcatheter aortic valve implantation using the Medtronic CoreValve prosthesis. Catheter Cardiovasc Interv 2011; 78:446-55. [PMID: 21793166 DOI: 10.1002/ccd.22993] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2011] [Accepted: 01/15/2011] [Indexed: 12/17/2022]
Abstract
BACKGROUND To investigate the causes of paravalvular aortic regurgitation (PAR) after the implantation of the Medtronic CoreValve prosthesis (MCRS). METHODS AND RESULTS Fifty-six patients underwent MSCT before TAVI with a MCRS and PAR was assessed with transthoracic echocardiography (TTE) between 5 and 10 days after TAVI. The aortic annulus smallest and largest orthogonal diameters and the mean diameter from the area were determined on MSCT on an axial image at the nadir of all three native leaflets. PAR was related to relevant anatomical structures on MSCT according to a clockface in the orientation of the parasternal short axis view on TTE. PAR ≥ 1 was present in 25% of the patients and was associated with a larger annulus, a lower degree of over sizing and with more aortic root calcification. On MSCT post TAVI malapposition was seen predominantly at the aorto-mitral fibrous continuity and the aspect of the largest diameter of the aortic annulus on the inside curve of the ascending aorta. PAR was predominantly seen at these two anatomic locations and less frequent in the area that contains the ventricular membranous septum and the area between the non- and right coronary sinus. CONCLUSIONS Mild to moderate PAR is common after TAVI with the MCRS. The availability of additional (larger) prosthesis sizes in combination with improved sizing based on mean annulus diameter (e.g., D(CSA)) may help to reduce PAR.
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Affiliation(s)
- Carl J Schultz
- Department of Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands.
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Schultz CJ, Papadopoulou SL, Moelker A, Nuis RJ, Kate GJT, Mollet NR, Geleijnse ML, de Feyter P, de Jaegere P, Serruys PW. Transaortic flow velocity from dual-source MDCT for the diagnosis of aortic stenosis severity. Catheter Cardiovasc Interv 2011; 78:127-35. [DOI: 10.1002/ccd.22958] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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