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Lefferts EC, Lee DC. Greater Adherence to Life's Essential 8 for Cardiovascular Health Is Associated With Lower Arterial Stiffness in Survivors of Cancer. J Am Heart Assoc 2024; 13:e032886. [PMID: 38842278 DOI: 10.1161/jaha.123.032886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 05/01/2024] [Indexed: 06/07/2024]
Abstract
BACKGROUND Survivors of cancer have elevated risk of cardiovascular disease, likely stemming from the negative impact of anticancer therapies on vascular function. Arterial stiffness is a strong indicator of vascular function and independent predictor of cardiovascular disease. The American Heart Association recommends Life's Essential 8 for optimal cardiovascular health. It is currently unknown, however, whether greater adherence to Life's Essential 8 is associated with low arterial stiffness in survivors of cancer. METHODS AND RESULTS This cross-sectional study included 172 older adult (≥65 years) survivors of cancer (74±6 years; 58% female). Life's Essential 8 100-point cardiovascular health score, with higher scores indicative of better cardiovascular health, was calculated based on 8 components: diet, physical activity, nicotine exposure, sleep health, body mass index, blood lipids, blood glucose, and blood pressure. Participants were classified as having low (<60), moderate (60-79), or high (≥80) cardiovascular health. Pulse wave velocity (PWV) was used to assess arterial stiffness; with high arterial stiffness defined as a pulse wave velocity ≥10 m/s. The mean cardiovascular health score was 72±11 and 40 survivors (23%) had high arterial stiffness. Compared with low cardiovascular health, the odds ratio of high arterial stiffness was 0.12 (95% CI, 0.03-0.50) and 0.02 (95% CI, 0.003-0.18) for moderate and high cardiovascular health, respectively. Every 10-point increase in the cardiovascular health score was associated with a 0.43 m/s reduction in pulse wave velocity (P<0.001). CONCLUSIONS Greater adherence to the American Heart Association's Life's Essential 8 was associated with lower prevalence of high arterial stiffness in older adult survivors of cancer. Prospective studies with larger samples are needed.
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Affiliation(s)
- Elizabeth C Lefferts
- Department of Kinesiology, College of Human Sciences Iowa State University Ames IA USA
| | - Duck-Chul Lee
- Department of Kinesiology, College of Human Sciences Iowa State University Ames IA USA
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2
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Shlimon K, Lindenberger M, De Basso R, Cinthio M, Bjarnegård N. Increased diameter and stiffness of elastic but not muscular arteries in men with abdominal aortic aneurysm. J Appl Physiol (1985) 2024; 136:1410-1417. [PMID: 38660725 DOI: 10.1152/japplphysiol.00875.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 04/05/2024] [Accepted: 04/20/2024] [Indexed: 04/26/2024] Open
Abstract
It has been proposed that formation of abdominal aortic aneurysm (AAA) is part of a systemic arterial dilatative disease. However, arteries in the upper extremities are scarcely studied and it remains unclear whether both muscular and elastic arteries are affected by the proposed systemic arterial dilatation. The aim of this study was to investigate the diameter and stiffness of muscular and elastic arteries in arterial branches originating from the aortic arch. Twenty-six men with AAA (69 ± 4 yr) and 57 men without AAA (70 ± 5 yr) were included in the study. Ultrasound was used to examine the distal and proximal brachial artery, axillary artery, and common carotid artery (CCA), and measurement of diameter and diameter change was performed with wall-tracking software. Blood pressure measurements were used to calculate local arterial wall stiffness indices. The AAA cohort presented larger arterial diameters in the CCA and axillary artery after adjustment for body surface area (P = 0.002, respectively), whereas the brachial artery diameters were unchanged. Indices of increased stiffness in CCA (e.g., lower distensibility, P = 0.003) were seen in subjects with AAA after adjustments for body mass index and mean arterial blood pressure. This study supports the theory of a systemic arterial dilating diathesis in peripheral elastic, but not in muscular, arteries. Peripheral elastic arteries also exhibited increased stiffness, in analogy with findings in the aorta in AAA.NEW & NOTEWORTHY We present data partially supporting the notion of abdominal aortic aneurysm being a systemic vascular disease with focal manifestation in the abdominal aorta, from two well-defined groups recruited from a regional screening program. We show that elastic arteries distal from the aorta exhibit vascular alterations without aneurysmal formation in subjects with AAA compared with controls while muscular arteries seem unaffected.
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Affiliation(s)
- Kristian Shlimon
- Division of Diagnostics and Specialist Medicine, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Marcus Lindenberger
- Division of Diagnostics and Specialist Medicine, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
- Department of Cardiology, Linköping University, Linköping, Sweden
- Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
| | - Rachel De Basso
- Department of Natural Sciences and Biomedicine, School of Health and Welfare, Jönköping University, Jönköping, Sweden
| | - Magnus Cinthio
- Department of Electrical Measurements, Lund University, Lund, Sweden
| | - Niclas Bjarnegård
- Division of Diagnostics and Specialist Medicine, Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden
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Schäfer F, Sturdy J, Hellevik LR. Age and sex-dependent sensitivity analysis of a common carotid artery model. Biomech Model Mechanobiol 2024; 23:825-843. [PMID: 38369558 PMCID: PMC11101589 DOI: 10.1007/s10237-023-01808-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 12/22/2023] [Indexed: 02/20/2024]
Abstract
The common carotid artery (CCA) is an accessible and informative site for assessing cardiovascular function which makes it a prime candidate for clinically relevant computational modelling. The interpretation of supplemental information possible through modelling is encumbered by measurement uncertainty and population variability in model parameters. The distribution of model parameters likely depends on the specific sub-population of interest and delineation based on sex, age or health status may correspond to distinct ranges of typical parameter values. To assess this impact in a 1D-CCA-model, we delineated specific sub-populations based on age, sex and health status and carried out uncertainty quantification and sensitivity analysis for each sub-population. We performed a structured literature review to characterize sub-population-specific variabilities for eight model parameters without consideration of health status; variations for a healthy sub-populations were based on previously established references values. The variabilities of diameter and distensibility found in the literature review differed from those previously established in a healthy population. Model diameter change and pulse pressure were most sensitive to variations in distensibility, while pressure was most sensitive to resistance in the Windkessel model for all groups. Uncertainties were lower when variabilities were based on a healthy sub-population; however, the qualitative distribution of sensitivity indices was largely similar between the healthy and general population. Average sensitivity of the pressure waveform showed a moderate dependence on age with decreasing sensitivity to distal resistance and increasing sensitivity to distensibility and diameter. The female population was less sensitive to variations in diameter but more sensitive to distensibility coefficient than the male population. Overall, as hypothesized input variabilities differed between sub-populations and resulted in distinct uncertainties and sensitivities of the 1D-CCA-model outputs, particularly over age for the pressure waveform and between males and females for pulse pressure.
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Affiliation(s)
- Friederike Schäfer
- Division of Biomechanics, Department of Structural Engineering, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 1A, 7034, Trondheim, Norway.
| | - Jacob Sturdy
- Division of Biomechanics, Department of Structural Engineering, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 1A, 7034, Trondheim, Norway
| | - Leif Rune Hellevik
- Division of Biomechanics, Department of Structural Engineering, Norwegian University of Science and Technology (NTNU), Richard Birkelands vei 1A, 7034, Trondheim, Norway
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Mulligan LJ, Thrash J, Mitrev L, Folk D, Exarchakis A, Ewert D, Hill JC. Evaluation of vascular aging on measures of cardiac function and mechanical efficiency: insights from in-silico modeling. Front Cardiovasc Med 2024; 11:1351484. [PMID: 38601041 PMCID: PMC11004371 DOI: 10.3389/fcvm.2024.1351484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 01/23/2024] [Indexed: 04/12/2024] Open
Abstract
Introduction This study evaluated the hypothesis that vascular aging (VA) reduces ventricular contractile function and mechanical efficiency (ME) using the left ventricular pressure-volume (PV) construct. Methods A previously published in-silico computational model (CM) was modified to evaluate the hypothesis in two phases. In phase I, the CM included five settings of aortic compliance (CA) from normal to stiff, studied at a heart rate of 80 bpm, and phase II included the normal to stiff CA settings evaluated at 60, 100, and 140 bpm. The PV construct provided steady-state and transient data through a simulated vena caval occlusion (VCO). The steady-state data included left ventricular volumes (EDV and ESV), stroke work (SW), and VCO provided the PV area (PVA) data in addition to the three measures of contractile state (CS): end-systolic pressure-volume relationship (ESPVR), dP/dtmax-EDV and preload recruitable stroke work (PRSW). Finally, ME was calculated with the SW/PVA parameter. Results In phase I, EDV and ESV increased, as did SW and PVA. The impact on the CS parameters demonstrated a small decrease in ESPVR, no change in dP/dtmax-EDV, and a large increase in PRSW. ME decreased from 71.5 to 60.8%, respectively. In phase II, at the normal and stiff CA settings, across the heart rates studied, EDV and ESV decreased, ESPVR and dP/dtmax-EDV increased and PRSW decreased. ME decreased from 76.4 to 62.6% at the normal CA and 65.8 to 53.2% at the stiff CA. Discussion The CM generated new insights regarding how the VA process impacts the contractile state of the myocardium and ME.
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Affiliation(s)
- Lawrence J. Mulligan
- Department of Anesthesiology, Cooper University Hospital, Camden, NJ, United States
- Cooper Medical School of Rowan University, Camden, NJ, United States
| | - Julian Thrash
- Department of Electrical and Computer Engineering, North Dakota State University, Fargo, ND, United States
| | - Ludmil Mitrev
- Department of Anesthesiology, Cooper University Hospital, Camden, NJ, United States
- Cooper Medical School of Rowan University, Camden, NJ, United States
| | - Douglas Folk
- Department of Integrated Engineering, Minnesota State UniversityMankato, MN, United States
| | - Alyssa Exarchakis
- Cooper Medical School of Rowan University, Camden, NJ, United States
| | - Daniel Ewert
- Department of Biomedical Engineering, University of North Dakota, Grand Forks, ND, United States
| | - Jeffrey C. Hill
- Department of Diagnostic Medical Sonography, School of Medical Imaging and Therapeutics, Massachusetts College of Pharmacy and Health Sciences University, Worcester, MA, United States
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Xie Y, Yu C, Zhou W, Zhu L, Wang T, Bao H, Cheng X. Relationship between normal weight central obesity and arterial stiffness in Chinese adults with hypertension. Nutr Metab Cardiovasc Dis 2024; 34:343-352. [PMID: 38145917 DOI: 10.1016/j.numecd.2023.09.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 12/27/2023]
Abstract
BACKGROUND AND AIMS Normal weight central obesity (NWCO) is a category of obesity that is characterized by having a normal BMI and presence of abdominal obesity. Recently, studies have reported that NWCO was associated with the cardiovascular diseases. The researches exploring the relationship between NWCO and arterial stiffness are limited. So this study intended to investigate the relationship between NWCO and arterial stiffness in Chinese adults with hypertension. METHODS AND RESULTS This study is a sub-study of the China H-type Hypertension Registry Study. We included 8580 Chinese hypertensive patients with normal weight (18.5 kg/m2 ≤BMI <24 kg/m2). Central obesity was defined as waist-height ratio ≥0.5, and participants were categorized into two groups: NWCO and normal weight and no central obesity (NWNO). Using the brachial-ankle pulse wave conduction velocity (baPWV) assessed the arterial stiffness. Multiple linear regression analysis was used to evaluate relationship between NWCO and baPWV. Multiple logistic regression analysis was used to evaluate relationship between NWCO and arterial stiffness. Of 8580 participants, 4327 (50.4 %) were NWCO. The multiple linear regression analysis demonstrated that people with NWCO had higher baPWV value (total people: β = 38.33, 95%CI 22.82-53.84; men: β = 39.87, 95%CI 18.43-61.32; women: β = 29.65, 95%CI 7.20-52.09) compared with NWNO. The baPWV ≥1800 cm/s was defined as arterial stiffness, and the multiple logistic regression analysis showed that people with NWCO associated higher arterial stiffness risk (total people: OR = 1.25, 95%CI 1.12-1.39; men: OR = 1.29, 95%CI 1.11-1.50; women: OR = 1.18, 95%CI 1.01-1.38). CONCLUSION NWCO is significantly related to increased risk of arterial stiffness in Chinese adults with hypertension.
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Affiliation(s)
- Yanyou Xie
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Jiangxi Sub-center of National Clinical Research Center for Cardiovascular Diseases, China
| | - Chao Yu
- Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, China; Jiangxi Sub-center of National Clinical Research Center for Cardiovascular Diseases, China
| | - Wei Zhou
- Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, China; Jiangxi Sub-center of National Clinical Research Center for Cardiovascular Diseases, China
| | - Lingjuan Zhu
- Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, China; Jiangxi Sub-center of National Clinical Research Center for Cardiovascular Diseases, China
| | - Tao Wang
- Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, China; Jiangxi Sub-center of National Clinical Research Center for Cardiovascular Diseases, China
| | - Huihui Bao
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, China; Jiangxi Sub-center of National Clinical Research Center for Cardiovascular Diseases, China
| | - Xiaoshu Cheng
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Center for Prevention and Treatment of Cardiovascular Diseases, The Second Affiliated Hospital of Nanchang University, China; Jiangxi Sub-center of National Clinical Research Center for Cardiovascular Diseases, China.
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Hou J, Li M, Han J, Yu S, Jia X, Sun F, Zhang Y. Northern Shanghai Study II: systematic assessment and management of early organ damage and its role in preventing and reducing cardiovascular risk-protocol of a prospective study. BMJ Open 2023; 13:e073423. [PMID: 38159946 PMCID: PMC10759065 DOI: 10.1136/bmjopen-2023-073423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 11/21/2023] [Indexed: 01/03/2024] Open
Abstract
INTRODUCTION Cardiovascular diseases are the leading cause of death and disease burden in China. However, there is a lack of prospective cohort studies suitable for evaluating early organ damage and its role in preventing and reducing cardiovascular risk among Chinese residents. This study intends to establish the first database based on the phenotypes of all early structural and functional damage of cardiovascular organs in Chinese population. Moreover, a digital follow-up mechanism will be formed, a prospective population cohort will be established, a biological sample bank for early cardiovascular organ damage will be established, and an intervention and management system for early damage of cardiovascular organs will be explored. METHODS AND ANALYSIS This study is a prospective cohort study built on the foundation of the Northern Shanghai Study I. People aged 18-75 years are enrolled. After the recruitment, first, corresponding physical measurements and clinical examinations are conducted to collect cardiovascular risk factors and establish the demographic baseline of the study population. Next, the latest equipment is used to evaluate early structural and functional cardiovascular organ damage including heart, macrovessels, microcirculation, renal function and fundus. Meanwhile, the blood, urine, faeces and other biological samples of participants are collected to establish the cardiometabolic and gut microbiota analysis databases. The population is followed up every 2 years. Comprehensive assessment of early organ damage will be used to predict cardiovascular risk, guide people to change lifestyles to achieve early prevention and provide corresponding treatment recommendations. ETHICS AND DISSEMINATION This study was approved by the Shanghai Tenth People's Hospital Institutional Review Board. All participants signed a written consent form. The results of this study will be disseminated in peer-reviewed journals. Ethics approval: SHYS-IEC-5.0/22k148/P01. TRIAL REGISTRATION NUMBER NCT05435898.
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Affiliation(s)
- Jingjing Hou
- Department of Cardiology,Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Moran Li
- Department of Cardiology,Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jun Han
- Department of Cardiology,Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shikai Yu
- Department of Cardiology,Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xinming Jia
- Clinical Medicine Scientific and Technical Innovation Center,Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Fenyong Sun
- Department of Clinical Laboratory Medicine,Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi Zhang
- Department of Cardiology,Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
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Litwin L, Sundholm JKM, Olander RFW, Meinilä J, Kulmala J, Tammelin TH, Rönö K, Koivusalo SB, Eriksson JG, Sarkola T. Associations Between Sedentary Time, Physical Activity, and Cardiovascular Health in 6-Year-Old Children Born to Mothers With Increased Cardiometabolic Risk. Pediatr Exerc Sci 2023:1-9. [PMID: 38154001 DOI: 10.1123/pes.2023-0058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/11/2023] [Accepted: 09/20/2023] [Indexed: 12/30/2023]
Abstract
PURPOSE To assess associations between sedentary time (ST), physical activity (PA), and cardiovascular health in early childhood. METHOD Cross-sectional study including 160 children (age 6.1 y [SD 0.5], 86 boys, 93 maternal body mass index ≥ 30 kg/m2, and 73 gestational diabetes) assessed for pulse wave velocity, echocardiography, ultra-high frequency 48-70 MHz vascular ultrasound, and accelerometery. RESULTS Boys had 385 (SD 53) minutes per day ST, 305 (SD 44) minutes per day light PA, and 81 (SD 22) minutes per day moderate to vigorous PA (MVPA). Girls had 415 (SD 50) minutes per day ST, 283 (SD 40) minutes per day light PA, and 66 (SD 19) minutes per day MVPA. In adjusted analyses, MVPA was inversely associated with resting heart rate (β = -6.6; 95% confidence interval, -12.5 to -0.7) and positively associated with left ventricular mass (β = 6.8; 1.4-12.3), radial intima-media thickness (β = 11.4; 5.4-17.5), brachial intima-media thickness (β = 8.0; 2.0-14.0), and femoral intima-media thickness (β = 1.3; 0.2-2.3). MVPA was inversely associated with body fat percentage (β = -3.4; -6.6 to -0.2), diastolic blood pressure (β = -0.05; -0.8 to -0.1), and femoral (β = -18.1; -32.4 to -0.8) and radial (β = -13.4; -24.0 to -2.9) circumferential wall stress in boys only. ST and pulse wave velocity showed no significant associations. CONCLUSIONS In young at-risk children, MVPA is associated with cardiovascular remodeling, partly in a sex-dependant way, likely representing physiological adaptation, but ST shows no association with cardiovascular health in early childhood.
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Affiliation(s)
- Linda Litwin
- Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki,Finland
- Department of Congenital Heart Defects and Pediatric Cardiology, FMS in Zabrze, Medical University of Silesia, Katowice,Poland
| | - Johnny K M Sundholm
- Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki,Finland
- Minerva Foundation Institute for Medical Research, Helsinki,Finland
| | - Rasmus F W Olander
- Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki,Finland
| | - Jelena Meinilä
- Department of Food and Nutrition, University of Helsinki, Helsinki,Finland
| | - Janne Kulmala
- Likes, School of Health and Social Studies, Jamk University of Applied Sciences, Jyväskylä,Finland
| | - Tuija H Tammelin
- Likes, School of Health and Social Studies, Jamk University of Applied Sciences, Jyväskylä,Finland
| | - Kristiina Rönö
- Women's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki,Finland
| | - Saila B Koivusalo
- Department of Obstetrics and Gynecology, University of Turku and Turku University Hospital, Turku,Finland
- University of Helsinki and Helsinki University Hospital, Helsinki,Finland
| | - Johan G Eriksson
- Folkhälsan Research Center, Helsinki,Finland
- Department of General Practice and Primary Health Care, University of Helsinki and Helsinki University Hospital, Helsinki,Finland
- Human Potential Translational Research Programme and Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University Singapore, Singapore,Singapore
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), Singapore,Singapore
| | - Taisto Sarkola
- Children's Hospital, University of Helsinki and Helsinki University Hospital, Helsinki,Finland
- Minerva Foundation Institute for Medical Research, Helsinki,Finland
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Jiang Y, Ma S, Cao Y. Guided wave elastography of jugular veins: Theory, method and in vivo experiment. J Biomech 2023; 160:111828. [PMID: 37837838 DOI: 10.1016/j.jbiomech.2023.111828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 08/01/2023] [Accepted: 10/03/2023] [Indexed: 10/16/2023]
Abstract
Testing the mechanical properties of veins is important for diagnosing some cardiovascular diseases such as deep venous thrombosis. Additionally, it plays a crucial role in designing body protective products such as head protective gear, where simulations are necessary to predict the mechanical responses of bridging veins during head impacts. The data on venous mechanical properties reported in the literature have mainly been obtained from ex vivo experiments, and inferring the material parameters of veins in vivo is challenging. Here, we address this issue by proposing a guided wave elastography method in which guided waves are generated in the jugular veins with focused acoustic radiation force and tracked by an ultrafast ultrasound imaging system. Then, a mechanical model considering the effects of the perivascular soft tissues and prestresses in the veins was applied to analyze the wave motions in the jugular veins. Our model enables the development of an inverse method to infer the elastic properties of the veins from measured guided waves. Phantom experiments were performed to validate the theory, and in vivo experiments were carried out to demonstrate the usefulness of the inverse method in practice.
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Affiliation(s)
- Yuxuan Jiang
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, PR China
| | - Shiyu Ma
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, PR China
| | - Yanping Cao
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, PR China.
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Hamrangsekachaee M, Wen K, Yazdani N, Willits RK, Bencherif SA, Ebong EE. Endothelial glycocalyx sensitivity to chemical and mechanical sub-endothelial substrate properties. Front Bioeng Biotechnol 2023; 11:1250348. [PMID: 38026846 PMCID: PMC10643223 DOI: 10.3389/fbioe.2023.1250348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 10/13/2023] [Indexed: 12/01/2023] Open
Abstract
Glycocalyx (GCX) is a carbohydrate-rich structure that coats the surface of endothelial cells (ECs) and lines the blood vessel lumen. Mechanical perturbations in the vascular environment, such as blood vessel stiffness, can be transduced and sent to ECs through mechanosensors such as GCX. Adverse stiffness alters GCX-mediated mechanotransduction and leads to EC dysfunction and eventually atherosclerotic cardiovascular diseases. To understand GCX-regulated mechanotransduction events, an in vitro model emulating in vivo vessel conditions is needed. To this end, we investigated the impact of matrix chemical and mechanical properties on GCX expression via fabricating a tunable non-swelling matrix based on the collagen-derived polypeptide, gelatin. To study the effect of matrix composition, we conducted a comparative analysis of GCX expression using different concentrations (60-25,000 μg/mL) of gelatin and gelatin methacrylate (GelMA) in comparison to fibronectin (60 μg/mL), a standard coating material for GCX-related studies. Using immunocytochemistry analysis, we showed for the first time that different substrate compositions and concentrations altered the overall GCX expression on human umbilical vein ECs (HUVECs). Subsequently, GelMA hydrogels were fabricated with stiffnesses of 2.5 and 5 kPa, representing healthy vessel tissues, and 10 kPa, corresponding to diseased vessel tissues. Immunocytochemistry analysis showed that on hydrogels with different levels of stiffness, the GCX expression in HUVECs remained unchanged, while its major polysaccharide components exhibited dysregulation in distinct patterns. For example, there was a significant decrease in heparan sulfate expression on pathological substrates (10 kPa), while sialic acid expression increased with increased matrix stiffness. This study suggests the specific mechanisms through which GCX may influence ECs in modulating barrier function, immune cell adhesion, and mechanotransduction function under distinct chemical and mechanical conditions of both healthy and diseased substrates.
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Affiliation(s)
| | - Ke Wen
- Chemical Engineering Department, Northeastern University, Boston, MA, United States
| | - Narges Yazdani
- Bioengineering Department, Northeastern University, Boston, MA, United States
| | - Rebecca K. Willits
- Chemical Engineering Department, Northeastern University, Boston, MA, United States
- Bioengineering Department, Northeastern University, Boston, MA, United States
| | - Sidi A. Bencherif
- Chemical Engineering Department, Northeastern University, Boston, MA, United States
- Bioengineering Department, Northeastern University, Boston, MA, United States
- Laboratoire de BioMécanique et BioIngénierie (BMBI), UMR CNRS, Sorbonne Universités, Université de Technologie of Compiègne (UTC), Compiègne, France
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States
| | - Eno E. Ebong
- Chemical Engineering Department, Northeastern University, Boston, MA, United States
- Bioengineering Department, Northeastern University, Boston, MA, United States
- Neuroscience Department, Albert Einstein College of Medicine, New York, NY, United States
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10
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Renlund M, Jääskeläinen T, Kivelä A, Heinonen S, Laivuori H, Sarkola T. Determinants of vascular structure and function in at-risk children born to mothers managed for pre-eclampsia (FINNCARE study). Front Cardiovasc Med 2023; 10:1264921. [PMID: 37859683 PMCID: PMC10582712 DOI: 10.3389/fcvm.2023.1264921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/13/2023] [Indexed: 10/21/2023] Open
Abstract
Background and aim Pre-eclampsia (PE) is related to elevated blood pressure (BP) in children. The study aims to investigate if elevated BP is reflected in child arterial health and how anthropometrics, body composition, and gestational and perinatal factors influenced this. Methods In this prospective cohort study, we assessed the arteries of 182 children exposed (46 had an early onset, with a diagnosis before 34 gestational weeks, and 136 had a late onset) and 85 children unexposed (non-PE) to PE at 8-12 years from delivery using ultra-high-frequency ultrasound in addition to ambulatory and central BPs, body composition and anthropometrics, and tonometry-derived pulse wave velocity (PWV). Results No differences were found in intima-media thickness (IMT), adventitia thickness (AT), lumen diameter (LD), local carotid artery stiffness, distensibility, or wall stress between PE-exposed and non-PE-exposed children. All children's brachial, radial, and femoral artery IMTs were associated with 24-h systolic BP (SBP) and pulse pressure, carotid-femoral PWV, and anthropometric measures. The 24-h SBP and anthropometrics, notably lean body mass, were independent predictors of peripheral artery IMTs (brachial R2 = 0.217, radial R2 = 0.208, femoral R2 = 0.214; p < 0.001). Head circumference predicted carotid artery IMT and LD (β = 0.163, p = 0.009; β = 0.417, p < 0.001, respectively), but carotid artery IMT was not associated with BP. No independent associations were found for peripheral artery ATs. Local carotid artery stiffness, distensibility, and wall stress were independently associated with adiposity. No significant associations were found between gestational or perinatal factors and child vascular health parameters. Conclusions The peripheral artery IMT of PE-exposed children is identical to that of non-PE-exposed children, but associated with BP. Adiposity is related to local carotid artery stiffness. These adverse associations in arterial health may reflect the early progression of cardiovascular disease in PE-exposed children.
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Affiliation(s)
- Michelle Renlund
- Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
| | - Tiina Jääskeläinen
- Medical and Clinical Genetics, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Anni Kivelä
- Medical and Clinical Genetics, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Seppo Heinonen
- Department of Obstetrics and Gynecology, Helsinki University Hospital, Helsinki, Finland
| | - Hannele Laivuori
- Medical and Clinical Genetics, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Obstetrics and Gynecology, Tampere University Hospital and Tampere University, Tampere, Finland
- Faculty of Medicine and Health Technology, Tampere Center for Child, Adolescent, and Maternal Health Research, Tampere, Finland
| | - Taisto Sarkola
- Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
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11
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Haroon S, Davenport A, Ling LH, Tai BC, Teo LLS, Schurgers L, Chen Z, Shroff R, Fischer DC, Khatri P, Low S, Tan JN, Chua HR, Teo BW, Ong CC, Subramanian S, Yeo XE, Wong WK, Lau TWL. Randomized Controlled Clinical Trial of the Effect of Treatment with Vitamin K2 on Vascular Calcification in Hemodialysis Patients (Trevasc-HDK). Kidney Int Rep 2023; 8:1741-1751. [PMID: 37705910 PMCID: PMC10496082 DOI: 10.1016/j.ekir.2023.06.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 05/03/2023] [Accepted: 06/12/2023] [Indexed: 09/15/2023] Open
Abstract
Introduction Vitamin K deficiency among patients on hemodialysis (HD) affects the function of matrix GLA protein (MGP), a potent vitamin K-dependent inhibitor of vascular calcification (VC). Methods We conducted a single-center randomized controlled trial (RCT) on maintenance HD patients to examine if vitamin K2 supplementation can reduce progression of coronary artery calcification (CAC) over an 18-month study period. Patients were randomized to vitamin K2 group receiving menaquinone-7360 μg 3 times/wk or control group. The primary outcome was CAC scores at the end of the study period. The secondary outcomes were aortic valve calcification (AVC), carotid-femoral pulse wave velocity (cfPWV), aortic augmentation index (AIx), dephosphorylated undercarboxylated MGP (dp-ucMGP) levels, major adverse cardiac events (MACE), and vascular access events. Results Of the 178 patients randomized, follow-up was completed for 138 patients. The CAC scores between the 2 groups were not statistically different at the end of 18 months (relative mean difference [RMD] 0.85, 95% CI 0.55-1.31). The secondary outcomes did not differ significantly in AVC (RMD 0.82, 95% CI 0.34-1.98), cfPWV (absolute mean difference [AMD] 0.55, 95% CI -0.50 to 1.60), and AIx (AMD 0.13, 95% CI -3.55 to 3.80). Supplementation with vitamin K2 did reduce dp-ucMGP levels (AMD -86, 95% CI -854 to -117). The composite outcome of MACE and mortality was not statistically different between the 2 groups (Hazard ratio = 0.98, 95% CI 0.50-1.94). Conclusion Our study did not demonstrate a beneficial effect of vitamin K2 in reducing progression of VC in this population at the studied dose and duration.
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Affiliation(s)
- Sabrina Haroon
- Division of Nephrology, University Medicine Cluster, National University Hospital Singapore, Singapore
| | - Andrew Davenport
- University College London Center for Nephrology, Royal Free Hospital, University College London, UK
| | - Lieng-Hsi Ling
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Bee-Choo Tai
- Saw Swee Hock School of Public Health, National University of Singapore, National University Health System, Singapore
| | - Lynette-Li-San Teo
- Department of Diagnostic Imaging, National University Hospital, Singapore
| | - Leon Schurgers
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, The Netherlands
| | - Zhaojin Chen
- Saw Swee Hock School of Public Health, National University of Singapore, National University Health System, Singapore
- Biostatistics Unit, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Rukshana Shroff
- UCL Great Ormond Street Hospital for Children NHS Foundation Trust, and Institute of Child Health, London, UK
| | | | - Priyanka Khatri
- Division of Nephrology, University Medicine Cluster, National University Hospital Singapore, Singapore
| | - Sanmay Low
- Division of Nephrology, University Medicine Cluster, National University Hospital Singapore, Singapore
| | - Jia-Neng Tan
- Division of Nephrology, University Medicine Cluster, National University Hospital Singapore, Singapore
| | - Horng-Ruey Chua
- Division of Nephrology, University Medicine Cluster, National University Hospital Singapore, Singapore
| | - Boon-Wee Teo
- Division of Nephrology, University Medicine Cluster, National University Hospital Singapore, Singapore
| | - Ching-Ching Ong
- Department of Diagnostic Imaging, National University Hospital, Singapore
| | - Srinivas Subramanian
- Division of Nephrology, University Medicine Cluster, National University Hospital Singapore, Singapore
| | - Xi-Er Yeo
- Division of Nephrology, University Medicine Cluster, National University Hospital Singapore, Singapore
| | - Weng-Kin Wong
- Division of Nephrology, University Medicine Cluster, National University Hospital Singapore, Singapore
| | - Titus-Wai-Leong Lau
- Division of Nephrology, University Medicine Cluster, National University Hospital Singapore, Singapore
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12
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Coppola JA, Gupta D, Lopez-Colon D, DeGroff C, Vyas HV. Elevated Aortic Stiffness after Pediatric Heart Transplantation. Pediatr Cardiol 2023:10.1007/s00246-023-03245-3. [PMID: 37535078 PMCID: PMC10837310 DOI: 10.1007/s00246-023-03245-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 07/20/2023] [Indexed: 08/04/2023]
Abstract
In adults, arterial stiffness has been linked to the development of target end-organ damage, thought to be related to abnormal transmission of pulse pressure. Increased arterial stiffness and endothelial dysfunction have been hypothesized to contribute to the development of microvascular dysfunction and coronary allograft vasculopathy (CAV), an important comorbidity after heart transplantation. However, little data exists regarding arterial stiffness in pediatric heart transplantation and its influence on development of coronary allograft vasculopathy is not well understood. We sought to assess aortic stiffness and distensibility in pediatric post-heart transplant patients. A prospective, observational study analyzing the ascending (donor tissue) and descending aorta (recipient tissue) using transthoracic echocardiographic M-mode measurements in patients aged < 21 years was conducted. Descending and ascending aorta M-modes were obtained from the subcostal long axis view, and the parasternal long axis view 3-5mm above the sinotubular junction, respectively. Two independent reviewers averaged measurements over 2-3 cardiac cycles, and Aortic Distensibility (AD) and Aortic Stiffness Index (ASI) were calculated using previously validated methods. We recruited 39 heart transplant (HT) patients and 47 healthy controls. Median end diastolic dimension of the ascending aorta (donor tissue) was significantly larger in the transplant group than the control group (1.92 cm vs. 1.74 cm, p = 0.01). Ascending aortic distensibility in post-transplant patients was significantly lower than in the control group (4.87 vs. 10.53, p < 0.001). Ascending aortic stiffness index was higher in the transplant patients compared to the controls (4.63 vs. 2.21, p < 0.001). There is evidence of altered ascending aortic distensibility and stiffness parameters in post-heart transplant patients. Further studies are required to assess its influence on complications like development of coronary artery vasculopathy.
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Affiliation(s)
- John-Anthony Coppola
- Congenital Heart Center, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL, USA
| | - Dipankar Gupta
- Congenital Heart Center, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL, USA.
| | - Dalia Lopez-Colon
- Congenital Heart Center, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL, USA
| | - Curt DeGroff
- Congenital Heart Center, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL, USA
| | - Himesh V Vyas
- Congenital Heart Center, Department of Pediatrics, University of Florida College of Medicine, Gainesville, FL, USA
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13
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Zhang X, Jiang Y, Liang F, Lu J. Threshold values of brachial cuff-measured arterial stiffness indices determined by comparisons with the brachial-ankle pulse wave velocity: a cross-sectional study in the Chinese population. Front Cardiovasc Med 2023; 10:1131962. [PMID: 37522090 PMCID: PMC10381930 DOI: 10.3389/fcvm.2023.1131962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 06/23/2023] [Indexed: 08/01/2023] Open
Abstract
Background Arterial Velocity-pulse Index (AVI) and Arterial Pressure-volume Index (API), measured by a brachial cuff, have been demonstrated to be indicative of arterial stiffness and correlated with the risk of cardiovascular events. However, the threshold values of AVI and API for screening increased arterial stiffness in the general population are yet to be established. Methods The study involved 860 subjects who underwent general physical examinations (M/F = 422/438, age 53.4 ± 12.7 years) and were considered to represent the general population in China. In addition to the measurements of AVI, API and brachial-ankle pulse wave velocity (baPWV), demographic information, arterial blood pressures, and data from blood and urine tests were collected. The threshold values of AVI and API were determined by receiver operating characteristic (ROC) analyses and covariate-adjusted ROC (AROC) analyses against baPWV, whose threshold for diagnosing high arterial stiffness was set at 18 m/s. Additional statistical analyses were performed to examine the correlations among AVI, API and baPWV and their correlations with other bio-indices. Results The area under the curve (AUC) values in ROC analysis for the diagnosis with AVI/API were 0.745/0.819, 0.788/0.837, and 0.772/0.825 (95% CI) in males, females, and all subjects, respectively. Setting the threshold values of AVI and API to 21 and 27 resulted in optimal diagnosis performance in the total cohort, whereas the threshold values should be increased to 24 and 29, respectively, in order to improve the accuracy of diagnosis in the female group. The AROC analyses revealed that the threshold values of AVI and API increased markedly with age and pulse pressure (PP), respectively. Conclusions With appropriate threshold values, AVI and API can be used to perform preliminary screening for individuals with increased arterial stiffness in the general population. On the other hand, the results of the AROC analyses imply that using threshold values adjusted for confounding factors may facilitate the refinement of diagnosis. Given the fact that the study is a cross-sectional one carried out in a single center, future multi-center or follow-up studies are required to further confirm the findings or examine the value of the threshold values for predicting cardiovascular events.
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Affiliation(s)
- Xujie Zhang
- Department of Engineering Mechanics, School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Yumin Jiang
- Physical Examination Center, Shanghai Sixth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fuyou Liang
- Department of Engineering Mechanics, School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, Shanghai, China
- World-Class Research Center “Digital biodesign and personalized healthcare”, Sechenov First Moscow State Medical University, Moscow, Russia
| | - Jianping Lu
- Physical Examination Center, Shanghai Sixth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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14
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Magkoutas K, Weisskopf M, Falk V, Emmert MY, Meboldt M, Cesarovic N, Schmid Daners M. Continuous Monitoring of Blood Pressure and Vascular Hemodynamic Properties With Miniature Extravascular Hall-Based Magnetic Sensor. JACC Basic Transl Sci 2023; 8:546-564. [PMID: 37325404 PMCID: PMC10264706 DOI: 10.1016/j.jacbts.2022.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/29/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Continuous measurement of vascular and hemodynamic parameters could improve monitoring of disease progression and enable timely clinical decision making and therapy surveillance in patients suffering from cardiovascular diseases. However, no reliable extravascular implantable sensor technology is currently available. Here, we report the design, characterization, and validation of an extravascular, magnetic flux sensing device capable of capturing the waveforms of the arterial wall diameter, arterial circumferential strain, and arterial pressure without restricting the arterial wall. The implantable sensing device, comprising a magnet and a magnetic flux sensing assembly, both encapsulated in biocompatible structures, has shown to be robust, with temperature and cyclic-loading stability. Continuous and accurate monitoring of arterial blood pressure and vascular properties was demonstrated with the proposed sensor in vitro with a silicone artery model and validated in vivo in a porcine model mimicking physiologic and pathologic hemodynamic conditions. The captured waveforms were further used to deduce the respiration frequency, the duration of the cardiac systolic phase, and the pulse wave velocity. The findings of this study not only suggest that the proposed sensing technology is a promising platform for accurate monitoring of arterial blood pressure and vascular properties, but also highlight the necessary changes in the technology and the implantation procedure to allow the translation of the sensing device in the clinical setting.
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Affiliation(s)
- Konstantinos Magkoutas
- Product Development Group Zurich, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Miriam Weisskopf
- Center for Surgical Research, University Hospital Zurich, University of Zurich, Zurich, Switzerland
| | - Volkmar Falk
- Department of Cardiothoracic and Vascular Surgery, Deutsches Herzzentrum der Charité (DHZC), Berlin, Germany
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- Translational Cardiovascular Technologies, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Maximilian Y. Emmert
- Department of Cardiothoracic and Vascular Surgery, Deutsches Herzzentrum der Charité (DHZC), Berlin, Germany
- Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
| | - Mirko Meboldt
- Product Development Group Zurich, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
| | - Nikola Cesarovic
- Department of Cardiothoracic and Vascular Surgery, Deutsches Herzzentrum der Charité (DHZC), Berlin, Germany
- Translational Cardiovascular Technologies, Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Marianne Schmid Daners
- Institute for Dynamic Systems and Control, Department of Mechanical and Process Engineering, ETH Zurich, Zurich, Switzerland
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15
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Miki Y, Tanaka A, Tokuda Y, Tobe A, Shirai Y, Yuhara S, Akita S, Furusawa K, Ishii H, Mutsuga M, Murohara T. Clinical implications of the cardio-ankle vascular index before and after transcatheter aortic valve implantation. J Cardiovasc Med (Hagerstown) 2023; 24:302-307. [PMID: 36938820 DOI: 10.2459/jcm.0000000000001456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
BACKGROUND Arterial stiffness indices are used to assess the material properties of the arterial wall and are associated with cardiovascular events. Aortic stenosis (AS) is commonly caused by degenerative calcification and can be associated with increased arterial stiffness. However, the clinical implications of arterial stiffness indices in AS patients before and after treatment are unknown. METHODS This single-center observational study enrolled 150 consecutive patients who underwent transcatheter aortic valve implantation (TAVI) for severe AS. The cardio-ankle vascular index (CAVI) was measured before and after TAVI. The patients were divided into two groups according to the CAVI values before and after TAVI: high CAVI group and low CAVI group. Patient and echocardiographic data and clinical outcomes, including cardiac death and hospitalization for heart failure (HF), were compared. RESULTS The pre- and postprocedural CAVI was 7.90 (6.75-9.30) and 9.65 (8.90-10.65), respectively. In the analyses with preprocedural CAVI, preprocedural echocardiographic aortic valve peak flow velocity was significantly lower in the high CAVI group. No significant differences between the two groups were observed in the occurrence of cardiac death or hospitalization for HF. In the analyses with postprocedural CAVI, B-type natriuretic peptide levels and E/e' ratio after TAVI were significantly higher in the high CAVI group. The composite of cardiac death and hospitalization occurrence for HF was significantly higher in the high CAVI group. CONCLUSION CAVI before TAVI is mainly affected by the AS severity, while CAVI after TAVI is associated with left ventricular diastolic dysfunction and late cardiac events, which may reflect arterial stiffness.
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Affiliation(s)
| | | | - Yoshiyuki Tokuda
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, Nagoya
| | | | | | - Satoshi Yuhara
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, Nagoya
| | - Sho Akita
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, Nagoya
| | | | - Hideki Ishii
- Department of Cardiology.,Department of Cardiology, Gunma University Graduate School of Medicine, Maebashi, Japan
| | - Masato Mutsuga
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, Nagoya
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16
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Zieff G, Stone K, Paterson C, Fryer S, Diana J, Blackwell J, Meyer ML, Stoner L. Pulse-wave velocity assessments derived from a simple photoplethysmography device: Agreement with a referent device. Front Cardiovasc Med 2023; 10:1108219. [PMID: 36824455 PMCID: PMC9941627 DOI: 10.3389/fcvm.2023.1108219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 01/23/2023] [Indexed: 02/10/2023] Open
Abstract
Objective Pulse-wave velocity (PWV), a common measure of arterial stiffness, can be measured continuously and across multiple body sites using photoplethysmography (PPG). The objective was to determine whether a simple photoplethysmography PPG PWV method agrees with a referent device. Approach Photoplethysmography heart-finger PWV (hfPWV) and heart-toe PWV (htPWV) were compared to oscillometric carotid-wrist PWV (cwPWV) and carotid-ankle PWV (caPWV) referent measurements, respectively. In 30 adults (24.6 ± 4.8 years, body mass index 25.2 ± 5.9 kg/m2, 18 female), three measurements were made: two supine baseline measurements (Base 1, Base 2) and one measurement (Tilt) 5 min after a modified head-up tilt test (mHUTT). Overall agreement and repeated measures agreement (change in PPG PWV from Base to Tilt vs. change in referent PWV from Base to Tilt) were calculated using linear mixed models. Agreement estimates were expressed as intra-class correlation coefficients (ICC). Main results For hfPWV there was strong overall agreement (ICC: 0.77, 95%CI: 0.67-0.85), but negligible and non-significant repeated measures agreement (ICC: 0.10, 95%CI: -0.18 to 0.36). For htPWV, there was moderate overall agreement (ICC:0.50, 95%CI: 0.31-0.65) and strong repeated measures agreement (ICC: 0.81, 95%CI: 0.69-0.89). Significance Photoplethysmography can continuously measure PWV at multiple arterial segments with moderate-strong overall agreement. While further work with upper-limb PPG PWV is needed, PPG can adequately capture acute changes in lower-limb PWV.
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Affiliation(s)
- Gabriel Zieff
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States,*Correspondence: Gabriel Zieff,
| | - Keeron Stone
- School of Sport and Exercise, University of Gloucestershire, Gloucester, United Kingdom
| | - Craig Paterson
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States,School of Sport and Exercise, University of Gloucestershire, Gloucester, United Kingdom
| | - Simon Fryer
- School of Sport and Exercise, University of Gloucestershire, Gloucester, United Kingdom
| | - Jake Diana
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Jade Blackwell
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States,Department of Physiology, The University of Arizona, Tucson, AZ, United States
| | - Michelle L. Meyer
- Department of Emergency Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Lee Stoner
- Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
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Hammoud A, Tikhomirov A, Briko A, Volkov A, Karapetyan A, Shchukin S. Evaluation of the Information Content for Determining the Vascular Tone Type of the Lower Extremities in Varicose Veins: A Case Study. BIOSENSORS 2023; 13:96. [PMID: 36671931 PMCID: PMC9855907 DOI: 10.3390/bios13010096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
The incidence of cardiovascular diseases is continuously increasing around the world. Therefore, the study of new methods for diagnosing cardiovascular diseases is very important. Early diagnosis and evaluation of the effectiveness of treatments are among the most important tasks. In this work, we study changes in vascular compliance and vascular tone of the lower extremities in a patient diagnosed with an early stage of varicose veins. The study is based on recording the bioimpedance signals of the lower extremities and their parts using the Rheo-32 multichannel device. Registration in the monitoring system takes place in two stages: the first in a state of relaxation, and the second after applying a local massage on one of the legs for five minutes. The results indicate a change in the type of vascular tone of the lower extremities after the massage, while the type of vascular tone changes and shifts on average towards the normotonic type. The method proposed in this study makes it possible to quantitatively and qualitatively assess changes in the tone of the vessels of the extremities.
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Affiliation(s)
- Ahmad Hammoud
- Department of Medical and Technical Information Technology, Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - Alexey Tikhomirov
- Department of Medical and Technical Information Technology, Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - Andrey Briko
- Department of Medical and Technical Information Technology, Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - Alexander Volkov
- Scientific and Educational Medical-Technological Center, Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - Aida Karapetyan
- Department of Medical and Technical Information Technology, Bauman Moscow State Technical University, 105005 Moscow, Russia
| | - Sergey Shchukin
- Department of Medical and Technical Information Technology, Bauman Moscow State Technical University, 105005 Moscow, Russia
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18
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Gavish B, Bursztyn M, Thijs L, Wei DM, Melgarejo JD, Zhang ZY, Boggia J, Hansen TW, Asayama K, Ohkubo T, Kikuya M, Yang WY, Stolarz-Skrzypek K, Malyutina S, Casiglia E, Lind L, Li Y, Kawecka-Jaszcz K, Filipovský J, Tikhonoff V, Gilis-Malinowska N, Dolan E, Sandoya E, Narkiewicz K, Wang JG, Imai Y, Maestre GE, O’Brien E, Staessen JA. Predictive power of 24-h ambulatory pulse pressure and its components for mortality and cardiovascular outcomes in 11 848 participants recruited from 13 populations. J Hypertens 2022; 40:2245-2255. [PMID: 35950994 PMCID: PMC10366954 DOI: 10.1097/hjh.0000000000003258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND The role of pulse pressure (PP) 'widening' at older and younger age as a cardiovascular risk factor is still controversial. Mean PP, as determined from repeated blood pressure (BP) readings, can be expressed as a sum of two components: 'elastic PP' (elPP) and 'stiffening PP' (stPP) associated, respectively, with stiffness at the diastole and its relative change during the systole. We investigated the association of 24-h ambulatory PP, elPP, and stPP ('PP variables') with mortality and composite cardiovascular events in different age classes. METHOD Longitudinal population-based cohort study of adults with baseline observations that included 24-h ambulatory BP. Age classes were age 40 or less, 40-50, 50-60, 60-70, and over 70 years. Co-primary endpoints were total mortality and composite cardiovascular events. The relative risk expressed by hazard ratio per 1SD increase for each of the PP variables was calculated from multivariable-adjusted Cox regression models. RESULTS The 11 848 participants from 13 cohorts (age 53 ± 16 years, 50% men) were followed for up for 13.7 ± 6.7 years. A total of 2946 participants died (18.1 per 1000 person-years) and 2093 experienced a fatal or nonfatal cardiovascular event (12.9 per 1000 person-years). Mean PP, elPP, and stPP were, respectively, 49.7, 43.5, and 6.2 mmHg, and elPP and stPP were uncorrelated ( r = -0.07). At age 50-60 years, all PP variables displayed association with risk for almost all outcomes. From age over 60 years to age over 70 years, hazard ratios of of PP and elPP were similar and decreased gradually but differently for pulse rate lower than or higher than 70 bpm, whereas stPP lacked predictive power in most cases. For age 40 years or less, elPP showed protective power for coronary events, whereas stPP and PP predicted stroke events. Adjusted and unadjusted hazard ratio variations were similar over the entire age range. CONCLUSION This study provides a new basis for associating PP components with outcome and arterial properties in different age groups and at different pulse rates for both old and young age. The similarity between adjusted and unadjusted hazard ratios supports the clinical usefulness of PP components but further studies are needed to assess the prognostic significance of the PP components, especially at the young age.
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Affiliation(s)
| | - Michael Bursztyn
- Faculty of Medicine Hebrew University, Jerusalem, Hypertension Clinic Hadassah Medical Center Mount-Scopus, Jerusalem and Department of Medicine D, Beilinson Hospital, Petach-Tikva, Israel
| | - Lutgarde Thijs
- Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium
| | - Dong-Mei Wei
- Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium
| | - Jesus D. Melgarejo
- Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium
- Laboratory of Neurosciences, Faculty of Medicine, University of Zulia, Maracaibo, Zulia, Venezuela
| | - Zhen-Yu Zhang
- Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium
| | - Jose Boggia
- Centro de Nefrología and Departamento de Fisiopatología, Hospital de Clínicas, Universidad de la República, Montevideo, Uruguay
| | - Tine W. Hansen
- Steno Diabetes Center Copenhagen, Gentofte and Research Centre for Prevention and Health, Capital Region of Denmark, Denmark
| | - Kei Asayama
- Research Unit Hypertension and Cardiovascular Epidemiology, KU Leuven Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium
- Department of Hygiene and Public Health, Teikyo University School of Medicine, Tokyo
- Tohoku Institute for Management of Blood Pressure, Sendai, Japan
| | - Takayoshi Ohkubo
- Department of Hygiene and Public Health, Teikyo University School of Medicine, Tokyo
- Tohoku Institute for Management of Blood Pressure, Sendai, Japan
| | - Masahiro Kikuya
- Department of Hygiene and Public Health, Teikyo University School of Medicine, Tokyo
| | - Wen-Yi Yang
- Department of Cardiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Katarzyna Stolarz-Skrzypek
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University Medical College, Kraków, Poland
| | - Sofia Malyutina
- Institute of Internal and Preventive Medicine, Internal and Preventive Medicine - Branch of the Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Science, Novosibirsk, Russian Federation
| | | | - Lars Lind
- Section of Geriatrics, Department of Public Health and Caring Sciences, Uppsala University, Uppsala, Sweden
| | - Yan Li
- Department of Cardiovascular Medicine, Shanghai Institute of Hypertension, Shanghai Key Laboratory of Hypertension, China
| | - Kalina Kawecka-Jaszcz
- First Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University Medical College, Kraków, Poland
| | - Jan Filipovský
- Faculty of Medicine, Charles University, Pilsen, Czech Republic
| | | | | | - Eamon Dolan
- Conway Institute, University College Dublin, Dublin, Ireland
- Stroke and Hypertension Unit, Blanchardstown, Dublin, Ireland
| | - Edgardo Sandoya
- Asociación Española Primera de Socorros Mutuos, Montevideo, Uruguay
| | | | - Ji-Guang Wang
- Department of Cardiovascular Medicine, Shanghai Institute of Hypertension, Shanghai Key Laboratory of Hypertension, China
| | - Yutaka Imai
- Tohoku Institute for Management of Blood Pressure, Sendai, Japan
| | - Gladys E. Maestre
- Department of Neurosciences and Department of Human Genetics, University of Texas Rio Grande Valley School of Medicine, Brownsville, Texas, USA
| | - Eoin O’Brien
- Conway Institute, University College Dublin, Dublin, Ireland
| | - Jan A. Staessen
- Research Institute Alliance for the Promotion of Preventive Medicine, Mechelen
- Biomedical Science Group, University of Leuven, Leuven, Belgium
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19
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Herbert R, Elsisy M, Rigo B, Lim HR, Kim H, Choi C, Kim S, Ye SH, Wagner WR, Chun Y, Yeo WH. Fully implantable batteryless soft platforms with printed nanomaterial-based arterial stiffness sensors for wireless continuous monitoring of restenosis in real time. NANO TODAY 2022; 46:101557. [PMID: 36855693 PMCID: PMC9970263 DOI: 10.1016/j.nantod.2022.101557] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Atherosclerosis is a common cause of coronary artery disease and a significant factor in broader cardiovascular diseases, the leading cause of death. While implantation of a stent is a prevalent treatment of coronary artery disease, a frequent complication is restenosis, where the stented artery narrows and stiffens. Although early detection of restenosis can be achieved by continuous monitoring, no available device offers such capability without surgeries. Here, we report a fully implantable soft electronic system without batteries and circuits, which still enables continuous wireless monitoring of restenosis in real-time with a set of nanomembrane strain sensors in an electronic stent. The low-profile system requires minimal invasive implantation to deploy the sensors into a blood vessel through catheterization. The entirely printed, nanomaterial-based set of soft membrane strain sensors utilizes a sliding mechanism to offer enhanced sensitivity and detection of low strain while unobtrusively integrating with an inductive stent for passive wireless sensing. The performance of the soft sensor platform is demonstrated by wireless monitoring of restenosis in an artery model and an ex-vivo study in a coronary artery of ovine hearts. The capacitive sensor-based artery implantation system offers unique advantages in wireless, real-time monitoring of stent treatments and arterial health for cardiovascular disease.
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Affiliation(s)
- Robert Herbert
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
- IEN Center for Human-Centric Interfaces and Engineering at the Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Moataz Elsisy
- Department of Industrial Engineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Bruno Rigo
- IEN Center for Human-Centric Interfaces and Engineering at the Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA 30332, USA
- School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Hyo-Ryoung Lim
- Major of Human Biocovergence, Division of Smart Healthcare, College of Information Technology and Convergence, Pukyong National University, Busan 48513, Republic of Korea
| | - Hyeonseok Kim
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
- IEN Center for Human-Centric Interfaces and Engineering at the Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Chanyeong Choi
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
- IEN Center for Human-Centric Interfaces and Engineering at the Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Seungil Kim
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Departments of Surgery, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Sang-Ho Ye
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Departments of Surgery, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - William R. Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Departments of Surgery, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Youngjae Chun
- Department of Industrial Engineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA 15260, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15260, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Woon-Hong Yeo
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
- IEN Center for Human-Centric Interfaces and Engineering at the Institute for Electronics and Nanotechnology, Georgia Institute of Technology, Atlanta, GA 30332, USA
- Wallace H. Coulter Department of Biomedical Engineering, Parker H. Petit Institute for Bioengineering and Biosciences, Georgia Institute of Technology, Atlanta, GA 30332, USA
- Institute for Materials, Neural Engineering Center, Institute for Robotics and Intelligent Machines, Georgia Institute of Technology, Atlanta, GA 30332, USA
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20
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Azukaitis K, Kirchner M, Doyon A, Litwin M, Bayazit A, Duzova A, Canpolat N, Jankauskiene A, Shroff R, Melk A, Querfeld U, Schaefer F. Arterial Stiffness and Chronic Kidney Disease Progression in Children. Clin J Am Soc Nephrol 2022; 17:1467-1476. [PMID: 36008353 PMCID: PMC9528270 DOI: 10.2215/cjn.02200222] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 07/27/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND AND OBJECTIVES CKD has been linked to increased arterial stiffness in adults, but data in children with CKD remain conflicting. We aimed to investigate the longitudinal dynamics and determinants of pulse wave velocity in children with CKD and its association with CKD progression. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS We performed an analysis of the Cardiovascular Comorbidity in Children with Chronic Kidney Disease (4C) study, which prospectively followed children aged 6-17 years with CKD stages 3-5. Follow-up was censored at the time of KRT initiation. Two separate analyses were performed: with absolute pulse wave velocity (primary outcome) and with pulse wave velocity standardized to height (z score; restricted to participants ≤17 years) as a sensitivity analysis. RESULTS In total, 667 patients with a mean baseline eGFR of 27 ml/min per 1.73 m2 were included. Pulse wave velocity above the 95th percentile was observed in 124 (20%) patients at baseline. Absolute pulse wave velocity increased gradually over the median follow-up of 2.7 (interquartile range, 0.7-4.4) years, whereas pulse wave velocity z score remained relatively stable. Absolute pulse wave velocity over time associated with time; older age; higher mean arterial pressure, LDL cholesterol, and albuminuria; and lower ferritin. Pulse wave velocity z score (n=628) was associated with the same variables and additionally, with higher diastolic BP z score, lower height z score, younger age, and girls. Of 628 patients, 369 reached the composite end point of CKD progression (50% eGFR loss, eGFR <10 ml/min per 1.73 m2, or the start of KRT) during a median follow-up of 2.4 (interquartile range, 0.9-4.6) years. Pulse wave velocity z score did not associate with CKD progression by univariable or multivariable proportional hazard analysis correcting for the established predictors eGFR, proteinuria, and BP. CONCLUSIONS Pulse wave velocity is increased in children with CKD but does not associate with eGFR or CKD progression.
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Affiliation(s)
- Karolis Azukaitis
- Clinic of Pediatrics, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Marietta Kirchner
- Institute of Medical Biometry and Informatics, University of Heidelberg, Heidelberg, Germany
| | - Anke Doyon
- Division of Pediatric Nephrology, Center for Pediatrics and Adolescent Medicine, Heidelberg University Hospital, Heidelberg, Germany
| | - Mieczysław Litwin
- Department of Nephrology and Arterial Hypertension, Children’s Memorial Health Institute, Warsaw, Poland
| | - Aysun Bayazit
- Department of Pediatric Nephrology, Cukurova University, Adana, Turkey
| | - Ali Duzova
- Division of Pediatric Nephrology, Faculty of Medicine, Hacettepe University, Ankara, Turkey
| | - Nur Canpolat
- Department of Pediatric Nephrology, Faculty of Medicine, Istanbul University Cerrahpasa, Istanbul, Turkey
| | - Augustina Jankauskiene
- Clinic of Pediatrics, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Rukshana Shroff
- Renal Unit, University College London Great Ormond Street Institute of Child Health, London, United Kingdom
| | - Anette Melk
- Department of Kidney, Liver and Metabolic Diseases, Hannover Medical School, Hannover, Germany
| | - Uwe Querfeld
- Department of Pediatric Gastroenterology, Nephrology and Metabolic Diseases, Charité–Universitätsmedizin Berlin, Berlin, Germany
| | - Franz Schaefer
- Division of Pediatric Nephrology, Center for Pediatrics and Adolescent Medicine, Heidelberg University Hospital, Heidelberg, Germany
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21
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Guest B, Arroyo L, Runciman J. A structural approach to 3D-printing arterial phantoms with physiologically comparable mechanical characteristics: Preliminary observations. Proc Inst Mech Eng H 2022; 236:1388-1402. [PMID: 35913071 PMCID: PMC9449448 DOI: 10.1177/09544119221114207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pulse wave behavior is important in cardiovascular pathophysiology and arterial
phantoms are valuable for studying arterial function. The ability of phantoms to
replicate complex arterial elasticity and anatomy is limited by available
materials and techniques. The feasibility of improving phantom performance using
functional structure designs producible with practical 3D printing technologies
was investigated. A novel corrugated wall approach to separate phantom function
from material properties was investigated with a series of designs printed from
polyester-polyurethane using a low-cost open-source fused filament fabrication
3D printer. Nonpulsatile pressure-diameter data was collected, and a mock
circulatory system was used to observe phantom pulse wave behavior and obtain
pulse wave velocities. The measured range of nonpulsatile Peterson elastic
strain modulus was 5.6–19 to 12.4–33.0 kPa over pressures of 5–35 mmHg for the
most to least compliant designs respectively. Pulse wave velocities of
1.5–5 m s−1 over mean pressures of 7–55 mmHg were observed,
comparing favorably to reported in vivo pulmonary artery measurements of
1–4 m s−1 across mammals. Phantoms stiffened with increasing
pressure in a manner consistent with arteries, and phantom wall elasticity
appeared to vary between designs. Using a functional structure approach,
practical low-cost 3D-printed production of simple arterial phantoms with
mechanical properties that closely match the pulmonary artery is possible.
Further functional structure design development to expand the pressure range and
physiologic utility of dir"ectly 3D-printed phantoms appears warranted.
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Affiliation(s)
- Bruce Guest
- School of Engineering, University of Guelph, Guelph, ON, Canada
- Ontario Veterinary College Health Sciences Centre, University of Guelph, Guelph, ON, Canada
| | - Luis Arroyo
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - John Runciman
- School of Engineering, University of Guelph, Guelph, ON, Canada
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22
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Sherman SR, Lefferts WK, Lefferts EC, Grigoriadis G, Lima NS, Fernhall B, Baynard T, Rosenberg AJ. The effect of aging on carotid artery wall mechanics during maximal resistance exercise. Eur J Appl Physiol 2022; 122:2477-2488. [PMID: 36008691 DOI: 10.1007/s00421-022-05016-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 07/29/2022] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Age-related stiffening of the large elastic arteries (e.g., common carotid artery [CCA]) may impair wall dynamics (i.e., strain) and amplify transmission of pulsatile blood flow into the brain with large increases in pressure that occur during maximal resistance exercise (RE). The purpose of this study was to compare CCA arterial wall dynamics, central hemodynamics, and cerebral blood velocity responses during maximal RE between young and older adults. METHODS Thirty-one young (YA; 26 ± 5 yrs; 23.8 ± 3.3 kg/m2) and 25 older adults (OA; 60 ± 6 yrs; 30.0 ± 5.5 kg/m2) performed a unilateral maximal isokinetic knee flexion/extension exercise protocol (i.e., maximal RE). All measures were recorded at baseline and during the last 10 s of maximal RE. Common carotid artery strain, CCA strain time to peak, and CCA strain rate (i.e., variables of arterial wall dynamics) were analyzed using 2D speckle tracking software from circumferential ultrasound images. Transcranial Doppler was used to measure right middle cerebral artery (MCA) blood velocity. Non-invasive arterial blood pressure measurements were obtained using finger photoplethysmography. RESULTS Older adults had greater reductions in CCA strain time to peak from baseline to maximal RE (345 ± 39 to 242 ± 52 ms) than YA (308 ± 35 to 247 ± 42 ms; interaction effect, p < 0.01). MCA velocity was similar between YA and OA during maximal RE (p = 0.48), despite a greater arterial pressor response in OA (p < 0.01). CONCLUSION These data suggest cerebral blood velocity responds similarly during maximal RE among OA compared to YA, despite subtle age-related differences in the pressor and extracranial vascular response during maximal RE.
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Affiliation(s)
- Sara R Sherman
- Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Wesley K Lefferts
- Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, USA.,Clinical Vascular Research Laboratory, Department of Kinesiology, Iowa State University, Ames, IA, USA
| | - Elizabeth C Lefferts
- Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, USA.,Clinical Vascular Research Laboratory, Department of Kinesiology, Iowa State University, Ames, IA, USA
| | - Georgios Grigoriadis
- Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Natalia S Lima
- Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Bo Fernhall
- Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Tracy Baynard
- Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - Alexander J Rosenberg
- Integrative Physiology Laboratory, College of Applied Health Sciences, University of Illinois at Chicago, Chicago, IL, USA. .,Cerebral and Cardiovascular Physiology Laboratory, University of North Texas Health Science Center at Fort Worth, Fort Worth, TX, USA. .,Department of Physiology, Midwestern University, Downers Grove, IL, USA.
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23
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Bracamonte JH, Wilson JS, Soares JS. Quantification of the heterogeneous effect of static and dynamic perivascular structures on patient-specific local aortic wall mechanics using inverse finite element modeling and DENSE MRI. J Biomech 2022; 138:111119. [PMID: 35576631 PMCID: PMC9536506 DOI: 10.1016/j.jbiomech.2022.111119] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 11/30/2022]
Abstract
Recent studies have highlighted the relevance of perivascular interactions on aortic wall mechanics. Most of the approaches assume static perivascular structures; however, the beating heart dynamically displaces the neighboring aorta. We develop a model to account for the effect of periaortic interactions due to static and dynamic structures by prescribing a moving elastic foundation boundary condition (EFBC) embedded into an inverse finite element algorithm using in vivo displacements from 2D displacement encoding with stimulated echoes (DENSE) MRI as target data. We applied this method at three different locations of interest, the distal aortic arch (DAA), descending thoracic aorta (DTA), and infrarenal abdominal aorta (IAA) for a total of 27 cases in healthy humans. The model reproduces the target diastole-to-systole deformation and bulk displacement of the aortic wall with median displacement errors below 0.5mm. The EFBC showed good agreement with the location of anatomical features and was consistent among individuals of similar characteristics. Results show that an energy source acting on the adventitia is required to reproduce the displacements measured at the vicinity of the heart, but not at the abdomen. The average adventitial load as a percentage of the luminal pulse-pressure was found to increase with age and to decrease along the descending aorta, from 61% at the DAA to 37% at the DTA, and 30% at the IAA. This approach offers a patient-specific method to estimate in vivo adventitial loads and aortic wall stiffness, which can bring a better understanding of normal and pathological in vivo aortic function.
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Affiliation(s)
- Johane H Bracamonte
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, 401 West Main Street, Richmond, VA 23284, United States.
| | - John S Wilson
- Department of Biomedical Engineering & Pauley Heart Center, Virginia Commonwealth University, 601 West Main Street, Richmond, VA 23284, United States.
| | - Joao S Soares
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, 401 West Main Street, Richmond, VA 23284, United States.
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24
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Li GY, Jiang Y, Zheng Y, Xu W, Zhang Z, Cao Y. Arterial Stiffness Probed by Dynamic Ultrasound Elastography Characterizes Waveform of Blood Pressure. IEEE TRANSACTIONS ON MEDICAL IMAGING 2022; 41:1510-1519. [PMID: 34995186 DOI: 10.1109/tmi.2022.3141613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The clinical and economic burdens of cardiovascular diseases pose a global challenge. Growing evidence suggests an early assessment of arterial stiffness can provide insights into the pathogenesis of cardiovascular diseases. However, it remains difficult to quantitatively characterize local arterial stiffness in vivo. Here we utilize guided axial waves continuously excited and detected by ultrasound to probe local blood pressures and mechanical properties of common carotid arteries simultaneously. In a pilot study of 17 healthy volunteers, we observe a ∼ 20 % variation in the group velocities of the guided axial waves (5.16 ± 0.55 m/s in systole and 4.31 ± 0.49 m/s in diastole) induced by the variation of the blood pressures. A linear relationship between the square of group velocity and blood pressure is revealed by the experiments and finite element analysis, which enables us to measure the waveform of the blood pressures by the group velocities. Furthermore, we propose a wavelet analysis-based method to extract the dispersion relations of the guided axial waves. We then determined the shear modulus by fitting the dispersion relations in diastole with the leaky Lamb wave model. The average shear modulus of all the volunteers is 166.3 ± 32.8 kPa. No gender differences are found. This study shows the group velocity and dispersion relation of the guided axial waves can be utilized to probe blood pressure and arterial stiffness locally in a noninvasive manner and thus promising for early diagnosis of cardiovascular diseases.
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25
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Jiang Y, Zheng Y, Li GY, Zhang Z, Yin Z, Xu W, Cao Y. Probing the Mechanical Properties of Large Arteries by Measuring Their Deformation In Vivo with Ultrasound. ULTRASOUND IN MEDICINE & BIOLOGY 2022; 48:1033-1044. [PMID: 35292176 DOI: 10.1016/j.ultrasmedbio.2022.01.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 01/09/2022] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
Aging and cardiovascular diseases (CVDs) may alter the microstructures of arteries and hence their mechanical properties. Therefore, the measurement of intrinsic artery mechanical properties in vivo can provide valuable information in understanding aging and CVDs and is of clinical significance. The accuracy of advanced ultrasound imaging techniques in measuring the deformation of large arteries under blood pressure is good. However, the assessment of arterial stiffness in vivo remains a challenge. An inverse method to infer the constitutive parameters of arteries in vivo from the blood pressure-arterial radius relationship (P-r curve) is proposed here. The stability analysis reveals that a key constitutive parameter, bθ, which measures the circumferential hardening of an artery, can be reliably identified. An in vivo experiment was performed on the common carotid arteries of 41 healthy volunteers (age: 37 ± 17 y). The value of bθ varies significantly (from 0.55 ± 0.15 for the young group to 0.93 ± 0.29 for the older group, p < 0.01) and is positively correlated with age (r = 0.673, p < 0.01). Furthermore, our theoretical analysis and experimental study have revealed a strong correlation between the clinic-used stiffness index β and bθ. This study shows that the arterial material parameter bθ can be measured in vivo, which makes it promising as a new biomarker in the diagnosis of CVDs.
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Affiliation(s)
- Yuxuan Jiang
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing, China
| | - Yang Zheng
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing, China
| | - Guo-Yang Li
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing, China
| | - Zhaoyi Zhang
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing, China
| | - Ziying Yin
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing, China
| | - Weiqiang Xu
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing, China
| | - Yanping Cao
- Institute of Biomechanics and Medical Engineering, AML, Department of Engineering Mechanics, Tsinghua University, Beijing, China.
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26
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Malhotra R, Nicholson CJ, Wang D, Bhambhani V, Paniagua S, Slocum C, Sigurslid HH, Cardenas CLL, Li R, Boerboom SL, Chen YC, Hwang SJ, Yao C, Ichinose F, Bloch DB, Lindsay ME, Lewis GD, Aragam JR, Hoffmann U, Mitchell GF, Hamburg NM, Vasan RS, Benjamin EJ, Larson MG, Zapol WM, Cheng S, Roh JD, O’Donnell CJ, Nguyen C, Levy D, Ho JE. Matrix Gla Protein Levels Are Associated With Arterial Stiffness and Incident Heart Failure With Preserved Ejection Fraction. Arterioscler Thromb Vasc Biol 2022; 42:e61-e73. [PMID: 34809448 PMCID: PMC8792238 DOI: 10.1161/atvbaha.121.316664] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Arterial stiffness is a risk factor for cardiovascular disease, including heart failure with preserved ejection fraction (HFpEF). MGP (matrix Gla protein) is implicated in vascular calcification in animal models, and circulating levels of the uncarboxylated, inactive form of MGP (ucMGP) are associated with cardiovascular disease-related and all-cause mortality in human studies. However, the role of MGP in arterial stiffness is uncertain. Approach and Results: We examined the association of ucMGP levels with vascular calcification, arterial stiffness including carotid-femoral pulse wave velocity (PWV), and incident heart failure in community-dwelling adults from the Framingham Heart Study. To further investigate the link between MGP and arterial stiffness, we compared aortic PWV in age- and sex-matched young (4-month-old) and aged (10-month-old) wild-type and Mgp+/- mice. Among 7066 adults, we observed significant associations between higher levels of ucMGP and measures of arterial stiffness, including higher PWV and pulse pressure. Longitudinal analyses demonstrated an association between higher ucMGP levels and future increases in systolic blood pressure and incident HFpEF. Aortic PWV was increased in older, but not young, female Mgp+/- mice compared with wild-type mice, and this augmentation in PWV was associated with increased aortic elastin fiber fragmentation and collagen accumulation. CONCLUSIONS This translational study demonstrates an association between ucMGP levels and arterial stiffness and future HFpEF in a large observational study, findings that are substantiated by experimental studies showing that mice with Mgp heterozygosity develop arterial stiffness. Taken together, these complementary study designs suggest a potential role of therapeutically targeting MGP in HFpEF.
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Affiliation(s)
- Rajeev Malhotra
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Christopher J. Nicholson
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Dongyu Wang
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Vijeta Bhambhani
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Samantha Paniagua
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Charles Slocum
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Haakon H. Sigurslid
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Christian L. Lino Cardenas
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Rebecca Li
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Sophie L. Boerboom
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Yin-Ching Chen
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts, USA, and Schepens Eye Research Institute/Massachusetts Eye and Ear Infirmary, Harvard Medical School, Cambridge, Massachusetts, USA
| | - Shih-Jen Hwang
- Framingham Heart Study, Framingham, MA
- Population Sciences Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Chen Yao
- Framingham Heart Study, Framingham, MA
- Population Sciences Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Fumito Ichinose
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Donald B. Bloch
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA
- Division of Rheumatology, Allergy, and Immunology; Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Mark E. Lindsay
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | - Gregory D. Lewis
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | | | - Udo Hoffmann
- Department of Radiology, Massachusetts General Hospital, Boston, MA
| | | | - Naomi M. Hamburg
- Evans Department of Medicine and Whitaker Cardiovascular Institute, Boston University School of Medicine, Boston, MA
| | - Ramchandran S. Vasan
- Framingham Heart Study, Framingham, MA
- Department of Epidemiology, Boston University School of Public Health & Sections of Preventive Medicine and Epidemiology and Cardiology, Department of Medicine, Boston University School of Medicine, Boston, MA
| | - Emelia J. Benjamin
- Framingham Heart Study, Framingham, MA
- Department of Epidemiology, Boston University School of Public Health & Sections of Preventive Medicine and Epidemiology and Cardiology, Department of Medicine, Boston University School of Medicine, Boston, MA
| | - Martin G. Larson
- Framingham Heart Study, Framingham, MA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA
| | - Warren M. Zapol
- Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Susan Cheng
- Framingham Heart Study, Framingham, MA
- Barbara Streisand Women’s Heart Center, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA
| | - Jason D. Roh
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
| | | | - Christopher Nguyen
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Charlestown, Massachusetts, USA, and Schepens Eye Research Institute/Massachusetts Eye and Ear Infirmary, Harvard Medical School, Cambridge, Massachusetts, USA
| | - Daniel Levy
- Framingham Heart Study, Framingham, MA
- Population Sciences Branch, Division of Intramural Research, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD
| | - Jennifer E. Ho
- Cardiovascular Research Center and Corrigan Minehan Heart Center, Division of Cardiology, Department of Medicine, Massachusetts General Hospital, Boston, MA
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27
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Wang D, Chayer B, Destrempes F, Gesnik M, Tournoux F, Cloutier G. Deformability of ascending thoracic aorta aneurysms assessed using ultrafast ultrasound and a principal strain estimator: In vitro evaluation and in vivo feasibility. Med Phys 2022; 49:1759-1775. [PMID: 35045186 DOI: 10.1002/mp.15464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Noninvasive vascular strain imaging under conventional line-by-line scanning has a low frame rate and lateral resolution, and depends on the coordinate system. It is thus affected by high deformations due to image decorrelation between frames. PURPOSE To develop an ultrafast time-ensemble regularized tissue-Doppler optical-flow principal strain estimator for aorta deformability assessment in a long-axis view. METHODS This approach alleviated the impact of lateral resolution using image compounding and that of the coordinate system dependency using principal strain. Accuracy and feasibility were evaluated in two aorta-mimicking phantoms first, and then in four age-matched individuals with either a normal aorta or a pathological ascending thoracic aorta aneurysm (TAA). RESULTS Instantaneous aortic maximum and minimum principal strain maps and regional accumulated strains during each cardiac cycle were estimated at systolic and diastolic phases to characterize the normal aorta and TAA. In vitro, principal strain results matched sonomicrometry measurements. In vivo, a significant decrease in maximum and minimum principal strains was observed in TAA cases, whose range was respectively 7.9 ± 6.4% and 8.2 ± 2.6% smaller than in normal aortas. CONCLUSIONS The proposed principal strain estimator showed an ability to potentially assess TAA deformability, which may provide an individualized and reliable evaluation method for TAA rupture risk assessment. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Diya Wang
- School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, 71049, P. R. China.,Laboratory of Biorheology and Medical Ultrasonics, Research Center, University of Montreal Hospital, Montreal, QC, H2×0A9, Canada
| | - Boris Chayer
- Laboratory of Biorheology and Medical Ultrasonics, Research Center, University of Montreal Hospital, Montreal, QC, H2×0A9, Canada
| | - François Destrempes
- Laboratory of Biorheology and Medical Ultrasonics, Research Center, University of Montreal Hospital, Montreal, QC, H2×0A9, Canada
| | - Marc Gesnik
- Laboratory of Biorheology and Medical Ultrasonics, Research Center, University of Montreal Hospital, Montreal, QC, H2×0A9, Canada
| | - François Tournoux
- Laboratory of Biorheology and Medical Ultrasonics, Research Center, University of Montreal Hospital, Montreal, QC, H2×0A9, Canada.,Department of Cardiology, Echocardiography Laboratory, University of Montreal Hospital, Montreal, QC, H2×0A9, Canada
| | - Guy Cloutier
- Laboratory of Biorheology and Medical Ultrasonics, Research Center, University of Montreal Hospital, Montreal, QC, H2×0A9, Canada.,Department of Radiology, Radio-Oncology and Nuclear Medicine, and Institute of Biomedical Engineering, University of Montreal, Montreal, QC, H3C 3J7, Canada
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28
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Olander RFW, Sundholm JKM, Suonsyrjä S, Sarkola T. Arterial health during early childhood following abnormal fetal growth. BMC Pediatr 2022; 22:40. [PMID: 35031019 PMCID: PMC8759262 DOI: 10.1186/s12887-021-02951-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/13/2021] [Indexed: 12/11/2022] Open
Abstract
Background Abnormal fetal growth is associated with increased cardiovascular risk in adulthood. We investigated the effect of fetal programming on arterial health and morphology during early childhood. Methods We examined 90 children (median age 5.81 years, interquartile range: 5.67; 5.95), born small for gestational age with fetal growth restriction, large or appropriate for gestational age (SGA, N = 23, LGA, N = 19, AGA N = 48). We measured body composition, anthropometrics, blood pressure, pulse wave velocity (PWV), lipids, glucose and inflammatory markers, and assessed carotid, brachial, radial and femoral arterial morphology and stiffness using very-high resolution ultrasound (46–71 MHz). Results LGA showed increased anthropometry, lean body mass and body mass index. SGA displayed decreased anthropometry and lean body mass. Blood pressure, PWV, carotid artery stiffness and blood work did not differ groupwise. Differences in lumen diameters, intima-media thicknesses (IMT) and adventitia thicknesses disappeared when adjusted for lean body mass and sex. In multiple regression models arterial dimensions were mainly predicted by lean body mass, with birth weight remaining associated only with carotid and brachial lumen dimensions, and not with IMTs. Carotid-femoral PWV was predicted by height and blood pressure only. No independent effect of adiposity was observed. Conclusions Arterial dimensions in childhood associate with current anthropometrics, especially lean body mass, and sex, explaining differences in arterial layer thickness. We found no signs of fetal programming of cardiovascular risk or arterial health in early childhood. Supplementary Information The online version contains supplementary material available at 10.1186/s12887-021-02951-2.
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Affiliation(s)
- Rasmus F W Olander
- Children's Hospital, Pediatric Research Center, University of Helsinki, and Helsinki University Hospital, Stenbäckinkatu 9, POB 347, FIN-00029, Helsinki, Finland. .,Minerva Foundation Institute for Medical Research, Helsinki, Finland.
| | - Johnny K M Sundholm
- Children's Hospital, Pediatric Research Center, University of Helsinki, and Helsinki University Hospital, Stenbäckinkatu 9, POB 347, FIN-00029, Helsinki, Finland.,Minerva Foundation Institute for Medical Research, Helsinki, Finland
| | - Sanna Suonsyrjä
- Children's Hospital, Pediatric Research Center, University of Helsinki, and Helsinki University Hospital, Stenbäckinkatu 9, POB 347, FIN-00029, Helsinki, Finland.,Minerva Foundation Institute for Medical Research, Helsinki, Finland
| | - Taisto Sarkola
- Children's Hospital, Pediatric Research Center, University of Helsinki, and Helsinki University Hospital, Stenbäckinkatu 9, POB 347, FIN-00029, Helsinki, Finland.,Minerva Foundation Institute for Medical Research, Helsinki, Finland
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29
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Abstract
Arterial compliance is an important cardiovascular parameter characterizing mechanical and structural properties of arteries and significantly influencing ventricular-arterial coupling. Decreased arterial compliance is associated with several physiological states and pathological processes. Furthermore, arterial compliance is influenced by other cardiovascular parameters even at short time scales. Today, there are numerous noninvasive methods of estimation arterial compliance in vivo introducing some level of confusion about selection of the best method for particular application and measurement setting. In this review, the most common noninvasive methods of arterial compliance estimation are summarized, discussed and categorized. Finally, interpretation of estimated arterial compliance in the context of other possible confounders is discussed.
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Affiliation(s)
- D Švec
- Comenius University in Bratislava, Jessenius Faculty of Medicine in Martin, Department of Physiology, Martin, Slovakia.
| | - M Javorka
- Comenius University in Bratislava, Jessenius Faculty of Medicine in Martin, Department of Physiology, Martin, Slovakia
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30
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Gauci S, Young LM, White DJ, Reddan JM, Lassemillante AC, Meyer D, Pipingas A, Scholey A. Diet May Moderate the Relationship Between Arterial Stiffness and Cognitive Performance in Older Adults. J Alzheimers Dis 2021; 85:815-828. [PMID: 34864661 PMCID: PMC8842781 DOI: 10.3233/jad-210567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Cognitive decline is influenced by various factors including diet, cardiovascular disease, and glucose control. However, the combined effect of these risk factors on cognitive performance is yet to be fully understood. OBJECTIVE The current study aimed to explore the inter-relationship between these risk factors and cognitive performance in older adults at risk of future cognitive decline. METHODS The sample comprised 163 (Age: M = 65.23 years, SD = 6.50) participants. Food Frequency Questionnaire data was used to score diet quality and adherence to the Western Style Diet (WSD) and Prudent Style Diet (PSD). Glucose control was gauged by serum levels of glycated hemoglobin (HbA1c) and arterial stiffness was measured using carotid to femoral pulse wave velocity. Cognitive performance was assessed using two subtests of the Swinburne University Computerized Cognitive Assessment Battery (SUCCAB) and Rey's Verbal Learning Test (RVLT). RESULTS Diet quality, adherence to the WSD or PSD, and glucose control were not significantly related to cognitive outcomes. However, a significant negative association was found between arterial stiffness and the spatial working memory subtest of SUCCAB (β= -0.21, p < 0.05). Arterial stiffness also significantly interacted with the PSD to impact total recall (F change (1,134) = 5.37, p < 0.05) and the composite score of RVLT (F change (1,134) = 4.03, p < 0.05). CONCLUSION In this sample of older adults at risk of cognitive decline, diet alone was not found to predict cognitive performance; however, it was found to moderate the relationship between arterial stiffness and cognition.
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Affiliation(s)
- Sarah Gauci
- Centre for Human Psychopharmacology, Swinburne University, Melbourne, VIC, Australia.,Heart and Mind Research, School of Medicine, Deakin University, Barwon Health, Geelong, Australia
| | - Lauren M Young
- Centre for Human Psychopharmacology, Swinburne University, Melbourne, VIC, Australia.,Food and Mood Centre, School of Medicine, Deakin University, Barwon Health, Geelong, Australia
| | - David J White
- Centre for Human Psychopharmacology, Swinburne University, Melbourne, VIC, Australia
| | - Jeffery M Reddan
- Centre for Human Psychopharmacology, Swinburne University, Melbourne, VIC, Australia
| | - Annie-Claude Lassemillante
- Department of Nursing and Allied Health, Faculty of Health, Arts and Design, Swinburne University, Melbourne, VIC, Australia
| | - Denny Meyer
- Department of Health Science and Biostatistics, Centre for Mental Health, Swinburne University, Melbourne, VIC, Australia
| | - Andrew Pipingas
- Centre for Human Psychopharmacology, Swinburne University, Melbourne, VIC, Australia
| | - Andrew Scholey
- Centre for Human Psychopharmacology, Swinburne University, Melbourne, VIC, Australia.,Nutrition Dietetics and Food, School of Clinical Sciences, Monash University, Melbourne, Australia
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31
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Goodman R, Chirinos JA, Ky B, Mazurek JA, Smith KA, Palevsky HI, Fritz JS, Pugliese SC, Kawut SM, Al-Naamani N. Systemic arterial properties in pulmonary hypertension. Pulm Circ 2021; 11:20458940211055684. [PMID: 34804490 PMCID: PMC8597072 DOI: 10.1177/20458940211055684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Randi Goodman
- Division of Pulmonary, Allergy and Critical Care, University of Pennsylvania, Philadelphia, PA, USA
| | - Julio A Chirinos
- Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Bonnie Ky
- Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jeremy A Mazurek
- Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Kerri Akaya Smith
- Division of Pulmonary, Allergy and Critical Care, University of Pennsylvania, Philadelphia, PA, USA
| | - Harold I Palevsky
- Division of Pulmonary, Allergy and Critical Care, University of Pennsylvania, Philadelphia, PA, USA
| | - Jason S Fritz
- Division of Pulmonary, Allergy and Critical Care, University of Pennsylvania, Philadelphia, PA, USA
| | - Steven C Pugliese
- Division of Pulmonary, Allergy and Critical Care, University of Pennsylvania, Philadelphia, PA, USA
| | - Steven M Kawut
- Division of Pulmonary, Allergy and Critical Care, University of Pennsylvania, Philadelphia, PA, USA
| | - Nadine Al-Naamani
- Division of Pulmonary, Allergy and Critical Care, University of Pennsylvania, Philadelphia, PA, USA
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32
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Azukaitis K, Jankauskiene A, Schaefer F, Shroff R. Pathophysiology and consequences of arterial stiffness in children with chronic kidney disease. Pediatr Nephrol 2021; 36:1683-1695. [PMID: 32894349 DOI: 10.1007/s00467-020-04732-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 07/16/2020] [Accepted: 07/28/2020] [Indexed: 12/20/2022]
Abstract
Changes in arterial structure and function are seen early in the course of chronic kidney disease (CKD) and have been causally associated with cardiovascular (CV) morbidity. Numerous potential injuries encompassing both traditional and uremia-specific CV risk factors can induce structural arterial changes and accelerate arterial stiffening. When the buffering capacity of the normally elastic arteries is reduced, damage to vulnerable microcirculatory beds can occur. Moreover, the resultant increase to cardiac afterload contributes to the development of left ventricular hypertrophy and cardiac dysfunction. Adult studies have linked arterial stiffness with increased risk of mortality, CV events, cognitive decline, and CKD progression. Pulse wave velocity (PWV) is currently the gold standard of arterial stiffness assessment but its measurement in children is challenging due to technical difficulties and physiologic aspects related to growth and poor standardization between algorithms for calculating PWV. Nevertheless, studies in pediatric CKD have reported increased arterial stiffness in children with advanced CKD, on dialysis, and after kidney transplantation. Development of arterial stiffness in children with CKD is closely related to mineral-bone disease and hypertension, but other factors may also play a significant role. The clinical relevance of accelerated arterial stiffness in childhood on cardiovascular outcomes in adult life remains unclear, and prospective studies are needed. In this review we discuss mechanisms leading to arterial stiffness in CKD and its clinical implications, along with issues surrounding the technical aspects of arterial stiffness assessment in children.
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Affiliation(s)
- Karolis Azukaitis
- Clinic of Pediatrics, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Santariskiu 4, 08406, Vilnius, Lithuania.
| | - Augustina Jankauskiene
- Clinic of Pediatrics, Institute of Clinical Medicine, Faculty of Medicine, Vilnius University, Santariskiu 4, 08406, Vilnius, Lithuania
| | - Franz Schaefer
- Division of Pediatric Nephrology, Center for Pediatrics and Adolescent Medicine, Heidelberg University, Heidelberg, Germany
| | - Rukshana Shroff
- Great Ormond Street Hospital for Children NHS Foundation Trust, University College London, Institute of Child Health, London, UK
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33
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Lamacchia O, Sorrentino MR. Diabetes Mellitus, Arterial Stiffness and Cardiovascular Disease: Clinical Implications and the Influence of SGLT2i. Curr Vasc Pharmacol 2021; 19:233-240. [PMID: 32183678 DOI: 10.2174/1570161118666200317150359] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/03/2020] [Accepted: 03/04/2020] [Indexed: 12/20/2022]
Abstract
Type 2 diabetes mellitus (T2DM) is a rapidly evolving global health issue associated with a markedly increased risk of cardiovascular (CV) morbidity and mortality. The hyperglycaemic milieu contributes to the development of CV complications via several pathological pathways, leading to increased arterial stiffness (AS), that can be considered as a predictor of CV events in patients with diabetes. The measurement of AS is increasingly used for the clinical assessment of patients. Several methodologies were used in extensive population studies to assess AS; the most commonly used is the pulse wave velocity (PWV). The cardio-ankle vascular index (CAVI) was developed to measure AS; it is not affected by blood pressure at the time of measurement and shows stable values in healthy persons for years. There are several potential pharmacological and non-pharmacological interventions aiming to reduce AS. Recent evidence from clinical trials suggests that newer antidiabetic drugs do not only exert glycaemic-lowering properties but also decrease CV risk. In this context, sodium glucose cotransporter- 2 inhibitors (SGLT2i) ( empagliflozin, canagliflozin and dapagliflozin) significantly reduced the risk of CV and all-cause mortality (only EMPA-REG OUTCOME study) and hospitalization for heart failure in patients with T2DM with established CV disease and/or with CV risk factors. Improved endothelial function and AS probably represents one of the mechanisms by which these drugs exert their beneficial effects. The present review aimed both to describe the association between AS and T2DM and to discuss the effectiveness of SGLT2i on vascular endothelial dysfunction and AS.
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Affiliation(s)
- Olga Lamacchia
- Unit of Endocrinology, Department of Medical and Surgical Sciences, University of Foggia, via Luigi Pinto, 1, 71122 Foggia, Italy
| | - Maria Rosaria Sorrentino
- Unit of Endocrinology, Department of Medical and Surgical Sciences, University of Foggia, via Luigi Pinto, 1, 71122 Foggia, Italy
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34
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Xiong J, Qian Y, Yu S, Ji H, Teliewubai J, Chi C, Lu Y, Zhou Y, Fan X, Li J, Blacher J, Zhang Y, Xu Y. Somatotype and Its Impact on Asymptomatic Target Organ Damage in the Elderly Chinese: The Northern Shanghai Study. Clin Interv Aging 2021; 16:887-895. [PMID: 34054294 PMCID: PMC8153068 DOI: 10.2147/cia.s302468] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 04/13/2021] [Indexed: 11/23/2022] Open
Abstract
Objective To investigate the relationship between asymptomatic target organ damage (TOD) and different somatotypes in a population of elderly from Chinese community-dwelling. Methods A total of 2098 Chinese senior residents from northern Shanghai older than 65 years were recruited in the research. The following somatotype parameters were recorded and analyzed: body mass index, waist circumference, hip circumference, and waist-hip ratio were recorded and calculated. Asymptomatic TOD, including urine albumin/creatinine ratio, estimated glomerular filtration rate (eGFR), intima-media thickness (IMT), left ventricular mass index (LVMI), left ventricular diastolic function, and carotid-femoral pulse wave velocity (PWV) was recorded using the MyLab30 Gold CV system and SphygmoCor. Results Of all 2098 residents, 817 (38.9%) were overweight and 289 (13.8%) were obese. All somatotype measures were significantly correlated with TOD parameters (p<0.05). After adjustment for age and male gender, in total population, LVMI (p<0.001), cardiac diastolic function (E/Ea, p<0.001), PWV (p<0.001), eGFR (p=0.03), and urine albumin/creatinine ratio (p<0.001) changed gradually and significantly correlated with increasing BMI values. Obesity and overweight were independently related to the incidence of LVH, LVDD, artery stiffness, carotid arterial plaque, and microalbuminuria. Conclusion The incidence of asymptomatic TOD was significantly correlated with overweight and obesity, especially in women, whereas the underweight may favor in the prevention of TOD.
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Affiliation(s)
- Jing Xiong
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Yunyun Qian
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Shikai Yu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - HongWei Ji
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Jiadela Teliewubai
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Chen Chi
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - YuYan Lu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - YiWu Zhou
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - XiMin Fan
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Jue Li
- The Research Institute of Clinical Epidemiology, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Jacques Blacher
- Paris Descartes University, AP-HP, Diagnosis and Therapeutic Center, Hôtel-Dieu, Paris, France
| | - Yi Zhang
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - YaWei Xu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
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35
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Noguchi KS, Moncion K, Wiley E, MacDonald MJ, Richardson J, Roig M, Tang A. Prolonged Elevation of Arterial Stiffness Following Peak Aerobic Exercise in Individuals With Chronic Stroke. Front Physiol 2021; 12:666171. [PMID: 34079473 PMCID: PMC8165203 DOI: 10.3389/fphys.2021.666171] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 04/20/2021] [Indexed: 12/14/2022] Open
Abstract
Background Stroke is a highly disabling condition and is the second leading cause of death globally. Engaging in aerobic exercise is important for the prevention of a recurrent stroke through improving markers of cardiovascular health such as blood pressure and arterial stiffness. While higher intensities of aerobic exercise generally elicit greater cardioprotective effects, little is known about the acute cardiovascular effects of a single session of high intensity aerobic exercise in people with stroke. The objective of this study was to model the recovery of arterial stiffness (carotid-femoral pulse wave velocity, cfPWV), heart rate and blood pressure following peak intensity aerobic exercise in individuals with chronic stroke. Methods Ten participants with chronic stroke (mean ± SD age = 56.9 ± 11.8 years, median [IQR] years post-stroke = 2.9 [1.9]) performed a symptom-limited cardiopulmonary exercise test (CPET) on a recumbent stepper. Before the CPET, resting cfPWV, heart rate and blood pressure were measured. Immediately following the CPET, all outcomes were measured again continuously for 20 min to use all available observations (n = 245 observations) and capture any potential non-linear changes. Mixed model analyses were then applied to model post-exercise changes of cfPWV, heart rate and blood pressure. Results Carotid-femoral pulse wave velocity was increased from rest following the CPET (9.0 ± 0.53 to 9.9 ± 0.52 m/s, p < 0.001) and remained elevated for 20 min into post-exercise recovery, independent of heart rate (p = 0.001). Heart rate also increased from baseline (71.2 ± 3.2 to 77.4 ± 3.1 bpm, p < 0.001) and remained elevated for 10 min post-exercise (p < 0.001). Finger systolic blood pressure was reduced from rest (117.3 ± 4.7 to 111.8 ± 4.6 mmHg, p < 0.001) and remained reduced for 15 min after exercise (p < 0.001). There were no significant differences in finger diastolic or mean arterial pressures from rest. Conclusion This was the first study to capture continuous changes in cfPWV following peak aerobic exercise in any clinical population. The present study revealed that cfPWV is elevated for 20 min after peak aerobic exercise in individuals with stroke, which was independent of heart rate. These findings suggest there may be autonomic imbalances in large arteries following peak intensity aerobic exercise in individuals with stroke.
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Affiliation(s)
- Kenneth S Noguchi
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | - Kevin Moncion
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | - Elise Wiley
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | | | - Julie Richardson
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
| | - Marc Roig
- Memory and Motor Rehabilitation Laboratory, Feil and Oberfeld Research Centre, Jewish Rehabilitation Hospital, Montreal Center for Interdisciplinary Research in Rehabilitation, Laval, QC, Canada.,School of Physical and Occupational Therapy, McGill University, Montreal, QC, Canada
| | - Ada Tang
- School of Rehabilitation Science, McMaster University, Hamilton, ON, Canada
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36
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Kajantie E, Johnson S, Heinonen K, Anderson PJ, Wolke D, Evensen KAI, Räikkönen K, Darlow BA, van der Pal S, Indredavik MS, Jaekel J, Hovi P, Morrison K, Verrips E, Doyle LW. Common Core Assessments in follow-up studies of adults born preterm-Recommendation of the Adults Born Preterm International Collaboration. Paediatr Perinat Epidemiol 2021; 35:371-387. [PMID: 32990377 DOI: 10.1111/ppe.12694] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 05/04/2020] [Accepted: 05/10/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Of all newborns, 1%-2% are born very preterm (VP; <32 weeks) or with very low birthweight (VLBW; ≤1500 g). Advances in prenatal and neonatal care have substantially improved their survival, and the first generations who have benefited from these advances are now entering middle age. While most lead healthy lives, on average these adults are characterised by a number of adversities. These include cardiometabolic risk factors, airway obstruction, less physical activity, poorer visual function, lower cognitive performance, and a behavioural phenotype that includes inattention and internalising and socially withdrawn behaviour that may affect life chances and quality of life. Outcomes in later adulthood are largely unknown, and identifying trajectories of risk or resilience is essential in developing targeted interventions. Joint analyses of data and maintenance of follow-up of cohorts entering adulthood are essential. Such analyses are ongoing within the Adults Born Preterm International Collaboration (APIC; www.apic-preterm.org). Joint analyses require data harmonisation, highlighting the importance of consistent assessment methodologies. OBJECTIVE To present an expert recommendation on Common Core Assessments to be used in follow-up assessments of adults born preterm. METHODS Principles of Common Core Assessments were discussed at APIC meetings. Experts for each specific outcome domain wrote the first draft on assessments pertaining to that outcome. These drafts were combined and reviewed by all authors. Consensus was reached by discussion at APIC meetings. RESULTS We present a recommendation by APIC experts on consistent measures to be used in adult follow-up assessments. CONCLUSIONS The recommendation encompasses both "core" measures which we recommend to use in all assessments of adults born preterm that include the particular outcome. This will allow comparability between time and location. The recommendation also lists optional measures, focusing on current gaps in knowledge. It includes sections on study design, cardiometabolic and related biomarkers, biological samples, life style, respiratory, ophthalmic, cognitive, mental health, personality, quality of life, sociodemographics, social relationships, and reproduction.
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Affiliation(s)
- Eero Kajantie
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki and Oulu, Finland.,PEDEGO Research Unit, MRC Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland.,Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - Samantha Johnson
- Department of Health Sciences, University of Leicester, Leicester, UK
| | - Kati Heinonen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Peter J Anderson
- Turner Institute for Brain & Mental Health, Monash University, Melbourne, Vic., Australia.,Clinical Sciences, Murdoch Children's Research Institute, Melbourne, Vic., Australia
| | - Dieter Wolke
- Department of Psychology, University of Warwick, Coventry, UK.,Warwick Medical School, University of Warwick, Coventry, UK
| | - Kari Anne I Evensen
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Physiotherapy, Oslo Metropolitan University, Oslo, Norway.,Unit for Physiotherapy Services, Trondheim Municipality, Trondheim, Norway
| | - Katri Räikkönen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Brian A Darlow
- Department of Paediatrics, University of Otago, Christchurch, New Zealand
| | - Sylvia van der Pal
- Department of Child Health, The Netherlands Organization for Applied Scientific Research TNO, Leiden, The Netherlands
| | - Marit S Indredavik
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Julia Jaekel
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki and Oulu, Finland.,Department of Psychology, University of Warwick, Coventry, UK.,Department of Child and Family Studies, University of Tennessee Knoxville, Knoxville, TN, USA
| | - Petteri Hovi
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki and Oulu, Finland.,Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland.,Department of Pediatrics, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Katherine Morrison
- Department of Pediatrics, Centre for Metabolism, Obesity and Diabetes Research, McMaster University, Hamilton, ON, Canada
| | - Erik Verrips
- Department of Child Health, The Netherlands Organization for Applied Scientific Research TNO, Leiden, The Netherlands
| | - Lex W Doyle
- Clinical Sciences, Murdoch Children's Research Institute, Melbourne, Vic., Australia.,Research Office, Departments of Obstetrics and Gynaecology and of Paediatrics, The Royal Women's Hospital, University of Melbourne, Melbourne, Vic., Australia
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Cheung CP, Coates AM, Millar PJ, Burr JF. Habitual cannabis use is associated with altered cardiac mechanics and arterial stiffness, but not endothelial function in young healthy smokers. J Appl Physiol (1985) 2021; 130:660-670. [PMID: 33444123 DOI: 10.1152/japplphysiol.00840.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Cigarette smoking is among the most detrimental behaviors to cardiovascular health, resulting in arterial stiffening, endothelial dysfunction, and structural/functional alterations to the myocardium. Similar to cigarettes, cannabis is commonly smoked, and next to alcohol, is the most commonly used recreational substance in the world. Despite this, little is known about the long-term cardiovascular effects of smoking cannabis. This study explored the associations of cardiovascular structure and function with cannabis use in ostensibly healthy young participants (n = 35). Using echocardiography, carotid-femoral pulse wave velocity (cfPWV), and brachial flow-mediated dilation (FMD), we performed a cross-sectional assessment of cardiovascular function in cannabis users (n = 18) and controls (n = 17). There were no differences in cardiac morphology or traditional resting measures of systolic or diastolic function between cannabis users and controls (all P > 0.05), whereas cannabis users demonstrated reduced peak apical rotation compared with controls (cannabis users: 5.5 ± 3.8, controls: 9.6 ± 1.5; P = 0.02). Cannabis users had higher cfPWV compared with controls (cannabis users: 5.8 ± 0.6 m/s, controls: 5.3 ± 0.7 m/s; P = 0.05), whereas FMD was similar between cannabis users and controls (cannabis users: 8.3 ± 3.3%, controls: 6.8 ± 3.6%; P = 0.7). Young, healthy, and cannabis users demonstrate altered cardiac mechanics and greater aortic stiffness. Further studies should explore causal links between cannabis smoking and altered cardiovascular function.NEW & NOTEWORTHY Recreational cannabis is the most widely used substance in the world, other than alcohol. Yet, the effects of cannabis use on cardiovascular function and health are not well understood. Our cross-sectional data demonstrate that young, ostensibly healthy cannabis users have greater arterial stiffness and altered cardiac mechanics compared to nonusers. These findings suggest that cannabis users may be at greater risk of the development of future cardiovascular disease.
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Affiliation(s)
- Christian P Cheung
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Alexandra M Coates
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Philip J Millar
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
| | - Jamie F Burr
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada
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Litwin L, Sundholm JKM, Meinilä J, Kulmala J, Tammelin TH, Rönö K, Koivusalo SB, Eriksson JG, Sarkola T. Ideal Cardiovascular Health and Vascular Phenotype Associations in Mothers with Obesity and Their Six-Year-Old Children. Diabetes Metab Syndr Obes 2021; 14:3187-3197. [PMID: 34285526 PMCID: PMC8286111 DOI: 10.2147/dmso.s315402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 05/29/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Heredity and family-shared lifestyle contribute to cardiovascular risk, but the magnitude of their influence on arterial structure and function in early childhood is unknown. We aimed to assess associations between child and maternal ideal cardiovascular health, maternal subclinical atherosclerosis, and child arterial phenotype. METHODS Cross-sectional analysis of 201 mother-child pairs originating from the Finnish Gestational Diabetes Prevention Study (RADIEL) longitudinal cohort was done at child age 6.1 ± 0.5 years with assessments of ideal cardiovascular health (BMI, blood pressure, fasting glucose, total cholesterol, diet quality, physical activity, smoking), body composition, very-high frequency ultrasound of carotid arteries (25 and 35 MHz), and pulse wave velocity. RESULTS We found no association between child and maternal ideal cardiovascular health but report evidence of particular metrics correlations: total cholesterol (r=0.24, P=0.003), BMI (r=0.17, P=0.02), diastolic blood pressure (r=0.15, P=0.03), and diet quality (r=0.22, P=0.002). Child arterial phenotype was not associated with child or maternal ideal cardiovascular health. In the multivariable regression explanatory model adjusted for child sex, age, systolic blood pressure, lean body mass, and body fat percentage, child carotid intima-media thickness was independently associated only with maternal carotid intima-media thickness (0.1 mm increase [95% CI 0.05, 0.21, P=0.001] for each 1 mm increase in maternal carotid intima-media thickness). Children of mothers with subclinical atherosclerosis had decreased carotid artery distensibility (1.1 ± 0.2 vs 1.2 ± 0.2%/10 mmHg, P=0.01) and trend toward increased carotid intima-media thickness (0.37 ± 0.04 vs 0.35 ± 0.04 mm, P=0.06). CONCLUSION Ideal Cardiovascular Health metrics are heterogeneously associated in mother-child pairs in early childhood. We found no evidence of child or maternal Ideal Cardiovascular Health effect on child arterial phenotype. Maternal carotid intima-media thickness predicts child carotid intima-media thickness, but the underlying mechanisms remain unclear. Maternal subclinical atherosclerosis is associated with local carotid arterial stiffness in early childhood.
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Affiliation(s)
- Linda Litwin
- Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Congenital Heart Defects and Pediatric Cardiology, FMS in Zabrze, Medical University of Silesia, Katowice, Poland
- Correspondence: Linda Litwin Department of Congenital Heart Defects and Pediatric Cardiology, FMS in Zabrze, Medical University of Silesia, M.Sklodowskiej-Curie 9, Zabrze, 41-800, PolandTel +48 322713401Fax +48 322713401 Email
| | - Johnny K M Sundholm
- Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
| | - Jelena Meinilä
- Department of Food and Nutrition, University of Helsinki, Helsinki, Finland
| | - Janne Kulmala
- LIKES Research Centre for Physical Activity and Health, Jyväskylä, Finland
| | - Tuija H Tammelin
- LIKES Research Centre for Physical Activity and Health, Jyväskylä, Finland
| | - Kristiina Rönö
- Women’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Saila B Koivusalo
- Women’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Johan G Eriksson
- Folkhälsan Research Center, Helsinki, Finland
- Department of General Practice and Primary Health Care, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Human Potential Translational Research Programme and Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University Singapore, Singapore
- Singapore Institute for Clinical Sciences (SICS), Agency for Science, Technology and Research (A*STAR), Singapore
| | - Taisto Sarkola
- Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
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de Waal EEC. Arterial Stiffness, Assessed With Carotid-Femoral Pulse-Wave Velocity, and Vasopressor Response. J Cardiothorac Vasc Anesth 2020; 35:81-83. [PMID: 33303085 DOI: 10.1053/j.jvca.2020.09.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 09/23/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Eric E C de Waal
- Department of Anesthesiology, University Medical Center Utrecht, Utrecht, The Netherlands
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40
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Haroon SWP, Tai BC, Ling LH, Teo L, Davenport A, Schurgers L, Teo BW, Khatri P, Ong CC, Low S, Yeo XE, Tan JN, Subramanian S, Chua HR, Tan SY, Wong WK, Lau TWL. Treatment to reduce vascular calcification in hemodialysis patients using vitamin K (Trevasc-HDK): A study protocol for a randomized controlled trial. Medicine (Baltimore) 2020; 99:e21906. [PMID: 32899022 PMCID: PMC7478798 DOI: 10.1097/md.0000000000021906] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
INTRODUCTION End stage renal failure patients on hemodialysis have significant vascular calcification This is postulated to be related to sub-clinical vitamin K deficiency, which is prevalent in hemodialysis patients. Vitamin K deficiency result in the failure of the matrix GLA protein (MGP) to undergo carboxylation. MGP is a natural local inhibitor of vascular calcification and the lack of functional carboxylated MGP may contribute to increase vascular calcification. Vitamin K supplement should therefore correct this anomaly and decrease the rate or severity of vascular calcification in this population of patients on long-term maintenance hemodialysis. Our study seeks to evaluate the prevalence and the progression of vascular calcification in a cohort of maintenance hemodialysis patients. It will also evaluate the efficacy of vitamin K supplementation in reducing the progression of vascular calcification in this group of patients. METHODS This will be a single-center randomized, prospective and open-label interventional clinical trial of end stage renal failure patients on hemodialysis. We aim to recruit 200 patients. Eligible patients will be randomized to either the standard care arm or active treatment arm. Active treatment arm patients will receive standard care plus supplementation with oral vitamin K2 isoform 360 mcg 3 times weekly for a total duration of 18 months. Primary outcome measured will be absolute difference in coronary artery calcification score at 18-month between control and intervention arms. Secondary outcomes will be to compare absolute difference in aortic valve calcification, percentage of patients with regression of coronary artery calcification of at least 10%, absolute difference in aortic and systemic arterial stiffness, mortality from any cause and major adverse cardiovascular over the same period. DISCUSSION Evidence of successful regression or retardation of vascular calcification will support the conduct of larger and longer-term trials aimed at reducing cardiovascular disease mortality and major adverse cardiovascular events in this high-risk population using a safe and inexpensive strategy TRIAL REGISTRATION:: ClinicalTrials.gov NCT02870829. Registered on 17 August 2016 - Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT02870829National University Hospital's Institutional Review Board (2015/01000).
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Affiliation(s)
| | | | | | - Lynette Teo
- Department of Diagnostic Imaging, National University Hospital, Singapore
| | - Andrew Davenport
- UCL Centre for Nephrology, Royal Free Hospital, University College London, United Kingdom
| | - Leon Schurgers
- Department of Biochemistry, Cardiovascular Research Institute Maastricht, The Netherlands
| | - Boon-Wee Teo
- Division of Nephrology, National University Hospital Singapore
| | - Priyanka Khatri
- Division of Nephrology, National University Hospital Singapore
| | - Ching-Ching Ong
- Department of Diagnostic Imaging, National University Hospital, Singapore
| | - Sanmay Low
- Department of Medicine, Ng Teng Fong General Hospital
| | - Xi-Er Yeo
- Division of Nephrology, National University Hospital Singapore
| | - Jia-Neng Tan
- Division of Nephrology, National University Hospital Singapore
| | | | - Horng-Ruey Chua
- Division of Nephrology, National University Hospital Singapore
| | | | - Weng-Kin Wong
- Division of Nephrology, National University Hospital Singapore
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Kumrular M, Karaca Ozer P, Elitok A. The Role of Aortic Stiffness Parameters in Evaluating Myocardial Ischemia. Cardiol Res 2020; 11:328-336. [PMID: 32849968 PMCID: PMC7430893 DOI: 10.14740/cr1125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 07/07/2020] [Indexed: 12/02/2022] Open
Abstract
Background Arterial stiffness is a process resulting in deterioration of hemodynamic function of the aorta, a decrease in its compliance and elasticity, caused by the proportional change of components of the extracellular matrix. Although many researches have been done to determine the etiologies of myocardial ischemia in the absence of obstructive coronary artery disease, none of them has investigated the relation between the parameters of aortic stiffness and the myocardial ischemia documented by the exercise stress test. The present cross-sectional study aimed to investigate the difference of aortic stiffness parameters between the groups separated by exercise stress test result as positive and negative ischemic findings in the absence of obstructive coronary artery disease. Methods The present study included 79 patients who were admitted to Istanbul Faculty of Medicine, Department of Cardiology with complaint of chest pain. Forty patients (21 women and 19 men) have ischemic findings on the exercise electrocardiography (ECG) test and 39 patients (20 women and 19 men) have normal exercise ECG results. The patients who have positive exercise ECG findings underwent coronary angiography and all the patients had non-obstructive coronary artery disease. Demographic features (age, sex and comorbidities) were statistically similar between the groups. Aortic stiffness measurements (pulse wave velocity, pulse pressure, aortic augmented pressure, augmentation index, systolic pressure-time index, diastolic pressure-time index and subendocardial viability ratio) were done with tonometric methods. Results There was no significant difference between the two groups in terms of the aortic stiffness parameters. Systolic blood pressure (P = 0.33), diastolic blood pressure (P = 0.24), pulse pressure (P = 0.60), systolic pressure-time index (P = 0.10), diastolic pressure-time index (P = 0.91), subendocardial viability ratio (P = 0.19), aortic augmented pressure (P = 0.87), augmentation index (P = 0.58) and pulse wave velocity (P = 0.56) were detected between the two groups. Biochemical parameters were found similar between the two groups. Only low-density lipoprotein levels were slightly higher in patients with negative exercise stress test result (139 vs. 123 mg/dL, P = 0.02). Conclusion There is no finding supporting that the aortic stiffness identifies the patients with non-obstructive coronary artery disease but with signs of myocardial ischemia and further investigation of other causes of myocardial ischemia is required.
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Affiliation(s)
| | - Pelin Karaca Ozer
- Department of Cardiology, Istanbul University Istanbul Medical Faculty, Istanbul, Turkey
| | - Ali Elitok
- Department of Cardiology, Istanbul University Istanbul Medical Faculty, Istanbul, Turkey
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Jeong Y, Yao Y, Yim EKF. Current understanding of intimal hyperplasia and effect of compliance in synthetic small diameter vascular grafts. Biomater Sci 2020; 8:4383-4395. [PMID: 32643723 PMCID: PMC7452756 DOI: 10.1039/d0bm00226g] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Despite much effort, synthetic small diameter vascular grafts still face limited success due to vascular wall thickening known as intimal hyperplasia (IH). Compliance mismatch between graft and native vessels has been proposed to be one of a key mechanical factors of synthetic vascular grafts that could contribute to the formation of IH. While many methods have been developed to determine compliance both in vivo and in vitro, the effects of compliance mismatch still remain uncertain. This review aims to explain the biomechanical factors that are responsible for the formation and development of IH and their relationship with compliance mismatch. Furthermore, this review will address the current methods used to measure compliance both in vitro and in vivo. Lastly, current limitations in understanding the connection between the compliance of vascular grafts and the role it plays in the development and progression of IH will be discussed.
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Affiliation(s)
- YeJin Jeong
- Department of Chemical engineering, University of Waterloo, 200 University Ave W, Waterloo, ON N2L 3G1, Canada.
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Abstract
OBJECTIVE To determine which ultrasound-based, single-point arterial stiffness estimate is least dependent on blood pressure (BP) to improve assessment of local vascular function. METHODS Ultrasound was used to assess blood flow and diameters at the left brachial artery of 20 healthy adults [55% female, 27.9 years (5.2), 24.2 (2.8) kg/m]. BP of both arms was measured simultaneously. Experimental (left) arm BP was then systematically manipulated by adjusting its position ABOVE (+30°) and BELOW (-30°) heart level in a randomized order following measurement at heart level (0°). The control (right) arm remained at heart level. Six stiffness measurements were calculated: compliance, distensibility, beta-stiffness, and three estimates of pulse wave velocity (PWV) (Bramwell Hill, blood flow, and beta-stiffness). We considered the measurement technique with the least significant change across positions to be the least pressure-dependent. RESULTS There was a large effect change in mean arterial pressure (np = 0.75, P < 0.001) in the experimental arm when it was ABOVE (Δ-4.4 mmHg) and BELOW (Δ10.4 mmHg) heart level. There was a main effect (P < 0.05) of arm position on all arterial stiffness measures. From least to most pressure-dependent, the arterial stiffness measurements were: PWV (blood flow method), compliance coefficient, beta-stiffness, distensibility coefficient, PWV (Bramwell-Hill method), and PWV (beta-stiffness index method). CONCLUSION All single-point measures assessed are pressure-dependent. The PWV (blood flow method) may be the least pressure-dependent single-point measure, and may be the most suitable single-point measure to assess local vascular function.
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Establishing normal reference value of carotid ultrafast pulse wave velocity and evaluating changes on coronary slow flow. Int J Cardiovasc Imaging 2020; 36:1931-1939. [PMID: 32506285 DOI: 10.1007/s10554-020-01908-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 06/01/2020] [Indexed: 10/24/2022]
Abstract
Pulse wave velocity (PWV) measured by ultrafast ultrasound imaging can early evaluate arteriosclerosis. The study aimed to establish normal reference range for ufPWV in healthy adults and explore its influencing factors, and evaluate the ufPWV changes on coronary slow flow (CSF). ufPWV at the beginning and end of systole (ufPWV-BS and ufPWV-ES, respectively) was measured in healthy adults (201 cases). CSF was diagnosed based on thrombolysis in myocardial infarction (TIMI) frame count during coronary angiography. ufPWV-BS and ufPWV-ES were compared between CSF (50 cases) and control groups (50 healthy age-, body mass index-, and blood pressure-matched adults). In healthy adults, average ufPWV-BS and ufPWV-ES was 5.36 ± 1.27 m/s and 6.99 ± 1.93 m/s, respectively. ufPWV-BS and ufPWV-ES positively correlated with age, body mass index, and blood pressure. ufPWV-BS and ufPWV-ES in the CSF group were higher than in the control group (ufPWV-BS, 6.05 ± 1.07 vs. 5.26 ± 0.89 m/s, P < 0.001; ufPWV-ES, 9.07 ± 1.84 vs. 6.84 ± 1.08 m/s, P < 0.001). Receiver operating characteristic curves showed that ufPWV-ES was more sensitive than ufPWV-BS. The normal reference range of ufPWV for healthy adults was established. Age, body mass index, and blood pressure were the main influencing factors. ufPWV was increased in the patients with CSF. The findings indicated that, in addition to reflecting atherosclerosis, ufPWV might also provide a basis for the noninvasive evaluation of microvascular impairment in the patients with CSF.
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Rosenberg AJ, Schroeder EC, Grigoriadis G, Wee SO, Bunsawat K, Heffernan KS, Fernhall B, Baynard T. Aging reduces cerebral blood flow regulation following an acute hypertensive stimulus. J Appl Physiol (1985) 2020; 128:1186-1195. [PMID: 32240012 DOI: 10.1152/japplphysiol.00137.2019] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Aging increases arterial stiffness, which has a negative impact on cerebral blood flow (CBF) regulation (decreases CBF and increases CBF pulsatility). The association between arterial stiffness and CBF pulsatility may, in part, explain the relationship between elevated blood pressure (BP) fluctuations and end-organ disease with aging. To understand the mechanisms by which large BP alterations influence cerebral blood flow regulation in both young and old, we examined the effects of age on central and cerebral blood flow regulation following an acute hypertensive stimulus [resistance-exercise (RE)]. Measurements were obtained pre and immediately, 5, and 30 min post-RE in young (n = 35) and older (n = 26) adults. Measurements included cerebral blood velocity (CBv), CBv pulsatility, central pulse-wave velocity (PWV), beta-stiffness index (β), and carotid blood flow pulsatility. Central hemodynamics and BP were continuously recorded. Mean CBv increased immediately post-RE only in the young and decreased below baseline at 5 min post-RE in both groups (interaction, P < 0.05). Older adults had a greater increase in CBv pulsatility immediately post-RE compared with the young (interaction, P < 0.05). Mean BP was higher and carotid pulsatility was lower in the older group and increased immediately post-RE in both groups (P < 0.05). PWV increased immediately post-RE (P < 0.05). There were no changes in β. In conclusion, with aging, greater central arterial stiffness leads to a greater transmission of pulsatile blood velocity from the systemic circulation to the cerebral circulation following an acute hypertensive stress.NEW & NOTEWORTHY Reductions in cerebral blood flow and increases in flow pulsatility with aging are associated to cerebrovascular disease; however, little is known about how an acute hypertensive stimulus effects cerebral blood flow regulation in an aged population. Following the hypertensive stimulus, older adults elicit an attenuated increase in cerebral blood velocity and greater transmission of pulsatile velocity to the brain compared with young adults, demonstrating reduced cerebral blood flow regulation to elevated blood pressure responses with aging.
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Affiliation(s)
- Alexander J Rosenberg
- Department of Kinesiology and Nutrition, Integrative Physiology Laboratory, University of Illinois, Chicago, Illinois
| | - Elizabeth C Schroeder
- Department of Kinesiology and Nutrition, Integrative Physiology Laboratory, University of Illinois, Chicago, Illinois
| | - Georgios Grigoriadis
- Department of Kinesiology and Nutrition, Integrative Physiology Laboratory, University of Illinois, Chicago, Illinois
| | - Sang Ouk Wee
- Department of Kinesiology and Nutrition, Integrative Physiology Laboratory, University of Illinois, Chicago, Illinois.,Department of Kinesiology, California State University, San Bernardino, California
| | - Kanokwan Bunsawat
- Department of Kinesiology and Nutrition, Integrative Physiology Laboratory, University of Illinois, Chicago, Illinois.,Department of Internal Medicine, Division of Geriatrics, University of Utah; Geriatric Research, Education, and Clinical Center, Veterans Affairs Medical Center, Salt Lake City, Utah
| | - Kevin S Heffernan
- Department of Exercise Science, Human Performance Laboratory, Syracuse University, Syracuse, New York
| | - Bo Fernhall
- Department of Kinesiology and Nutrition, Integrative Physiology Laboratory, University of Illinois, Chicago, Illinois
| | - Tracy Baynard
- Department of Kinesiology and Nutrition, Integrative Physiology Laboratory, University of Illinois, Chicago, Illinois
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Stoiber M, Grasl C, Frieberger K, Moscato F, Bergmeister H, Schima H. Impact of the testing protocol on the mechanical characterization of small diameter electrospun vascular grafts. J Mech Behav Biomed Mater 2020; 104:103652. [DOI: 10.1016/j.jmbbm.2020.103652] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/09/2020] [Accepted: 01/21/2020] [Indexed: 01/01/2023]
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Abstract
OBJECTIVE Twenty-four-hour ambulatory pulse pressure (PP) is a powerful predictor of outcome. We attempted to apply the recently described PP components, an elastic (elPP), and systolic stiffening (stPP) components from 24-h ambulatory blood pressure (BP) monitoring (AMBP), and examine their influence on outcome in the Ohasama study population. DESIGN AND METHODS Included were participants of the Ohasama study without history of cardiovascular disease (CVD), who were followed-up for total and CVD mortality, and for stroke morbidity. The PP components were derived from 24-h SBP and DBP using a model based on the nonlinear pressure--volume relationship in arteries expressing pressure stiffness relationship. Outcome predictive power was estimated by Cox regression models; hazard ratio with 95% confidence interval (CI), applied to elPP, and stPP, adjusted for age, sex, BMI, smoking, alcohol drinking, diabetes mellitus, total cholesterol, antihypertensive treatment, and mean arterial pressure (MAP), whenever appropriate. RESULTS Of 1745 participants (age 61.4 ± 11.6, 65% women), 580 died, 212 of CVD, and 290 experienced a stroke during 17 follow-up years. PP was strongly correlated with elPP (r = 0.89) and less so with stPP (r = 0.58), and the correlation between the two components was weak (r = 0.15). After the adjustment, hazard ratio of PP per 1 SD increment for total mortality, CVD mortality, and stroke morbidity were 1.095 (95% CI 0.973-1.232), 1.207 (1.000-1.456), and 0.983 (0.829-1.166), respectively. Corresponding hazard ratios and 95% CIs were nonsignificant for elPP, and stPP. However, among participants with median pulse rate 68.5 bpm or less (median, n = 872), total (327 deaths) and CVD (131 deaths) mortality were predicted by elPP (per 1 SD increment), hazard ratio 1.231 (95% CI, 1.082-1.401), and 1.294 (95% CI, 1.069-1.566), respectively. In the subgroup of treated participants with hypertension and pulse rate 68.5 or less bpm (n = 309), total (177 deaths) and CVD (77 deaths) mortality were predicted by elPP, hazard ratio of 1.357 (95% CI, 1.131-1.628), and 1.417 (95% CI, 1.092-1.839), respectively. Stroke morbidity was not predicted by either PP or the PP components. CONCLUSION In a rural Japanese population, elPP but not stPP was predictive of total and CVD mortality even when adjusted for MAP and conventional risk factors in the subpopulation with slower pulse rate. This was mostly among the treated hypertensive patients.
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Reshetnik A, Wrobel D, Wirtz G, Tölle M, Eckardt KU, van der Giet M. True Arterial Stiffness Does Not Change between Dialysis Sessions during 1 Week in Outpatients on Intermitted Hemodialysis. Kidney Blood Press Res 2020; 45:51-60. [DOI: 10.1159/000504138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 10/12/2019] [Indexed: 11/19/2022] Open
Abstract
<b><i>Introduction:</i></b> End-stage renal disease (ESRD) is associated with exponentially elevated cardiovascular mortality. Arterial stiffness (AS) – usually expressed with pulse wave velocity (PWV) – is an established independent predictor of cardiovascular risk beyond the traditional risk factors. Higher PWV values are frequently observed in patients with ESRD. Due to the intrinsic physiologic relationship between PWV and prevailing arterial pressure, PWV can change without relevant changes in the arterial wall structure, and thus an individual pressure-independent expression of PWV is essential. <b><i>Methods:</i></b> The study is a single-center observational study. Repeated measurements of blood pressure (BP) and pulse wave analysis were performed during each dialysis session of 1 week. Aortic PWV was then adjusted to 120 mm Hg central systolic BP (PWV120) based on individually determined relationship. PWV120 values were compared between single sessions. Calculation of the PWV120 was performed retrospectively. <b><i>Results:</i></b> Fifty-four subjects were included, 61.1% of whom were male. The median age was 75.5 years, and median dialysis vintage was 33.1 months. Mean systolic/diastolic BP was 121.4/70.5 mm Hg, and the median heart rate was 64.6 beats/min. Mean PWV was 10.9 m/s, and mean PWV120 was 11.3 m/s. PWV120 did not change across single dialysis session during 1 week, while systolic, diastolic BP, PWV, and ultrafiltration volume differed significantly. <b><i>Discussion/Conclusions:</i></b> Our data suggest that true AS does not change in the short-term course in dialysis patients. The observed changes in PWV are rather associated with BP change due to intrinsic pressure dependence. Our analytical approach represents a novel method for this purpose, which is easy in performance and also applicable for large interventional trials and clinical practice.
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McMurray JJV, Jackson AM, Lam CSP, Redfield MM, Anand IS, Ge J, Lefkowitz MP, Maggioni AP, Martinez F, Packer M, Pfeffer MA, Pieske B, Rizkala AR, Sabarwal SV, Shah AM, Shah SJ, Shi VC, van Veldhuisen DJ, Zannad F, Zile MR, Cikes M, Goncalvesova E, Katova T, Kosztin A, Lelonek M, Sweitzer N, Vardeny O, Claggett B, Jhund PS, Solomon SD. Effects of Sacubitril-Valsartan Versus Valsartan in Women Compared With Men With Heart Failure and Preserved Ejection Fraction: Insights From PARAGON-HF. Circulation 2019; 141:338-351. [PMID: 31736337 DOI: 10.1161/circulationaha.119.044491] [Citation(s) in RCA: 201] [Impact Index Per Article: 40.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Unlike heart failure with reduced ejection fraction, there is no approved treatment for heart failure with preserved ejection fraction, the predominant phenotype in women. Therefore, there is a greater heart failure therapeutic deficit in women compared with men. METHODS In a prespecified subgroup analysis, we examined outcomes according to sex in the PARAGON-HF trial (Prospective Comparison of ARNI With ARB Global Outcomes in Heart Failure With Preserved Ejection Fraction), which compared sacubitril-valsartan and valsartan in patients with heart failure with preserved ejection fraction. The primary outcome was a composite of first and recurrent hospitalizations for heart failure and death from cardiovascular causes. We also report secondary efficacy and safety outcomes. RESULTS Overall, 2479 women (51.7%) and 2317 men (48.3%) were randomized. Women were older and had more obesity, less coronary disease, and lower estimated glomerular filtration rate and NT-proBNP (N-terminal pro-B-type natriuretic peptide) levels than men. For the primary outcome, the rate ratio for sacubitril-valsartan versus valsartan was 0.73 (95% CI, 0.59-0.90) in women and 1.03 (95% CI, 0.84-1.25) in men (P interaction = 0.017). The benefit from sacubitril-valsartan was attributable to reduction in heart failure hospitalization. The improvement in New York Heart Association class and renal function with sacubitril-valsartan was similar in women and men, whereas the improvement in Kansas City Cardiomyopathy Questionnaire clinical summary score was less in women than in men. The difference in adverse events between sacubitril-valsartan and valsartan was similar in women and men. CONCLUSIONS As compared with valsartan, sacubitril-valsartan seemed to reduce the risk of heart failure hospitalization more in women than in men. Whereas the possible sex-related modification of the effect of treatment has several potential explanations, the present study does not provide a definite mechanistic basis for this finding. CLINICAL TRIAL REGISTRATION https://www.clinicaltrials.gov. Unique identifier: NCT01920711.
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Affiliation(s)
- John J V McMurray
- BHF Cardiovascular Research Centre, University of Glasgow, UK (J.J.V.M., A.M.J., P.S.J.)
| | - Alice M Jackson
- BHF Cardiovascular Research Centre, University of Glasgow, UK (J.J.V.M., A.M.J., P.S.J.)
| | - Carolyn S P Lam
- National Heart Center Singapore and Duke-National University of Singapore (C.S.P.L.).,Department of Cardiology, University Medical Center Groningen, University of Groningen, The Netherlands (C.S.P.L., D.J.v.V.).,The George Institute for Global Health, Newtown, Australia (C.S.P.L.)
| | | | | | - Junbo Ge
- Shanghai Institute of Cardiovascular Diseases, China (J.G.)
| | - Marty P Lefkowitz
- Novartis Pharmaceuticals, East Hanover, NJ (M.P.L., A.R.R., S.V.S., V.C.S.)
| | - Aldo P Maggioni
- National Association of Hospital Cardiologists Research Center, Florence, Italy (A.P.M.)
| | | | | | - Marc A Pfeffer
- Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (M.A.P., A.M.S., B.C., S.D.S.)
| | - Burkert Pieske
- Department of Internal Medicine and Cardiology, German Center for Cardiovascular Research Partner Site Berlin, Germany (B.P.)
| | - Adel R Rizkala
- Novartis Pharmaceuticals, East Hanover, NJ (M.P.L., A.R.R., S.V.S., V.C.S.)
| | - Shalini V Sabarwal
- Novartis Pharmaceuticals, East Hanover, NJ (M.P.L., A.R.R., S.V.S., V.C.S.)
| | - Amil M Shah
- Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (M.A.P., A.M.S., B.C., S.D.S.)
| | - Sanjiv J Shah
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL (S.J.S.)
| | - Victor C Shi
- Novartis Pharmaceuticals, East Hanover, NJ (M.P.L., A.R.R., S.V.S., V.C.S.)
| | - Dirk J van Veldhuisen
- Department of Cardiology, University Medical Center Groningen, University of Groningen, The Netherlands (C.S.P.L., D.J.v.V.)
| | - Faiez Zannad
- INSERM Centre d'Investigation Clinic 1433 and Universite de Lorraine, Centre Hospitalier Regional et Universitaire, Nancy, France (F.Z.)
| | - Michael R Zile
- Medical University of South Carolina and the Ralph H. Johnson Department of Veterans Affairs Medical Center, Charleston (M.R.Z.)
| | - Maja Cikes
- Department of Cardiovascular Diseases, University of Zagreb School of Medicine and University Hospital Centre Zagreb, Croatia (M.C.)
| | - Eva Goncalvesova
- Department of Heart Failure-Transplantation, National Cardiovascular Institute, Bratislava, Slovakia (E.G.)
| | - Tzvetana Katova
- Clinic of Cardiology, National Cardiology Hospital, Sofia, Bulgaria (T.K.)
| | - Anamaria Kosztin
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary (A.K.)
| | - Malgorzata Lelonek
- Department of Noninvasive Cardiology, Medical University of Lodz, Poland (M.L.)
| | | | - Orly Vardeny
- Minneapolis VA Center for Care Delivery and Outcomes Research, University of Minnesota (O.V.)
| | - Brian Claggett
- Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (M.A.P., A.M.S., B.C., S.D.S.)
| | - Pardeep S Jhund
- BHF Cardiovascular Research Centre, University of Glasgow, UK (J.J.V.M., A.M.J., P.S.J.)
| | - Scott D Solomon
- Cardiovascular Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (M.A.P., A.M.S., B.C., S.D.S.)
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Holwerda SW, Luehrs RE, DuBose L, Collins MT, Wooldridge NA, Stroud AK, Fadel PJ, Abboud FM, Pierce GL. Elevated Muscle Sympathetic Nerve Activity Contributes to Central Artery Stiffness in Young and Middle-Age/Older Adults. Hypertension 2019; 73:1025-1035. [PMID: 30905199 DOI: 10.1161/hypertensionaha.118.12462] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Muscle sympathetic nerve activity (MSNA) influences the mechanical properties (ie, vascular smooth muscle tone and stiffness) of peripheral arteries, but it remains controversial whether MSNA contributes to stiffness of central arteries, such as the aorta and carotids. We examined whether elevated MSNA (age-related) would be independently associated with greater stiffness of central (carotid-femoral pulse wave velocity [PWV]) and peripheral (carotid-brachial PWV) arteries, in addition to lower carotid compliance coefficient, in healthy men and women (n=88, age: 19-73 years, 52% men). We also examined whether acute elevations in MSNA without increases in mean arterial pressure using graded levels of lower body negative pressure would augment central and peripheral artery stiffness in young (n=15, 60% men) and middle-age/older (MA/O, n=14, 43% men) adults. Resting MSNA burst frequency (bursts·min-1) was significantly correlated with carotid-femoral PWV ( R=0.44, P<0.001), carotid-brachial PWV ( R=0.32, P=0.004), and carotid compliance coefficient ( R=0.28, P=0.01) after controlling for sex, mean arterial pressure, heart rate, and waist-to-hip ratio (central obesity), but these correlations were abolished after further controlling for age (all P>0.05). In young and MA/O adults, MSNA was elevated during lower body negative pressure ( P<0.001) and produced significant increases in carotid-femoral PWV (young: Δ+1.3±0.3 versus MA/O: Δ+1.0±0.3 m·s-1, P=0.53) and carotid-brachial PWV (young: Δ+0.7±0.3 versus MA/O: Δ+0.7±0.5 m·s-1, P=0.92), whereas carotid compliance coefficient during lower body negative pressure was significantly reduced in young but not MA/O (young: Δ-0.04±0.01 versus MA/O: Δ0.001±0.008 mm2·mm Hg-1, P<0.01). Collectively, these data demonstrate the influence of MSNA on central artery stiffness and its potential contribution to age-related increases in stiffness of both peripheral and central arteries.
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Affiliation(s)
- Seth W Holwerda
- From the Department of Health and Human Physiology (S.W.H., R.E.L., M.T.C., N.A.W., G.L.P.).,Abboud Cardiovascular Research Center (S.W.H., F.M.A., G.L.P.)
| | - Rachel E Luehrs
- From the Department of Health and Human Physiology (S.W.H., R.E.L., M.T.C., N.A.W., G.L.P.)
| | | | - Michael T Collins
- From the Department of Health and Human Physiology (S.W.H., R.E.L., M.T.C., N.A.W., G.L.P.)
| | - Nealy A Wooldridge
- From the Department of Health and Human Physiology (S.W.H., R.E.L., M.T.C., N.A.W., G.L.P.)
| | | | - Paul J Fadel
- Department of Kinesiology, University of Texas at Arlington (P.J.F.)
| | - Francois M Abboud
- Abboud Cardiovascular Research Center (S.W.H., F.M.A., G.L.P.).,Department of Internal Medicine (F.M.A.).,Department of Molecular Physiology and Biophysics (F.M.A.)
| | - Gary L Pierce
- From the Department of Health and Human Physiology (S.W.H., R.E.L., M.T.C., N.A.W., G.L.P.).,Abboud Cardiovascular Research Center (S.W.H., F.M.A., G.L.P.).,Fraternal Order of Eagles Diabetes Research Center (G.L.P.)
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