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Brollo PP, Bresadola V. Enhancing visualization and guidance in general surgery: a comprehensive and narrative review of the current cutting-edge technologies and future perspectives. J Gastrointest Surg 2024; 28:179-185. [PMID: 38445941 DOI: 10.1016/j.gassur.2023.12.009] [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: 11/09/2023] [Revised: 11/25/2023] [Accepted: 12/08/2023] [Indexed: 03/07/2024]
Abstract
BACKGROUND In the last decade, there has been a great effort in developing new technologies to enhance surgical visualization and guidance. This comprehensive and narrative review aimed to provide a wide and extensive overview of the current state of the art on this topic and their near-future perspectives linked to the development of artificial intelligence (AI), by focusing on the most recent and relevant literature. METHODS A comprehensive and narrative review of the literature was performed by searching specific terms on PubMed/MEDLINE, Scopus, and Embase databases, assessing the current state of the art on this topic. RESULTS Fluorescence-guided surgery, contrast-enhanced ultrasound (CEUS), ultra-high frequency ultrasound (UHFUS), photoacoustic imaging (PAI), and augmented reality (AR) are boosting the field of image-guided techniques as the rapid development of AI in surgery is promising a more automated decision-making and surgical movements in the operating room. CONCLUSION Fluorescence-guided surgery, CEUS, UHFUS, PAI, and AR are becoming crucial to give surgeons a new level of information during the intervention, with the right timing and sequence, and represent the future of surgery. As many more controlled studies are needed to validate the employment of these technologies, the next generation of surgeons must become more familiar with the basics of AI to better incorporate new tools into the daily surgical practice of the future.
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Affiliation(s)
- Pier Paolo Brollo
- Department of Medicine, General Surgery Department and Simulation Center, Academic Hospital of Udine, University of Udine, Udine, Italy; General Surgical Oncology Department, Istituto di Ricovero e Cura a Carattere Scientifico Centro di Riferimento Oncologico di Aviano (Istituto Nazionale Tumori), Aviano, Italy.
| | - Vittorio Bresadola
- Department of Medicine, General Surgery Department and Simulation Center, Academic Hospital of Udine, University of Udine, Udine, Italy
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Sundholm JKM, Litwin L, Rönö K, Koivusalo SB, Eriksson JG, Sarkola T. Ultra-high frequency ultrasound delineated changes in carotid and muscular artery intima-media and adventitia thickness in obese early middle-aged women. Diab Vasc Dis Res 2022; 19:14791641221094321. [PMID: 35637577 PMCID: PMC9160911 DOI: 10.1177/14791641221094321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Obesity is linked to increased arterial size, carotid intima-media thickness and arterial stiffness. The effects of obesity and body composition on muscular artery intima-media and adventitia thickness has previously not been established. The aim of this study was to explore associations between carotid and muscular artery wall layer thickness with body composition and cardiovascular risk factors in early middle-aged women. This is a cross-sectional study including 199 women aged 40±4 years. Arterial lumen (LD), intima-media (IMT) and adventitia thickness (AT) were measured from carotid, brachial and radial arteries using ultra-high frequency ultrasound (22-71 MHz). Women with obesity had increased IMT in carotid (0.47 vs 0.45 mm), brachial (0.19 vs 0.17 mm) and radial arteries (0.16 vs 0.15 mm) and increased brachial AT (0.14 vs 0.13 mm). In multiple regression models all arterial LD (β-range 0.02-0.03 mm/kg/m2), IMT (β-range 0.91-3.37 µm/kg/m2), AT (β-range 0.73-1.38 µm/kg/m2) were significantly associated with BMI. The IMT of all arteries were significantly associated with systolic blood pressure (β-range 0.36-0.85 µm/mmHg), attenuating the association between IMT and BMI (β-range 0.18-2.24 µm/kg/m2). Obese early middle-aged women have increased arterial intima media thickness and brachial artery adventitia thickness compared to non-obese counterparts. The association between BMI and intima-media thickness is partly mediated through blood pressure levels.
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Affiliation(s)
- Johnny KM Sundholm
- Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
- Johnny KM Sundholm, Children’s Hospital, Helsinki University Hospital, Stenbäckinkatu 9, POB 281, FIN-00029, Helsinki 00029, Finland.
| | - Linda Litwin
- Children’s Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
- Department of Congenital Heart Defects and Pediatric Cardiology, SMDZ in Zabrze, SUM, Katowice, Poland
| | - 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
- Department of Gynecology and Obstetrics, University of Turku and Turku University Hospital, Turku Finland
| | - Johan G Eriksson
- Department of General Practice and Primary Health Care, University of Helsinki, and Helsinki University Hospital, Helsinki, Finland
- Folkhälsan Research Center, Helsinki, Finland
- Department of Obstetrics & Gynaecology and Human Potential Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Agency for Science, Technology and Research, Singapore Institute for Clinical Sciences, 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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3
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Radial artery lumen diameter and intima thickness in patients with abdominal aortic aneurysm. JVS Vasc Sci 2022; 3:274-284. [PMID: 36052216 PMCID: PMC9424594 DOI: 10.1016/j.jvssci.2022.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/22/2022] [Indexed: 11/21/2022] Open
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Privitera L, Paraboschi I, Dixit D, Arthurs OJ, Giuliani S. Image-guided surgery and novel intraoperative devices for enhanced visualisation in general and paediatric surgery: a review. Innov Surg Sci 2021; 6:161-172. [PMID: 35937852 PMCID: PMC9294338 DOI: 10.1515/iss-2021-0028] [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: 06/02/2021] [Accepted: 12/17/2021] [Indexed: 12/27/2022] Open
Abstract
Fluorescence guided surgery, augmented reality, and intra-operative imaging devices are rapidly pervading the field of surgical interventions, equipping the surgeon with powerful tools capable of enhancing the surgical visualisation of anatomical normal and pathological structures. There is a wide range of possibilities in the adult population to use these novel technologies and devices in the guidance for surgical procedures and minimally invasive surgeries. Their applications and their use have also been increasingly growing in the field of paediatric surgery, where the detailed visualisation of small anatomical structures could reduce procedure time, minimising surgical complications and ultimately improve the outcome of surgery. This review aims to illustrate the mechanisms underlying these innovations and their main applications in the clinical setting.
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Affiliation(s)
- Laura Privitera
- Wellcome/EPSRC Centre for Interventional & Surgical Sciences, London, UK,Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Irene Paraboschi
- Wellcome/EPSRC Centre for Interventional & Surgical Sciences, London, UK,Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Divyansh Dixit
- Faculty of Medicine, University of Southampton, Southampton, UK
| | - Owen J Arthurs
- Department of Clinical Radiology, NHS Foundation Trust, Great Ormond Street Hospital for Children, London, UK,NIHR GOSH Biomedical Research Centre, NHS Foundation Trust, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Stefano Giuliani
- Wellcome/EPSRC Centre for Interventional & Surgical Sciences, London, UK,Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, London, UK,Department of Specialist Neonatal and Paediatric Surgery, NHS Foundation Trust, Great Ormond Street Hospital for Children, London, UK
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5
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Troy AM, Cheng HM. Human microvascular reactivity: a review of vasomodulating stimuli and non-invasive imaging assessment. Physiol Meas 2021; 42. [PMID: 34325417 DOI: 10.1088/1361-6579/ac18fd] [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] [Received: 03/31/2021] [Accepted: 07/29/2021] [Indexed: 11/11/2022]
Abstract
The microvasculature serves an imperative function in regulating perfusion and nutrient exchange throughout the body, adaptively altering blood flow to preserve hemodynamic and metabolic homeostasis. Its normal functioning is vital to tissue health, whereas its dysfunction is present in many chronic conditions, including diabetes, heart disease, and cognitive decline. As microvascular dysfunction often appears early in disease progression, its detection can offer early diagnostic information. To detect microvascular dysfunction, one uses imaging to probe the microvasculature's ability to react to a stimulus, also known as microvascular reactivity (MVR). An assessment of MVR requires an integrated understanding of vascular physiology, techniques for stimulating reactivity, and available imaging methods to capture the dynamic response. Practical considerations, including compatibility between the selected stimulus and imaging approach, likewise require attention. In this review, we provide a comprehensive foundation necessary for informed imaging of MVR, with a particular focus on the challenging endeavor of assessing microvascular function in deep tissues.
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Affiliation(s)
- Aaron M Troy
- Institute of Biomedical Engineering, University of Toronto, Toronto, CANADA
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Zhao L, Meng X, Zhang QY, Dong XQ, Zhou XL. A narrative review of prehypertension and the cardiovascular system: effects and potential pathogenic mechanisms. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:170. [PMID: 33569472 PMCID: PMC7867937 DOI: 10.21037/atm-20-5482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In 1939, Robinson and Brucer first proposed the concept of prehypertension (PHTN), which was defined as a systolic blood pressure of 120–139 mmHg and/or diastolic blood pressure of 80–89 mmHg. PHTN is a major global health risk that adversely affects human health, especially the cardiovascular system. People with PHTN have a higher risk of developing cardiovascular diseases, including stroke, coronary heart disease, myocardial infarction and total cardiovascular events. However, there are few systematic summaries of the relationship between PHTN and the cardiovascular system. Furthermore, because the definition of ‘normal BP’ and the advantages of more intensive BP control remain unclear, there is no consensus on optimal interventions. In an attempt to provide information for clinicians or professionals who are interested in reducing the risk associated with PHTN, we review the existing studies to provide references for them with the effects of PHTN on the cardiovascular system and the potential pathogenic mechanisms of PHTN, including inflammatory responses, insulin resistance, endothelial dysfunction, sympathovagal imbalance, activation of the renin-angiotensin system and others. PHTN is highly prevalent and has adverse effects on health. An effective public health strategy is important to prevent the progression of PHTN. We envisage that this information will increase the public attention of PHTN and help to provide more strategies to reduce the risk of cardiovascular events.
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Affiliation(s)
- Lin Zhao
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xu Meng
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qiong-Yu Zhang
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xue-Qi Dong
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xian-Liang Zhou
- Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Liu J, Song G, Zhao G, Meng T. Epicardial adipose tissue thickness as a potential predictor of pre-eclampsia. Pregnancy Hypertens 2020; 23:87-90. [PMID: 33296832 DOI: 10.1016/j.preghy.2020.11.009] [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: 04/03/2020] [Revised: 09/27/2020] [Accepted: 11/27/2020] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Pre-eclampsia (PE) is a leading cause of maternal and fetal morbidity and mortality. Our aim was to assess epicardial adipose tissue (EAT) thickness as a potential effective screening parameter to predict PE in the first trimester. METHODS 133 women with PE were enrolled in this study, and divided into the early-onset and late-onset subgroups. 150 healthy women were enrolled as control group. Anthropometric and echocardiographic parameters were obtained, including EAT thickness. Generalized linear models was used to assess the predict efficiency of EAT with fdds ratio (OR) and 95% confidence intervals (CIs). RESULTS Compared to the controls, EAT thickness was higher in PE patients (P < 0.05). Multivariate regression analysis indicated that EAT thickness was associated with PE risk (OR = 1.50, 95%CI: 1.19-1.88, P < 0.05). The area under curves of EAT thickness was 0.616. When the cutoff value for EAT thickness was set to 5.26 mm, the sensitivity was 78.2% and the specificity was 44.7%. EAT thickness significantly both higher in the early-onset and late-onset groups compared to the controls; Meanwhile, EAT thickness was higher in the early-onset group than late-onset group (P < 0.05). Logistic regressionrevealed the close relationship between onset time of PE and EAT thickness (OR = 1.59, 95%CI: 1.28-1.98, P < 0.001). CONCLUSIONS Measured EAT thickness using echocardiography could identify high-risk people for PE as early as the first trimester. Echocardiographic EAT has the potential to be a predictor for PE prior to actual clinical diagnosis.
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Affiliation(s)
- Jing Liu
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Guang Song
- Department of Ultrasound, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ge Zhao
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Tao Meng
- Department of Obstetrics, The First Affiliated Hospital of China Medical University, Shenyang, China.
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Park J, Na Y, Jang Y, Park SY, Park H. Correlation of Pre-Hypertension with Carotid Artery Damage in Middle-Aged and Older Adults. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17207686. [PMID: 33096848 PMCID: PMC7589827 DOI: 10.3390/ijerph17207686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 11/17/2022]
Abstract
The intima–media thickness (IMT), luminal diameters (LDs), flow velocities (FVs), compliance, and β-stiffness of the carotid artery (CA) are considered as independent risk factors for cardiovascular diseases (CVDs). Pre-hypertension (PHT) is also an independent CVD risk factor. This study investigated the association between CA damage (CAD) and PHT. A total of 544 adults participated; their blood pressures (BPs) and CA characteristics were measured using a mercury-free sphygmomanometer and ultrasound. Analysis of covariance (ANCOVA) was performed to assess the differences in the CA characteristics according to the BPs, multinomial logistic regression to evaluate the risk of CAD associated with PHT. In ANCOVA, the CA characteristics of PHT were significantly different from normotensive. The odds ratios (ORs) of IMTmax, LDmax, LDmin, peak-systolic FV (PFV), end-diastolic FV (EFV), PFV/LDmin, EFV/LDmax, compliance, and β-stiffness of PHT were 4.20, 2.70, 3.52, 2.41, 3.06, 3.55, 3.29, 2.02, and 1.84 times higher than those of the normotensive, respectively, in Model 2. In Model 3 adjusted for age, the ORs of LDmax, LDmin, EFV, PFV/LDmin, and EFV/LDmax of PHT were 2.10, 2.55, 1.96, 2.20, and 2.04 times higher than those of the normotensive, respectively. Therefore, the present study revealed that CAD is closely correlated with pre-hypertensive status in adults.
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Affiliation(s)
- Jinkee Park
- Department of Sport Rehabilitation, Dong-Ju College, Busan 49318, Korea;
| | - Yongseong Na
- Department of Health Science, Dong-A University, Busan 49315, Korea; (Y.N.); (Y.J.)
| | - Yunjung Jang
- Department of Health Science, Dong-A University, Busan 49315, Korea; (Y.N.); (Y.J.)
| | - Song-Young Park
- School of Health and Kinesiology, University of Nebraska Omaha, Omaha, NE 68182, USA;
| | - Hyuntae Park
- Department of Health Science, Dong-A University, Busan 49315, Korea; (Y.N.); (Y.J.)
- Institute of Convergence Bio-Health, Dong-A University, Busan 49315, Korea
- Correspondence: ; Tel.: +82-51-200-7517
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9
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Izzetti R, Vitali S, Aringhieri G, Nisi M, Oranges T, Dini V, Ferro F, Baldini C, Romanelli M, Caramella D, Gabriele M. Ultra-High Frequency Ultrasound, A Promising Diagnostic Technique: Review of the Literature and Single-Center Experience. Can Assoc Radiol J 2020; 72:418-431. [PMID: 32721173 DOI: 10.1177/0846537120940684] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVES Ultra-high frequency ultrasonography (UHFUS) is a recently introduced diagnostic technique which finds several applications in diverse clinical fields. The range of frequencies between 30 and 100 MHz allows for high spatial resolution imaging of superficial structures, making this technique suitable for the imaging of skin, blood vessels, musculoskeletal anatomy, oral mucosa, and small parts. However, the current clinical applications of UHFUS have never been analyzed in a consistent multidisciplinary manner. The aim of this study is to revise and discuss the current applications of UHFUS in different aspects of research and clinical practice, as well as to provide some examples of the current work-in-progress carried out in our center. MATERIALS AND METHODS A literature search was performed in order to retrieve articles reporting the applications of UHFUS both in research and in clinical settings. Inclusion criteria were the use of frequencies above 30 MHz and study design conducted in vivo on human subjects. RESULTS In total 66 articles were retrieved. The majority of the articles focused on dermatological and vascular applications, although musculoskeletal and intraoral applications are emerging fields of use. We also describe our experience in the use of UHFUS as a valuable diagnostic support in the fields of dermatology, rheumatology, oral medicine, and musculoskeletal anatomy. CONCLUSION Ultra-high frequency ultrasonography application involves an increasing number of medical fields. The high spatial resolution and the superb image quality achievable allow to foresee a wider use of this novel technique, which has the potential to bring innovation in diagnostic imaging.
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Affiliation(s)
- Rossana Izzetti
- Unit of Dentistry and Oral Surgery, Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, 9310University of Pisa, Pisa, Italy
| | - Saverio Vitali
- Diagnostic and Interventional Radiology, Department of Translational Research and of New Technologies in Medicine and Surgery, 9310University of Pisa, Pisa, Italy
| | - Giacomo Aringhieri
- Diagnostic and Interventional Radiology, Department of Translational Research and of New Technologies in Medicine and Surgery, 9310University of Pisa, Pisa, Italy
| | - Marco Nisi
- Unit of Dentistry and Oral Surgery, Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, 9310University of Pisa, Pisa, Italy
| | - Teresa Oranges
- Unit of Dermatology, Department of Clinical and Experimental Medicine, 9310University of Pisa, Pisa, Italy
| | - Valentina Dini
- Unit of Dermatology, Department of Clinical and Experimental Medicine, 9310University of Pisa, Pisa, Italy
| | - Francesco Ferro
- Unit of Rheumatology, Department of Clinical and Experimental Medicine, 9310University of Pisa, Pisa, Italy
| | - Chiara Baldini
- Unit of Rheumatology, Department of Clinical and Experimental Medicine, 9310University of Pisa, Pisa, Italy
| | - Marco Romanelli
- Unit of Dermatology, Department of Clinical and Experimental Medicine, 9310University of Pisa, Pisa, Italy
| | - Davide Caramella
- Diagnostic and Interventional Radiology, Department of Translational Research and of New Technologies in Medicine and Surgery, 9310University of Pisa, Pisa, Italy
| | - Mario Gabriele
- Unit of Dentistry and Oral Surgery, Department of Surgical, Medical and Molecular Pathology and Critical Care Medicine, 9310University of Pisa, Pisa, Italy
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Affiliation(s)
- Basky Thilaganathan
- From the Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust, United Kingdom (B.T.).,Molecular and Clinical Sciences Research Institute, St George's University of London, United Kingdom (B.T.)
| | - Erkan Kalafat
- Faculty of Medicine, Department of Obstetrics and Gynecology, Ankara University, Turkey (E.K.)
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Viviano SL, Chandler LK, Keith JD. Ultrahigh Frequency Ultrasound Imaging of the Hand: A New Diagnostic Tool for Hand Surgery. Hand (N Y) 2018; 13:720-725. [PMID: 28952393 PMCID: PMC6300172 DOI: 10.1177/1558944717731856] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Ultrasonography is a cost-effective, noninvasive, and expedient imaging modality with numerous clinical applications. Conventional ultrasound uses transducers with frequencies that range from 5 to 12 MHz. However, ultrahigh frequency ultrasound (UHFUS) is capable of producing frequencies up to 70 MHz, which can achieve tissue resolution up to 30 μm. The purpose of our study is to present the capabilities of a novel technology and to describe its possible clinical applications for hand surgery. METHODS The Vevo 2100 (VisualSonics, Toronto, Canada) system was used to perform all ultrasound exams. Four unique linear array transducers were employed. All studies were performed by the authors, who have no formal training in ultrasound techniques, on 5 healthy resident volunteers and 1 clinical patient under institutional review board approval. RESULTS A series of 10 static images per participant and dynamic, real-time videos were obtained at various locations within the hand and wrist. UHFUS is capable of quickly and reliably imaging larger structures such as foreign bodies, soft tissue masses, and the flexor tendons, and diagnosing an array of pathologies within these structures. In addition, UHFUS can identify much finer structures such as the intimal layer of the arteries in the hand and individual fascicles within the digital nerves to provide data about vessel quality and vascular and neural pathologies. CONCLUSIONS UHFUS is a novel technology that shows multiple advantages over conventional ultrasound for imaging the fine superficial structures of the hand and wrist, and can be deployed by the surgeon at the point of care.
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Affiliation(s)
| | | | - Jonathan D. Keith
- Rutgers New Jersey Medical School,
Newark, USA,Jonathan D. Keith, Division of Plastic
Surgery, Department of Surgery, Rutgers New Jersey Medical School, 140 Bergen
Street, Suite E1620, Newark, NJ 07103, USA.
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12
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Liu B, Chen Z, Dong X, Qin G. Association of prehypertension and hyperhomocysteinemia with subclinical atherosclerosis in asymptomatic Chinese: a cross-sectional study. BMJ Open 2018; 8:e019829. [PMID: 29555791 PMCID: PMC5875630 DOI: 10.1136/bmjopen-2017-019829] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVES Comorbid hypertension and hyperhomocysteinemia is an important risk factor for carotid atherosclerotic plaque formation. We put forward the hypothesis that the subjects with comorbid prehypertension and hyperhomocysteinemia also had an increased risk of subclinical atherosclerosis, using carotid intima-media thickness (CIMT) as the marker of the atherosclerotic process. METHODS A total of 4102 asymptomatic Chinese subjects aged 18-60 years were divided into four groups according to blood pressure (BP) and homocysteine (HCY) level: the control group without prehypertension or hyperhomocysteinemia, isolated prehypertension group, simple hyperhomocysteinemia group and prehypertension with hyperhomocysteinemia group. Serum lipids, fasting blood glucose (FBG), HCY and CIMT were measured. RESULTS There was significant difference in the positive rates of increased CIMT among four groups. Compared with the controls, the subjects in the other three groups had a higher risk of increased CIMT (isolated prehypertension group, OR 2.049, 95% CI 1.525 to 2.754; simple hyperhomocysteinemia group, OR 2.145, 95% CI 1.472 to 3.125; prehypertension and hyperhomocysteinemia group, OR 3.199, 95% CI 2.362 to 4.332). However, by multiple logistic regression analysis, only comorbid prehypertension and hyperhomocysteinemia was independently associated with increased CIMT (OR 1.485, 95% CI 1.047 to 2.108, P<0.05). CONCLUSIONS Comorbid prehypertension and hyperhomocysteinemia was an independent risk factor of subclinical atherosclerosis in asymptomatic Chinese, but isolated prehypertension or hyperhomocysteinemia was not. Therefore, combined intervention for prehypertension and hyperhomocysteinemia may contribute to decrease the incident of cardiovascular disease.
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Affiliation(s)
- Bo Liu
- Department of Laboratory, School of Medicine, Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Zhihao Chen
- Department of Infectious Diseases, School of Medicine, Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Xiaoqi Dong
- Department of Oral Maxillofacial Surgery, School of Medicine, Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Guangming Qin
- Department of Laboratory, School of Medicine, Second Affiliated Hospital, Zhejiang University, Hangzhou, China
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13
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Adingupu DD, Westergren HU, Dahgam S, Jönsson-Rylander AC, Blomster J, Albertsson P, Omerovic E, Svedlund S, Gan LM. Radial artery intima-media thickness regresses after secondary prevention interventions in patients' post-acute coronary syndrome and is associated with cardiac and kidney biomarkers. Oncotarget 2017; 8:53419-53431. [PMID: 28881821 PMCID: PMC5581120 DOI: 10.18632/oncotarget.18511] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 05/17/2017] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Radial artery intima-media thickness (rIMT) measured by ultra-high-resolution ultrasound is associated with increased cardiovascular risk and predicts outcomes. We performed non-invasive high-resolution ultrasound of the radial artery to investigate vascular changes in subjects presenting with acute coronary syndrome (ACS) and who had undergone percutaneous coronary intervention (PCI). PURPOSE In the present work, we aimed to follow rIMT change over time post-acute coronary syndrome as a tool to monitor potential response to intensified medical therapy. METHODS We examined 256 subjects who underwent PCI due to ACS and healthy controls (n= 39) and we measured a number of biomarkers, which are known to be associated with cardiovascular disease. Images of radial artery were acquired bilaterally in the longitudinal view using a 50 MHz transducer (Vevo 2100 VisualSonics, Inc, Toronto, Ontario, Canada). Carotid IMT (cIMT) and rIMT were measured at <1 month after index PCI followed by a repeated measurement of rIMT at 4 months from the ACS in a sub-set (n=117). RESULTS rIMT measured within 1 month post ACS was significantly higher than rIMT after 4 months from ACS, (p < 0.0001), mean ± SD (rIMT right 0.35 ± 0.08; rIMT left 0.37 ± 0.08) vs. (rIMT right 0.29 ± 0.08; rIMT left 0.31 ± 0.09) respectively. There was no statistically significant change in cIMT. In healthy controls there were no changes in rIMT or cIMT overtime. High levels of CX3CL1 and myeloperoxidase measured within one month post ACS are associated with increase of rIMT, r=0.38 (p< 0.0001) and r=0.41 (p< 0.0001) respectively. CONCLUSIONS rIMT seem to decrease systemically after ACS and is accompanied with corresponding biomarker change. The cause and clinical implications of the observed decrement in rIMT after ACS need further studies.
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Affiliation(s)
| | - Helena U Westergren
- AstraZeneca R&D Gothenburg, Mölndal, Sweden.,Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | | | | | - Juuso Blomster
- AstraZeneca R&D Gothenburg, Mölndal, Sweden.,Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Per Albertsson
- Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Elmir Omerovic
- Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Sara Svedlund
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.,Department of Clinical Physiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Li-Ming Gan
- AstraZeneca R&D Gothenburg, Mölndal, Sweden.,Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.,Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
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Comparison of very-high-frequency ultrasound assessment of radial arterial wall layers after first and repeated transradial coronary procedures. JOURNAL OF GERIATRIC CARDIOLOGY : JGC 2017; 14:245-253. [PMID: 28663762 PMCID: PMC5483593 DOI: 10.11909/j.issn.1671-5411.2017.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
BACKGROUND Transradial coronary procedure (TRP) traumatizes the radial artery (RA), especially resulting in changes to arterial wall morphology. This study explored the significance of the early onset of traumatic effects to wall layers of the RA following the first TRP (FTRP) and repeat TRP (RTRP) using very-high-frequency ultrabiomicroscopy (VHFUBM). METHODS A total of 1431 patients that received TRP were divided into the FTRP group that comprised 781 patients and the RTRP group that comprised 650 patients depending on the number of procedures. Two-dimensional RA images were acquired by 30-55 MHz ultrasound one day before and one day after the procedure. RESULTS After TRP, the incidence of intimal tears, medial dissections and external elastic lamina fracture were greater in the RTRP (P < 0.001). The RTRP group showed significantly thicker intimal thickness (IT), media thickness (MT), adventitia thickness and all complex layer thicknesses as compared with the FTRP group (P < 0.001). CONCLUSIONS Multivariate linear regression analysis discovered that repeated TRP and other observations were independent predictors of increased IT in post-operative RA. VHFUBM provides an approach to study structural and histopathological injury in the wall layers of RA which showed increased trauma to the RA following RTRP.
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15
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Zeki Al Hazzouri A, Vittinghoff E, Sidney S, Reis JP, Jacobs DR, Yaffe K. Intima-Media Thickness and Cognitive Function in Stroke-Free Middle-Aged Adults: Findings From the Coronary Artery Risk Development in Young Adults Study. Stroke 2015; 46:2190-6. [PMID: 26106116 PMCID: PMC4519386 DOI: 10.1161/strokeaha.115.008994] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Accepted: 05/19/2015] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND PURPOSE The relationship between carotid artery intima-media thickness (IMT) and cognitive function in midlife remains relatively unexplored. We examined the association between IMT and cognitive function in a middle-aged epidemiological cohort of 2618 stroke-free participants. METHODS At the year 20 visit (our study baseline), participants from the Coronary Artery Risk Development in Young Adults study had IMT measured by ultrasound at the common carotid artery. Five years later, participants completed a cognitive battery consisting of the Rey Auditory-Verbal Learning Test of verbal memory, the Digit Symbol Substitution Test of processing speed, and the Stroop test of executive function. We transformed cognitive scores into standardized z scores, with negative values indicating worse performance. RESULTS Mean age at baseline was 45.3 years (SD, 3.6). Greater IMT (per 1 SD difference of 0.12 mm) was significantly associated with worse performance on all cognitive tests (z scores) in unadjusted linear regression models (verbal memory, -0.16; 95% confidence interval [CI], -0.20 to -0.13; processing speed, -0.23; 95% CI, -0.27 to -0.19; and executive function, -0.17; 95% CI, -0.20 to -0.13). In models adjusted for sociodemographics and vascular risk factors that lie earlier in the causal pathway, greater IMT remained negatively associated with processing speed (-0.06; 95% CI, -0.09 to -0.02; P, 0.003) and borderline associated with executive function (-0.03; 95% CI, -0.07 to 0.00; P, 0.07) but not with verbal memory. CONCLUSIONS We observed an association between greater IMT and worse processing speed-a key component of cognitive functioning-at middle age above and beyond traditional vascular risk factors. Efforts targeted at preventing early stages of atherosclerosis may modify the course of cognitive aging.
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Affiliation(s)
- Adina Zeki Al Hazzouri
- From the Division of Epidemiology and Population Health Sciences, Department of Public Health Sciences, University of Miami, FL (A.Z.A.H.); Departments of Epidemiology and Biostatistics (E.V., K.Y.), Psychiatry (K.Y.), and Neurology (K.Y.), University of California San Francisco; San Francisco Veterans Affairs Medical Center, San Francisco, CA (K.Y.); Kaiser Permanente Division of Research, Oakland, CA (S.S.); Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD (J.P.R.); and Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis (D.R.J.).
| | - Eric Vittinghoff
- From the Division of Epidemiology and Population Health Sciences, Department of Public Health Sciences, University of Miami, FL (A.Z.A.H.); Departments of Epidemiology and Biostatistics (E.V., K.Y.), Psychiatry (K.Y.), and Neurology (K.Y.), University of California San Francisco; San Francisco Veterans Affairs Medical Center, San Francisco, CA (K.Y.); Kaiser Permanente Division of Research, Oakland, CA (S.S.); Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD (J.P.R.); and Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis (D.R.J.)
| | - Stephen Sidney
- From the Division of Epidemiology and Population Health Sciences, Department of Public Health Sciences, University of Miami, FL (A.Z.A.H.); Departments of Epidemiology and Biostatistics (E.V., K.Y.), Psychiatry (K.Y.), and Neurology (K.Y.), University of California San Francisco; San Francisco Veterans Affairs Medical Center, San Francisco, CA (K.Y.); Kaiser Permanente Division of Research, Oakland, CA (S.S.); Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD (J.P.R.); and Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis (D.R.J.)
| | - Jared P Reis
- From the Division of Epidemiology and Population Health Sciences, Department of Public Health Sciences, University of Miami, FL (A.Z.A.H.); Departments of Epidemiology and Biostatistics (E.V., K.Y.), Psychiatry (K.Y.), and Neurology (K.Y.), University of California San Francisco; San Francisco Veterans Affairs Medical Center, San Francisco, CA (K.Y.); Kaiser Permanente Division of Research, Oakland, CA (S.S.); Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD (J.P.R.); and Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis (D.R.J.)
| | - David R Jacobs
- From the Division of Epidemiology and Population Health Sciences, Department of Public Health Sciences, University of Miami, FL (A.Z.A.H.); Departments of Epidemiology and Biostatistics (E.V., K.Y.), Psychiatry (K.Y.), and Neurology (K.Y.), University of California San Francisco; San Francisco Veterans Affairs Medical Center, San Francisco, CA (K.Y.); Kaiser Permanente Division of Research, Oakland, CA (S.S.); Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD (J.P.R.); and Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis (D.R.J.)
| | - Kristine Yaffe
- From the Division of Epidemiology and Population Health Sciences, Department of Public Health Sciences, University of Miami, FL (A.Z.A.H.); Departments of Epidemiology and Biostatistics (E.V., K.Y.), Psychiatry (K.Y.), and Neurology (K.Y.), University of California San Francisco; San Francisco Veterans Affairs Medical Center, San Francisco, CA (K.Y.); Kaiser Permanente Division of Research, Oakland, CA (S.S.); Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD (J.P.R.); and Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis (D.R.J.)
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Guven B, Demirpence S, Yilmazer MM, Carti OU, Tavli V, Mese T, Oner T. Arterial function and anatomy in obese children with cardiovascular risk factors. Pediatr Int 2013; 55:696-702. [PMID: 23829461 DOI: 10.1111/ped.12177] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 06/26/2013] [Accepted: 06/27/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND Limited data are available related to the effects of cardiovascular risk factors on abdominal arterial stiffness using carotid and brachial artery indices. Therefore, we aimed to determine arterial changes in obese children and investigate any relation with cardiovascular risk factors. METHODS Thirty-eight obese children (mean body mass index: 28.35 ± 4.65 kg/m(2) ) and 34 age- and sex-matched healthy subjects underwent ultrasound measurements of abdominal, carotid and brachial arteries. Aortic strain, pressure strain elastic modulus (Ep), pressure strain normalized by diastolic blood pressure (Ep*), carotid intima-media thickness, carotid artery compliance, brachial artery flow-mediated dilatation, and well-known cardiovascular risk factors were assessed in the obese children. RESULTS Obese children had significantly higher Ep and Ep* parameters than the healthy controls (mean: 242.6 [107.1-666.6], 164.2 [110.6-231.5]; P < 0.001, and mean: 3.39 [1.76-7.5], 2.64 [1.46-4.2]; P < 0.001, respectively). Ep and Ep* were significantly correlated with the homeostasis model assessment of insulin resistance (r = 0.587, P = 0.001; r = 0.467, P = 0.004, respectively). Receiver-operator curve analysis of Ep for identification of children with cardiovascular risk factors showed that the area under the curve for hyperinsulinemia was 0.80 (P < 0.001) and for hypertriglyceridemia was 0.62 (P < 0.01). CONCLUSIONS Abdominal arterial stiffness parameters as well as carotid intima-media thickness and brachial arterial flow-mediated dilatation assessment were similarly useful in identifying obese children with cardiovascular risk factors. Insulin resistance is related with the augmented rigidity of the aortic wall in obese children.
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Affiliation(s)
- Baris Guven
- Department of Pediatric Cardiology, Izmir Dr Behcet Uz Children's Hospital, Izmir, Turkey
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17
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Di Vito L, Porto I, Burzotta F, Trani C, Pirozzolo G, Niccoli G, Leone A, Crea F. Radial artery intima-media ratio predicts presence of coronary thin-cap fibroatheroma: A frequency domain-optical coherence tomography study. Int J Cardiol 2013; 168:1917-22. [DOI: 10.1016/j.ijcard.2012.12.082] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2012] [Revised: 11/05/2012] [Accepted: 12/26/2012] [Indexed: 01/19/2023]
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Abstract
Abstract
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Abstract
OBJECTIVE To minimize maintenance immunosuppression in upper-extremity transplantation to favor the risk-benefit balance of this procedure. BACKGROUND Despite favorable outcomes, broad clinical application of reconstructive transplantation is limited by the risks and side effects of multidrug immunosuppression. We present our experience with upper-extremity transplantation under a novel, donor bone marrow (BM) cell-based treatment protocol ("Pittsburgh protocol"). METHODS Between March 2009 and September 2010, 5 patients received a bilateral hand (n = 2), a bilateral hand/forearm (n = 1), or a unilateral (n = 2) hand transplant. Patients were treated with alemtuzumab and methylprednisolone for induction, followed by tacrolimus monotherapy. On day 14, patients received an infusion of donor BM cells isolated from 9 vertebral bodies. Comprehensive follow-up included functional evaluation, imaging, and immunomonitoring. RESULTS All patients are maintained on tacrolimus monotherapy with trough levels ranging between 4 and 12 ng/mL. Skin rejections were infrequent and reversible. Patients demonstrated sustained improvements in motor function and sensory return correlating with time after transplantation and level of amputation. Side effects included transient increase in serum creatinine, hyperglycemia managed with oral hypoglycemics, minor wound infection, and hyperuricemia but no infections. Immunomonitoring revealed transient moderate levels of donor-specific antibodies, adequate immunocompetence, and no peripheral blood chimerism. Imaging demonstrated patent vessels with only mild luminal narrowing/occlusion in 1 case. Protocol skin biopsies showed absent or minimal perivascular cellular infiltrates. CONCLUSIONS Our data suggest that this BM cell-based treatment protocol is safe, is well tolerated, and allows upper-extremity transplantation using low-dose tacrolimus monotherapy.
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Celik T, Yuksel UC, Fici F, Celik M, Yaman H, Kilic S, Iyisoy A, Dell'oro R, Grassi G, Yokusoglu M, Mancia G. Vascular inflammation and aortic stiffness relate to early left ventricular diastolic dysfunction in prehypertension. Blood Press 2012; 22:94-100. [PMID: 22988827 DOI: 10.3109/08037051.2012.716580] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Prehypertension is characterized by an increased cardiovascular risk and by an increased prevalence of target organ damage compared with the pure normotensive state. The present study was designed to assess in prehypertensive subjects the possible relationships between early left ventricular dysfunction, vascular inflammation and aortic stiffness. The study population consisted of 31 untreated prehypertensive subjects (age: 34 ± 6 years, mean ± SD) and 31 age-matched pure normotensive controls. Left ventricular function was assessed by echocardiography, aortic distensibility parameters were derived from aortic diameters measured by ultrasonography, and high-sensitivity C-reactive protein was assessed by latex-enhanced reagent. Prehypertensive subjects displayed a significantly lower E/A ratio and a significantly greater deceleration time and isovolumetric relaxation time compared with normotensive controls. They also displayed aortic systolic diameter, diastolic diameter and mean aortic stiffness index beta significantly increased while systo-diastolic diameter change, mean aortic distensibility and aortic strain were significantly reduced compared with controls. Values of inflammatory markers were increased. At multiple regression analysis, E/A ratio was significantly related to high-sensitivity C-reactive protein and aortic stiffness index beta, after correction for age, left ventricular mass index and mean blood pressure (β coefficient = -0.49, overall r(2) = 0.24, p = 0.01 and β coefficient =-0.46, overall r(2) = 0.21, p = 0.02, respectively). Thus, in prehypertension, left ventricular dysfunction is significantly related to vascular inflammation and aortic stiffness, suggesting that early cardiac and vascular alterations may have an increased inflammatory process as a common pathophysiological link.
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Affiliation(s)
- Turgay Celik
- School of Medicine, Department of Cardiology, Gulhane Military Medical Academy, Etlik-Ankara, Turkey
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Ring M, Farahnak P, Gustavsson T, Nilsson IL, Eriksson MJ, Caidahl K. Arterial structure and function in mild primary hyperparathyroidism is not directly related to parathyroid hormone, calcium, or vitamin D. PLoS One 2012; 7:e39519. [PMID: 22815708 PMCID: PMC3397993 DOI: 10.1371/journal.pone.0039519] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Accepted: 05/26/2012] [Indexed: 01/08/2023] Open
Abstract
Objective Elevated levels of calcium and parathyroid hormone (PTH), characteristics of primary hyperparathyroidism (PHPT), may be associated with cardiovascular morbidity and mortality in the general population. We evaluated the possible vascular effects of these risk factors in patients with mild PHPT by using standard methods and new imaging techniques. Design A prospective case-control study. Subjects and Methods Forty-eight patients with mild PHPT without any known cardiovascular risk factors were studied at baseline and at one year after parathyroidectomy (PTX) in comparison with 48 healthy age- and gender-matched controls. We measured biochemical variables, augmentation index (AIx), aortic pulse wave velocity (PWVao), radial (IMTrad) and common carotid artery (IMTcca) intima media thicknesses, and the grayscale median (IM-GSM) of the latter. Results No significant differences were observed between PHPT patients and controls at baseline for AIx (28.6±12.2 vs. 27.7±12.8%), IMTrad (0.271±0.060 vs. 0.255±0.053 mm), IMTcca (0.688±0.113 vs. 0.680±0.135 mm), or IM-GSM (82.3±17.2 vs. 86.5±15.3), while PWVao was slightly higher in patients (8.68±1.50 vs. 8.13±1.55, p<0.05). Systolic blood pressure (SBP), calcium, and PTH were higher in patients compared with controls, and decreased after PTX, while vitamin D was lower in patients and increased after PTX. While AIx, PWVao, IMTrad, and IMTcca were related to SBP, neither correlated to vitamin D levels. Only PWVao correlated weakly to plasma PTH (r = 0.29, p<0.01) and ionized calcium (r = 0.22, p<0.05) but showed no relation when age and SBP were adjusted for. Conclusion We found normal arterial function despite high calcium, PTH, and low vitamin D levels, in patients with mild PHPT without cardiovascular risk factors. The cardiovascular risk associated with low vitamin D and/or high PTH and calcium levels may be explained by their coupling to blood pressure and other risk factors rather than direct effects on arterial structure.
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Affiliation(s)
- Margareta Ring
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
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Kaufman CL, Ouseph R, Blair B, Kutz JE, Tsai TM, Scheker LR, Tien HY, Moreno R, Ozyurekoglu T, Banegas R, Murphy E, Burns CB, Zaring R, Cook DF, Marvin MR. Graft vasculopathy in clinical hand transplantation. Am J Transplant 2012; 12:1004-16. [PMID: 22325051 DOI: 10.1111/j.1600-6143.2011.03915.x] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Allogeneic hand transplantation is now a clinical reality. While results have been encouraging, acute rejection rates are higher than in their solid-organ counterparts. In contrast, chronic rejections, as defined by vasculopathy and/or fibrosis and atrophy of skin and other tissues, as well as antibody mediated rejection, have not been reported in a compliant hand transplant recipient. Monitoring vascularized composite allograft (VCA) hand recipients for rejection has routinely involved punch skin biopsies, vascular imaging and graft appearance. Our program, which has transplanted a total of 6 hand recipients, has experience which challenges these precepts. We present evidence that the vessels, both arteries and veins may also be a primary target of rejection in the hand. Two of our recipients developed severe intimal hyperplasia and vasculopathy early post-transplant. An analysis of events and our four other patients has shown that the standard techniques used for surveillance of rejection (i.e. punch skin biopsies, DSA and conventional vascular imaging studies) are inadequate for detecting the early stages of vasculopathy. In response, we have initiated studies using ultrasound biomicroscopy (UBM) to evaluate the vessel wall thickness. These findings suggest that vasculopathy should be a focus of frequent monitoring in VCA of the hand.
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Affiliation(s)
- C L Kaufman
- Christine M. Kleinert Institute, Louisville, KY, USA.
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Eklund C, Friberg P, Gan LM. High-resolution radial artery intima-media thickness and cardiovascular risk factors in patients with suspected coronary artery disease – Comparison with common carotid artery intima-media thickness. Atherosclerosis 2012; 221:118-23. [DOI: 10.1016/j.atherosclerosis.2011.12.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Revised: 12/20/2011] [Accepted: 12/22/2011] [Indexed: 10/14/2022]
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Impact of prehypertension on carotid artery intima–media thickening: Actual or masked? Atherosclerosis 2011; 214:215-9. [DOI: 10.1016/j.atherosclerosis.2010.10.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 10/16/2010] [Accepted: 10/19/2010] [Indexed: 11/23/2022]
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