Textbook Of Arterial Stiffness And Pulsatile Hemodynamics In Health And Disease
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Textbook Of Arterial Stiffness And Pulsatile Hemodynamics In Health And Disease
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Author : Julio A. Chirinos
language : en
Publisher: Academic Press
Release Date : 2022-03-28
Textbook Of Arterial Stiffness And Pulsatile Hemodynamics In Health And Disease written by Julio A. Chirinos and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-03-28 with Science categories.
Textbook of Arterial Stiffness and Pulsatile Hemodynamics in Health and Disease, Two Volume Set covers the principles, physiology, biologic pathways, clinical implications and therapeutics surrounding arterial stiffness and pulsatile hemodynamics, along with a thorough overview of the field. The book presents complex engineering concepts in a way that those in science and medicine can more easily understand. It includes detailed illustrations. Additionally, it presents advanced bioengineering concepts in boxes for readers who wants more in-depth biophysical knowledge. This is a must-have reference for students, researchers and clinicians interested in learning more about this field. Incorporates case studies and calculations/worked examples with mathematical principles explained in a conceptual manner without complicated formulas Features chapter contributions from leading international researchers and clinicians Covers principles, physiology, biologic pathways, clinical implications and therapeutics
Textbook Of Arterial Stiffness And Pulsatile Hemodynamics In Health And Disease
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Author : Julio A. Chirinos
language : en
Publisher: Academic Press
Release Date : 2021-10-01
Textbook Of Arterial Stiffness And Pulsatile Hemodynamics In Health And Disease written by Julio A. Chirinos and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-01 with Science categories.
Arterial Stiffness and Pulsatile Hemodynamics in Health and Disease cover the principles, physiology, biologic pathways, clinical implications and therapeutics surrounding the topic, providing a thorough overview of the field and presenting complex engineering concepts in a way that those in science and medicine can more easily understand. Additionally, advanced bioengineering concepts are presented in boxes for the reader who wants more in-depth biophysical knowledge. This is a must-have reference for students, researchers and clinicians interested in learning more about this field. It includes detailed illustrations, animations and slideshows to assist readers with learning objectives. Provides a comprehensive review of the clinical implications of arterial stiffness and pulsatile hemodynamics and its role in human disease Incorporates case studies and calculations/worked examples with mathematical principles explained in a conceptual manner without complicated formulas Features chapter contributions from leading international researchers and clinicians
Home Blood Pressure In Health And Disease
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Author : Peder af Geijerstam
language : en
Publisher: Linköping University Electronic Press
Release Date : 2024-07-08
Home Blood Pressure In Health And Disease written by Peder af Geijerstam and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-07-08 with categories.
Hypertension is the most common preventable cause of premature all-cause mortality, primarily from cardiovascular disease (CVD). Individuals with dysglycemia, including prediabetes and diabetes, are at increased risk. Licorice intake raises blood pressure (BP) through the effects of glycyrrhizic acid (GA), but the true limit of safe intake is uncertain. Home BP has several benefits over BP measured at a clinic, including a higher predictive value for CVD. By combining office and home BP, it is possible to diagnose masked hypertension (MH), in which home but not office BP is elevated, and white coat hypertension (WCH), in which office but not home BP is elevated. The aim of this thesis was to advance our knowledge on home BP in relation to dysglycemia, markers of CVD, and licorice intake. The first 3 papers used data from the Linköping cohort of the prospective Swedish CArdioPulmonary bioImage Study (SCAPIS). Study IV was a randomized controlled cross-over study. Data was obtained from questionnaires, blood samples and office and home BP measurements. In studies I-III, pulse wave velocity (PWV), coronary artery calcium score (CACS), and carotid artery plaques as markers of CVD were also included. In Study I, we examined 5025 men and women aged 50-64 years old for the relation between dysglycemia and home BP. Both the systolic office and home BP measurements were positively as-sociated with dysglycemia. Participants with dysglycemia vs normoglycemia more often had MH. The findings were in line with previous research and strengthened the association between dysglycemia and MH. In Study II, we examined the associations between MH and markers of CVD in 4122 individuals without BP-lowering treatment. Of participants, 4.2% had MH, and these were more often men and had higher BMI than those with normotension. Participants with MH also had higher odds for CACS ≥100, an as-sociation which has previously been suggested as a trend. In Study III, we examined the relation between soluble P-se-lectin (sP-selectin) as a measure of thrombotic activity, plasma high-sensitivity C-reactive protein (hsCRP) as a measure of inflammation, and home BP in 4548 participants. Both markers were higher in each hypertension phenotype compared with sustained normotension. The quartile of participants with the highest sP-se-lectin values had higher odds for CACS ≥100 and carotid artery plaques. The association between sP-selectin and sustained hyper-tension was novel and not affected by adjustments for hsCRP. In Study IV, 28 healthy participants aged 18-30 years old were evaluated for the effects of a daily intake of licorice containing 100 mg of GA compared with a control product for 2 weeks. During the licorice intake period, the systolic home BP increased with 3.1 mmHg, and the suppression of serum aldosterone and plasma renin levels indicated that this was due to the licorice intake. In conclusion, this thesis further strengthens the idea that both home and office BP measurements have values beyond that of the other, and that home BP may be most valuable in individuals with dysglycemia and obesity, and in men. Finally, licorice may be more potent than previously known, suggesting the need for increased awareness. Förhöjt blodtryck (hypertoni) är den huvudsakliga orsaken till förtida död, främst genom hjärtkärlsjukdom. Flera mekanismer och riskfaktorer som kan förklara hypertoni har identifierats. Individer med förhöjt blodsocker, inklusive diabetes och dess förstadier, lö-per ökad risk för hjärtkärlsjukdom, och förhöjt blodsocker samexisterar ofta med hypertoni. Lakritsintag höjer blodtrycket genom dess beståndsdel glycyrrhizinsyra (GA), och även om både Europeiska unionen och Världshälsoorganisationen har föreslagit att ett intag av upp till 100 mg per dag sannolikt är säkert att förtära för de flesta individer, är den gränsnivån osäker. Jämfört med blodtryck som mäts på mottagningen av medicinskt utbildad personal har hemblodtryck flera fördelar, inklusive starkare koppling till framtida hjärtkärlsjukdom. Genom att kombinera mottagnings- och hemblodtryck går det att diagnosticera maskerad hypertoni (MH), då hemblodtrycket är förhöjt trots normalt mottagningsblodtryck, och vitrockhypertoni (WCH), då mottagningsblodtrycket men inte hemblodtrycket är förhöjd. Syftet med denna avhandling var att vidare utforska hemblodtryck i relation till förhöjt blodsocker, markörer för hjärtkärlsjukdom, och lakritsintag. Avhandlingens fyra arbeten baseras på två studier. I de första tre arbetena analyserades data från Linköpings-kohorten i the Swedish CArdioPulmonary bioImage Study (SCAPIS), en prospektiv studie av män och kvinnor i åldrarna 50-64 år. I det sista arbetet analyserades data från en lottad överkorsningsstudie. Data i studierna bestod av enkätsvar, blodprover, samt mottagnings- och hemblodtrycksmätningar. I studie I-III ingick även pulsvågshastighet, kalkhalt i kranskärlen vid skiktröntgen (CACS) och plack-förekomst i halspulsådrorna vid ultraljudsundersökning som markörer på hjärtkärlsjukdom. I det första delarbetet undersökte vi data för 5025 individer avseende blodtryck och förhöjt blodsocker. Både mottagnings- och hemblodtryck var associerat med förhöjt blodsocker. Deltagare med förhöjt blodsocker hade oftare MH jämfört med de med normalt blodsocker, och skillnaden mellan mottagnings- och hemblodtrycket var omvänt associerat med långtidsblodsocker. Fynden var i linje med tidigare forskning, och stärkte kända kopplingar mellan MH och förhöjt blodsocker. Förklaringarna till detta samband är okända, men möjliga sådana inkluderar selektiva effekter av blodtryckssänkande läkemedel hos individer med förhöjt blodsocker, samsjukligheter såsom fetma, och aktivering av det sympatiska nervsystemet. I det andra delarbetet analyserade vi förekomst av och associationer för MH hos 4122 individer utan pågående blodtryckssänkande läkemedelsbehandling. Av dessa hade 4.2% MH, och dessa var oftare män och hade högre BMI än de med normalt blodtryck. Deltagare med MH hade också högre pulsvågshastighet och oftare förhöjt CACS. Associationen mellan MH och markörer för hjärt-kärlsjukdom var tidigare känd och styrktes av våra resultat. I det tredje delarbetet undersökte vi 4548 deltagare avseende två blodprovsmarkörer: en för blodplättsaktivitet, lösligt P-selektin i blodet, och en för inflammation, högkänsligt C-reaktivt protein (hsCRP). Både P-selektin och hsCRP var högre vid hypertoni, oavsett typ, jämfört med vid normalt blodtryck. Den kvartil av deltagarna som hade högst P-selektin hade oftare WCH och hypertoni både hemma och på mottagningen, jämfört med normalt blodtryck, och oftare förhöjt CACS och plack i halspulsådrorna. Associationen mellan P-selektin och högt blodtryck både hemma och på mottagningen var inte tidigare känd, och påverkades inte av justering för hsCRP, vilket antydde att den inte enbart förklarades av inflammation. I det fjärde och sista delarbetet inkluderas 28 friska individer i åldrarna 18 till 30 år. I en överkorsningsstudie bad vi deltagarna att dagligen under 2 veckor inta antingen lakrits med ett innehåll av 100 mg GA eller en kontrollprodukt utan lakrits. Deltagarna undersöktes med avseende på hemblodtryck, liksom hormonnivåer i blodet. Under lakrits- jämfört med kontrollperioden steg det systoliska hemblodtrycket med 3,1 mmHg, och hormonnivåerna påverkades på ett sätt som talade för att GA påverkade blodtrycket. Sammanfattningsvis stärker studiernas resultat kunskapen om att blodtrycksmätning både på mottagningen och i hemmet är värdefullt både var för sig och tillsammans, och att hemblodtryck är särskilt värdefullt hos individer med förhöjt blodsocker eller övervikt, samt hos män. Slutligen visade sig små mängder lakrits påverka kroppen mer än tidigare känt, och ökad medvetenhet och bättre etikettering av lakritsprodukter kan vara befogad.
Heart Failure With Preserved Ejection Fraction An Issue Of Cardiology Clinics E Book
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Author : Scott L. Hummel
language : en
Publisher: Elsevier Health Sciences
Release Date : 2022-10-13
Heart Failure With Preserved Ejection Fraction An Issue Of Cardiology Clinics E Book written by Scott L. Hummel and has been published by Elsevier Health Sciences this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-13 with Medical categories.
In this issue of Cardiology Clinics, guest editors Drs. Scott Hummel and Matthew Konerman bring their considerable expertise to the topic of Heart Failure with Preserved Ejection Fraction. Top experts in the field cover key topics such as risk factors for heart failure with preserved ejection fraction (HFpEF); cardiopulmonary stress testing in HFpEF; hemodynamic assessment in HFpEF; the role of multi-modality imaging in the evaluation of HFpEF; and more. Contains 13 relevant, practice-oriented topics including pharmacologic, non-pharmacologic, and device therapy for HFpEF; geriatric domains in patients with HFpEF; pulmonary hypertension in HFpEF; infiltrative, genetic, and other non-standard causes of HFpEF; echocardiography in HFpEF; and more. Provides in-depth clinical reviews on heart failure with preserved ejection fraction, offering actionable insights for clinical practice. Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.
Early Vascular Aging Eva
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Author : Pedro Guimarães Cunha
language : en
Publisher: Elsevier
Release Date : 2024-02-29
Early Vascular Aging Eva written by Pedro Guimarães Cunha and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-02-29 with Medical categories.
Early Vascular Aging (EVA): New Directions in Cardiovascular Protection, Second Edition continues to be the most comprehensive and authoritative resource on premature alterations in artery structure and function. The book presents a novel approach to the problem of cardiovascular disease, showing it in relation to great vessels disease and revealing a comprehensive approach to the problem of increased rigidity of the great vessels, its causes, and further consequences. This second edition contains completely updated content with expanded coverage of basic and translational research, systematic reviews of the most prominent literature, discussion of applicability of new evidence and more. Written by an international team of clinicians and researchers, this is a valuable resource to basic and translational scientists, clinical researchers and clinicians in the cardiovascular field interested in prevention, diagnosis and treatment of EVA. Contains all the relevant information available on the main paradigm shifts in vascular aging research, from different fields of knowledge (from basic biology to epidemiology) Reviews the most prominent evidence produced on early vascular aging (EVA), highlighting recent research advances, clinical applications, and research opportunities Formulates, in each chapter, a set of research questions that need to be addressed, challenging the vast research community to take on new directions and collaborations
Regulation Of Coronary Blood Flow
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Author : Michitoshi Inoue
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-09
Regulation Of Coronary Blood Flow written by Michitoshi Inoue and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-09 with Medical categories.
Research centering on blood flow in the heart continues to hold an important position, especially since a better understanding of the subject may help reduce the incidence of coronary arterial disease and heart attacks. This book summarizes recent advances in the field; it is the product of fruitful cooperation among international scientists who met in Japan in May, 1990 to discuss the regulation of coronary blood flow.
Prehypertension And Cardiometabolic Syndrome
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Author : Reuven Zimlichman
language : en
Publisher: Springer
Release Date : 2018-12-06
Prehypertension And Cardiometabolic Syndrome written by Reuven Zimlichman and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-06 with Medical categories.
This book sheds new light on the management of patients with borderline cardiovascular risk factors in order to prevent their progression to end organ damage. The book stimulates discussion of this poorly understood condition and lays the groundwork for developing recommendations and guidelines. While the diagnostic and therapeutic approach to full-blown diabetes, hypertension, dyslipidemia and obesity is well defined, there is still a lack of clear understanding and guidelines as far as patients with borderline conditions – especially when multiple – are concerned. Moreover, end-organ damage depends on several factors, including genetic factors, making it difficult to predict its extent. As such, the gradual transition from a healthy subject to one with functional hemodynamic changes, and then one with structurally asymptomatic changes and lastly to overt disease needs further investigation. In order to address these knowledge gaps, the book covers a broad variety of topics, making it a valuable tool for identifying which asymptomatic subjects could profit from being appropriately screened and at what stage. Furthermore it offers insights into better treating these patients to prevent their progression to overt disease. The book appeals to cardiologists, primary care physicians and all those healthcare professional looking to optimize the management of these complex and often undiagnosed cases.
Pulse Waves
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Author : Paolo Salvi
language : en
Publisher: Springer
Release Date : 2016-10-29
Pulse Waves written by Paolo Salvi and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-29 with Medical categories.
This new, revised and updated edition takes into account the most recent advances in the understanding of human pathophysiology. The book presents the complex basic principles of vascular hemodynamics and its pathophysiologie in a direct and effective way, stressing the importance of the mechanical properties of large arteries in the origin of blood pressure. The readily understandable text, supported by helpful images, describes the elements that define blood pressure and explains such important concepts as pulse wave velocity, central blood pressure, reflected waves, and pulse pressure amplification. Entirely new chapters are included on the sympathetic nervous system and arterial stiffness and on the role played by arterial stiffness in influencing blood pressure variability. The book will enable the physician to answer some of the key questions encountered when addressing the problem of arterial hypertension in everyday clinical practice: How is blood pressure generated? How should blood pressure values be interpreted? Is systolic blood pressure of greater importance than diastolic blood pressure?
Regulation Of Tissue Oxygenation Second Edition
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Author : Roland N. Pittman
language : en
Publisher: Biota Publishing
Release Date : 2016-08-18
Regulation Of Tissue Oxygenation Second Edition written by Roland N. Pittman and has been published by Biota Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-18 with Medical categories.
This presentation describes various aspects of the regulation of tissue oxygenation, including the roles of the circulatory system, respiratory system, and blood, the carrier of oxygen within these components of the cardiorespiratory system. The respiratory system takes oxygen from the atmosphere and transports it by diffusion from the air in the alveoli to the blood flowing through the pulmonary capillaries. The cardiovascular system then moves the oxygenated blood from the heart to the microcirculation of the various organs by convection, where oxygen is released from hemoglobin in the red blood cells and moves to the parenchymal cells of each tissue by diffusion. Oxygen that has diffused into cells is then utilized in the mitochondria to produce adenosine triphosphate (ATP), the energy currency of all cells. The mitochondria are able to produce ATP until the oxygen tension or PO2 on the cell surface falls to a critical level of about 4–5 mm Hg. Thus, in order to meet the energetic needs of cells, it is important to maintain a continuous supply of oxygen to the mitochondria at or above the critical PO2 . In order to accomplish this desired outcome, the cardiorespiratory system, including the blood, must be capable of regulation to ensure survival of all tissues under a wide range of circumstances. The purpose of this presentation is to provide basic information about the operation and regulation of the cardiovascular and respiratory systems, as well as the properties of the blood and parenchymal cells, so that a fundamental understanding of the regulation of tissue oxygenation is achieved.
Organic Nitrates
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Author : P. Needleman
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Organic Nitrates written by P. Needleman and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Medical categories.
Nitroglycerin and other organic nitrates have been used for over a century in the treatment of angina pectoris. Millions of patients, throughout the world, have placed nitroglycerin tablets under the tongue and have experienced rapid and dramatic relief from the chest pain that frequently occurs as a manifestation of disease of the coronary arteries. The empirical observation of the safe use of nitrates for tile alleviation of the symptoms of angina have led to their widespread medical acceptance. The use of organic nitrates preceded any knowledge of their mechanism of action or their ultimate metabolic fate. Thus, more simply stated, although sub lingual nitrates helped the patients, little was known concerning what these drugs do to the body or what the body does to the drugs. A substantial number of investigators have focused on these questions especially during the last two decades. We now have considerably more insight into the pathways of degradation of organic nitrates and the relationship of the metabolic processes to the biological action of these agents. Similarly, considerable effort has been expended in understanding the mechanism of action of these agents directly on vascular smooth muscle and on cardiac work and performance. Finally, there is a more substantive understanding of the physiology of the coronary circulation as well as the" pathophysiologic manifestations of myocardial disease.