Cardiac Resynchronization Therapy pdf epub mobi txt 電子書 下載 在線閱讀 2026

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出版者:Blackwell Pub

作者:Yu, Cheuk-man (EDT)/ Hayes, David L. (EDT)/ Auricchio, Angelo (EDT)

出品人:

頁數:334

译者:

出版時間:

價格:104.95

裝幀:HRD

isbn號碼:9781405142823

叢書系列:

圖書標籤:

• 心髒再同步化治療
• 心力衰竭
• 心電生理學
• 起搏器
• 除顫器
• 心髒疾病
• 介入治療
• 電生理學
• 臨床電生理學
• 心髒功能不全

Advanced Topics in Molecular Cardiology: A Comprehensive Review Foreword This volume represents a significant contribution to the field of advanced molecular cardiology, synthesizing decades of research into a cohesive framework for understanding cardiac function at the subcellular and molecular levels. It moves beyond traditional anatomical descriptions to explore the intricate signaling pathways, genetic underpinnings, and novel therapeutic targets that define the modern approach to cardiovascular disease management. The editors have curated a collection of chapters written by leading international experts, ensuring that the material is both rigorously scientific and clinically relevant. This text is intended for advanced cardiology fellows, research scientists, and established clinicians seeking a deep, mechanistic understanding of heart muscle biology and pathology. --- Part I: Foundations of Cardiac Myocyte Biology Chapter 1: The Sarcomere Re-Examined: Contractile Apparatus Dynamics This chapter provides an in-depth analysis of the sarcomere, the fundamental contractile unit of the cardiomyocyte. It goes beyond the classic sliding filament model to explore the dynamic interplay of key regulatory proteins. Detailed focus is given to the role of the myosin heavy chain isoforms ($alpha$-MHC and $eta$-MHC) in regulating force generation and energy expenditure, particularly in the context of physiological hypertrophy versus pathological remodeling. We examine the structure and function of the thick and thin filaments, including the precise regulatory roles of troponin and tropomyosin complexes, utilizing recent cryogenic electron microscopy (cryo-EM) data to illustrate conformational changes under various calcium loads. Specific attention is paid to the titin-based passive stiffness mechanisms and how titin's elastic properties are modulated by post-translational modifications (PTMs), such as phosphorylation by kinases like $ ext{PKA}$ and $ ext{PKC}$. Chapter 2: Calcium Handling and Excitation-Contraction (E-C) Coupling Fidelity A thorough dissection of the calcium transient is presented, emphasizing the spatial and temporal control required for effective cardiac contraction and relaxation. This section meticulously details the molecular machinery: the L-type calcium channel ($ ext{L-Type } ext{Ca}^{2+} ext{ Channel}$, $ ext{Cav}1.2$), the ryanodine receptor ($ ext{RyR2}$) as the primary calcium release channel, and the sarcoplasmic reticulum $ ext{Ca}^{2+}$-$ ext{ATPase}$ ($ ext{SERCA2a}$) for calcium sequestration. We delve into the critical role of the sodium-calcium exchanger ($ ext{NCX}$) in calcium efflux and its bidirectional behavior under pathological conditions. The concept of "calcium clock" synchronization and the impact of microdomain signaling, involving the $ ext{Caveolae}$ and associated scaffolding proteins ($ ext{e.g.}$, $ ext{Filamin C}$), on ensuring precise $ ext{E-C}$ coupling fidelity are explored through experimental models. Chapter 3: Mitochondrial Bioenergetics and Cardiac Energetics The heart's unparalleled reliance on oxidative phosphorylation is the focus of this chapter. We analyze the structure and function of cardiac mitochondria, detailing the electron transport chain (ETC) complexes and the regulation of the $ ext{ATP}$ synthase. Significant space is dedicated to the substrate preference shift observed in failing hearts—the transition from fatty acid oxidation ($ ext{FAO}$) dominance to glucose utilization—and the molecular mechanisms driving this metabolic inflexibility. Emerging concepts regarding mitochondrial dynamics, including fusion and fission regulated by $ ext{Mfn1/2}$ and $ ext{Drp1}$, respectively, and their impact on cellular quality control are discussed. Furthermore, the role of the mitochondrial permeability transition pore ($ ext{mPTP}$) in orchestrating intrinsic apoptosis pathways is examined in detail. --- Part II: Molecular Basis of Pathophysiology Chapter 4: Genetic Determinants of Cardiomyopathy This chapter provides a comprehensive review of the molecular genetics underpinning inherited cardiomyopathies. We categorize the defects based on the affected sarcomeric or cytoskeletal component: dilated cardiomyopathy ($ ext{DCM}$), hypertrophic cardiomyopathy ($ ext{HCM}$), and restrictive cardiomyopathy ($ ext{RCM}$). Specific emphasis is placed on the functional consequences of mutations in genes such as MYH7, MYBPC3, TNNT2, and those affecting nuclear envelope components (e.g., LMNA). Advanced sequencing techniques, including whole-exome sequencing ($ ext{WES}$) and its application in stratifying risk, are reviewed. The chapter also addresses the complex, non-Mendelian inheritance patterns observed in some familial forms. Chapter 5: Signaling Pathways in Cardiac Remodeling and Fibrosis Cardiac remodeling is fundamentally a maladaptive molecular response. This section explores the critical signaling cascades activated by biomechanical stress and neurohormonal stimulation. We focus on the $ ext{Gq}$ and $ ext{G extbetagamma}$ protein-coupled receptor pathways, detailing the downstream activation of $ ext{MAPK}$ cascades ($ ext{ERK}, ext{p38}, ext{JNK}$) and their roles in hypertrophy and apoptosis. A substantial portion is devoted to the mechanisms of cardiac fibrosis. This includes the activation of cardiac fibroblasts, the role of $ ext{TGF-eta}$ superfamily signaling in driving the differentiation into myofibroblasts, and the complex regulation of the extracellular matrix ($ ext{ECM}$) turnover via matrix metalloproteinases ($ ext{MMPs}$) and their tissue inhibitors ($ ext{TIMPs}$). Chapter 6: Ischemia-Reperfusion Injury: Molecular Triggers and Protective Mechanisms Understanding the molecular cascade initiated by oxygen deprivation and subsequent reoxygenation is crucial for clinical management. This chapter dissects the primary molecular events during ischemia, including ATP depletion, acidosis, and the opening of the $ ext{mPTP}$. The reperfusion phase is analyzed through the lens of oxidative stress generation, specifically the role of $ ext{NADPH}$ oxidases ($ ext{NOXs}$) in producing reactive oxygen species ($ ext{ROS}$). We explore intrinsic cardioprotective strategies, focusing on the signaling pathways involved in ischemic preconditioning (IPC) and postconditioning, highlighting the involvement of the $ ext{K}_{ ext{ATP}}$ channel in conferring cellular resilience. --- Part III: Translational Frontiers and Novel Therapeutics Chapter 7: Epigenetic Regulation in Cardiovascular Disease This chapter bridges basic science and clinical translation by examining how environmental factors and disease states alter gene expression without changing the underlying $ ext{DNA}$ sequence. Detailed mechanistic studies on $ ext{DNA}$ methylation, histone modification (acetylation, methylation, phosphorylation), and the function of long non-coding $ ext{RNAs}$ ($ ext{lncRNAs}$) in regulating pathological gene programs are presented. Specific attention is given to $ ext{lncRNAs}$ implicated in hypertrophy and vascular inflammation, offering new avenues for targeted epigenetic modulation. Chapter 8: Gene Therapy and Nucleic Acid Delivery Systems The application of molecular tools to treat genetic heart disease is rapidly advancing. This section reviews the current landscape of cardiac gene therapy. We discuss the delivery vectors—focusing on optimized adeno-associated viruses ($ ext{AAVs}$) for cardiac tropism and safety profiles—and the targets being pursued, such as augmenting $ ext{SERCA2a}$ expression or inhibiting detrimental signaling molecules. A substantial section is dedicated to newer modalities, including antisense oligonucleotides ($ ext{ASOs}$) and small interfering $ ext{RNAs}$ ($ ext{siRNAs}$) designed to silence disease-causing genes or restore beneficial protein function post-transcriptionally. The chapter critically evaluates the challenges in achieving efficient and sustained gene transfer in the mature myocardium. Chapter 9: Small Molecule Modulation of Ion Channels and Excitable Tissue This final chapter reviews the rational design and optimization of small molecule drugs targeting cardiac excitability beyond standard antiarrhythmics. Focus is placed on novel modulators for potassium channels ($ ext{K}_{ ext{v}}$ channels) implicated in inherited arrhythmia syndromes (e.g., $ ext{LQTS}, ext{SQTS}$) and the development of selective modulators for specific $ ext{Ca}^{2+}$ regulatory proteins. Discussions include the pharmacological manipulation of the $ ext{NCX}$ to optimize calcium efflux in heart failure models and the emerging field of targeted kinase inhibitors designed to interrupt maladaptive signaling loops without broadly affecting essential housekeeping functions. The chapter concludes with a forward-looking perspective on precision pharmacology guided by an individual's molecular phenotype.

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當我看到這本書的題目時，我腦海中浮現齣一個畫麵：心髒如同一個精密的樂器，而“心髒再同步化治療”則像是一位高明的指揮傢，能夠讓所有樂器在最恰當的時機發齣最和諧的聲音。我一直對人體復雜的生理機製著迷，而心髒作為生命跳動的核心，其功能的恢復和優化更是吸引我。我猜測，這本書大概會深入探討心肌收縮不同步的病理機製，並詳細闡述CRT技術如何通過電生理調控來糾正這種失序。我想知道，CRT設備是如何精確地識彆並乾預異常的心髒電信號的？它的工作原理是怎樣的？書中是否會涵蓋不同類型CRT設備的介紹，例如雙心室起搏、三心室起搏等，以及它們各自的適應癥和技術優勢？另外，我也對CRT治療的長期效果和潛在並發癥感到好奇，希望書中能有相關的討論，為我提供一個全麵的認知。

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我是一名對科技在醫療領域應用充滿熱情的人，而“心髒再同步化治療”這個書名，立刻點燃瞭我對前沿醫療技術的好奇心。我直覺地認為，這本書很可能是在介紹一種通過精密的技術手段，來改善心髒功能，特彆是針對心力衰竭等疾病的治療方法。我非常想瞭解，這種“再同步化”具體指的是什麼？它是否涉及到某種植入式電子設備，類似於我們在電影或新聞裏看到的那種幫助心髒維持正常跳動的裝置？如果是的話，那麼這種裝置是如何工作的？它又是如何實現“再同步”的呢？我更感興趣的是，這種療法在技術層麵上是如何實現的，比如它是否運用瞭先進的算法來分析心髒的電信號，並根據分析結果進行精確的調控？這本書是否會深入到CRT設備的設計原理、植入過程以及術後的數據監測等方麵？我想知道，這項技術是如何幫助那些心髒功能減弱的患者，重新獲得更好的生活質量。

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說實話，我對醫學的瞭解並不算深入，但“心髒再同步化治療”這個書名，聽起來就有一種能夠“拯救”心髒、讓它重新煥發生機的感覺。我很好奇，這是一種什麼樣的治療方法？它是否能幫助那些心力衰竭的患者，讓他們不再那麼喘不上氣，精力不濟？我猜想，這應該是一種比較現代的治療手段，可能涉及到一些電子設備。書中是否會解釋，為什麼有些人的心髒跳動會變得“不同步”，以及這種“不同步”會對身體造成什麼樣的影響？我更想知道，CRT這個治療方法是如何具體操作的，比如是不是需要做一個小手術，然後植入一個東西在身體裏？它會不會像修補一個損壞的機器零件一樣，讓心髒重新協調一緻地工作？我希望這本書能夠用一種比較容易理解的方式，給我講清楚這個過程，讓我這個外行人也能明白，這項技術是如何為患者帶來福音的。

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初拿到這本書，我抱著極大的期待。封麵設計簡潔，色調沉穩，給人一種專業且值得信賴的感覺。我最近在關注心髒健康領域的一些進展，尤其是關於心力衰竭的治療，而“心髒再同步化治療”這個概念本身就充滿瞭吸引力。我曾經聽過一些醫生提及這項技術，但瞭解得並不深入。我希望這本書能係統地介紹這項療法的原理，比如它是如何通過起搏器來改善心肌收縮不同步的問題，以及它在實際臨床應用中的具體流程。我特彆好奇，對於不同類型的心力衰竭患者，CRT（心髒再同步化治療）的適用性和效果會有哪些差異？書中是否會深入探討患者的選擇標準，比如射血分數、QRS波群寬度、心肌瘢痕等關鍵指標？此外，作為讀者，我更希望看到一些實際的病例分析，能夠生動地展示CRT是如何改變患者的生活質量，讓他們重新獲得活力。不知道這本書會不會包含一些關於CRT植入手術的技術細節，以及術後的管理和隨訪策略？這些都是我非常關心的問題，我期待能從中獲得一些啓發和知識。

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我是一名對醫學領域充滿好奇的普通讀者，偶然間在書店瞥見瞭這本書的標題——“心髒再同步化治療”。這個術語對我來說相當陌生，但“心髒”、“再同步化”、“治療”這些詞語組閤在一起，立刻勾起瞭我的興趣。我猜想，這本書應該是在講述一種能夠幫助心髒恢復正常節律的先進醫療技術。我非常想知道，這種“再同步化”究竟是如何實現的？它是否涉及到某種特殊的電子設備，就像心律失常患者使用的那種起搏器一樣？如果真是如此，那麼這種療法與傳統的起搏器治療又有什麼區彆呢？我希望書中能用通俗易懂的語言，嚮我解釋清楚其中的原理，哪怕是通過一些形象的比喻。此外，我也很好奇，這種治療方法主要針對的是哪些心髒疾病？是所有類型的心力衰竭都可以受益，還是隻適用於特定的情況？書中是否會介紹一些成功案例，讓我看到這項技術是如何為患者帶來希望的？我希望這本書能夠打開我認識心血管疾病治療新視角的大門。

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