Heart Rate and Rhythm

Heart Rate and Rhythm

In this book experts from various fields provide an important context for understanding the complicated molecular and cellular mechanisms that underlie normal and pathophysiological cardiac rhythms.

Author: Onkar N. Tripathi

Publisher: Springer Science & Business Media

ISBN: 9783642175756

Category: Science

Page: 678

View: 723

Pathological heart rhythms are a major health issue. In this book experts from various fields provide an important context for understanding the complicated molecular and cellular mechanisms that underlie normal and pathophysiological cardiac rhythms. Individual chapters cover a full range of topics, including the ionic basis of pacemaking, the role of specific channels and transporters in sinoatrial node pacemaking, altered intracellular Ca2+ handling in response to disease, computer modeling of the action potentials of pacemaker and working cardiomyocytes, genetic and molecular basis of inherited arrhythmias and a review of established and novel antiarrhythmic agents. Due to the key importance of the specialized pacemaker cells and tissue (sinoatrial and atrioventricular nodes) in maintaining heart rate and rhythm, special emphasis is placed on the peculiar electrophysiology of these cells.
Categories: Science

Heart Rate and Rhythm

Heart Rate and Rhythm

In this book experts from various fields provide an important context for understanding the complicated molecular and cellular mechanisms that underlie normal and pathophysiological cardiac rhythms.

Author: Onkar N. Tripathi

Publisher: Springer

ISBN: 3642175740

Category: Science

Page: 678

View: 277

Pathological heart rhythms are a major health issue. In this book experts from various fields provide an important context for understanding the complicated molecular and cellular mechanisms that underlie normal and pathophysiological cardiac rhythms. Individual chapters cover a full range of topics, including the ionic basis of pacemaking, the role of specific channels and transporters in sinoatrial node pacemaking, altered intracellular Ca2+ handling in response to disease, computer modeling of the action potentials of pacemaker and working cardiomyocytes, genetic and molecular basis of inherited arrhythmias and a review of established and novel antiarrhythmic agents. Due to the key importance of the specialized pacemaker cells and tissue (sinoatrial and atrioventricular nodes) in maintaining heart rate and rhythm, special emphasis is placed on the peculiar electrophysiology of these cells.
Categories: Science

Cardiac Rate and Rhythm

Cardiac Rate and Rhythm

This is discussed in section I, concerning the fundamental properties of pacemaker cells with special refer ence to ionic membrane currents.

Author: L.N. Bouman

Publisher: Springer

ISBN: 9400975376

Category: Medical

Page: 696

View: 634

In the denervated state the mammalian heart, both in vivo and in vitro, is excited at very regular intervals, the coefficient of variance of the interbeat intervals not exceeding 2%. The pacemaker that is the source of this regular ex citation is localised normally within the sinus node (" sino-atrial node " node of Keith and Flack), a most intriguing small piece of tissue in the caval corner of the right atrium. A small portion of this node containing a group of probably only a few thousands of cells fires spontaneously, that means without any exter nal influence to trigger their activity. The so called pacemaker cells do this by letting their membrane potential fall to the level where an action potential will start which subsequently activates surrounding cells to fire an action po tential. The first question which is tackled in this book is which processes underly this spontaneous diastolic depolarization. This is discussed in section I, concerning the fundamental properties of pacemaker cells with special refer ence to ionic membrane currents. Although views still quite differ about the exact nature of the membrane processes that cause the automatic pacemaker dis charge there is agreement that diastolic depolarization is brought about by the interaction of a number of ionic current systems, including both inward and out ward going currents.
Categories: Medical

Arrhythmias 101

Arrhythmias 101

Beginning with an introduction to normal and abnormal heartbeats, the following chapters examine different types of arrhythmia, the causes of fast and slow heartbeats, their diagnosis and management. ‘Clinical pearls’ are included ...

Author: Glenn N Levine

Publisher: JP Medical Ltd

ISBN: 9789350904992

Category: Medical

Page: 104

View: 202

An arrhythmia is a problem with the rate or rhythm of the heartbeat. Arrythmias occur when the electrical impulses to the heart that coordinate heartbeats do not work properly, resulting in heartbeats being too fast, too slow or with an irregular rhythm. Arrhythmias 101 is an introductory guide to heart rhythm disturbances, helping trainees understand, recognise, diagnose and manage arrhythmias. Beginning with an introduction to normal and abnormal heartbeats, the following chapters examine different types of arrhythmia, the causes of fast and slow heartbeats, their diagnosis and management. ‘Clinical pearls’ are included throughout the book. Authored by Houston-based Professor Glenn Levine, this highly useful, easy to read text includes numerous full colour images and illustrations to enhance learning and understanding. Key points Introductory guide to arrhythmias for trainees Easy to read format, presenting causes, diagnosis and management of different types of arrhythmia Useful ‘clinical pearls’ included throughout Authored by Houston-based cardiology specialist
Categories: Medical

Training with the Heart Rate Monitor

Training with the Heart Rate Monitor

How should an endurance, therapeutic or cardiac rehabilitation workout best be structured? The book gives competent answers to all the questions you may have concerning training with a heart rate monitor.

Author: Kuno Hottenrott

Publisher: Meyer & Meyer Sport

ISBN: 9781841265261

Category: Health & Fitness

Page: 150

View: 431

Since it has been possible to wear a heart rate monitor on your wrist, nearly everyone has been able to monitor and control their training load and intensity, for these small gadgets provide accurate biofeedback. Monitors have made rapid advances in recent years. As well as accurately measuring heart rate, they can now be used to run tests to determine individual training zones, fitness or stress levels. There are also many programs that are able to structure training more effectively. But how can one find and use such a gadget for one's personal goals? How should an endurance, therapeutic or cardiac rehabilitation workout best be structured? The book gives competent answers to all the questions you may have concerning training with a heart rate monitor. It aims to make you more autonomous so that you can plan your own training.
Categories: Health & Fitness

Disorders of Cardiac Rate Rhythm and Conduction

Disorders of Cardiac Rate  Rhythm  and Conduction

Do you know which disorders of rate , rhythm and conduction can often be diagnosed from the patient ' s history , and which ones can only be diagnosed with the help of an ECG ? Do you know how to set about interpreting an ECG ?

Author: Hamish Watson

Publisher:

ISBN: UOM:39015009527907

Category: Arrhythmia

Page: 218

View: 774

This book is written as a practical guide for the non-specialist and begins with the necessary background information on electrophysiology and the way in which normal and abnormal conditions are displayed on the ECG. The book also looks at the symptoms associated with disorder of rate, rhythm and conduction, and patients who have no symptoms. There is a major section on recognition and treatment, dealing in turn with variations of normal sinus rhythm, disorders of rate and rhythm, and disorders of conduction. A selection of drugs and physical methods are discussed, with detailed information on their use and possible side effects and finally there is a section which looks at management problems for general practitioners, hospital doctors and nurses. The book would be of use to medical students, junior hospital doctors and general practitioners who acquire electrocardiograph machines and coronary care units, where nurses often lack educational tools.
Categories: Arrhythmia

Clinical Pathology for Athletic Trainers

Clinical Pathology for Athletic Trainers

A slow heart rate is called bradycardia and a high heart rate is termed tachycardia . ... If the rate and rhythm feel normal , the pulse can be counted for 15 seconds and the result multiplied by 4.24 Other methods include counting for ...

Author: Daniel P. O'Connor

Publisher: SLACK Incorporated

ISBN: 1556427700

Category: Medical

Page: 438

View: 239

Written specifically for athletic trainers, the updated second edition of Clinical Pathology for Athletic Trainers: Recognizing Systemic Disease emphasizes practical knowledge; development of clinical skills, including evaluation and treatment; and development of clinical decision-making abilities. Inside Clinical Pathology for Athletic Trainers, Second Edition, you will find an expanded discussion of the pathophysiology associated with general medical conditions, as well as case studies which facilitate the student's ability to formulate a differential diagnosis and make clinical decisions. Dr. Daniel P. O'Connor and Dr. A. Louise Fincher have incorporated all of the didactic and psychomotor competencies listed within the General Medical Conditions and Pathology of Injuries and Illness domains from the Fourth Edition of the NATA Educational Competencies into this unique text. Competencies that are addressed throughout the text are conveniently listed at the beginning of each chapter in which they are referenced. Individual lab activities are included within some chapters to aid in the development of the psychomotor skills related to evaluating general medical illnesses. Instructors will enjoy new ancillary materials such as test bank questions and PowerPoint slides. What's New in the Second Edition: • New chapters on pharmacology; dermatology; and eyes, ears, nose, throat, and mouth • Integration of NATA Position Statements and Consensus Statements • Expanded discussion on the physical exam, including detailed instructions for evaluation procedures • New illustrations and a color atlas • New icons throughout the text to represent action to be taken by the athletic trainer during an evaluation, such as physician referral or activation of emergency action plan Lab Activities Inside the Second Edition: • Use of Pharmacology Resources • Assessment of Temperature • Assessment of Vital Signs (heart rate, blood pressure, and respiration rate) • Cardiac Auscultation • Pulmonary Auscultation and Percussion • Peak Flow Expiratory Rate • Abdominal Auscultation, Percussion, and Palpation • Urinalysis • Assessment of Blood Glucose Levels • Use of the Otoscope • Use of the Ophthalmoscope • Sensory Function • Motor Function • Reflex Function • Cranial Nerve Assessment With expanded discussions and case studies, new chapters and lab activities, and an emphasis on the development of clinical skills, the Second Edition of Clinical Pathology for Athletic Trainers: Recognizing Systemic Disease is a must-have for today's athletic training students and clinicians.
Categories: Medical

ECG Strip Ease

ECG Strip Ease

Heart rate This table can help make the sequencing method of determining heart rate more precise . After counting the number of boxes between the R waves ... Calculating heart rate ular rhythm ; dissimilar R - R intervals point to ...

Author: Lippincott Williams & Wilkins

Publisher: Lippincott Williams & Wilkins

ISBN: 1582555583

Category: Medical

Page: 376

View: 993

This workbook gives nurses and nursing students the opportunity to practice and perfect their rhythm interpretation skills on more than 600 realistic ECG strips. Introductory text offers a refresher on cardiac anatomy and physiology and ECG basics, and subsequent chapters provide in-depth coverage of each type of arrhythmia, pacemakers, and 12-lead ECGs, with scores of practice strips in each chapter.
Categories: Medical

ECG Interpretation

ECG Interpretation

Following a refresher on relevant cardiac anatomy, physiology, and electrophysiology, the book presents the 8-step method for reading any rhythm strip.

Author: Lippincott Williams & Wilkins

Publisher: Lippincott Williams & Wilkins

ISBN: 1582557012

Category: Medical

Page: 312

View: 765

Geared to LPNs/LVNs, this quick-reference pocket book provides an easy-to-understand guide to ECG interpretation and features over 200 clearly explained ECG rhythm strips. Following a refresher on relevant cardiac anatomy, physiology, and electrophysiology, the book presents the 8-step method for reading any rhythm strip. Subsequent chapters explain various cardiac rate and rhythm abnormalities, including sinus node arrhythmias, atrial arrhythmias, junctional arrhythmias, ventricular arrhythmias, and atrioventricular blocks. Arrhythmias are covered in a consistent format—causes, significance, ECG characteristics, signs and symptoms, and interventions. Coverage also includes ECG characteristics of disorders, drugs, pacemakers, and implantable cardioverter-defibrillators and a chapter on basic 12-lead electrocardiography.
Categories: Medical

General Nursing Medical and Surgical Textbook

General Nursing   Medical and Surgical Textbook

19.3.4.2 Evaluation of the heart rhythm After a systematic evaluation of the ECG tracing the nurse must combine and ... the QRS complex to the end of the T wave and usually lasts from 0,32–0,40 seconds for a heart rate of about 65–95 .

Author:

Publisher: Pearson South Africa

ISBN: 0798619155

Category: Nurses

Page: 608

View: 505

Categories: Nurses

Pathophysiology of Heart Disease

Pathophysiology of Heart Disease

Heart Rhythm The normal cardiac rhythm, initiated by depolarization of the sinus node, is known as sinus rhythm and is present if (1) ... If the heart rate in sinus rhythm is between 60 and 100 bpm, then normal sinus rhythm is present.

Author: Leonard S. Lilly

Publisher: Lippincott Williams & Wilkins

ISBN: 9781605477237

Category: Medical

Page: 461

View: 775

Revised and updated, this volume is a comprehensive, clear, concise, and easy-to-understand introduction to cardiovascular diseases. This bestselling text is specifically designed to meet the needs of medical students during their initial encounters with patients with heart disease.
Categories: Medical

Problem Solving in Radiology Cardiovascular Imaging E Book

Problem Solving in Radiology  Cardiovascular Imaging E Book

This data acquisition is most reliable when the heart rate is slow and diastasis is used for acquisition. Second, this prospective technique may fail if the rhythm is irregular or if the heart rate changes substantially during the scan ...

Author: Suhny Abbara

Publisher: Elsevier Health Sciences

ISBN: 9781455746255

Category: Medical

Page: 872

View: 945

Optimize diagnostic accuracy with Cardiovascular Imaging, a title in the popular Problem Solving in Radiology series. Drs. Suhny Abbara and Sanjeeva Kalva use a problem-based approach to help you make optimal use of the latest cardiovascular imaging techniques and achieve confident diagnoses. Consult this title on your favorite e-reader with intuitive search tools and adjustable font sizes. Elsevier eBooks provide instant portable access to your entire library, no matter what device you're using or where you're located. Make the most effective use of today's imaging techniques, including PET and SPECT. Perform effective interventions using the newest grafts, stents, and coils. See conditions as they appear in practice with more than 2,350 images detailing anatomy, normal anatomic variants, and pathology. Make optimal clinical choices and avoid complications with expert protocols and tricks of the trade. Avoid common problems that can lead to an incorrect diagnosis. Tables and boxes with tips, pitfalls, and other teaching points show you what to look for, while problem-solving advice helps you make sound clinical decisions. Quickly find the information you need thanks to a well-organized, user-friendly format with consistent headings, detailed illustrations, and at-a-glance tables.
Categories: Medical

ABC of Clinical Electrocardiography

ABC of Clinical Electrocardiography

Thus when the rhythm is regular and the paper speed is running at the standard rate of 25 mm/s, the heart rate can be calculated by counting the number of large squares between two consecutive R waves, and dividing this number into 300.

Author: Francis Morris

Publisher: John Wiley & Sons

ISBN: 9781444312492

Category: Medical

Page: 112

View: 438

Electrocardiography is an essential tool in diagnosing cardiacdisorders. This second edition of the ABC of ClinicalElectrocardiography allows readers to become familiar with the widerange of patterns seen in the electrocardiogram in clinicalpractice and covers the fundamentals of ECG interpretation andanalysis. Fully revised and updated, this edition includes a self-assessmentsection to aid revision and check comprehension, clear anatomicaldiagrams to illustrate key points and a larger format to show12-lead ECGs clearly and without truncation. Edited and written by leading experts, the ABC of ClinicalElectrocardiography is a valuable text for anyone managing patientswith heart disorders, both in general practice and in hospitals.Junior doctors and nurses, especially those working in cardiologyand emergency departments, as well as medical students, will findthis a vaulable introduction to the understanding of this keyclinical tool.
Categories: Medical

Veterinary Technician s Manual for Small Animal Emergency and Critical Care

Veterinary Technician s Manual for Small Animal Emergency and Critical Care

Sense Observation Information Capillary refill time Cardiovascular status: peripheral perfusion Palpebral/corneal reflex Level of consciousness/responsiveness Skin temperature Body temperature Cardiac auscultation • Rate, rhythm, ...

Author: Christopher Norkus

Publisher: John Wiley & Sons

ISBN: 9781118243572

Category: Medical

Page: 567

View: 229

Veterinary Technician's Manual for Small Animal Emergency and Critical Care provides a comprehensive reference on emergency and critical care medicine for veterinary technicians of all skill levels. Beginning with information on initial patient assessment and triage, the first section covers shock and initial stabilization, venous access, monitoring, and cardiopulmonary cerebral resuscitation. A section on specific conditions such as cardiovascular and respiratory emergencies is organized by system, with a final section highlighting select topics like anesthesia and analgesia, transfusion medicine, and critical care pharmacology. Case studies, review questions, and images are provided on a companion website at www.wiley.com/go/norkus. Coverage focuses on dogs and cats, with special considerations for handling exotic and avian emergencies covered in a dedicated chapter. This in-depth material in an easy-to-navigate format is an essential resource for veterinary technicians and assistants, emergency and critical care veterinary technician specialists, and veterinary technician students.
Categories: Medical

Kozier Erb s Fundamentals of Nursing Australian Edition

Kozier   Erb s Fundamentals of Nursing Australian Edition

I The nurse who assesses the apical rate also assesses the apical pulse rhythm and volume (i.e. whether the heartbeat is strong or weak). If the pulse is irregular, note whether the irregular beats come at random or at predictable times ...

Author: Audry Berman

Publisher: Pearson Higher Education AU

ISBN: 9781486011452

Category: Medical

Page: 1745

View: 834

Kozier and Erb’s Fundamentals of Nursing prepares students for practice in a range of diverse clinical settings and help them understand what it means to be a competent professional nurse in the twenty-first century. This third Australian edition has once again undergone a rigorous review and writing process. Contemporary changes in the regulation of nursing are reflected in the chapters and the third edition continues to focus on the three core philosophies: Person-centred care, critical thinking and clinical reasoning and cultural safety. Students will develop the knowledge, critical thinking and clinical reasoning skills to deliver care for their patients in ways that signify respect, acceptance, empathy, connectedness, cultural sensitivity and genuine concern.
Categories: Medical

Health Assessment and Physical Examination

Health Assessment and Physical Examination

A pressure wave is created as the blood is carried to the peripheral vasculature. This palpable pressure is the pulse. Pulse assessment can determine heart rate, rhythm, and the estimated volume of blood being pumped by the heart.

Author: Mary Ellen Zator Estes

Publisher: Cengage Learning

ISBN: 9781285692272

Category: Medical

Page: 1152

View: 686

Gain confidence and competence with HEALTH ASSESSMENT & PHYSICAL EXAMINATION, fifth edition! Promoting healthy outcomes in patients begins with thorough and knowledgeable assessment, a key nursing responsibility. As you develop and refine your examination skills, you will learn to view the patient from a holistic perspective of not only physical well-being, but social, spiritual, emotional, and psychological health as well. With HEALTH ASSESSMENT & PHYSICAL EXAMINATION fifth edition you will gain the confidence and technical skills required of a competent and well-trained professional. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.
Categories: Medical

Clinical Arrhythmology and Electrophysiology

Clinical Arrhythmology and Electrophysiology

Autonomic Blockade (Intrinsic Heart Rate) Autonomic blockade is the most commonly used pharmacological ... Atropine occasionally results in the appearance of a junctional escape rhythm on cessation of pacing before sinus escape beats in ...

Author: Ziad F. Issa

Publisher: Elsevier Health Sciences

ISBN: 9781416059981

Category: Medical

Page: 502

View: 435

With its unique, singular focus on the clinical aspect of cardiac arrhythmias, Clinical Arrhythmology and Electrophysiology: A Companion to Braunwald's Heart Disease makes it easy to apply today's most up-to-date guidelines for diagnosis and treatment. An expert author team provides clear, clinically focused guidance on all types of cardiac arrhythmias, including practical techniques for managing complex patients. Find the information you need quickly with a consistent organization in all chapters, written to a template that shows every arrhythmia type in a similar manner. Access the fully searchable contents online at www.expertconsult.com, in addition to downloadable images and dynamic video clips. Fully understand the rationale for treatment of specific arrhythmias with practical techniques that are grounded in the most recent basic science. Stay up to date with new chapters on molecular mechanisms of cardiac electrical activity, cardiac ion channels, ventricular tachycardia in nonischemic dilated cardiomyopathy, epicardial ventricular tachycardia, ventricular arrhythmias in hypertrophic cardiomyopathy, ventricular arrhythmias in inherited channelopathies, ventricular arrhythmias in congenital heart disease, atrial arrhythmias in congenital heart disease, and complications of catheter ablation of cardiac arrhythmias. View videos of 27 key techniques online, including optical mapping of reentrant ventricular arrhythmias, 3-dimensional mapping of arrhythmias using different mapping and navigation modalities, and fluoroscopy images illustrating techniques for electrophysiologic catheter positioning, atrial septal puncture, and pericardial access. Gain a new understanding of hot topics such as mechanisms of arrhythmias, electrophysiologic testing, mapping and navigation modalities, ablation energy sources, sinus node dysfunction, conduction disturbances, atrial tachyarrhythmias, preexcitation syndromes and all types of ventricular and supraventricular tachycardias. Tackle the clinical management of cardiac arrhythmias with confidence with the most up-to-date guidance from the experts you trust. Your purchase entitles you to access the web site until the next edition is published, or until the current edition is no longer offered for sale by Elsevier, whichever occurs first. If the next edition is published less than one year after your purchase, you will be entitled to online access for one year from your date of purchase. Elsevier reserves the right to offer a suitable replacement product (such as a downloadable or CD-ROM-based electronic version) should access to the web site be discontinued.
Categories: Medical