Cardiac conduction - PowerPoint PPT Presentation

Cardiac arrhythmias are a common cause of death in patients with heart conditions. These abnormalities in heart rhythm can be due to issues with impulse generation or conduction. Antiarrhythmic medications play a crucial role in managing these conditions by affecting the action potentials of cardiac

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Explore the comprehensive agenda covering topics like the general structure of the circulatory system, blood circulation in the human body, risk factors for cardiovascular diseases, and physiotherapeutic approaches in cardiac rehabilitation. Gain insights into the anatomy of the heart, arteries, vei

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This compilation covers examples and governing equations of heat conduction, including boundary conditions and scenarios involving one-dimensional conduction in various structures. It explores scenarios like steady-state conditions in a plane wall, heat conduction along a pipeline, and temperature d

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Learn the importance of bystander CPR in saving lives during sudden cardiac arrest incidents. Understand the steps to perform hands-only CPR, identify compression rates, and the role of the Good Samaritan law. Discover key facts about sudden cardiac arrest and how bystander intervention can signific

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Acoramidis, a next-generation TTR stabilizer, shows promising results in improving cardiac function and promoting regression in Transthyretin Amyloid Cardiomyopathy. The ATTRibute-CM Cardiac Magnetic Resonance Substudy evaluated changes in cardiac structure, function, and amyloid burden after treatm

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Cardiac implantable devices like pacemakers, cardiac loop records, and implantable cardioverter defibrillators require extensive cardiac implant monitoring services to help safeguard the patients' heart health at all times. Let\u2019s get started.\n

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Cooking methods like conduction and convection are fundamental in culinary arts. Conduction involves direct heat transfer through matter, while convection utilizes the movement of fluids for heat transfer. Gravity and buoyancy play crucial roles in natural convection processes, resulting in efficien

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Cardiac output, stroke volume, end-diastolic and end-systolic volumes play vital roles in cardiovascular function. Factors affecting cardiac output include physiological conditions and pathological states like hyperthyroidism and myocardial infarction. Venous return, controlled by mechanisms like Fr

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Study investigates the association between renal and cerebral near-infrared spectroscopy (NIRS) values and low cardiac output syndrome in single ventricle patients post Stage I palliation. Data from infants who underwent surgery between 2010-2019 is analyzed to determine correlations with adverse ou

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Dive into the intricate details of cardiac electrical activity in this lecture led by Physiology Team 436. Explore topics like the cardiac conductive system, action potentials, refractory periods, excitation-contraction coupling, and the effects of autonomic stimulation on heart electrophysiology. D

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Explore examples of transient conduction phenomena in thermal energy storage units, cylinders, and spheres. Learn how to calculate time durations, temperature changes, and energy removal rates during these heating and cooling processes. The examples cover scenarios involving aluminum slabs, oil bath

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Explore the intricate workings of the cardiac cycle, from the mechanical and electrical changes to the phases in both atria and ventricles. Learn about the time duration of a cardiac cycle, the impact of heart rate on systole and diastole, and various pressure, volume, and sound changes occurring du

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The electrocardiogram (ECG) is a result of intricate physiological and technological processes involving transmembrane ionic currents, cardiac activation sequences, and electrode connections. The cardiac conduction system consists of various components like the sinoatrial node, atrioventricular node

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Twofold increase in sudden cardiac arrests on the ACCU prompted the implementation of the Cardiac Watcher Program in Children's Medical Center, Dallas. The program aims to decrease cardiac arrests by improving patient identification and creating a shared mental model among team members. Developed pa

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Dr. J. Badshah, a University Professor cum Chief Scientist at Sanjay Gandhi Institute of Dairy Technology, explains the conduction through hollow spheres with varying thermal conductivity. The concept of logarithmic mean area for hollow spheres and solving numericals related to conduction through a

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Normal pregnancy induces significant physiologic changes in the cardiovascular system, which can impact women with pre-existing cardiac diseases. Understanding the New York Heart Association classification scheme is crucial for assessing symptomatology during pregnancy. Rheumatic Heart Disease, part

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Learn how to perform hands-only CPR effectively in case of cardiac arrest. Understand the importance of quick action, proper compression rate, and the Good Samaritan law. Discover facts about sudden cardiac arrest and why bystander CPR can significantly increase survival rates. Follow a guide on wha

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Near-infrared spectroscopy (NIRS) has been studied in infants after Stage I palliation surgery to assess its association with low cardiac output and adverse outcomes. This retrospective study investigated postoperative cerebral and renal NIRS values in infants with single ventricle physiology. Resul

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Explore the role of Steroids, Cardiac Glycosides, and Triterpenoids in pharmacognosy and phytochemistry, focusing on their general introduction, composition, chemistry, biosources, therapeutic uses, and commercial applications. Learn about the structure and attachment of sugar parts in Cardiac Glyco

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Cardiac failure is a condition where the heart is unable to meet tissue metabolic needs despite normal or increased venous return. Causes include decreased contractility, coronary blood flow, damaged valves, and more. Normal resting cardiac output is 5 Lt/mts, with adaptive mechanisms like the Frank

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This guide provides detailed instructions and images on how to measure various parameters in cardiac MR imaging, including left ventricle measurements in diastole and systole, LA measurements, aorta measurements, and EF calculations using CVI42 software. It also includes steps for phase calculations

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Cardiovascular disease remains a significant contributor to maternal mortality in the UK, with maternal deaths from cardiac issues outnumbering those from other direct causes, except thrombosis. The prevalence of cardiovascular risk factors in pregnant women, combined with a lack of consideration fo

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The Canadian Cardiac Transplant Network Status Review 2021 provides a detailed overview of cardiac transplant programs across various provinces in Canada from 2016 to 2021. The report includes data on the number of cases, hospitals involved, and referral centers, showcasing the trends in cardiac tra

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Local Anesthetics (LAs) are drugs that abolish sensations like pain in specific body areas by blocking nerve conduction of sensory impulses. This process involves reducing the influx of sodium ions, preventing membrane depolarization, and inhibiting action potential conduction. LAs are weak bases wi

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This presentation emphasizes the importance of dispatcher-assisted bystander CPR in identifying pulseless, non-breathing patients to improve cardiac arrest survival rates. Highlighting the need for community involvement, it showcases the impact of prompt response and effective CPR on increasing surv

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Sudden cardiac arrest is a critical condition where the heart suddenly stops beating, leading to a lack of blood flow to vital organs. Learn about the definition, statistics, importance of early CPR, and treatments for sudden cardiac arrest to increase survival rates. Bystander participation in perf

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Learn about interventions to improve survival and neurological recovery post-cardiac arrest. Discover key aspects of successful post-arrest care and eligibility for interventions reducing brain injury. Includes priorities, clinical cases, prehospital care, stabilization, and identification of treata

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Thrombolytics are suggested for cardiac arrest from presumed PE despite lack of RCTs focusing on this subset. Studies on undifferentiated cardiac arrest did not show a survival benefit. Trials using tissue plasminogen activator in PEA arrest showed no significant difference in outcomes, while a stud

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This project aims to increase cardiac arrest survival rates by training dispatchers to assist bystanders in providing CPR to patients who are pulseless and not breathing. By bringing dispatcher-assisted CPR to Milwaukee County, the goal is to enhance bystander CPR rates and ultimately improve cardia

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This review focuses on the quality of care provided to adult patients aged 16 years and older who were admitted to the hospital after experiencing an out-of-hospital cardiac arrest. Key messages highlight the importance of strategies for rapid and high-quality resuscitation, documentation of advance

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Cardiopulmonary resuscitation (CPR) is crucial in cases of cardiac arrest, a leading cause of death globally. Immediate recognition of symptoms such as unresponsiveness and abnormal breathing, early activation of emergency services, and prompt initiation of CPR can significantly improve survival rat

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Initial clinical evaluation of a child with possible cardiac abnormalities includes history taking and physical examination. History should cover symptoms related to pulmonary and systemic venous congestion, cyanosis, cyanotic spells, palpitations, chest pain, and more. The general physical examinat

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Explore the complex processes underlying cardiac action potential, from ionic equilibrium to resting membrane potential and excitability in cardiac cells. Learn about the critical thresholds, equilibrium potentials, and gradients that regulate the electrical activity of the heart. Discover the intri

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Loss of consciousness, including syncope and sudden cardiac death, is a significant concern in pediatric patients. The epidemiology shows that approximately 25% of children experience at least one episode of loss of consciousness before the age of 19, with girls visiting pediatricians more than boys

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Heat energy is a form of energy measured in joules that causes particles to move faster, expand, and change states. Learn about the difference between heat and temperature, heating and cooling processes, and the methods of energy transfer such as conduction. Discover how materials conduct heat diffe

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Heat transfer is a fundamental process that occurs through conduction, convection, and radiation. Conduction involves the transfer of heat between particles through direct contact, while convection moves heat within fluids and gases through currents. Radiation is heat transfer through electromagneti

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This laboratory focuses on the conduction system of the heart and electrocardiography, covering topics such as the anatomy of the internal conduction pathway, normal electrocardiogram interpretation, and the role of autorhythmic cells and pacemakers. The content also includes information on electrod

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Exploring the fundamental electrical properties in nerve conduction studies, including charge, voltage, current, and impedance. Learn about normal values, anatomy, and anomalies in nerve function. This self-study curriculum is designed for technologists interested in electromyography and nerve condu

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Explore the fundamental concepts of heat conduction and transfer, including Fourier's law, steady-state conduction, thermal resistance, multi-layered systems, cylindrical objects, and overall heat transfer coefficients. Discover how to analyze boundary conditions, calculate critical insulation thick

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Information on managing emergencies in cardiac intensive care including topics like hemorrhage post-cardiac surgery, tamponade post-cardiac surgery, and control of bleeding. Details on initial steps for bleeding control, teamwork in managing hemorrhage, and diagnosing tamponade post-cardiac surgery

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