orthodromic AV-reentrant tachycardia
... Junctional Tachycardia • JTs (also known as nonparoxysmal or sustained junctional tachycardia) show sustained ventricular rates but rarely exceed 130 beats/min. • JTs are commonly associated with structural heart disease, metabolic disturbances, or drug toxicity. • Treatment is aimed at addressing ...
... Junctional Tachycardia • JTs (also known as nonparoxysmal or sustained junctional tachycardia) show sustained ventricular rates but rarely exceed 130 beats/min. • JTs are commonly associated with structural heart disease, metabolic disturbances, or drug toxicity. • Treatment is aimed at addressing ...
File
... WHAT IS ELECTRICAL RECIPROCITY? Some EKG lead “mirror each other” electrically, so that ST elevations in one group will show up as ST depressions in the other. Not ischemia – “mirroring”. There are only two main areas of the heart that do this: the inferior and lateral ones; the septal and posterior ...
... WHAT IS ELECTRICAL RECIPROCITY? Some EKG lead “mirror each other” electrically, so that ST elevations in one group will show up as ST depressions in the other. Not ischemia – “mirroring”. There are only two main areas of the heart that do this: the inferior and lateral ones; the septal and posterior ...
Questions
... head: chronic stomatitis, pharyngitis, jugular vein distension reaching up to one half of the neck, breathing with medium inspiratory crackles over both lung bases. HR 140/min, gallop, soft abdomen, liver 1 cm bellow right costal margin, no peripheral edemas, BP 120/80mmHg ECG: at admission, sin rhy ...
... head: chronic stomatitis, pharyngitis, jugular vein distension reaching up to one half of the neck, breathing with medium inspiratory crackles over both lung bases. HR 140/min, gallop, soft abdomen, liver 1 cm bellow right costal margin, no peripheral edemas, BP 120/80mmHg ECG: at admission, sin rhy ...
Physiology Lec.(2) Dr.Rafah Sami
... appliances used for this purpose are an improvement of this early device. A record of the electrical activity of heart muscle is known as electrocardiogram. It gives information about the rate, rhythm and conductivity of myocardium. Clinically the ECG has become an essential investigation for the di ...
... appliances used for this purpose are an improvement of this early device. A record of the electrical activity of heart muscle is known as electrocardiogram. It gives information about the rate, rhythm and conductivity of myocardium. Clinically the ECG has become an essential investigation for the di ...
Bio202studentlecturenotesHeartlll
... sends APs to preganglionic neurons in upper thoracic spinal cord. Their preganglionic axons travel to and synapse in the superior part of the ____________________ trunk. From here, postganglionic axons then travel to the heart. Effects the 1. ______________node 2. _________________ node AND 3. the _ ...
... sends APs to preganglionic neurons in upper thoracic spinal cord. Their preganglionic axons travel to and synapse in the superior part of the ____________________ trunk. From here, postganglionic axons then travel to the heart. Effects the 1. ______________node 2. _________________ node AND 3. the _ ...
Lab 12 EKG with LabQuest
... An electrocardiogram (ECG or EKG) is a graphical recording of the electrical events occurring within the heart. In a healthy heart there is a natural pacemaker in the right atrium (the sinoatrial node) which initiates an electrical sequence. This impulse then passes down natural conduction pathways ...
... An electrocardiogram (ECG or EKG) is a graphical recording of the electrical events occurring within the heart. In a healthy heart there is a natural pacemaker in the right atrium (the sinoatrial node) which initiates an electrical sequence. This impulse then passes down natural conduction pathways ...
Supraventricular Tachycardia (SVT)
... chambers of the heart (atria). This signal is then communicated to the pumping chambers (ventricles) by a single connection called the AV node which functions like electrical wiring. This ensures that the heart beat is orderly ie one contraction follows the other in the correct sequence. SVT is usua ...
... chambers of the heart (atria). This signal is then communicated to the pumping chambers (ventricles) by a single connection called the AV node which functions like electrical wiring. This ensures that the heart beat is orderly ie one contraction follows the other in the correct sequence. SVT is usua ...
botanicals and arrhythmias - American Herbalists Guild
... Patrick M. Fratellone, MD RH (AHG), FIM, FACC ...
... Patrick M. Fratellone, MD RH (AHG), FIM, FACC ...
Heart
... The electrocardiogram (ECG) measures changes in skin electrical voltage/potential caused by electrical currents generated by the heart ...
... The electrocardiogram (ECG) measures changes in skin electrical voltage/potential caused by electrical currents generated by the heart ...
CV-1
... (ECG), recorded as the difference between currents at the left and right wrists, and an action potential typical of ventricular myocardial cells. ...
... (ECG), recorded as the difference between currents at the left and right wrists, and an action potential typical of ventricular myocardial cells. ...
ASD-Atrial Septal Defect
... their hearts feel like they skip or miss a beat. They may feel forceful heartbeats. Some may not feel these extra beats. Some people find that stress, caffeine, alcohol, or certain medicines increase how often the extra heartbeats occur. ...
... their hearts feel like they skip or miss a beat. They may feel forceful heartbeats. Some may not feel these extra beats. Some people find that stress, caffeine, alcohol, or certain medicines increase how often the extra heartbeats occur. ...
this PDF file
... failure in the early stages of the disease, it is often complicated by ventricular tachycardia which may be life threatening. While fractionation of the QRS and the pattern in V2 are not specific and may be normal,(5) they raise the suspicion of underlying scarring in the ventricles. Structural hear ...
... failure in the early stages of the disease, it is often complicated by ventricular tachycardia which may be life threatening. While fractionation of the QRS and the pattern in V2 are not specific and may be normal,(5) they raise the suspicion of underlying scarring in the ventricles. Structural hear ...
Sudden Death in Young Athletes (3.20.11)
... blood vessels with sudden death the result. However, most of the fatal episodes reported in young amateur athletes are caused by a fatal heart rhythm. It’s general knowledge that the heart is a mechanical organ that pumps blood to the organs, but we also know that the heart has a complex electrical ...
... blood vessels with sudden death the result. However, most of the fatal episodes reported in young amateur athletes are caused by a fatal heart rhythm. It’s general knowledge that the heart is a mechanical organ that pumps blood to the organs, but we also know that the heart has a complex electrical ...
Mechanisms of Cardiac Arrhythmias
... o Under certain conditions a normal action potential can abnormally trigger additional depolarizations that can lead to extra heart beats or rapid arrhythmias; this process may occur when the first action potential leads to oscillations of the membrane voltage known as afterdepolarizations Altered I ...
... o Under certain conditions a normal action potential can abnormally trigger additional depolarizations that can lead to extra heart beats or rapid arrhythmias; this process may occur when the first action potential leads to oscillations of the membrane voltage known as afterdepolarizations Altered I ...
ecg interpretation part 1: understanding mean electrical axis
... Although a clock face provides a useful analogy, it is necessary to understand the hexaxial reference system to interpret an ECG. The 12-lead ECG is the combination of the 6 chest leads, which represent the myocardium’s horizontal plane from the right sternum to the left midaxillary line, the standa ...
... Although a clock face provides a useful analogy, it is necessary to understand the hexaxial reference system to interpret an ECG. The 12-lead ECG is the combination of the 6 chest leads, which represent the myocardium’s horizontal plane from the right sternum to the left midaxillary line, the standa ...
Cardiac Coned
... • Formation of electrical impluses • Heart fibers depolarizing • Nerves that fire ...
... • Formation of electrical impluses • Heart fibers depolarizing • Nerves that fire ...
The Cardiovascular System: The Heart
... – Is stimulated by nerves and is self-excitable (automaticity) – Contracts as a unit – Has a long (250 ms) absolute refractory period ...
... – Is stimulated by nerves and is self-excitable (automaticity) – Contracts as a unit – Has a long (250 ms) absolute refractory period ...
experiment 4 - heart rate and exercise
... 3. Recovery time has been shown to correlate with degree of physical fitness. How does the subject’s recovery rate compare to that of your classmates? Is this what you expected? 4. Congestive heart failure is a condition in which the strength of contraction with each beat may be significantly reduce ...
... 3. Recovery time has been shown to correlate with degree of physical fitness. How does the subject’s recovery rate compare to that of your classmates? Is this what you expected? 4. Congestive heart failure is a condition in which the strength of contraction with each beat may be significantly reduce ...
CHAPTER ONE THE HEART ANATOMY AND PHYSIOLOGY 2
... and consist of single positive electrode and a reference point (with zero electrical potential) that lies in the center of the heart’s electrical field. Leads V1–V6 are unipolar leads and consist of a single positive electrode with a negative reference point found at the electrical center of the hea ...
... and consist of single positive electrode and a reference point (with zero electrical potential) that lies in the center of the heart’s electrical field. Leads V1–V6 are unipolar leads and consist of a single positive electrode with a negative reference point found at the electrical center of the hea ...
AF_in_young_patient_-_a_serial_case_lessons
... Arif Ridha1, Levina Tri Ratana2, Hizkia2, Michael Jonatan2, Arinta Setyasari3, Prihati Pujowaskito4 ...
... Arif Ridha1, Levina Tri Ratana2, Hizkia2, Michael Jonatan2, Arinta Setyasari3, Prihati Pujowaskito4 ...
Ch 11 Heart Physiology
... Uses the specialized cardiac muscle cells (nodal tissue) 75 beats per minute ...
... Uses the specialized cardiac muscle cells (nodal tissue) 75 beats per minute ...
EKG
... The rate tells you how fast the heart is depolarizing HR = 300 / # of boxes between R to R interval HR = 1500 / # of small squares between an R to R interval. This only works on regular rhythms! HR = # of QRS complex in a 6 second strip x10 OR…find an R on a black line and count each black line 300, ...
... The rate tells you how fast the heart is depolarizing HR = 300 / # of boxes between R to R interval HR = 1500 / # of small squares between an R to R interval. This only works on regular rhythms! HR = # of QRS complex in a 6 second strip x10 OR…find an R on a black line and count each black line 300, ...
Chapter 20 - FacultyWeb
... 1. A single cycle of the cardiac cycle 2. An action potential 3. A single cycle of atrial depolarization and repolarization 4. A single cycle of ventricular depolarization and repolarization ...
... 1. A single cycle of the cardiac cycle 2. An action potential 3. A single cycle of atrial depolarization and repolarization 4. A single cycle of ventricular depolarization and repolarization ...
VT IN ABSENCE OF STRUCTURAL HEART DISEASE BY DR
... Appearance of type 1 ST segment elevation (coved type) in > 1 rt precordial lead (V1 - V3) in the presence or absence of a sodium channel blocker, plus at least one of the following: Documented ventricular fibrillation. Polymorphic ventricular tachycardia (VT). Family h/o sudden cardiac death at ...
... Appearance of type 1 ST segment elevation (coved type) in > 1 rt precordial lead (V1 - V3) in the presence or absence of a sodium channel blocker, plus at least one of the following: Documented ventricular fibrillation. Polymorphic ventricular tachycardia (VT). Family h/o sudden cardiac death at ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.