Cardiovascular System Chapter 36 “White” Cardiovascular system
... - The electrical impulse starts down the AV Bundle of His which divides into Right and Left Bundle Branches. - The electrical impulses continue from R and L Bundle Branches to the Purkinje Fibers. The Purkinje Fibers transmits impulses to the myocardial cells causing the ventricles to contract! See ...
... - The electrical impulse starts down the AV Bundle of His which divides into Right and Left Bundle Branches. - The electrical impulses continue from R and L Bundle Branches to the Purkinje Fibers. The Purkinje Fibers transmits impulses to the myocardial cells causing the ventricles to contract! See ...
Real-time Interactive Volumetric Animation of the Heart’s Electrical Cycle from Automatically
... animation. The initial ECG data was acquired by recording a 12 lead ECG of a staff member. No pathologies were present. Our initial model used points to represent each cell within the volume [8]. However, at the drawing stage it was very obvious that this method was too slow for the system, therefor ...
... animation. The initial ECG data was acquired by recording a 12 lead ECG of a staff member. No pathologies were present. Our initial model used points to represent each cell within the volume [8]. However, at the drawing stage it was very obvious that this method was too slow for the system, therefor ...
Indications - Cecchini Cuore
... cardiac conduction • Sense atrial activity • Inhibit pacing if the patient’s heart rate remains above prevent target • At lower rates, pacer stimulates atria ...
... cardiac conduction • Sense atrial activity • Inhibit pacing if the patient’s heart rate remains above prevent target • At lower rates, pacer stimulates atria ...
Hospital Newsletter Article/Blog Post
... Many patients with AF do not experience symptoms, so the condition frequently goes undetected. When left untreated, patients with AF are five times more likely to have a stroke 2 and three times more likely to develop heart failure.3 Until now, the ability to detect and monitor for new onset, asympt ...
... Many patients with AF do not experience symptoms, so the condition frequently goes undetected. When left untreated, patients with AF are five times more likely to have a stroke 2 and three times more likely to develop heart failure.3 Until now, the ability to detect and monitor for new onset, asympt ...
How to read an electrocardiogram (ECG).
... Mobitz type 2 is distinguished from Mobitz type 1 AV block by the fact that there is no prolongation of the PR interval in type 2. In other words there is complete non-conduction of the affected P waves, and those P waves that are conducted to the ventricles do so with a normal PR interval. The most ...
... Mobitz type 2 is distinguished from Mobitz type 1 AV block by the fact that there is no prolongation of the PR interval in type 2. In other words there is complete non-conduction of the affected P waves, and those P waves that are conducted to the ventricles do so with a normal PR interval. The most ...
Heart Examination
... 2)Two fingers above the lung and gaster’s margin, do a percussion medially to find the left margin of the heart ...
... 2)Two fingers above the lung and gaster’s margin, do a percussion medially to find the left margin of the heart ...
Cardiovascular System 1 - University of Manitoba
... Dr. J.E. Bruni B.Sc., M.Sc., Ph.D., University of Manitoba ...
... Dr. J.E. Bruni B.Sc., M.Sc., Ph.D., University of Manitoba ...
ecg-arryhthmias
... This interval can range from 0.2 to 0.4 seconds depending upon heart rate. At high heart rates, ventricular action potentials shorten in duration, which decreases the Q-T interval. Because prolonged Q-T intervals can be diagnostic for susceptibility to certain types of tachyarrhythmias, it is import ...
... This interval can range from 0.2 to 0.4 seconds depending upon heart rate. At high heart rates, ventricular action potentials shorten in duration, which decreases the Q-T interval. Because prolonged Q-T intervals can be diagnostic for susceptibility to certain types of tachyarrhythmias, it is import ...
Bradycardia - UCSF | Department of Medicine
... • SA node: supplied by RCA 65%, CFX 25%, both 10% • AV node: RCA 80%, CFX 10%, both 10% • His-Purkinje system (the real difference between 2nd degree type I and II) Diagnosis: ECG, Telemetry / event monitoring, Tilt table testing, EP Management: (see handbook and ACLS) • Transcutaneous and transveno ...
... • SA node: supplied by RCA 65%, CFX 25%, both 10% • AV node: RCA 80%, CFX 10%, both 10% • His-Purkinje system (the real difference between 2nd degree type I and II) Diagnosis: ECG, Telemetry / event monitoring, Tilt table testing, EP Management: (see handbook and ACLS) • Transcutaneous and transveno ...
Facts About Sudden Cardiac Arrest
... watching for dangerous patterns and delivering electrical impulses when needed that may range from a tiny pulse like a cardiac pacemaker’s to a full, life-saving shock that can return the heart to normal rhythm. Dangerous patterns may indicate ventricular fibrillation, ventricular tachycardia or les ...
... watching for dangerous patterns and delivering electrical impulses when needed that may range from a tiny pulse like a cardiac pacemaker’s to a full, life-saving shock that can return the heart to normal rhythm. Dangerous patterns may indicate ventricular fibrillation, ventricular tachycardia or les ...
Housewide Telemetry Monitoring Test
... A. Verify proper unit placement by reviewing physician telemetry order. B. Obtain telemetry transmitter, lead wires, battery, and pager (if applicable) from Central Monitoring Station. C. Verify patient’s identification according to policy. D. Follow the electrode placement protocol and place the te ...
... A. Verify proper unit placement by reviewing physician telemetry order. B. Obtain telemetry transmitter, lead wires, battery, and pager (if applicable) from Central Monitoring Station. C. Verify patient’s identification according to policy. D. Follow the electrode placement protocol and place the te ...
palpitations
... drugs,myocardial infarction ischaemia,infitration,hypothyroidism, hypothermia, jaundice and raised intracranial pressure ...
... drugs,myocardial infarction ischaemia,infitration,hypothyroidism, hypothermia, jaundice and raised intracranial pressure ...
循環生理 黃基礎
... 6. Capillary walls are thin. Oxygen delivery to tissure rapidly. 7. Ultrafiltration occur in the kidney to separate the fitrate from plasma. 8. Lymph system to recover the fluid lost ...
... 6. Capillary walls are thin. Oxygen delivery to tissure rapidly. 7. Ultrafiltration occur in the kidney to separate the fitrate from plasma. 8. Lymph system to recover the fluid lost ...
PEDIATRIC CARDIAC RHYTHM DISTURBANCES
... acidosis resulting from respiratory insufficiency and shock ...
... acidosis resulting from respiratory insufficiency and shock ...
Preparatory Activity: The Electrical System of the Heart
... Action potentials propagate throughout the atrial myocardium from cell to cell via intercalated discs and through specialized internodal pathways. (no label) The AV node (atrioventricular node) is located at the junction between the atria and ventricles. Action potentials are propagated through the ...
... Action potentials propagate throughout the atrial myocardium from cell to cell via intercalated discs and through specialized internodal pathways. (no label) The AV node (atrioventricular node) is located at the junction between the atria and ventricles. Action potentials are propagated through the ...
Prognostic value of QRS fragmentation in patients with
... Peters S, Trümmel M, Koehler B. QRS fragmentation in standard ECG as a diagnostic marker of arrhythmogenic right ventricular dysplasia-cardiomyopathy.Heart Rhythm. 2008 Oct;5(10):1417-21 ...
... Peters S, Trümmel M, Koehler B. QRS fragmentation in standard ECG as a diagnostic marker of arrhythmogenic right ventricular dysplasia-cardiomyopathy.Heart Rhythm. 2008 Oct;5(10):1417-21 ...
A Name
... 17) Cells found in which of the following locations can create a source for abnormal depolarizations, preventricular contraction (PVC) and fibrillation? a) AV nodal cells b) Ectopic foci c) SA nodal cells d) Epicardial cells 18) In a healthy person, a pulse pressure of 15 mmHg would be most likely t ...
... 17) Cells found in which of the following locations can create a source for abnormal depolarizations, preventricular contraction (PVC) and fibrillation? a) AV nodal cells b) Ectopic foci c) SA nodal cells d) Epicardial cells 18) In a healthy person, a pulse pressure of 15 mmHg would be most likely t ...
The Rate Dependent Bundle Branch Block
... reverted to normal sinus rhythm intermittently during peri-operative period. This intermittent ratedependent LBBB is a rare entity. Though hypertension is one significant co-morbid condition, the risk evalution of LBBB during anesthesia only on an ECG finding, is not justifiable. Rather patient shou ...
... reverted to normal sinus rhythm intermittently during peri-operative period. This intermittent ratedependent LBBB is a rare entity. Though hypertension is one significant co-morbid condition, the risk evalution of LBBB during anesthesia only on an ECG finding, is not justifiable. Rather patient shou ...
Ventricular Tachycardia in a Patient with Repaired Tetralogy of Fallot
... arrhythmia; Congenital heart disease Case Presentation and ECG Description A 22 year old male presented to the emergency department with malaise, nausea and vomiting after consuming alcohol. A 12 lead ECG (Figure 1a) revealed a regular, wide complex tachycardia (QRS duration 144 ms), ventricular rat ...
... arrhythmia; Congenital heart disease Case Presentation and ECG Description A 22 year old male presented to the emergency department with malaise, nausea and vomiting after consuming alcohol. A 12 lead ECG (Figure 1a) revealed a regular, wide complex tachycardia (QRS duration 144 ms), ventricular rat ...
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.