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Predictive Implication of Initial Electrocardiogram and Creatine
Predictive Implication of Initial Electrocardiogram and Creatine

... Aim: Our aim was to determine the clinical, electrocardiographic (ECG) and biochemical predictors of left ventricular dysfunction in patients with acute ST elevation myocardial infarction (STEMI). Methods: Patients with STEMI admitted in Loghman Hakim hospital were studied. The ECG variables were: E ...
Pharmacological Stress Echocardiography
Pharmacological Stress Echocardiography

PHARMACEUTICAL CARE ISSUES IN CARDIOLOGY
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... A typical resting cardiac output is 4–6 litres per minute. This can rise to as much as 40 litres per minute in highly trained endurance ...
Complete Cardio Answer Key - KidsHealth in the Classroom
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Sudden Death in Adult Congenital Heart Disease
Sudden Death in Adult Congenital Heart Disease

... 6 Epicardial; 14 transvenous Therapy-rate 2.8 per patient-years of F-U 53% appropriate; 47% inappropriate 1.5 appropriate per patient-year of FU 1.3 inappropriate per patient-year of FU PACE 2004; 27:924-932 ...
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Outline20 Cardio2 - Napa Valley College
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EKG Paper ECG tracings are recorded on grid paper. The horizontal
EKG Paper ECG tracings are recorded on grid paper. The horizontal

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WATERS Mini Lesson
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PEAK 485 Cardiac Anatomy / Physiology Review I. Anatomy A
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... 4. AP travels slowly through the AV node, which allows time for complete ventricular filling. The AV nodal delay is about 0.1 second which is enough time for atria to contact and empty their contents into ventricles. 5. AP goes from AV node through the bundle of His and through Purkinje fibers throu ...
Anatomic description of the heart of an ostrich (Struthio camelus)
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... The ostrich (Struthio camelus) is a bird with considerable commercial value involving the exploitation of its meat, leather, feathers and eggs, including the shells. Most of the meat is located on the thighs and back. The heart of birds is similar to that of mammals, except for some characteristics, ...
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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.
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