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Study of cardiac arrhythmias in acute myocardial infarction within 48
Study of cardiac arrhythmias in acute myocardial infarction within 48

... Background: The profile of coronary artery disease is different in India in terms of incidence and risk factors. Indians show higher incidence of hospitalization, morbidity and mortality than other ethnic groups. Majority of deaths in acute myocardial infarction are due to arrhythmias. These would s ...
بسم الله الرحمن الرحيم **Hypertrophic Cardiomyopathy(HCM)** The
بسم الله الرحمن الرحيم **Hypertrophic Cardiomyopathy(HCM)** The

... fluid surrounding the heart.  Distended neck veins; because this fluid will prevent venous drainage into the heart.  declining cardiac output; because there is small amount of blood in the heart and also there is a layer of fibrous tissue surrounding the heart preventing expansion and filling of t ...
HEART ATTACK (MYOCARDIAL INFARCTION)
HEART ATTACK (MYOCARDIAL INFARCTION)

... The chest pain associated with angina usually begins with physical exertion. Other triggers include emotional stress, extreme cold and heat, heavy meals, excessive alcohol consumption, and cigarette smoking. Angina chest pain is usually relieved within a few minutes by resting or by taking prescribe ...
to the ms word version of these notes.
to the ms word version of these notes.

... Smooth muscle cells are wrapped around the outsides of blood vessels, which conduct the blood from heart to all the tissues of the body. Constraction of this smooth muscle leads to reduction in the diameter of the vessel, making it harder for blood to flow through. This control permits blood vessels ...
Mitral/Tricuspid Regurgitation Due to Myxomatous Heart
Mitral/Tricuspid Regurgitation Due to Myxomatous Heart

... sound heard as a murmur, which is a coarse, hissing sound heard with every heartbeat (using a stethoscope) as opposed to the normal, thumping “lub-dub” sound of the healthy heart. This is often the only sign that this condition is present, and it generally remains the only sign for months or years b ...
Design of an anatomically accurate, multi-material
Design of an anatomically accurate, multi-material

... maximum speed of 100 beats per minute. Two pressure sensors (HSCMAND030PGAA5, Honeywell S&C) and two flowmeters (SeeedStudio POW110D3B G, Electronic Inventory Online) were acquired. These were connected in-line using off the shelf fittings (McMaster-Carr). A graphical user interface supplied by the ...
Design of an anatomically accurate, multi-material
Design of an anatomically accurate, multi-material

... maximum speed of 100 beats per minute. Two pressure sensors (HSCMAND030PGAA5, Honeywell S&C) and two flowmeters (SeeedStudio POW110D3B G, Electronic Inventory Online) were acquired. These were connected in-line using off the shelf fittings (McMaster-Carr). A graphical user interface supplied by the ...
ISOPROTERENOL TOXICITY INDUCED ECG ALTERATIONS IN WISTAR RATS: ROLE OF
ISOPROTERENOL TOXICITY INDUCED ECG ALTERATIONS IN WISTAR RATS: ROLE OF

... in the PR segment, QRS complex, RR interval and prolongation of QT interval. The PR segment of ECG represents AV conduction where as QRS shows total duration of ventricular depolarisation, their alteration reflects abnormality of heart function. The QT interval represents ventricular repolarisation ...
New diagnostic and technical aspects of fetal phonocardiography
New diagnostic and technical aspects of fetal phonocardiography

... growth of the heart, whereas the ascending slope of the first heart sound's spectrum is primarily caused by the predominance of the increasing contractile strength of the myocardium during that stage of pregnancy. On the basis of these findings, spectral analysis of the PCG can be considered a real ...
Normal Sinus Rhythm
Normal Sinus Rhythm

... • Deviation from NSR – No organized atrial depolarization, so no normal P waves (impulses are not originating from the sinus node). – Atrial activity is chaotic (resulting in an irregularly irregular rate). – Common, affects 2-4%, up to 5-10% if > 80 years old For more presentations www.medicalppt.b ...
A guide to your cardioversion - Salford Royal NHS Foundation Trust
A guide to your cardioversion - Salford Royal NHS Foundation Trust

... to thin the blood in the weeks prior to the cardioversion to reduce the risk of blood clots. Your blood needs to be adequately thinned for at least 3 weeks prior to cardioversion. You may attend the anticoagulation clinic regularly. Once your blood is thin enough we will list you for cardioversion. ...
Pharmacology MCQs: Antihypertensives, vasodilators, angina drugs
Pharmacology MCQs: Antihypertensives, vasodilators, angina drugs

... 33. in the developed world, the most common cause of myocarditis is a. SLE b. HIV c. Enteroviruses d. Chlamydiae e. Drug hypersensitivity 34. Plaque associated thrombosis is associated with all EXCEPT: a. Transmural MI b. Subendocardial MI c. Unstable angina d. Stable angina e. Sudden cardiac death ...
Pathology Dr. M.M. Lena September 26, 2003 DISEASE OF THE
Pathology Dr. M.M. Lena September 26, 2003 DISEASE OF THE

... Perfusion Scintigraphy Myocardial Resonance Imaging (Structural Characteristics) ECG changes:  Q wave  ST elevation Elevated Enzymes:  CK-MB (2-4 hours)  LDH (24 hours)  SGOT  Troponin L & T ...
Recurrent MI
Recurrent MI

... In a multi-center study of 515 women who had an acute myocardial infarction (MI), the most frequently reported symptoms were unusual fatigue, sleep disturbances, shortness of breath, indigestion and anxiety. ...
hemodynamics
hemodynamics

... • cold extremities indicate reduced perfusion  Urine Output • one of the best indicators of C.O. and arterial pressure • < 20 ml/ hr oliguria ( o lig uria) ...
Reveal LINQ ™ Insertable Cardiac Monitor (ICM) with
Reveal LINQ ™ Insertable Cardiac Monitor (ICM) with

... significantly reducing false episodes of bradycardia, pause and atrial fibrillation (AF). The enhancements of the Reveal LINQ ICM with TruRhythm Detection streamline data review so ...
heart dissection
heart dissection

... and vice versa. The aorta is clearly visible at the top, with an atrium on either side, while the ventricles are in the bottom left. ...
Successful Radiofrequency Catheter Ablation of Scar
Successful Radiofrequency Catheter Ablation of Scar

... Figure 1. Baseline electrocardiography during palpitations showed wide QRS tachycardia. The mechanism was determined to be atrial tachycardia with 1:1 ventricular conduction during a previous electrophysiologic study. ...
EP Curriculum 2011 - The Medical University of South Carolina
EP Curriculum 2011 - The Medical University of South Carolina

... therapeutic electrophysiologic procedures. To insure procedural competency, each clinical cardiac electrophysiology resident will have performed each category of electrophysiologic procedure in excess of minimum stated requirements. All procedures will be performed directly with one of the Clinical ...
Activity 5.3.2: Heart Matter - David I. is a bio-technician :D
Activity 5.3.2: Heart Matter - David I. is a bio-technician :D

... 1. As a group, choose a cardiac disease or disorder to research and begin collecting information concerning: ...
CLARITY/COMMIT Global Media Coverage
CLARITY/COMMIT Global Media Coverage

... “…new studies report significant progress in heart attack…adding the drug Plavix can help prevent a second heart attack…this approach is being called the first big advance in heart attack care in more than a decade…” ...
EFFECTS OF CARDIAC VAGOTOMY ON HEART RATE
EFFECTS OF CARDIAC VAGOTOMY ON HEART RATE

... The main results of this work can be summarized as follows: (i) cardiac vagotomized cats are able to learn a conditioned bradycardic response, (ii) they are able to discriminate between positive and inhibitory stimuli, (iii) the inhibitory effects of DS and CIS are not complete, because a decrement ...
Chapter 05: Junctional Rhythms Test Bank TRUE/FALSE 1. The AV
Chapter 05: Junctional Rhythms Test Bank TRUE/FALSE 1. The AV

... Atropine is a vagolytic drug that is used to increase the heart rate. Vago refers to the vagus nerves (right and left), which are the main nerves of the parasympathetic division of the autonomic nervous system. Lytic refers to “lyse,” which means “to interfere with.” Atropine works by blocking acety ...
Left ventricle
Left ventricle

... 3 Repolarization is due to Ca2+ channels inactivating and K+ channels opening. This allows K+ efflux, which brings the membrane potential back to its most negative voltage. ...
Part 7
Part 7

... and out-of-hospital treatment of symptomatic bradycardia.5–7 Transcutaneous pacing is usually indicated if the patient fails to respond to atropine, although second-line drug therapy with drugs such as dopamine or epinephrine may be successful (see below). Use transcutaneous pacing without delay for ...
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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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