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American Heart Association G
American Heart Association G

... out-of-hospital cardiac arrest (OHCA) • Immediate recognition of cardiac arrest and activation of the emergency response system • Early CPR that emphasizes chest compressions • Rapid defibrillation if indicated • Effective advanced life support • Integrated post cardiac arrest care ...
Dr - NSUCOMEMS Home
Dr - NSUCOMEMS Home

... RCA: Posterior wall AND INFERIOR WALL (as evidenced by changes in II, III, aVF on EKG) CIRC: Lateral wall of left ventricle Most MI’s will affect the LEFT ventricle, true right ventricular MI’s are very rare. EKG changes for true right sided pathology involve modified leads ...
Chapter 15
Chapter 15

... Blood flow through vessels in myocardium = coronary circulation Left & right coronary arteries ...
Relation between Heart Rate and Energy Expenditure in
Relation between Heart Rate and Energy Expenditure in

... Despite the wide variation i n birthweight, gestational age, method of feeding. and clinical characteristics. there was a remarkable consistency i n the heart rate-metabolic rate relationships. A further 10 studies were performed i n a similar group of infants to assess the predictive value of the p ...
Chest Pain - Heart Attack Care
Chest Pain - Heart Attack Care

... 4 . . .Acute Coronary Syndrome ...
Reperfused Myocardial Infarction in Mice: 3D QUERY SHEET Q1:
Reperfused Myocardial Infarction in Mice: 3D QUERY SHEET Q1:

... Figure 1 shows a flowchart of the data modeling and fusion process. Left ventricular geometry, mass and volume were determined from the black blood tagged cine images using guide point modeling (10) (Fig. 1, i–ii). Briefly, a “cardiac” coordinate system was constructed in relation to the canonical a ...
Further Insight into Mechanisms of Ventricular
Further Insight into Mechanisms of Ventricular

... potentials were recorded during VT. The demonstration of concealed entrainment at the sites at which diastolic potentials were recorded would have provided additional evidence that these sites were in a region of slow conduction which was part of the VT reentrant circuit. An example of this is shown ...
Isotretinoin (13-cis-retinoic acid)-associated premature ventricular
Isotretinoin (13-cis-retinoic acid)-associated premature ventricular

... are characterized by an early beat with a wide and abnormal QRS complex, without a preceding P wave. T wave axis is usually opposite to the QRS. PVCs are relatively common findings in children, especially in adolescents. PVCs are reported in about 1- ...
Acute Coronary Syndrome
Acute Coronary Syndrome

Atrial Septal Defect
Atrial Septal Defect

... What exactly is an AMPLATZER Septal Occluder and an AMPLATZER Multi-Fenestrated Septal Occluder - “Cribriform”? The AMPLATZER Septal Occluder is a device specifically designed to close an ASD (Figure 5). The AMPLATZER MultiFenestrated Septal Occluder - “Cribriform” is specifically designed to close ...
Left ventricle - Dr. Par Mohammadian
Left ventricle - Dr. Par Mohammadian

... – Contractile cardiac muscle cells ...
acute decompensated heart failure
acute decompensated heart failure

... BALLOON PUMP) ...
Diagnostic Value of Cardiovascular Magnetic
Diagnostic Value of Cardiovascular Magnetic

... PVC-induced cardiomyopathy (18-21). In this study, more than 12,500 PVCs in 24hHolter was associated higher rate of heart abnormalities in the CMR. Therefore, patients with > 12,500 PVCs in 24h-Holter might be referred to CMR scan. Improving ventricular systolic function and reducing ventricular vol ...
THE SURPRISING HISTORY OF THE “HRmax=220-age”
THE SURPRISING HISTORY OF THE “HRmax=220-age”

... noninvasive procedures used to estimate stroke volume and cardiac output. Consequently, measurement of heart rate is routinely used to assess the response of the heart to exercise, or the recovery from exercise, as well as to prescribe exercise intensities (3). Given that the increase in heart rate ...
ACUTE DECOMPENSATED HEART FAILURE
ACUTE DECOMPENSATED HEART FAILURE

... BALLOON PUMP) ...
HRmax=220-age - American Society of Exercise Physiologists
HRmax=220-age - American Society of Exercise Physiologists

... noninvasive procedures used to estimate stroke volume and cardiac output. Consequently, measurement of heart rate is routinely used to assess the response of the heart to exercise, or the recovery from exercise, as well as to prescribe exercise intensities (3). Given that the increase in heart rate ...
REMAC LVAD Advisory
REMAC LVAD Advisory

File
File

...  Atrioventricular bundle (Bundle of His)  Bundle branches (right and left)  Purkinje fibers Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
Medical Control
Medical Control

... – One shock followed immediately by CPR (beginning with chest compressions). – Manufacturer’s recommendations for energy settings. – Do not attempt to palpate a pulse or check the rhythm after shock delivery. – After about two minutes of CPR if an organized rhythm is apparent during rhythm check, th ...
Ansar Report Parameters
Ansar Report Parameters

... FRF: the Fundamental Respiratory Frequency. The FRF is equal to one over the breathing rate in breaths per minute in a normal, healthy individual. The FRF is then translated to the heart rate spectrum so that the respiratory frequency spectrum can be centered and the parasympathetic activity comput ...
Current strategy for treatment of patient with Wolff–Parkinson–White
Current strategy for treatment of patient with Wolff–Parkinson–White

... person with asymptomatic Wolff–Parkinson –White (WPW) pattern has a higher likelihood of being risk-stratified or receiving ablation therapy compared with an older subject. Two-thirds of centres report that they have observed a decline in the number of patients ablated for an accessory pathway durin ...
Diagnosis and Treatment of Sick Sinus Syndrome -
Diagnosis and Treatment of Sick Sinus Syndrome -

Transposition of the Great Arteries
Transposition of the Great Arteries

... circulation, so many patients later developed CHF due to RV dysfunction and/or tricuspid regurgitation http://www.med.umich.edu/mott/chc/patient_con_tran1.html ...
Delayed depolarization of the cog-wheel valve
Delayed depolarization of the cog-wheel valve

... Propagation of the ECG across the RV and into the muscle surrounding the cog-wheel valve was recorded by positioning one electrode in the cog-wheel muscle (located approximately 1 cm from the base of the RV) and a second electrode at different locations on the RV (11–15 different locations in each o ...
Non-cardiac Surgery in the Adult Congenital Heart Patient
Non-cardiac Surgery in the Adult Congenital Heart Patient

... hours  prior  to  a  scheduled  tubal  ligation.    Her  surgeon  has  asked  that  she  be   evaluated  to  determine  if  she  is  a  candidate  for  laparoscopic  tubal  ligation  or  if  the   procedure  will  have  to  be  op ...
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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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