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ECG-characteristics:<cite>Wung</cite> ...sion or even elevation in II, III, and AVF) the distal LAD is occluded. An ECG that does not show any ST depression sugggests an occlusion after the origi

[[Image:ami0006.jpg|700px|thumb|left|ECG MI 6]]

||'''ECG Criteria'''||'''Points'''

...dia''' (anterogarde conduction through the abnormal accessory bundle). The ECG shows wide QRS complexes followed by retrograde P-waves. The RP-time is >>

ECG changes typical for digoxin '''use''' (digoxin = Lanoxin) are: ECG changes typical for digoxin '''intoxication''' are:

...ardiologist for medical advice. Physical examination was unremarkable; his ECG is shown in figure 1. An echocardiogram was completely normal.

...od by the RCA. Because no leads "look" at the posterior wall in the normal ECG, no leads show ST-elevation in case of a posterior wall infarction. The ST

[[File:E000603.png|thumb|This ECG shows frequent premature beats from the right ventricular outflow tract]] If more than one VPB is present on the ECG, they can be:

2 ventricular premature beats are also shown in this ECG

The '''Long QT Syndrome (LQTS)''' is characterized on the ECG by prolongation of the [[Conduction#The_QT_interval|heart rate corrected QT File:acquired_longQT.jpg|A 12-lead ECG of a patient with acquired long QT syndrome. Notice the QT prolongation. Th

of a laterally displaced ictus cordis. His 12-lead ECG, shown in figure 1, was in sinus rhythm with some extrasystoles. The electr

...nus node cannot leave the node towards the atria. They are blocked. On the ECG this is expressed as a pause. SA exit block can be distinguished from [[sin

...ial infarction'''. That is why it is critical to recognize ischemia on the ECG in an early stage. ...efore, it may be difficult to estimate the duration of the ischemia on the ECG, which is crucial for adequate treatment.

...hy. BBR VT is extremely rare and this diagnosis is difficult to make on an ECG. However, during an [[EP study|electrophysiologic study]] this diagnosis ca

==ECG - Show== [[File:E000026.jpg|thumb|300px|right|ECG 1 - Tombstone Elevaties]]

of a laterally displaced ictus cordis. His 12-lead ECG, shown in figure 1, was in sinus rhythm with some extrasystoles. The electr the case as shown in figure 2, which is the same ECG

==How do I begin to read an ECG?== [[Image:nsr.png|thumb| A short ECG registration of normal heart rhythm (sinus rhythm)]]

...sociated with a [[Conduction#The_QT_time|long QT interval]] on the resting ECG. Torsade de Pointes is typically initiated by a short-long-short interval. File:Torsades_de_Pointes_TdP.png|12-lead ECG of Torsades de Pointes (TdP) in a 56-year-old white female with a potassium

...metimes atrial fibrillation results in a course atrial flutter wave on the ECG, but the baseline can also be flat. A flat baseline is more often seen in l

[[Category:ECG Course]]

==Normal neonatal ECG standards== |+Normal neonatal ECG standards<cite>schwarz1</cite>

...of relatively common forms of congenital heart disease and their potential ECG changes. Adapted from Khairy et al.<cite>khairy</cite> ...low amplitude QRS waves. RBBB and T wave inversion are not present on this ECG.]]

...an you should look for a [[Technical Problems|technical problem]] with the ECG, eg. movement or electrical interference.

On the ECG, an atrial infarct manifests by rhythm changes and/or change of the [[PTa s

==How do I begin to read an ECG?== | caption1 = A short ECG registration of normal heart rhythm (sinus rhythm)

.... A seperate chapter deals with [[Approach_to_the_Wide_Complex_Tachycardia|ECG algorithms to analyze wide complex tachycardias]]. ...complex from the right side. These are fusion complexes. Furthermore this ECG shows [[Technical Problems|baseline drift]], which is a technical artefact

[[Image:epsilon_wave.png|thumb|ECG with an epsilon wave in V1]] == ECG in ARVD==

...the arrow in the above animation to change the heart axis and see how the ECG changes.''''' [[File:E000604.png|thumb|Another example of an ECG with a right heart axis]]

:ECGpedia is an free online electrocardiography (ECG) course and textbook. All content is freely accessible. Anyone can contribute to th ...build a separate website, since an encyclopedia format does not allow the course- like setup of ECGpedia. It would also be difficult to incorporate informat

...ne for the steepest part of the T wave intersects with the baseline of the ECG. ]] On modern ECG machines, the QTc is given. However, the machines are not always capable of

.... The configuration of ectopic complexes, or extrasystoles, as seen on the ECG, reveals its origin, whether they are [[Atrial_Premature_Complexes|atrial]] [[Image:parasystole_12lead.jpg|thumb|An example of parasystole on a 12 lead ECG]]

==ECG 2011== ==2010 ECG==

Prior to 2009, ECG waveform definitions and measurement were based on inclusion of the R wave ...be performed to demonstrate that R wave downslope phenomena (Haïssaguerre ECG patterns<cite>24</cite><cite>25</cite>) can be used to predict individuals

..., which results in a fast sequence of p-waves in a sawtooth pattern on the ECG. For most AV-nodes this is way too fast to be able to conduct the signal to

...usly disturbed. The '''pacemaker rhythm''' can easily be recognized on the ECG. It shows '''pacemaker spikes''': vertical signals that represent the elect ...hm'''. As ventricular pacing occurs exclusively in the right ventricle the ECG shows a left bundle branch block pattern. An exception to this rule is left

|nextname=Step 7+1: Compare with previous ECG ...t passive; it is an active process during which energy is consumed. On the ECG, the repolarization phase starts at the junction, or ''j point'', and conti

| |[[Image:Normaal ecg.jpg|thumb|center|300px|An example of normal sinus rhythm.]] [[Category:ECG Course]]

[[File:E000602.png|thumb|A 12 lead ECG with a atrial extrasystole. The fourth QRS complex is preceded by an AES]]

...ed depolarization of the upper anterior part of the left ventricle. On the ECG this results in left axis deviation. The QRS width is <0.12 seconds in isol [[Category:ECG Textbook]]

|Description='''Case 100'''<br/>Try to interprete this ECG using the 7+2 step method Look at the consecutive ECGs in this patient. ...the ECG for the '''answers'''. Click on the ECG for '''enlargement of the ECG''' itself...

[[Category:ECG Textbook]]

*Is this my patient's ECG or is this an artifact? (applies especially in stressfull situations)

...and a [[Conduction|left or right bundle branch block]] can be seen on the ECG.

===ECG Recordings=== *[[McGill Case 179|A rate responsive pacemaker with respiratory sensor An ECG strip from the pacemaker clinic.]]

==ECG - Show==

The history of the ECG goes back more than one and a half centuries. ...nt for measuring (and recording) electricity - this is essentially what an ECG is; a sensitive galvanometer.