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Tachyarrhythmia
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Bradyarrhythmia
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Sinus node Dysfunction
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AV block
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Sinus bradycardia: Normal
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1st degree: PR interval prolong, no need treat, Rheumatic fever
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Sinus arrest: No atrial deP and ventricular asystole
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2nd degree (Mobitz 1): prolong PR until no QRS (no ventriculatr beat), dissappear with exercise and atropine, normal
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Brady-tachy syndrome: Slow, fast rates
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2nd degree (Mobitz 2): regularly no QRS, pathological
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Chronotropic incompetence: HR drop quick after activity**
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3rd degree: complete AV dissoaciation, A and V contrx ont their own, haemodynamically unstable
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Narrow-complex tachycardia
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Broad-complex tachycardia
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QRS <100ms
SUpraventricular origin |
QRS>100ms
ventricular origin or dt aberrnt conduction of supraventricular |
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Atrial fibrillation
Disorganized atrium contraction
ECG chaotic P wave almost absent |
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Atrial flutter
ECG sawtooth (2p, QRS, 3p, QRS)
P wave more than 1 |
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Multifocal atrial tachycardia
P wave all over the place
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AV Node re entry tachycardia
Common, female, any age
Short RP interval or invisible P wave |
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Atrioventricular re-entry tachycardia
Wolff Parkinson White Syndrome
Accessory pathway causing pre-excitation (Delta wave - before QRS) |
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Atrial tachycardia
P wave ectopic origin
abnormal P wave axis |
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SInus tachycardia
Normal P wave:
(-) AVR (+) V2,3,AVF |
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More likely VT
Horizontal entry to ER
Old person Chest pain & unconcious |
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Key features ECG
Capture beat
Fusion beat P waves in AV dissociation Cpncordance |
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