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high yield about arrhythmia
Types of arrhythmia
Tachyarrhythmia |
Bradyarrhythmia |
Types and their feature
Sinus node Dysfunction |
AV block |
Sinus bradycardia: Normal |
1st degree: PR interval prolong, no need treat, Rheumatic fever |
Sinus arrest: No atrial deP and ventricular asystole |
2nd degree (Mobitz 1): prolong PR until no QRS (no ventriculatr beat), dissappear with exercise and atropine, normal |
Brady-tachy syndrome: Slow, fast rates |
2nd degree (Mobitz 2): regularly no QRS, pathological |
Chronotropic incompetence: HR drop quick after activity** |
3rd degree: complete AV dissoaciation, A and V contrx ont their own, haemodynamically unstable |
Types
Narrow-complex tachycardia |
Broad-complex tachycardia |
QRS <100ms
SUpraventricular origin |
QRS>100ms
ventricular origin or dt aberrnt conduction of supraventricular |
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Narrow complex tachycardia
NCT
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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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PR interval in P wave before QRS
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Broad complex tachycardia
Right bundle branch block
Ventricular tachycardia (VT)
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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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