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high yield about arrhythmia
Types of arrhythmiaTachyarrhythmia | Bradyarrhythmia |
Types and their featureSinus 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 |
TypesNarrow-complex tachycardia | Broad-complex tachycardia | QRS <100ms
SUpraventricular origin | QRS>100ms
ventricular origin or dt aberrnt conduction of supraventricular |
| | Narrow complex tachycardia
NCTAtrial fibrillation Disorganized atrium contraction
ECG chaotic
P wave almost absent | Atrial flutter ECG sawtooth (2p, QRS, 3p, QRS)
P wave more than 1 | Multifocal atrial tachycardia P wave all over the place | AV Node re entry tachycardia Common, female, any age
Short RP interval or invisible P wave | Atrioventricular re-entry tachycardia Wolff Parkinson White Syndrome
Accessory pathway causing pre-excitation (Delta wave - before QRS) | Atrial tachycardia P wave ectopic origin
abnormal P wave axis | SInus tachycardia Normal P wave:
(-) AVR
(+) V2,3,AVF |
PR interval in P wave before QRS | | Broad complex tachycardia
Right bundle branch block
Ventricular tachycardia (VT)More likely VT Horizontal entry to ER
Old person
Chest pain & unconcious | Key features ECG Capture beat
Fusion beat
P waves in AV dissociation
Cpncordance |
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