stuff to do with arrhythmias Flashcards
Atrial fibrillation, atrial flutter, heart block, sinus tachycardia, supra ventricular tachycardia, ventricular tachycardia, and ventricular ectopic beat all in one deck.
complications of atrial fibrillation
stroke
symptoms of atrial fibrillation
chest pain
palpitations
ECG diagnosis of atrial fibrillation
no P wave
treatment of atrial fibrillation
beta blocker for rate control
digoxin
cardioversion for rhythm control
pathology of atrial fibrillation
AVN receives overload of depolarisation
pathology of atrial flutter
re-entrant circuit within the right atrium
symptoms of atrial flutter
hard/fast heart beat
difficulty breathing
chest discomfort
syncope
complications of atrial flutter
blood clots
treatment of atrial flutter
rhythm control - amiodarone, cardioversion
rate control - beta blocker
ECG diagnosis of atrial flutter
regular rate of 300bpm
ventricular rate determined by AV conduction ratio - usually 2:1
sawtooth in II, III, aVF
narrow QRS complex
ECG diagnosis of left BBB
WiLLiaM
W pattern in v1
M pattern in v2
ECG diagnosis of right BBB
MaRRoW
M pattern in v1
W pattern in v6
pathology of heart block
disrupted passage of electrical impulse through AVN
symptoms of heart block
dizzy
light-headed
palpitations
complications of heart block
missed beats
syncope
complications of 3rd degree heart block
bradycardia –> haemodynamic compromise
treatment of heart block
artificial pacemaker
ECG signs of 1st degree heart block
PR interval is prolonged and unchanging
no missed beat
ECG signs of 2nd degree heat block - Mobitz I
PR interval becomes longer and longer until a QRS is missed, then the pattern resets (Wenckebach phenomenon)
ECG signs of 2nd degree heart block - Mobitz II
QRS regularly missed (e.g. 2:1)
may progress to complete heart block