Def
They r parxosomal and recurrent and has rate 140 to 220 beat per min with 1:1 heart block.
Cause
reentry of atrial ectopic in a v node
reentry in acesory pathway
increased atrial automicity
anxiety
hyperthyroidism
tea
alchohol
idiopath
C/f
1 onset termination sudden
2 palpitation
3 off feeling in chest
4 dyspne
5 syncope
6 polyuria
investigation
1 ecg P in q r s complex
regular
st depression
Treat
1 vagal manure
delay conduction in a v node
2 drug
prolong a v refractory period
adenosin
3 cardio version
4 longterm
radio freq ablation
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