9
Figure 4. Acute Treatment of Suspected Focal AT
Suspected focal AT
Hemodynamically
stable
YES
NO
Diagnosis of focal
AT established
YES NO
Cardioversion
a
(Class I)
IV adenosine
(Class IIa)
IV adenosine
(Class IIa)
If ineffective
IV amiodarone or
IV ibutilide
(Class IIb)
If ineffective
or not feasible
a
For rhythms that break or recur spontaneously, synchronized cardioversion is not
appropriate.
IV beta blocker,
IV diltiazem, or
IV verapamil
(Class I)
