8
Treatment
Table 4. Ongoing Management of IST
COR
LOE Recommendations
I C-LD Evaluation for and treatment of reversible causes are
recommended in patients with suspected IST.
IIa B-R Ivabradine is reasonable for ongoing management in patients with
symptomatic IST.
IIb C-LD Beta blockers may be considered for ongoing management in
patients with symptomatic IST.
IIb C-LD e combination of beta blockers and ivabradine may be
considered for ongoing management in patients with IST.
a
ere are no specific recommendations for acute treatment of IST.
Nonsinus Focal AT and MAT
Table 5. Acute Treatment of Suspected Focal AT
COR
LOE Recommendations
I C-LD IV beta blockers, diltiazem, or verapamil is useful for acute
treatment in hemodynamically stable patients with focal AT.
I C-LD Synchronized cardioversion is recommended for acute treatment
in patients with hemodynamically unstable focal AT.
IIa B-NR Adenosine can be useful in the acute setting to either restore sinus
rhythm or diagnose the tachycardia mechanism in patients with
suspected focal AT.
IIb C-LD IV amiodarone may be reasonable in the acute setting to
either restore sinus rhythm or slow the ventricular rate in
hemodynamically stable patients with focal AT.
IIb C-LD Ibutilide may be reasonable in the acute setting to restore sinus
rhythm in hemodynamically stable patients with focal AT.
IST
a