11
Table 7. Acute Treatment of MAT
COR
LOE Recommendation
IIa C-LD IV metoprolol or verapamil can be useful for acute treatment in
patients with MAT.
Figure 6. Acute Treatment of AVNRT
AVNRT
YES
NO
IV beta blockers, IV
diltiazem, or IV verapamil
(Class IIa)
IV amiodarone
(Class IIb)
Vagal maneuvers and/or
IV adenosine
(Class I)
If ineffective
Synchronized
cardioversion
a
(Class I)
If ineffective
or not feasible
If ineffective or not feasible
Hemodynamically
stable
a
For rhythms that break or recur spontaneously,
synchronized cardioversion is not appropriate.
Oral beta blockers,
diltiazem, or
verapamil may
be reasonable for
acute treatment in
hemodynamically
stable patients with
AVNRT
(Class IIb)
Table 8. Ongoing Management of MAT
COR
LOE Recommendations
IIa B-NR Oral verapamil (LOE: B-NR) or diltiazem (LOE: C-LD) is
reasonable for ongoing management in patients with recurrent
symptomatic MAT.
C-LD
IIa C-LD Metoprolol is reasonable for ongoing management in patients
with recurrent symptomatic MAT.
AVNRT
