Table 2. Acute Treatment of SVT of Unknown Mechanism
Table 3. Ongoing Management of SVT of Unknown Mechanism
ISTa
Table 4. Ongoing Management of IST
Nonsinus Focal AT and MAT
Table 5. Acute Treatment of Suspected Focal AT
Table 6. Ongoing Management of Suspected Focal AT
Table 7. Acute Treatment of MAT
Table 8. Ongoing Management of MAT
Table 9. Acute Treatment of AVNRT
Table 10. Ongoing Management of AVNRT
Symptomatic Manifest or Concealed Accessory Pathways
Table 11. Acute Treatment of Orthodromic AVRT
Table 12. Ongoing Management of Orthodromic AVRT
Asymptomatic Pre-Excitation
Table 13. Asymptomatic Patients With Pre-Excitation
Table 14. Risk Stratification of Symptomatic Patients With Manifest Accessory Pathways
Atrial Flutter
Table 15. Acute Treatment of Atrial Flutter
Table 16. Ongoing Management of Atrial Flutter
Junctional Tachycardia
Table 17. Acute Treatment of Junctional Tachycardia
Table 18. Ongoing Management of Junctional Tachycardia
ACHD
Table 19. Acute Treatment of ACHD
Table 20. Ongoing Management of ACHD
Table 21. Acute Treatment of SVT in Pregnancy
SVT in Pregnancy
Table 22. Ongoing Management of SVT in Pregnancy
SVT in Older Populations
Table 23. Acute Treatment of SVT in Older Populations
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Management of Adult Patients With Supraventricular Tachycardia
Publication Date: September 23, 2015
Last Updated: September 2, 2022
Treatment
Table 2. Acute Treatment of SVT of Unknown Mechanism
Vagal maneuvers are recommended for acute treatment in patients with regular SVT. (I, B-R)
573
Adenosine is recommended for acute treatment in patients with regular SVT. (I, B-R)
573
Synchronized cardioversion is recommended for acute treatment in patients with hemodynamically unstable SVT when vagal maneuvers or adenosine are ineffective or not feasible. (I, B-R)
573
Synchronized cardioversion is recommended for acute treatment in patients with hemodynamically stable SVT when pharmacological therapy is ineffective or contraindicated. (I, B-R)
573
IVdiltiazem or verapamil can be effective for acute treatment in patients with hemodynamically stable SVT. (IIa, B-R)
573
IVbeta blockers are reasonable for acute treatment in patients with hemodynamically stable SVT. (IIa, C-LD)
573
Colors in tables and figures correspond to Class of Recommendation Table.
Table 3. Ongoing Management of SVT of Unknown Mechanism
Oral beta blockers, diltiazem, or verapamil is useful for ongoing management in patients with symptomatic SVT who do not have ventricular pre-excitation during sinus rhythm. (I, B-R)
573
EP study with the option of ablation is useful for the diagnosis and potential treatment of SVT. (I, B-NR)
573
Patients with SVT should be educated on how to perform vagal maneuvers for ongoing management of SVT. (I, C-LD)
573
Flecainide or propafenone is reasonable for ongoing management in patients without SHD or ischemic heart disease who have symptomatic SVT and are not candidates for, or prefer not to undergo, catheter ablation. (IIa, B-R)
573
Sotalol may be reasonable for ongoing management in patients with symptomatic SVT who are not candidates for, or prefer not to undergo, catheter ablation. (IIb, B-R)
573
Dofetilide may be reasonable for ongoing management in patients with symptomatic SVT who are not candidates for, or prefer not to undergo, catheter ablation and in whom beta blockers, diltiazem, flecainide, propafenone, or verapamil are ineffective or contraindicated. (IIb, B-R)
573
Oral amiodarone may be considered for ongoing management in patients with symptomatic SVT who are not candidates for, or prefer not to undergo, catheter ablation and in whom beta blockers, diltiazem, dofetilide, flecainide, propafenone, sotalol, or verapamil are ineffective or contraindicated. (IIb, C-LD)
573
Oral digoxin may be reasonable for ongoing management in patients with symptomatic SVT without pre-excitation who are not candidates for, or prefer not to undergo, catheter ablation. (IIb, C-LD)
573
ISTa
Table 4. Ongoing Management of IST
Evaluation for and treatment of reversible causes are recommended in patients with suspected IST. (I, C-LD)
573
Ivabradine is reasonable for ongoing management in patients with symptomatic IST. (IIa, B-R)
573
Beta blockers may be considered for ongoing management in patients with symptomatic IST. (IIb, C-LD)
573
The combination of beta blockers and ivabradine may be considered for ongoing management in patients with IST. (IIb, C-LD)
573
There are no specific recommendations for acute treatment of aIST.
Nonsinus Focal AT and MAT
Table 5. Acute Treatment of Suspected Focal AT
IVbeta blockers, diltiazem, or verapamil is useful for acute treatment in hemodynamically stable patients with focal AT. (I, C-LD)
573
Synchronized cardioversion is recommended for acute treatment in patients with hemodynamically unstable focal AT. (I, C-LD)
573
Adenosine can be useful in the acute setting to either restore sinus rhythm or diagnose the tachycardia mechanism in patients with suspected focal AT. (IIa, B-NR)
573
IVamiodarone 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)
573
Ibutilide may be reasonable in the acute setting to restore sinus rhythm in hemodynamically stable patients with focal AT. (IIb, C-LD)
573
Table 6. Ongoing Management of Suspected Focal AT
Catheter ablation is recommended in patients with symptomatic focal AT as an alternative to pharmacological therapy. (I, B-NR)
573
Oral beta blockers, diltiazem, or verapamil are reasonable for ongoing management in patients with symptomatic focal AT. (IIa, C-LD)
573
Flecainide or propafenone can be effective for ongoing management in patients without SHD or ischemic heart disease who have focal AT. (IIa, C-LD)
573
Oral sotalol or amiodarone may be reasonable for ongoing management in patients with focal AT. (IIb, C-LD)
573
Table 7. Acute Treatment of MAT
IV metoprolol or verapamil can be useful for acute treatment in patients with MAT. (IIa, C-LD)
573
Table 8. Ongoing Management of MAT
Oral verapamil(IIa, B-NR)
573
or diltiazem(IIa, C-LD)
573
is reasonable for ongoing management in patients with recurrent symptomatic MAT.
Metoprolol is reasonable for ongoing management in patients with recurrent symptomatic MAT. (IIa, C-LD)
573
Table 9. Acute Treatment of AVNRT
Vagal maneuvers are recommended for acute treatment in patients with AVNRT. (I, B-R)
573
Adenosine is recommended for acute treatment in patients with AVNRT. (I, B-R)
573
Synchronized cardioversion should be performed for acute treatment in hemodynamically unstable patients with AVNRT when adenosine and vagal maneuvers do not terminate the tachycardia or are not feasible. (I, B-NR)
573
Synchronized cardioversion is recommended for acute treatment in hemodynamically stable patients with AVNRT when pharmacological therapy does not terminate the tachycardia or is contraindicated. (I, B-NR)
573
IVbeta blockers, diltiazem, or verapamil are reasonable for acute treatment in hemodynamically stable patients with AVNRT. (IIa, B-R)
573
Oral beta blockers, diltiazem, or verapamil may be reasonable for acute treatment in hemodynamically stable patients with AVNRT. (IIb, C-LD)
573
IVamiodarone may be considered for acute treatment in hemodynamically stable patients with AVNRT when other therapies are ineffective or contraindicated. (IIb, C-LD)
573
Table 10. Ongoing Management of AVNRT
Oral verapamil or diltiazem is recommended for ongoing management in patients with AVNRT who are not candidates for, or prefer not to undergo, catheter ablation. (I, B-R)
573
Catheter ablation of the slow pathway is recommended in patients with AVNRT. (I, B-NR)
573
Oral beta blockers are recommended for ongoing management in patients with AVNRT who are not candidates for, or prefer not to undergo, catheter ablation. (I, B-R)
573
Flecainide or propafenone is reasonable for ongoing management in patients without SHD or ischemic heart disease who have AVNRT and are not candidates for, or prefer not to undergo, catheter ablation and in whom beta blockers, diltiazem, or verapamil are ineffective or contraindicated. (IIa, B-R)
573
Clinical follow-up without pharmacological therapy or ablation is reasonable for ongoing management in minimally symptomatic patients with AVNRT. (IIa, B-NR)
573
Oral sotalol or dofetilide may be reasonable for ongoing management in patients with AVNRT who are not candidates for, or prefer not to undergo, catheter ablation. (IIb, B-R)
573
Oral digoxin or amiodarone may be reasonable for ongoing treatment of AVNRT in patients who are not candidates for, or prefer not to undergo, catheter ablation. (IIb, B-R)
573
Self-administered (“pill-in-the-pocket”) acute doses of oral beta blockers, diltiazem, or verapamil may be reasonable for ongoing management in patients with infrequent, well-tolerated episodes of AVNRT. (IIb, C-LD)
573
Symptomatic Manifest or Concealed Accessory Pathways
Table 11. Acute Treatment of Orthodromic AVRT
Vagal maneuvers are recommended for acute treatment in patients with orthodromic AVRT. (I, B-R)
573
Adenosine is beneficial for acute treatment in patients with orthodromic AVRT. (I, B-R)
573
Synchronized cardioversion should be performed for acute treatment in hemodynamically unstable patients with AVRT if vagal maneuvers or adenosine are ineffective or not feasible. (I, B-NR)
573
Synchronized cardioversion is recommended for acute treatment in hemodynamically stable patients with AVRT when pharmacological therapy is ineffective or contraindicated. (I, B-NR)
573
Synchronized cardioversion should be performed for acute treatment in hemodynamically unstable patients with pre-excited AF. (I, B-NR)
573
Ibutilide or IVprocainamide is beneficial for acute treatment in patients with pre-excited AF who are hemodynamically stable. (I, C-LD)
573
IVdiltiazem, verapamil(IIa, B-R)
573
or beta blockers(IIa, C-LD)
573
can be effective for acute treatment in patients with orthodromic AVRT who do not have pre-excitation on their resting ECG during sinus rhythm.
IVbeta blockers, diltiazem, and verapamil might be considered for acute treatment in patients with orthodromic AVRT who have pre-excitation on their resting ECG and have not responded to other therapies. (IIb, B-R)
573
IVdigoxin, IVamiodarone , IV or oral beta blockers, diltiazem, and verapamil are potentially harmful for acute treatment in patients with pre-excited AF. (III - Harm, C-LD)
573
Table 12. Ongoing Management of Orthodromic AVRT
Catheter ablation of the accessory pathway is recommended in patients with AVRT and/or pre-excited AF. (I, B-NR)
573
Oral beta blockers, diltiazem, or verapamil are indicated for ongoing management of AVRT in patients without pre-excitation on their resting ECG. (I, C-LD)
573
Oral flecainide or propafenone is reasonable for ongoing management in patients without SHD or ischemic heart disease who have AVRT and/or pre-excited AF and are not candidates for, or prefer not to undergo, catheter ablation. (IIa, B-R)
573
Oral dofetilide or sotalol may be reasonable for ongoing management in patients with AVRT and/or pre-excited AF who are not candidates for, or prefer not to undergo, catheter ablation. (IIb, B-R)
573
Oral amiodarone may be considered for ongoing management in patients with AVRT and/or pre-excited AF who are not candidates for, or prefer not to undergo, catheter ablation and in whom beta blockers, diltiazem, flecainide, propafenone, and verapamil are ineffective or contraindicated. (IIb, C-LD)
573
Oral beta blockers, diltiazem, or verapamil may be reasonable for ongoing management of orthodromic AVRT in patients with pre-excitation on their resting ECG who are not candidates for, or prefer not to undergo, catheter ablation. (IIb, C-LD)
573
Oral digoxin may be reasonable for ongoing management of orthodromic AVRT in patients without pre-excitation on their resting ECG who are not candidates for, or prefer not to undergo, catheter ablation. (IIb, C-LD)
573
Oral digoxin is potentially harmful for ongoing management in patients with AVRT or AF and pre-excitation on their resting ECG. (III - Harm, C-LD)
573
Asymptomatic Pre-Excitation
Table 13. Asymptomatic Patients With Pre-Excitation
In asymptomatic patients with pre-excitation, the findings of abrupt loss of conduction over a manifest pathway during exercise testing in sinus rhythm (LOE: B-NR) SR or intermittent loss of pre-excitation during ECG or ambulatory monitoring (LOE: C-LD) SR are useful to identify patients at low risk of rapid conduction over the pathway. (I, B-NR)
SR
573
In asymptomatic patients with pre-excitation, the findings of
abrupt loss of conduction over a manifest pathway during exercise testing in sinus rhythm (I, B-NR)
SR
573
or intermittent loss of pre-excitation during ECG or ambulatory monitoring (I, C-LD)
SR
573
are useful to identify patients at low risk of rapid conduction over the pathway.
An EP study is reasonable in asymptomatic patients with pre-excitation to risk-stratify for arrhythmic events. (IIa, B-NR)
SR
573
Catheter ablation of the accessory pathway is reasonable in asymptomatic patients with pre-excitation if an EP study identifies a high risk of arrhythmic events, including rapidly conducting pre-excited AF. (IIa, B-NR)
SR
573
Catheter ablation of the accessory pathway is reasonable in asymptomatic patients if the presence of pre-excitation precludes specific employment (such as with pilots). (IIa, B-NR)
SR
573
Observation, without further evaluation or treatment, is reasonable in asymptomatic patients with pre-excitation. (IIa, B-NR)
SR
573
a These recommendations have been designated with the notation SR to emphasize the rigor of support from the Evidence Review Committee’s systematic review.
Table 14. Risk Stratification of Symptomatic Patients With Manifest Accessory Pathways
In symptomatic patients with pre-excitation,
the findings of abrupt loss of conduction over the pathway during exercise testing in sinus rhythm (I, B-NR)
573
or intermittent loss of pre-excitation during ECG or ambulatory monitoring (, )
573
are useful to identify patients at low risk of developing rapid conduction over the pathway.
An EP study is useful in symptomatic patients with pre-excitation to risk-stratify for life-threatening arrhythmic events. (I, B-NR)
573
Atrial Flutter
Table 15. Acute Treatment of Atrial Flutter
Oral dofetilide or IV ibutilide is useful for acute pharmacological cardioversion in patients with atrial flutter. (I, A)
573
IV or oral beta blockers, diltiazem, or verapamil are useful for acute rate control in patients with atrial flutter who are hemodynamically stable. (I, B-R)
573
Elective synchronized cardioversion is indicated in stable patients with well-tolerated atrial flutter when a rhythm control strategy is being pursued. (I, B-NR)
573
Synchronized cardioversion is recommended for acute treatment of patients with atrial flutter who are hemodynamically unstable and do not respond to pharmacological therapies. (I, B-NR)
573
Rapid atrial pacing is useful for acute conversion of atrial flutter in patients who have pacing wires in place as part of a permanent pacemaker or implantable cardioverter-defibrillator or for temporary atrial pacing after cardiac surgery. (I, C-LD)
573
Acute antithrombotic therapy is recommended in patients with atrial flutter to align with recommended antithrombotic therapy for patients with AF. (I, B-NR)
573
IVamiodarone can be useful for acute control of the ventricular rate (in the absence of pre-excitation) in patients with atrial flutter and systolic heart failure when beta blockers are contraindicated or ineffective. (IIa, B-R)
573
Table 16. Ongoing Management of Atrial Flutter
Catheter ablation of the CTI is useful in patients with atrial flutter that is either symptomatic or refractory to pharmacological rate control. (I, B-R)
573
Beta blockers, diltiazem, or verapamil are useful to control the ventricular rate in patients with hemodynamically tolerated atrial flutter. (I, C-LD)
573
Catheter ablation is useful in patients with recurrent symptomatic non–CTI-dependent flutter after failure of at least 1 antiarrhythmic agent. (I, C-LD)
573
Ongoing management with antithrombotic therapy is recommended in patients with atrial flutter to align with recommended antithrombotic therapy for patients with AF. (I, B-NR)
573
The following drugs can be useful to maintain sinus rhythm in patients with symptomatic, recurrent atrial flutter, with the drug choice depending on underlying heart disease and comorbidities:
Amiodarone
Dofetilide
Sotalol
(IIa, B-R)
573
Catheter ablation is reasonable in patients with CTI-dependent atrial flutter that occurs as the result of flecainide, propafenone, or amiodarone used for treatment of AF. (IIa, B-NR)
573
Catheter ablation of the CTI is reasonable in patients undergoing catheter ablation of AF who also have a history of documented clinical or induced CTI-dependent atrial flutter. (IIa, C-LD)
573
Catheter ablation is reasonable in patients with recurrent symptomatic non–CTI-dependent flutter as primary therapy, before therapeutic trials of antiarrhythmic drugs, after carefully weighing potential risks and benefits of treatment options. (IIa, C-LD)
573
Flecainide or propafenone may be considered to maintain sinus rhythm in patients without SHD or ischemic heart disease who have symptomatic recurrent atrial flutter. (IIb, B-R)
573
Catheter ablation may be reasonable for asymptomatic patients with recurrent atrial flutter. (IIb, C-LD)
573
Junctional Tachycardia
Table 17. Acute Treatment of Junctional Tachycardia
IVbeta blockers are reasonable for acute treatment in patients with symptomatic junctional tachycardia. (IIa, C-LD)
573
IVdiltiazem, procainamide, or verapamil is reasonable for acute treatment in patients with junctional tachycardia. (IIa, C-LD)
573
Table 18. Ongoing Management of Junctional Tachycardia
Oral beta blockers are reasonable for ongoing management in patients with junctional tachycardia. (IIa, C-LD)
573
Oral diltiazem or verapamil is reasonable for ongoing management in patients with junctional tachycardia. (IIa, C-LD)
573
Flecainide or propafenone may be reasonable for ongoing management in patients without SHD or ischemic heart disease who have junctional tachycardia. (IIb, C-LD)
573
Catheter ablation may be reasonable in patients with junctional tachycardia when medical therapy is not effective or contraindicated. (IIb, C-LD)
573
ACHD
Table 19. Acute Treatment of ACHD
Acute antithrombotic therapy is recommended in ACHD patients who have AT or atrial flutter to align with recommended antithrombotic therapy for patients with AF. (I, C-LD)
573
Synchronized cardioversion is recommended for acute treatment in ACHD patients and SVT who are hemodynamically unstable. (I, B-NR)
573
IVdiltiazem or esmolol (with extra caution using either agent, observing for the development of hypotension) is recommended for acute treatment in ACHD patients and SVT who are hemodynamically stable. (I, C-LD)
573
IV adenosine is recommended for acute treatment in ACHD patients and SVT. (I, B-NR)
573
IV ibutilide or procainamide can be effective for acute treatment in ACHD patients and atrial flutter who are hemodynamically stable. (IIa, B-NR)
573
Atrial pacing can be effective for acute treatment in ACHD patients and SVT who are hemodynamically stable and anticoagulated as per current guidelines for antithrombotic therapy in patients with AF. (IIa, B-NR)
573
Elective synchronized cardioversion can be useful for acute termination of AT or atrial flutter in ACHD patients when acute pharmacological therapy is ineffective or contraindicated. (IIa, B-NR)
573
Oral dofetilide or sotalol may be reasonable for acute treatment in ACHD patients and AT and/or atrial flutter who are hemodynamically stable. (IIb, B-NR)
573
Table 20. Ongoing Management of ACHD
Ongoing management with antithrombotic therapy is recommended in ACHD patients and AT or atrial flutter to align with recommended antithrombotic therapy for patients with AF. (I, C-LD)
573
Assessment of associated hemodynamic abnormalities for potential repair of structural defects is recommended in ACHD patients as part of therapy for SVT. (I, C-LD)
573
Preoperative catheter ablation or intraoperative surgical ablation of accessory pathways or AT is reasonable in patients with SVT who are undergoing surgical repair of Ebstein anomaly. (IIa, B-NR)
573
Oral beta blockers or sotalol therapy can be useful for prevention of recurrent AT or atrial flutter in ACHD patients. (IIa, B-NR)
573
Catheter ablation is reasonable for treatment of recurrent symptomatic SVT in ACHD patients. (IIa, B-NR)
573
Surgical ablation of AT or atrial flutter can be effective in ACHD patients undergoing planned surgical repair. (IIa, B-NR)
573
Atrial pacing may be reasonable to decrease recurrences of AT or atrial flutter in ACHD patients and sinus node dysfunction. (IIb, B-NR)
573
Oral dofetilide may be reasonable for prevention of recurrent AT or atrial flutter in ACHD patients. (IIb, B-NR)
573
Amiodarone may be reasonable for prevention of recurrent AT or atrial flutter in ACHD patients for whom other medications and catheter ablation are ineffective or contraindicated. (IIb, B-NR)
573
Flecainide should not be administered for treatment of SVT in ACHD patients and significant ventricular dysfunction. (III - Harm, B-NR)
573
Table 21. Acute Treatment of SVT in Pregnancy
Vagal maneuvers are recommended for acute treatment in pregnant patients with SVT. (I, C-LD)
573
Adenosine is recommended for acute treatment in pregnant patients with SVT. (I, C-LD)
573
Synchronized cardioversion is recommended for acute treatment in pregnant patients with hemodynamically unstable SVT when pharmacological therapy is ineffective or contraindicated. (I, C-LD)
573
IV metoprolol or propranolol is reasonable for acute treatment in pregnant patients with SVT adenosine is ineffective or contraindicated. (IIa, C-LD)
573
IVverapamil may be reasonable for acute treatment in pregnant patients with SVT when adenosine and beta blockers are ineffective or contraindicated. (IIb, C-LD)
573
IVprocainamide may be reasonable for acute treatment in pregnant patients with SVT. (IIb, C-LD)
573
IVamiodarone may be considered for acute treatment in pregnant patients with potentially life-threatening SVT when other therapies are ineffective or contraindicated. (IIb, C-LD)
573
SVT in Pregnancy
Table 22. Ongoing Management of SVT in Pregnancy
The following drugs, alone or in combination, can be effective for ongoing management in pregnant patients with highly symptomatic SVT:
Digoxin
Flecainide
Metoprolol
Propafenone
Propranolol
Sotalol
Verapamil
(IIa, C-LD)
573
Catheter ablation may be reasonable in pregnant patients with highly symptomatic, recurrent, drug-refractory SVT with efforts toward minimizing radiation exposure. (IIb, C-LD)
573
Oral amiodarone may be considered for ongoing management in pregnant patients when treatment of highly symptomatic, recurrent SVT is required and other therapies are ineffective or contraindicated. (IIb, C-LD)
573
SVT in Older Populations
Table 23. Acute Treatment of SVT in Older Populations
Diagnostic and therapeutic approaches to SVT should be individualized in patients more than 75 years of age to incorporate age, comorbid illness, physical and cognitive functions, patient preferences, and severity of symptoms. (I, B-NR)
573
Recommendation Grading
Overview
Title
Management of Adult Patients With Supraventricular Tachycardia
He purpose of this joint ACC/AHA/HRS document is to provide a contemporary guideline for the management of adults with all types of SVT other than atrial fibrillation (AF).