Atrial tachycardia - Revision history

Danbot: Add verified PubMed references (PMIDs 18570619)

2026-03-22T11:00:12Z

Add verified PubMed references (PMIDs 18570619)

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	==Background==		==Background==
	*Also known as focal atrial tachycardia, Paroxysmal Atrial Tachycardia (PAT), unifocal atrial tachycardia, ectopic atrial tachycardia		*Also known as focal atrial tachycardia, Paroxysmal Atrial Tachycardia (PAT), unifocal atrial tachycardia, ectopic atrial tachycardia<ref>Patel A, Markowitz SM. Atrial tachycardia: mechanisms and management. Expert Rev Cardiovasc Ther. 2008 Jul;6(6):811-22. PMID 18570619</ref>
	*Rate >100 bpm		*Rate >100 bpm
	*Electrical focus that originates outside in the sinus node at a single location		*Electrical focus that originates outside in the sinus node at a single location

Blsimpso: /* External Links */

2021-06-30T16:22:36Z

External Links

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	==External Links==		==External Links==
	*https://litfl.com/atrial-tachycardia-ecg-library/		*[https://litfl.com/atrial-tachycardia-ecg-library/ LITFL - Focal Atrial Tachycardia (FAT)]

	==References==		==References==
	<references/>		<references/>
	[[Category:Cardiology]]		[[Category:Cardiology]]

Elcatracho: /* Background */

2021-03-05T19:59:46Z

Background

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	*Rate >100 bpm		*Rate >100 bpm
	*Electrical focus that originates outside in the sinus node at a single location		*Electrical focus that originates outside in the sinus node at a single location
	**By comparison, reentrant tachycardias (eg. [[\|AVRT, AVNRT~~\|Paroxysmal supraventricular tachycardia~~]]) involve multiple foci/ larger circuits		**By comparison, reentrant tachycardias (eg. [[Paroxysmal supraventricular tachycardia\|AVRT, AVNRT]]) involve multiple foci/ larger circuits
	*Sustained atrial tachycardia can lead to a tachycardia-induced cardiomyopathy.		*Sustained atrial tachycardia can lead to a tachycardia-induced cardiomyopathy.
	*Differs from sinus tachycardia in that the impulses are generated by an ectopic focus somewhere within the atrial myocardium rather than the sinus node.		*Differs from sinus tachycardia in that the impulses are generated by an ectopic focus somewhere within the atrial myocardium rather than the sinus node.

Elcatracho: /* Background */

2021-03-05T19:59:04Z

Background

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	*Rate >100 bpm		*Rate >100 bpm
	*Electrical focus that originates outside in the sinus node at a single location		*Electrical focus that originates outside in the sinus node at a single location
	**By comparison, reentrant tachycardias (eg. AVRT, AVNRT) involve multiple foci/ larger circuits		**By comparison, reentrant tachycardias (eg. [[\|AVRT, AVNRT\|Paroxysmal supraventricular tachycardia]]) involve multiple foci/ larger circuits
	*Sustained atrial tachycardia can lead to a tachycardia-induced cardiomyopathy.		*Sustained atrial tachycardia can lead to a tachycardia-induced cardiomyopathy.
	*Differs from sinus tachycardia in that the impulses are generated by an ectopic focus somewhere within the atrial myocardium rather than the sinus node.		*Differs from sinus tachycardia in that the impulses are generated by an ectopic focus somewhere within the atrial myocardium rather than the sinus node.

Rossdonaldson1: /* Background */

2021-02-27T23:01:57Z

Background

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	*Electrical focus that originates outside in the sinus node at a single location		*Electrical focus that originates outside in the sinus node at a single location
	**By comparison, reentrant tachycardias (eg. AVRT, AVNRT) involve multiple foci/ larger circuits		**By comparison, reentrant tachycardias (eg. AVRT, AVNRT) involve multiple foci/ larger circuits
	*Sustained atrial tachycardia can lead to a tachycardia-induced cardiomyopathy ~~and it is important not to misdiagnose the rhythm as [[sinus tachycardia]] in such cases~~.		*Sustained atrial tachycardia can lead to a tachycardia-induced cardiomyopathy.
	*~~Atrial tachycardia differs~~ from sinus tachycardia in that the impulses are generated by an ectopic focus somewhere within the atrial myocardium rather than the sinus node.		*Differs from sinus tachycardia in that the impulses are generated by an ectopic focus somewhere within the atrial myocardium rather than the sinus node.
	*~~The~~ atrial ~~(P wave)~~, ~~is usually 100-250 /min with abnormally shaped~~ P waves. The combination of ~~focal~~ atrial tachycardia ~~with~~ AV block is particularly common in digoxin toxicity.		*Multifocal atrial tachycardia is similar, but has P waves with at least three different morphologies.
	*Multifocal atrial tachycardia can be mistaken for AF, due to its irregular nature, but closer inspection of the ECG will reveal P waves with at least three different morphologies.		*The combination of atrial tachycardia plus AV block is particularly common in [[digoxin toxicity]].

	==Clinical Features==		==Clinical Features==

Rossdonaldson1: /* Management */

2021-02-27T22:59:21Z

Management

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	**[[Digoxin]]		**[[Digoxin]]
	**[[Amiodarone]]		**[[Amiodarone]]

			==Disposition==

	==See Also==		==See Also==

Rossdonaldson1: /* Management */

2021-02-27T22:59:00Z

Management

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	===Stable===		===Stable===
	''Initial treatment may be aimed at rate control, while later resolution of clinical symptoms usually requires restoration of normal sinus rhythm.''		''Initial treatment may be aimed at rate control, while later resolution of clinical symptoms usually requires restoration of normal sinus rhythm.''
	*If [[digoxin toxicity]], stop drug and consider [[~~Digibind~~]]		*If [[digoxin toxicity]], stop drug and consider [[Digoxin Immune Fab]]
	*[[Beta-blockers]] are first-line, particularly if blood pressure is stable		*[[Beta-blockers]] are first-line, particularly if blood pressure is stable
	*Other options include:		*Other options include:

Rossdonaldson1: /* Management */

2021-02-27T22:58:10Z

Management

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	*[[Beta-blockers]] are first-line, particularly if blood pressure is stable		*[[Beta-blockers]] are first-line, particularly if blood pressure is stable
	*Other options include:		*Other options include:
	*[[Calcium channel blocker]]		**[[Calcium channel blocker]]
	*[[Digoxin]]		**[[Digoxin]]
	*[[Amiodarone]]		**[[Amiodarone]]

	==See Also==		==See Also==

Rossdonaldson1: /* Stable */

2021-02-27T22:57:51Z

Stable

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	===Stable===		===Stable===
	''Initial treatment may be aimed at rate control, while resolution of clinical symptoms usually requires ~~definitive treatment and~~ restoration of normal sinus rhythm.''		''Initial treatment may be aimed at rate control, while later resolution of clinical symptoms usually requires restoration of normal sinus rhythm.''
	*May cardiovert with [[adenosine]] or with [[beta blockers]]
	*If [[digoxin toxicity]], stop drug and consider [[Digibind]]		*If [[digoxin toxicity]], stop drug and consider [[Digibind]]
	*[[Beta ~~blocker~~]] or [[~~calcium~~ channel blocker]] ~~for rate control and/or prophylaxis against recurrent episodes~~		*[[Beta-blockers]] are first-line, particularly if blood pressure is stable
			*Other options include:
			*[[Calcium channel blocker]]
			*[[Digoxin]]
			*[[Amiodarone]]

	==See Also==		==See Also==

Rossdonaldson1: /* Management */

2021-02-27T22:51:35Z

Management

← Older revision		Revision as of 22:51, 27 February 2021
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	===Stable===		===Stable===
			''Initial treatment may be aimed at rate control, while resolution of clinical symptoms usually requires definitive treatment and restoration of normal sinus rhythm.''
	*May cardiovert with [[adenosine]] or with [[beta blockers]]		*May cardiovert with [[adenosine]] or with [[beta blockers]]
	*If [[digoxin toxicity]], stop drug and consider [[Digibind]]		*If [[digoxin toxicity]], stop drug and consider [[Digibind]]