AFLUTTER_TYPICAL
Technical documentation
Typical Atrial Flutter (Counterclockwise)
Macroreentrant circuit around the tricuspid annulus, dependent on the cavotricuspid isthmus (CTI). Counterclockwise activation generates negative 'sawtooth' F waves in inferior leads (II, III, aVF) and positive F waves in V1. Atrial rate ~300 bpm, typically with 2:1 AV block resulting in ventricular rate of ~150 bpm.
Also known as: Typical Atrial Flutter (Counterclockwise) · flutter auricular · aleteo auricular · flutter tipico · flutter comun · flutter auricular tipico · typical atrial flutter · atrial flutter · flutter antihorario
What parameters does the model use?
The following values are applied by the simulation engine to this entity. They govern activation kinematics in the 3D model and the real-time synthesis of the 12-lead electrocardiogram.
What parameters does the model use?
| Parameter | Model value |
|---|---|
| Mechanism | Reentrada |
| Modeled rate | 75–150 bpm (default 150) |
| Regularity | Regular |
| P wave | Flutter waves (F waves) |
| QRS duration | 90 ms |
| QRS morphology | Normal (narrow) |
| AV conduction | 2:1 AV block |
| Severity | Clinically significant |
Which leads should be evaluated?
The catalog marks as primary diagnostic leads II, III, aVF, V1. Negative sawtooth flutter (F) waves in II, III, aVF; positive in V1.
In the simulator, these leads are highlighted on the 12-channel tracing and corresponding vectors are rendered on the 3D model, displaying electrical changes and anatomical origin simultaneously.
Frequently asked clinical questions
How is Typical Atrial Flutter (Counterclockwise) identified on the 12-lead ECG?
Macroreentrant circuit around the tricuspid annulus, dependent on the cavotricuspid isthmus (CTI). Counterclockwise activation generates negative 'sawtooth' F waves in inferior leads (II, III, aVF) and positive F waves in V1. Atrial rate ~300 bpm, typically with 2:1 AV block resulting in ventricular rate of ~150 bpm. The characteristic diagnostic waveforms are generated in real time across the simulated 12-lead tracing.
Which leads are critical for diagnostic confirmation?
The primary diagnostic leads are II, III, aVF, V1. Negative sawtooth flutter (F) waves in II, III, aVF; positive in V1. In the simulator, these channels highlight the correlation with anatomical vectors.
What is the underlying electrophysiological or anatomical mechanism?
It originates from altered conduction in the cardiac conduction system, mediated by reentrada.
How can this condition be explored in the 3D simulator?
MioAtlas offers direct deep-link reproducibility with preconfigured parameters, allowing full 3D cardiac rotation and lead vector inspection.
How do you open this configuration?
The simulator encodes its full state in the query string, providing a stable and reproducible URL:
https://mioatlas.com/simulador/en/?mode=conduction&arr=AFLUTTER_TYPICAL
Related entities
Other entities in the same category within the catalog:
Related clinical comparisons
Sources and bibliographic references
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Anderson RH, Yanni J, Boyett MR, Chandler NJ, Dobrzynski H (2009). "The anatomy of the cardiac conduction system". Clin Anat.
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Kligfield P, Gettes LS, Bailey JJ, et al. (2007). "Recommendations for the standardization and interpretation of the electrocardiogram: Part I: The electrocardiogram and its technology". Circulation.
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Sovilj S, Magjarevic R, Lovell NH, Dokos S (2013). "A simplified 3D model of whole heart electrical activity and 12-lead ECG generation". Comput Math Methods Med.