Third degree AV block classification
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Soroush Seifirad, M.D.[2] Cafer Zorkun, M.D., Ph.D. [3]
Overview
There is no established system for the classification of third degree AV block.
OR
Third degree AV block may be classified according to [classification method] into [number] subtypes/groups: [group1], [group2], [group3], and [group4].
OR
Third degree AV block may be classified into [large number > 6] subtypes based on [classification method 1], [classification method 2], and [classification method 3]. third degree AV block may be classified into several subtypes based on [classification method 1], [classification method 2], and [classification method 3].
OR
Based on the duration of symptoms, third degree AV block may be classified as either acute or chronic.
OR
If the staging system involves specific and characteristic findings and features: According to the [staging system + reference], there are [number] stages of [malignancy name] based on the [finding1], [finding2], and [finding3]. Each stage is assigned a [letter/number1] and a [letter/number2] that designate the [feature1] and [feature2].
OR
The staging of [malignancy name] is based on the [staging system].
OR
There is no established system for the staging of [malignancy name].
Classification
There is no established system for the classification of third degree AV block.
OR
third degree AV block may be classified according to [classification method] into [number] subtypes/groups:
- [Group1]
- [Group2]
- [Group3]
- [Group4]
OR
third degree AV block may be classified into [large number > 6] subtypes based on:
- [Classification method 1]
- [Classification method 2]
- [Classification method 3]
third degree AV block may be classified into several subtypes based on:
- [Classification method 1]
- [Classification method 2]
- [Classification method 3]
OR
Based on the duration of symptoms, third degree AV block may be classified as either acute or chronic.
OR
If the staging system involves specific and characteristic findings and features:
According to the [staging system + reference], there are [number] stages of [malignancy name] based on the [finding1], [finding2], and [finding3]. Each stage is assigned a [letter/number1] and a [letter/number2] that designate the [feature1] and [feature2].
OR
The staging of [malignancy name] is based on the [staging system].
OR
There is no established system for the staging of [malignancy name].
Classification
AV dissociation can be sub-classified as
AV Dissociation by Default
In this rhythm there is an independent ventricular pacemaker response to slowing of the dominant atrial pacemaker.
AV Dissociation by Usurpation
In this rhythm there is acceleration of a latent pacemaker that takes control of cardiac conduction by exceeding the intrinsic atrial rate.