Posterior Fascicle

Normal ventricular depolarization begins with the septal fascicle of the left bundle branch (causing a Q wave) followed by a simultaneous depolarization of the remaining ventricular walls via the right and left bundle branches. The left bundle branch splits into the septal, anterior and posterior fascicles. A damaged conduction system can lead to the blockage of any or all of these bundle branches (or fascicles).

An incomplete block of the anterior or posterior fascicle of the left bundle branch is called a hemiblock. A hemiblock has a normal QRS duration of less than 0.12 seconds (unless a RBBB coexists). Left anterior hemiblock (LAHB) is diagnosed if the net QRS deflection in lead II is negative (deeper S wave than height of R wave). About 98% of all hemiblocks are anterior hemiblocks.

1. Six Second ECG Guidebook (2012), T Barill, p. 151

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  Six Second ECG Intensive Six Second ECG Mastery 12 Lead ECG & ACS 12 Lead Advanced
Prerequisite

None

None

Any Six Second ECG Course

12 Lead ECG & ACS

Time Frame

8 hours (1-day Course or 2 evenings)

20 hours 3-day Course

8 hours 1-day Course

8 hours 1-day Course

Tuition

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$675

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Completion Card
Exam and Certification
SkillStat 2U-able
Reference materials included
Dynamic ECG rhythm interpretation
Static ECG rhythm interpretation
Clinical Impact Mapping
Acute Coronary Syndromes Overview
Acute Coronary Syndromes In-Depth
ST Segment & T Wave Differential
Identify Bundle Branch Blocks
15 | 18 Lead View Mapping
Electrical Axis
R Wave Progression
Left Bundle Branch Blocks with ACS
Atypical Findings
Acute Non-Ischemic Disease Conditions
Special Cases

•-included;     ○-reviewed
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