First septal branch of posterior interventricular artery (Ramus septalis posterior primus arteriae coronariae dextrae)
Educational content only — not medical advice.
Anatomy
The initial penetrating septal branch of the posterior descending artery (PDA), supplying the AV node and the inferobasal interventricular septum.
Clinical notes
Occlusion during inferior myocardial infarction precipitates high-degree or complete atrioventricular block necessitating urgent transvenous pacing.
Related structures
Educational references
FAQ
What is the role of the First septal branch of posterior interventricular artery?
The initial penetrating septal branch of the posterior descending artery (PDA), supplying the AV node and the inferobasal interventricular septum.
Why is the First septal branch of posterior interventricular artery clinically important?
Occlusion during inferior myocardial infarction precipitates high-degree or complete atrioventricular block necessitating urgent transvenous pacing.
Source & license
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