Rastelli Classification (Complete AVSD)
The Rastelli classification of the complete atrioventricular septal defect, by the morphology of the superior (anterior) bridging leaflet, types A/B/C.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Rastelli type
- A - attached to the ventricular septal crest (most common)
Result: Rastelli type A: the superior bridging leaflet is attached to the crest of the ventricular septum, the most common type.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Type A
- Superior bridging leaflet attached by chordae to the crest of the ventricular septum (most common).
- Type B
- Anomalous chordal attachments to a right-ventricular papillary muscle (rarest).
- Type C
- Free-floating superior bridging leaflet, unattached to the septum (often with tetralogy of Fallot).
What you enter
- Rastelli type
How this is calculated
Rastelli GC, Kirklin JW, Titus JL. Anatomic observations on complete form of persistent common atrioventricular canal with special reference to atrioventricular valves. Mayo Clin Proc. 1966;41(5):296-308. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.