Brugada Criteria (VT vs SVT, wide-complex tachycardia)
Brugada algorithm (1991) for wide-complex tachycardia.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Step 1: absence of an RS complex in all precordial leads
- Yes
Result: Ventricular tachycardia -- Step 1: absence of an RS complex in all precordial leads (V1-V6) is positive (first positive step ends the algorithm).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Steps
- Step 1 absence of RS in all precordial leads, Step 2 R-to-S interval > 100 ms in any precordial lead, Step 3 AV dissociation, Step 4 morphologic VT criteria in both V1-V2 and V6.
- Verdict
- a "yes" at any step diagnoses ventricular tachycardia and stops; all four negative is SVT with aberrancy. Takes the read morphologic findings, not a raw tracing. Cross-links vereckei-avr.
What you enter
- Step 1: absence of an RS complex in all precordial leads
- Step 2: R-to-S interval > 100 ms in any precordial lead
- Step 3: AV dissociation
- Step 4: morphologic VT criteria in V1-V2 and V6
How this is calculated
Brugada P, Brugada J, Mont L, et al. A new approach to the differential diagnosis of a regular tachycardia with a wide QRS complex. Circulation. 1991;83(5):1649-1659. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.