12-Lead ECG Simulator

Beta

Basic Settings

Heart Rate (bpm)60

Duration (seconds)10

QT Interval & Torsades Risk

✨ Pro

QTc (ms)400

Normal: 350-450ms (men), 360-460ms (women). Normal range.

Enable Torsades Risk

Probabilistic triggering based on QTc

Trigger Probability: 0.1% per beat

Sensitive Patient

Triggers at 480ms instead of 500ms

QRS Morphology

✨ Pro

Bundle Branch Blocks

Right Bundle Branch Block

Left Bundle Branch Block

Electrical Axis (QRS)

Toggle to use this slider to adjust the angle of the QRS mean electrical vector to simulate electrical axis changes.

AV Conduction (Sinus Base)

1st Degree AV Block

2nd Deg AVB Type I (Wenckebach)

2nd Deg AVB Type II (Mobitz II)

Dominant Base Rhythms

✨ Pro

Overrides Sinus, AV blocks, PACs & SVT.

Ventricular Tachycardia

Atrial Fibrillation

Atrial Flutter

3rd Degree AV Block

Junctional Rhythm

Wandering Atrial Pacemaker

Multifocal Atrial Tachycardia (MAT)

Ectopy & Dynamic SVT

✨ Pro

PACs

PAC Types Generated:

High RA PACs (40%) - Near SVC junction, normal-looking P-waves

Low Atrial PACs (30%) - Near AV junction, inverted P-waves in inferior leads

Left Atrial PACs (30%) - LA appendage/pulmonary veins, biphasic P-waves

Different origins create distinct P-wave morphologies across leads

Dynamic SVT (PAC-initiated)

Requires PACs enabled.

PVCs

12-Lead ECG Simulation

60 bpm, 10s. Strips: 2.5s. Standard: 25mm/s, 10mm/mV

View:

No ECG data to display

Click "Generate 12-Lead ECG" to start

* This is a simulated 12-lead ECG for educational purposes only.

Opti ECG - Interactive 3D Cardiac Electrophysiology Learning Platform