ECG Fragment Database for the Exploration of Dangerous Arrhythmia

The database contains a set of 2 second fragments of ECG signals with rhythm
disturbances, which are grouped into separate classes according to the degree
of threat to the patient's life. It is intended for practical use to develop
and test the efficiency of algorithms for detecting dangerous arrhythmias for
continuous monitoring systems.

The "MIT-BIH Malignant Ventricular Ectopy Database" (MVED) was selected as the
primary source of ECG records. This database contains heart rhythm
disturbances necessary for research and is widely used for testing and
comparative analysis of various algorithms for detecting arrhythmia threats.
The signal is a modified limb lead II (MLII).