Analysis of cardiac data

A system for analysing cardiac data relating to a patient, comprising:

• a data module for providing cardiac data relating to the patient;
• an analysis module for:
• identifying a plurality of types of property;
• determining a plurality of context lengths, wherein a context length is determined for each type of property, and wherein each context length defines a number of heartbeats to be used for determining a property;
• determining a plurality of properties of the cardiac data, wherein each property is determined over the determined context length for the type of said property;
• a comparison module for comparing the plurality of properties against one or more predetermined threshold values, thereby to indicate a probability of the patient experiencing a cardiac event;
• and
• a presentation module for providing an output based on the comparison.

An apparatus for analysing patient health using data relating to a patient, comprising:

• an analysis module for:
• identifying a plurality of types of property;
• determining a plurality of context lengths, wherein a context length is determined for each type of property, and wherein each context length defines a number of heartbeats to be used for determining a property;
• determining a plurality of properties of the cardiac data, wherein each property is determined over the determined context length for the type of said property;
• a comparison module for comparing the properties against one or more predetermined threshold values, thereby to indicate a probability of the patient experiencing a cardiac event;
• and
• a presentation module for providing an output based on the comparison.