Philips MP40/50 Manuel D’Utilisation

Event Groups

The event group

• monitors the patient’s signals to detect event triggers

• defines which waveforms are recorded in the event data.

In basic event surveillance only one event group can be active at a time, with Advanced Event 
Surveillance all six groups can be active simultaneously. Active event groups monitor for event triggers. 

Event groups are defined in Configuration Mode. In monitoring mode the groups can be adapted to 
current conditions, for example episode types and threshold levels can be changed .

When an event occurs, information for a 
predefined duration is stored. This is the 
event episode. It includes information 
from a defined period before the trigger, 
called the event pre-time. The episode 
time after the event is called the event 
post-time. If a further event occurs during 
the event post-time it changes a single 
event to a combined event (combi-event). 

Manually-triggered event episodes 
document patient information from the 
time leading up to the event trigger; they 
do not have a post-time.

Average trend

Average trend
High resolution trend
Snapshot events

High Resolution Trend

Graphic Event Review 
window, graphic
Event Episode window

Summary view, graphic and 
tabular
Event Review window, graphic 
and tabular
Event Episode window

Graphic and tabular
Event Review window, 
graphic and tabular
Event Episode window

25 events for 24 hours

25 events for 24 hours
25 events for 8 hours
50 events for 8 hours 
50 events for 24 hours

25 events for 24 hours
25 events for 8 hours
50 events for 8 hours 
50 events for 24 hours

no

yes

no

Event pre-
time

Event post-time

Event trigger

Event Episode