Masimo Radical Signal Extraction Manuel de l'opérateur télécharger pdf (Page 84)

5-8 Radical-7 Signal Extraction Pulse CO-Oximeter Operator’s Manual

Perfusion Index (PI) Delta Alarm

Perfusion Index gives an indication of the level of perfusion at the monitored site. The Radical-7

measures perfusion at the SpO

site by comparing the pulsatile signal to the non-pulsatile signal,

and expressing that ratio as a percentage. PI has been clinically proven to be useful as a predictor

of the level of illness in neonates and adults and that PI may change dramatically in response to

sympathetic changes caused by inhalational agents and pain stimulation

. If PI decreases over

time, there may be underlying physiological reasons that may need to be addressed.

De Felice C, Latini G, Vacca P, Kopotic RJ. The pulse oximeter perfusion index as a

predictor for high illness severity in neonates. Eur J Pediatr. 2002;161:561-562.

The 3D ALARM provides an audible and visual alert to important changes in perfusion compared

to the patient’s baseline PI rate. The baseline is set by the Radical-7 once the user has enabled

the alarm. The baseline is 30 seconds of currently averaged PI. The 3D ALARM includes a

user-selectable PI Delta Alarm. This allows the clinician to request an audible and visual alarm if

perfusion at the monitored site decreases by a specified level (delta) over a specified window of

time. Three of the variables are selectable by the user within established ranges as noted below:

Set Baseline: Select OFF or SET. Default is OFF.

PI Delta % Change: Range of 10% to 100%. Default is 50%.

PI Delta Timeout

Range of 1 min, 5 min, 30 min, 1 hr. 4 hr, 8 hr, 12 hr, 24 hr, 36 hr, 48 hr

and NONE. Default is NONE.

PI Delta Baseline

Displays OFF, the current PI baseline or TIMEOUT.

NOTE: This is a Read Only display

and not user interactive.

USER INTERACTION TO IMPLEMENT PI DELTA ALARM

The PI Delta Alarm function is enabled in the Radical-7 by the following method:

1. Select the 3D ALARM menu from the main menu page.

2. Select PI Delta.

3. The PI Delta Alarm menu will be displayed and the user can select from the following entries:

Set Baseline: Select OFF or SET. Default is OFF.

PI Delta % Change: Range of 10% to 100%. Default is 50%.

PI Delta Timeout

Range of 1 min, 5 min, 30 min, 1 hr. 4 hr, 8 hr, 12 hr, 24 hr, 36 hr, 48 hr

and NONE. Default is NONE.

PI Delta Baseline

Displays OFF, the current PI baseline or TIMEOUT.

NOTE: This is a Read Only display

and not user interactive.

Alarms and Messages

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 115 116

Pas de commentaire

Masimo Radical Signal Extraction Manuel de l'opérateur Page 84