Dr Signouret Thomas Alarms Externalisation. Patients Vital prognosis committed Multiorgan failure...
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Transcript of Dr Signouret Thomas Alarms Externalisation. Patients Vital prognosis committed Multiorgan failure...
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Dr Signouret Thomas
Alarms Externalisation
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Patients Vital prognosis committed Multiorgan failure
Cares : Invasives, painfull, 24 h/24 Life support equipment: ventilator, dyalisis,
infusion pumps Monitoring: 24 h/24
Caregivers Monitoring device
Intensive care unit
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Currently average noise: 60 → 70 dB Alarms : 70 → 80 dB !!! Staff conversations: 59 → 90 dB
Bush-Vishniac J acoust soc Am 2005 10 à 25 % of alarms do induce a therapeutic modification
Lawless ST Crit Care Med 1994 Patients:
Disturbance Tachycardia, hypertension Pituitary and adrenal gland stimulation
Xie Crit care 2009 Nurses: Concentration, stress, Phenomen of alarm fatigue
Morrison Crit Care Med 2003Chambrin MC crit care 2001
Noise: World Health Organisation guidelines: 35→40 dB
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Sleep disturbance:
Slower healing
Cognitive function
Décrease immune response
ICU delirium : 20 →80 % ↗ lenght of stay
↗ morbi-mortalityEly EW JAMA 2004
Noise is one of many factors of sleep disturbance: 17→ 56 %
Xie Crit care 2009
Link between noise and sleep disturbance ?
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1. Remove the cardiacs monitor alarms from the
room to the centrale station
2. Close the patient door’s room
3. Pb: What about the others devices Alarm’s ?
4. Need a translation of all the alarm in the same
language (HL7): Capsultech®
5. Need to bring and allocate the alarm to the
caregiver: Connexall®
Historic
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Decrease the noise due to the alarms in the patient room.
Allow the door closing: Decrease the noise from the nursing station
- 4 dB: Lawson Am J Crit Care 2010 Overpressure level respected in the unit
Aspergillose prevention
R113: Référentiel struct Vdef 2011
Alarms send to caregivers Tracability
Aims of the Externalisation alarms
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Cardiac arrest(vital priority) : Vital emmergency who need an immediat respons of all the caregivers( nurses and doctor) of intensive care unit
Critical (high priority ) : Urgent situation who require an immediat response of caregivers
Grave (medium priority) : Imminent risk who requires a rapid response of caregivers
Message (low priority) : Attention of medical staff is require
European standard medical devices.EN 475:1995
Définition of gravity level
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Changement poche Réinjection Alerte changement poche Changement poche MessagePression transmembranaire élevée Alerte PTM élevée PTM ↗ GraveGain excessif poids patient Arrêt pompe sang ↕ pompe sang Critique
Mapping alarms
Arrêt pompe (= Occlusion) Occlusion Perfusion ↕ PSE GraveRelais seringue imminent Relais seringue imminent relais PSE imminent MessageBulle d’air (Pompe) Bulle d'air perfusion bulle d'air Grave
Fibrillation V Fibrillation ventriculaire Fibr V VitaleTachycardie V Tachycardie Ventriculaire TV CritiqueCouplet Couplet Couplet Message
Cause/message machine Affi chage Connexall affi chage simplifié Criticité
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Delai total(sec)
Delai Connexall
(sec)
Duree apres ackw
Nombre de repetitions
Interval entre chaque
repetitions (sec)
Duree apres ackw
Nombre de repetitions
Interval entre
chaque (sec)
Duree apres ackw
Nombre de
repetitions
Interval (sec)
Vitale 5 2 90 9999 15 0 0 1 0 0 1
Critique 5 2 90 2 20 90 2 20 60 0 40
Grave 10 7 90 2 30 90 2 30
Message 15 12 9999 0 20 0 0 15 0 0 15
Specification pour chaque alarme
Primaire Secondaire Backup
Workflow
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The Daily Job of the Nurse
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Hardware connectivity
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Check devices connexion
Specific connection by DIM Capsultech® on device RS232 outlet
Connection IT wires on DATACAPTOR®module for sending the information on the network
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Connexall central station: Assignement of each patient on an iPoD which is
dedicated to a nurse
Sélect and Assign the patients
303 302301305304
R2.2 R2.1
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Assignment
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Connexall Central stationMain Screen
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Alarms on mobile Device
Arrêt cardiaque box 1
Acknowledgment
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Golive on a five beds unit after a training of all nurses of the unit
Connection of all devices Good expression of the sonor Alarms with right
tonality, gravity and workflow Visual alarms: Good rendering Doors closed recently We left the sound in the box due to an IT server
issue
Currently
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Log out the devices from the datacaptor
4 or 5 network Drager Capsultech Connexall Hopital européen Marseille Apple
Regulated Medical Devices Class II FDA
Alarm Externalisation Risk
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A visual indicator of log out on connexall central station
An automatic detection of IT server issue by heart bit then
an alarm message with a workflow to: Drager IT engineer
Biomed
Doctor
Chief nurse
A new device who avoid apple network
Evaluation the quality of caregivers réaction
What we expected ? Sécurity
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Transitory (2min) Inhibition of the transmission of all alarm on the Connexall system when the Nurse active “a nursing function”
Showing the waves in live in case of alarm: Link patient watch
Sending vocal message with: 1st : the sound characteristic of level of gravity 2nd : the number of room 3rd : the message of alarm
And Also…: Dévellopment
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Link on patient watch
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Evaluation
1. Safety2. Efficacy3. Perception
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Safety
Description of differents alarm :
Number of alarm / hour and /12 h Number by device Number by nurse Number by gravity
Delay between alarm and acknowledgment
Delay between alarm and resolution
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Efficacy
Average intensity noise during day and night : In the room In the nurse station
Number of Peak level > 80 dB/ h during day and night :
In the room In the nurse station
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Perception
Patient questionnaire : Sleep quality : Richards Campbell Sleep Questionnaire Noise discomfort
Care givers quetionnaire : Noise discomfort Satisfaction
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Primary purpose: réduction of 10 dB by currently average noise level 60 +/- 10 dB
We need 16 patients in each stategies Power: 80 % alpha risk : 5 %
A prospective open interventionnel study évaluate a reducing stratégy of noise by
an alarm notification system
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Extended the externalisation of the alarm to other medical Device ECMO, Bed, Labs, etc…
Extended the externalisation of the alarm to other medical specialties Anesthesia : An anesthesiologist works on several
OR Cardiology
Special device to show the alarm: Samsung gear, Google Glasses
Middle and Long terms Plan
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Thank you for you attention
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Functionnal Basics of Third-Party Alarm Notification Systems
B Moorman Biomed Instrumentation and Technology 2011