Category of intervention | Specific interventions | Alarm system generation | Timing |
New technology | Voalte implementation with Connexall integration | 2 | October 2014 |
Airstrip go-live | 2 | December 2014 | |
New monitor system go-live | 3 | January 2017 | |
Airstrip discontinuation | 3 | January 2017 | |
Alarm logic | Progressive increase of low SpO2 alarm delays | ||
| 2 | October 2015 | |
+10 s for 70%<SpO2<79% +5 s for 60%<SpO2<69% | 2 | April 2016 | |
+15 s for 70%<SpO2<79% +5 s for 60%<SpO2<69% | 3 | February 2017 | |
Progressive increase of high SpO2 alarm delays, if parameter set | |||
| 2 | June 2015 | |
| 2 | April 2016 | |
Progressive increase in amount of ventricular ectopy per minute needed to trigger alarm | |||
| 2 | January 2015 | |
| 3 | February 2017 | |
Deactivation of 20 system-level alarms | 2 | February 2015 | |
Addition of high heart rate alarm delay (if rate <220 bpm), +15 s | 2 | April 2016 | |
Addition of low heart rate and respiratory rate alarm delay, +15 s | 3 | February 2017 | |
Delay of remaining system-level alarms, +120 s | 3 | February 2017 | |
Process changes | Decrease initial and secondary notifications of alarms to nursing via escalation algorithms | ||
| 2 | March 2015 | |
| 2 | June 2016 | |
| 3 | March 2017 | |
Turn off in-room alarm volume | 2 | November 2015 | |
Improve per cent of leads changed every 24 hours to >80% | 2 | January 2016 | |
Condition-specific vital sign alarm parameters | 3 | January 2017 |
Bold indicates key interventions annotated on statistical process control charts.
PVC, premature ventricular contraction; SpO2, pulse oxygenation level.