Table 1.

Symbolic representation of the prospective pre-post repeated measure design

Preintervention	Evidence-based intervention Phase I	Evidence-based intervention Phase II	Evidence-based intervention Phase III	Evidenced-based intervention Phase IV
	EB Didactic Impella Education Sessions March 2014.	Impella Patient Event-Based Simulation June–July 2014.	Impella Checklist Introduction September 2014. Impella Patient Event-Based Simulation September–December 2014.	Impella Self-Confidence and Comfort Survey February 2017. Impella Simulation-Based Education February–March 2017.

Preintervention surveys completed by participants and preintervention organisational and patient-level observations	Postintervention survey completed by participants	Postintervention survey completed by participants	Postintervention survey completed by participants and organisational and patient level observations	Postintervention survey completed by participants
Impella Self-Confidence and Comfort Survey October–November 2013. Patient Safety Quality Incident Reports (PSQI) for Impella Patients January–September 2014.	Impella Self-Confidence and Comfort Survey April–May 2014.	Impella Self-Confidence and Comfort Survey July–August 2014.	Impella Self-Confidence and Comfort Survey July–August 2014. Impella Checklist Design Questionnaire December 2014–January 2015. Patient Safety Quality Incident Reports for Impella Patients September 2014–May 2015. Mannequin Outcomes Simulation Video Analysis May–June 2015.	Impella Self-Confidence and Comfort Survey June–July 2017.