The investigators conducted a randomized, controlled, single-blinded study of patients undergoing CPR for cardiac arrest in the mixed medical-surgical ICUs of four academic teaching hospitals in Tehran, Iran from June 1 to October 31, 2014. Patients were randomized to receive CPR with either standard manual compression, or compression with real-time audiovisual feedback using the Cardio First Angel™ device.
The investigators sought to determine if the addition of a CPR feedback device to routine manual CPR would impact the quality and consistency of chest compression and patient survival. We conducted a randomized, controlled, single-blinded study of patients undergoing CPR for cardiac arrest in the mixed medical-surgical ICUs of four academic teaching hospitals. Patients were randomized to receive either standard manual CPR or CPR using the Cardio First Angel™ (CFA; INOTECH, Nubberg, Germany) feedback device. Recorded variables included return of spontaneous circulation, adherence to CPR guidelines and quality of CPR, nurse satisfaction and CPR associated morbidity.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
TRIPLE
Enrollment
80
Patients in the intervention group received CPR in accordance to published guidelines using the CFA device per manufacturer instructions. The Cardio First Angel™ (CFA; INOTECH, Nubberg, Germany) is a lightweight device that consists of three components . Application of400 ± 30 Newtons of force (41 kg or 90 lb of pressure), which correlates toa sternum compression depth of 50-60 mm, is followed by an audible "click" sound to alert the rescuer to cease compression. The "click" sound is also audible upon spring decompression alerting the rescuer to resume compression. The device does not require an electrical power supply.
CPR in accordance with published international guidelines using standard manual chest compression.
Sustained Return of Spontaneous Circulation
ROSC lasting \> 30 minutes
Time frame: through resuscitation completion, an average of 30 to 60 minutes
Nurse Satisfaction Score
Nurse satisfaction with resuscitation event using a validated tool
Time frame: upon resuscitation completion, an average of 30 to 60 minutes
CPR Duration
Duration of CPR event
Time frame: through resuscitation completion, an average of 30 to 60 minutes
New post-resuscitation Sternum or Rib Fractures
New sternum or Rib Fractures diagnosed post-resuscitation using X-ray, CT scan, or by Autopsy
Time frame: through resuscitation completion, an average of 30 to 60 minutes
CPR Evaluation Score
CPR evaluation score assess quality of CPR including chest compression sing a validated tool
Time frame: upon resuscitation completion, an average of 30 to 60 minutes
CPR Guideline Observation Score
Assesses guideline adherence
Time frame: upon resuscitation completion, an average of 30 to 60 minutes
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