Cardiac arrest & resuscitation
The cardiopulmonary resuscitation (CPR) compression matrix: relationship among depth, recoil, and rate
Authors' conclusion
A compression rate of 100-104 per minute was associated with the greatest likelihood of simultaneously achieving optimal depth and recoil.
Study context
- Population
- Adults with cardiac arrest treated by professional rescuers in two emergency medical services (EMS) systems, 2017–202127,438 30-s segments
- Participants
- 611 adults
- Exposure
- Optimal compression by compression rate group
- Outcome
- "Optimal" compression (≥50 mm depth and complete recoil) per 30-s CPR segment, by rate group
Methodological detailshierarchical modelling for clustering, two EMS systems
- Hierarchical modelling for clustering
- Two EMS systems
Main finding
As reported in the abstract
"Optimal" compression, after accounting for clustering
Observational data: associations, not effects.
Further findings
Overall compression characteristics (all 30-s segments)
- Median compression rate (compression/min), IQR
- 113 (IQR 109,118)
- Segments with complete recoil
- 42%
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
The CPR compression matrix: relationship among depth, recoil, and rate. Resuscitation. Published 30 April 2026. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →