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March 1, 1988Critical Care Medicine

PetCO2 did not change significantly at increased compression rates, while systolic BP fell progressively from 59 +/- 5 mm Hg at 60/min to 46 +/- 4 mm Hg at 140/min.

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Why the study?

Does increasing external chest compression rate improve end-tidal carbon dioxide concentration and arterial pressure in prehospital cardiac arrest patients?

Population

18 prehospital cardiac arrest patients

Comparison

External chest compression rate increased from… vs Baseline compression rate of 60/min

Design

Other

Authors

JOJoseph P. OrnatoEGEdgar R. GonzalezAGA. RANDOLPH GARNETT

Discussion

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Overview

Should not yet alter CPR rate guidelines; leaves open optimal compression parameters for resuscitation outcomes.

Structured PICO

Does increasing external chest compression rate improve end-tidal carbon dioxide concentration and arterial pressure in prehospital cardiac arrest patients?

P
Population
18 prehospital cardiac arrest patients
I
Intervention
External chest compression rate increased from 60 to 140/min in 20 beat/min increments using a microprocessor-controlled CPR Thumper (ventilation rate, inspiration time, applied force, and 50:50 downstroke:upstroke ratio held constant)
C
Comparator
Baseline compression rate of 60/min
O
Outcome
End-tidal carbon dioxide concentration (PetCO2) and arterial blood pressure (BP)surrogate

Increasing CPR compression rate above 60/min does not improve PetCO2 and progressively decreases systolic blood pressure when compression force is held constant.

Cite This Study

Ornato et al. (1988) studied this question.

synapsesocial.com/papers/6a94de6defe1bb9e53eff47ahttps://doi.org/10.1097/00003246-198803000-00007
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1[The impact of different chest compression frequencies on cardiopulmonary resuscitation outcomes in domestic pigs].2025
  2. 2Chest Decompressions - The Driver of CPR Efficacy: Exploring the Relationship Between Compression Rate, Depth, Recoil Velocity, and End-Tidal CO22024 · 2 citations
  3. 3End tidal carbon dioxide as an haemodynamic determinant of cardiopulmonary resuscitation in the rat1989 · 48 citations
  4. 4Recent Advances in Cardiopulmonary Resuscitation1980 · 1 citations
  5. 5The effects of continuous chest compression protocol on cardiopulmonary resuscitation (CPR) quality and fatigue2026