COMPARATIVE STUDY
JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL

Comparison of two intraosseous infusion systems for adult emergency medical use

Thorsten Brenner, Michael Bernhard, Matthias Helm, Sara Doll, Alfred Völkl, Nicole Ganion, Claudia Friedmann, Marcus Sikinger, Jürgen Knapp, Eike Martin, André Gries
Resuscitation 2008, 78 (3): 314-9
18573590

INTRODUCTION: The current guidelines of the European Resuscitation Council (ERC) stipulate that an intraosseous access should be placed if establishing a peripheral venous access for cardiopulmonary resuscitation (CPR) would involve delays. The aim of this study was therefore to compare a manual intraosseous infusion technique (MAN-IO) and a semi-automatic intraosseous infusion system (EZ-IO) using adult human cadavers as a model.

MATERIALS AND METHODS: After receiving verbal instruction and giving their written informed consent, the participants of the study were randomized into two groups (group I: MAN-IO, and group II: EZ-IO). In addition to the demographic data, the following were evaluated: (1) Number of attempts required to successfully place the infusion, (2) Insertion time, (3) Occurrence of technical complications and (4) User friendliness.

RESULTS: Evaluation protocols from 84 study participants could be evaluated (MAN-IO: n=39 vs. EZ-IO: n=45). No significant differences were seen in the study participants' characteristics. Insertion times (MW+/-S.D.) of the respective successful attempts were comparable (MAN-IO: 33+/-28s vs. EZ-IO: 32+/-11s). When using the EZ-IO, the access was successfully established significantly more often on the first attempt (MAN-IO: 79.5% vs. EZ-IO: 97.8%; p<0.01). The EZ-IO was also found to have more advantages in terms of technical complications (MAN-IO: 15.4% vs. EZ-IO: 0.0%; p<0.01) and user friendliness (school grading system: MAN-IO: 1.9+/-0.7 vs. EZ-IO: 1.2+/-0.4; p<0.01).

CONCLUSIONS: In an adult human cadaver model, the semi-automatic system was proven to be more effective. The EZ-IO gave more successful results, was associated with fewer technical complications, and is user friendlier.

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