Intraosseous or Intravenous Vascular Access for Out-of-Hospital Cardiac Arrest

Mikael F Vallentin, Asger Granfeldt, Thomas L Klitgaard, Søren Mikkelsen, Fredrik Folke, Helle C Christensen, Amalie L Povlsen, Alberthe H Petersen, Sofie Winther, Lea W Frilund, Carsten Meilandt, Mathias J Holmberg, Kristian B Winther, Allan Bach, Thomas H Dissing, Christian J Terkelsen, Steffen Christensen, Line Kirkegaard Rasmussen, Lone R Mortensen, Mads L LoldrupThomas Elkmann, Anders G Nielsen, Charlotte Runge, Elise Klæstrup, Jimmy H Holm, Mikkel Bak, Lars-Gustav R Nielsen, Mette Pedersen, Gunhild Kjærgaard-Andersen, Peter M Hansen, Anne C Brøchner, Erika F Christensen, Frederik M Nielsen, Christian G Nissen, Jeppe W Bjørn, Peter Burholt, Laust E R Obling, Sarah L D Holle, Lene Russell, Henrik Alstrøm, Søren Hestad, Tanja H Fogtmann, Jens U H Buciek, Karina Jakobsen, Mette Krag, Michael Sandgaard, Birthe Sindberg, Lars W Andersen

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Abstract

BACKGROUND: Out-of-hospital cardiac arrest is a leading cause of death worldwide. Establishing vascular access is critical for administering guideline-recommended drugs during cardiopulmonary resuscitation. Both the intraosseous route and the intravenous route are used routinely, but their comparative effectiveness remains unclear.

METHODS: We conducted a randomized clinical trial to compare the effectiveness of initial attempts at intraosseous or intravenous vascular access in adults who had nontraumatic out-of-hospital cardiac arrest. The primary outcome was a sustained return of spontaneous circulation. Key secondary outcomes were survival at 30 days and survival at 30 days with a favorable neurologic outcome, defined by a score of 0 to 3 on the modified Rankin scale (scores range from 0 to 6, with higher scores indicating greater disability).

RESULTS: Among 1506 patients who underwent randomization, 1479 were included in the primary analysis (731 in the intraosseous-access group and 748 in the intravenous-access group). The successful establishment of vascular access within two attempts occurred in 669 patients (92%) assigned to the intraosseous-access group and in 595 patients (80%) assigned to the intravenous-access group. Sustained return of spontaneous circulation occurred in 221 patients (30%) in the intraosseous-access group and in 214 patients (29%) in the intravenous-access group (risk ratio, 1.06; 95% confidence interval [CI], 0.90 to 1.24; P = 0.49). At 30 days, 85 patients (12%) in the intraosseous-access group and 75 patients (10%) in the intravenous-access group were alive (risk ratio, 1.16; 95% CI, 0.87 to 1.56); a favorable neurologic outcome at 30 days occurred in 67 patients (9%) and 59 patients (8%), respectively (risk ratio, 1.16; 95% CI, 0.83 to 1.62). Prespecified adverse events were uncommon.

CONCLUSIONS: There was no significant difference in sustained return of spontaneous circulation between initial intraosseous and intravenous vascular access in adults who had out-of-hospital cardiac arrest. (Funded by the Novo Nordisk Foundation and others; IVIO EU Clinical Trials Register number, 2022-500744-38-00; ClinicalTrials.gov number, NCT05205031.).

OriginalsprogEngelsk
TidsskriftThe New England Journal of Medicine
ISSN0028-4793
DOI
StatusE-pub / Early view - 31 okt. 2024

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