Strict versus moderate glucose control after resuscitation from ventricular fibrillation

Tuomas Oksanen1, Markus B Skrifvars, Tero Varpula

  • 1Helsinki University Hospital, Intensive Care Units, Jorvi Hospital, Turuntie 150, 02740 Espoo, Finland. tuomas.oksanen@hus.fi

Intensive Care Medicine
|October 12, 2007
PubMed

Insights

Strict glucose control in out-of-hospital cardiac arrest (OHCA) patients did not improve survival compared to moderate control. This study found no additional survival benefit, with similar mortality rates between groups.

Area of Science:

  • Cardiology
  • Intensive Care Medicine
  • Metabolic Disorders

Background:

  • Elevated blood glucose levels post-resuscitation are linked to poorer outcomes in out-of-hospital cardiac arrest (OHCA) patients.
  • Therapeutic hypothermia is a standard treatment for OHCA survivors.

Purpose of the Study:

  • To investigate whether strict glucose control using intensive insulin therapy improves outcomes in OHCA patients.
  • To compare the efficacy and safety of strict versus moderate glucose control in OHCA survivors.

Main Methods:

  • A randomized controlled trial was conducted in two university hospital intensive care units.
  • Ninety OHCA patients with ventricular fibrillation were randomized into strict (4-6 mmol/l) or moderate (6-8 mmol/l) glucose control groups.
  • Both groups received insulin infusion for 48 hours, with therapeutic hypothermia applied.

Main Results:

  • The strict glucose control group achieved better glycemic targets (71% vs 41%) with a median glucose of 5.0 mmol/l versus 6.4 mmol/l.
  • Moderate hypoglycemia occurred more frequently in the strict control group (18% vs 2%).
  • Thirty-day mortality rates were similar: 33% in the strict group and 35% in the moderate group (p=0.846).

Conclusions:

  • Strict glucose control (4-6 mmol/l) offers no additional survival benefit compared to moderate control (6-8 mmol/l) in OHCA patients treated with therapeutic hypothermia.
  • The study did not find improved survival with tighter glycemic management in this patient population.
  • Further research may be needed to define optimal glucose targets in OHCA patients.
Abstract

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