Induction of mild hypothermia with infusion of cold (4°C)fluid during ongoing CPR

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Nordmark, JohannaUppsala universitet,Anestesiologi och intensivvård (author)

Induction of mild hypothermia with infusion of cold (4°C)fluid during ongoing CPR

Article/chapterEnglish2005

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2005
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LIBRIS-ID:oai:DiVA.org:uu-98091
https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-98091URI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype

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INTRODUCTION: Therapeutic hypothermia after resuscitation has been shown to improve the outcome regarding neurological state and to reduce mortality. The earlier hypothermia therapy is induced probably the better. We studied the induction of hypothermia with a large volume of intravenous ice-cold fluid after cardiac arrest during ongoing cardiopulmonary resuscitation (CPR). METHODS: Twenty anaesthetised piglets were subjected to 8 min of ventricular fibrillation, followed by CPR. They were randomized into two groups. The hypothermic group was given an infusion of 4 degrees C acetated Ringer's solution 30 ml/kg at an infusion rate of 1.33 ml/kg/min, starting after 1 min of CPR. The control group received the same infusion at room temperature. All pigs received a bolus dose of vasopressin after 3 min of CPR. After 9 min, defibrillatory shocks were applied to achieve restoration of spontaneous circulation (ROSC). Core temperature and haemodynamic variables were measured at baseline and repeatedly until 180 min after ROSC. Cortical cerebral blood flow was measured, using Laser-Doppler flowmetry. RESULTS: All pigs had ROSC, except one animal in the hypothermic group. Only one animal in the hypothermic group died during the observation period. The calculated mean temperature reduction was 1.6+/-0.35 degrees C (S.D.) in the hypothermic group and 1.1+/-0.37 degrees C in the control group (p=0.009). There was no difference in cortical cerebral blood flow and haemodynamic variables. CONCLUSION: Inducing hypothermia with a cold infusion seems to be an effective method that can be started even during ongoing CPR. This method might warrant consideration for induction of early therapeutic hypothermia in cardiac arrest victims.

Subject headings and genre

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Anestesi och intensivvård hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Anesthesiology and Intensive Care hsv//eng
Anaesthetics and intensive care
Anestesiologi och intensivvård
Anestesiologi
Anaesthesiology

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Rubertsson, StenUppsala universitet,Anestesiologi och intensivvård(Swepub:uu)stenrube (author)
Uppsala universitetAnestesiologi och intensivvård (creator_code:org_t)

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In:Resuscitation66:3, s. 357-3650300-95721873-1570

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