Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
ORIGINAL ARTICLES
The Additive Effect of Atropine Sulfate during Cardiopulmonary Resuscitation in Out-of-hospital Non-traumatic Cardiac Arrest Patients with Non-shockable Rhythm
Takao YanoRyo KawanaKoichiro YamauchiGeorge EndoYasuhiro Nagamine
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JOURNALS OPEN ACCESS

2019 Volume 58 Issue 12 Pages 1713-1721

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Abstract

Objective The updated guidelines of 2015 for cardiopulmonary resuscitation (CPR) do not recommend the routine use of atropine for cardiopulmonary arrest.

Methods The study population included out-of-hospital cardiac arrest (OHCA) patients with non-shockable rhythm who were encountered at a Japanese community hospital between October 1, 2012 and April 30, 2017.

Results At the outcome, the epinephrine with atropine and epinephrine-only groups had a similar survival rate to that at hospital admission (28.7% vs. 26.7%: p=0.723). The odds ratio (OR) for the survival to hospital admission after the administration of atropine with epinephrine was 1.33 (95% CI 1.09-1.62; p<0.01), while that after the administration of epinephrine was 0.64 (95% CI: 0.55-0.74, p<0.01). The ORs for the survival to hospital admission for patients with pulseless electrical activity in the epinephrine-alone group and the atropine with epinephrine group were 0.62 (95% CI 0.49-0.78; p<0.01) and 1.35 (95% CI 0.99-1.83; p=0.06), respectively, and those for such patients with asystole in the epinephrine-alone group and the atropine with epinephrine group were 0.64 (95% CI 0.53-0.76; p<0.01) and 1.39 (95% CI 1.10-1.77; p<0.01), respectively. The OR for the survival to hospital admission after the administration of atropine sulfate (1 mg) was 2.91 (95% CI 1.49-5.67; p<0.01), while that for the survival to hospital admission after the administration of 0, 2 and ≥3 mg atropine sulfate was 0.38 (95% CI 0.29-0.50; p<0.01), 1.54 (95% CI 0.58-4.08; p=0.38) and 0.23 (95% CI 0.09-0.60; p<0.01), respectively.

Conclusion The addition of atropine (within 2 mg) following epinephrine was a comprehensive independent predictor of the survival to hospital admission for non-shockable (especially asystole) OHCA adults.

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© 2019 by The Japanese Society of Internal Medicine
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