A short delay from out of hospital cardiac arrest to call for ambulance increases survival.

Abstract:

AIM:To describe the relative impact on survival of the delay from estimated time of collapse to call for an ambulance among patients who suffer from a bystander witnessed out of hospital cardiac arrest of a cardiac aetiology. METHODS:A majority of all ambulance organizations in Sweden (covering 85% of Sweden inhabitants) participate in a National survey of out of hospital cardiac arrest. RESULTS:In all there were 9340 patients with a bystander witnessed cardiac arrest of a cardiac aetiology in whom cardiopulmonary resuscitation (CPR) was attempted participating in this survey. Survival at one month among patients with a delay between estimated time of collapse and call for ambulance of < or =4 min (median) was 6.9% versus 2.8% among patients with a median of >4 min (P<0.0001). When adjusting for age, sex, initial rhythm, estimated interval between collapse and start of CPR, place of arrest and the interval between call for ambulance and arrival of the rescue team, the odds ratio for survival was 0.70 (0.95% CI. 0.58-0.84) per unit increase of the natural logarithm of delay in minutes between collapse and call. CONCLUSION:Among patients with a bystander witnessed out of hospital cardiac arrest of a cardiac aetiology increased delay from estimated time of collapse to call for an ambulance decreased the chance of survival.

journal_name

Eur Heart J

journal_title

European heart journal

authors

Herlitz J,Engdahl J,Svensson L,Young M,Angquist KA,Holmberg S

doi

10.1016/s0195-668x(03)00475-5

subject

Has Abstract

pub_date

2003-10-01 00:00:00

pages

1750-5

issue

19

eissn

0195-668X

issn

1522-9645

pii

S0195668X03004755

journal_volume

24

pub_type

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