Evidence map›Paper›PMID 15367502›Full record

ArticleHeart (British Cardiac Society)2004

Can we define patients with no chance of survival after out-of-hospital cardiac arrest?

J Herlitz, J Engdahl, L Svensson, M Young, K-A Angquist, S Holmberg

Abstract read
In one paragraph

Article in Heart (British Cardiac Society), 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Difficult intubation and outcome after out-of-hospital cardiac arrest: a registry-based analysis.Scandinavian journal of trauma, resuscitation and emergency medicine · 2015
    Article
  8. Review
  9. Review
  10. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

J HerlitzDivision of Cardiology, Sahlgrenska University Hospital, S-413 45 Göteborg Sweden. johan.herlitz@hjl.gu.se
J Engdahl
L Svensson
M Young
K-A Angquist
S Holmberg

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate whether subgroups of patients with no chance of survival can be defined among patients with out-of-hospital cardiac arrest. PATIENTS: Patients in the Swedish cardiac arrest registry who fulfilled the following criteria were surveyed: cardiopulmonary resuscitation (CPR) was attempted; the arrest was not crew witnessed; and patients were found in a non-shockable rhythm.

settingVarious ambulance organisations in Sweden.

designProspective observational study.

resultsAmong the 16,712 patients who fulfilled the inclusion criteria, the following factors were independently associated with a lower chance of survival one month after cardiac arrest: no bystander CPR; non-witnessed cardiac arrest; cardiac arrest occurring at home; increasing interval between call for and arrival of the ambulance; and increasing age. When these factors were considered simultaneously two groups with no survivors were defined. In both groups patients were found in a non-shockable rhythm, no bystander CPR was attempted, the arrest was non-witnessed, the arrest took place at home. In one group the interval between call for and arrival of ambulance exceeded 12 minutes. In the other group patients were older than 80 years and the interval between call for and arrival of the ambulance exceeded eight minutes.

conclusionAmong patients who had an out-of-hospital cardiac arrest and were found in a non-shockable rhythm the following factors were associated with a low chance of survival: no bystander CPR, non-witnessed cardiac arrest, the arrest took place at home, increasing interval between call for and arrival of ambulance, and increasing age. When these factors were considered simultaneously, groups with no survivors could be defined. In such groups the ambulance crew may refrain from starting CPR.

Indexed as

Cardiopulmonary ResuscitationEmergency Medical ServicesPatient SelectionAdvanced Cardiac Life SupportAgedAged, 80 and overAge FactorsFemaleHeart ArrestHumansLogistic ModelsMalePrognosisProspective StudiesSurvival RateSweden

Identifiers

PMID15367502
PMCPMC1768510

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.