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Rigshospitalet - a part of Copenhagen University Hospital
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Temporal trends in survival after out-of-hospital cardiac arrest in patients with and without underlying chronic obstructive pulmonary disease

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  • Sidsel G Møller
  • Shahzleen Rajan
  • Fredrik Folke
  • Carolina Malta Hansen
  • Steen Møller Hansen
  • Kristian Kragholm
  • Freddy K Lippert
  • Lena Karlsson
  • Lars Køber
  • Christian Torp-Pedersen
  • Gunnar H Gislason
  • Mads Wissenberg
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AIM: Survival after out-of-hospital cardiac arrest (OHCA) has tripled during the past decade in Denmark as a likely result of improvements in cardiac arrest management. This study analyzed whether these improvements were applicable for patients with chronic obstructive pulmonary disease (COPD).

METHODS: Patients ≥18 years with OHCA of presumed cardiac cause were identified through the Danish Cardiac Arrest Registry, 2001-2011. Patients with a history of COPD up to ten years prior to arrest were identified from the Danish National Patient Register and compared to non-COPD patients.

RESULTS: Of 21,480 included patients, 3056 (14.2%) had history of COPD. Compared to non-COPD patients, COPD patients were older (75 vs. 71 years), less likely male (61.2% vs. 68.5%), had higher prevalence of other comorbidities, and were less likely to have: arrests outside private homes (17.7% vs. 28.3%), witnessed arrests (48.7% vs. 52.9%), bystander cardiopulmonary resuscitation (25.8% vs. 34.8%), and shockable heart rhythm (15.6% vs. 29.9%), all p<0.001; while no significant difference in the time-interval from recognition of arrest to rhythm analysis by ambulance-crew; p=0.24. From 2001 to 2011, survival upon hospital arrival increased in both patient-groups (from 6.8% to 17.1% in COPD patients and from 8.2% to 25.6% in non-COPD patients, p<0.001). However, no significant change was observed in 30-day survival in COPD patients (from 3.7% to 2.1%, p=0.27), in contrast to non-COPD patients (from 3.5% to 13.0%, p<0.001).

CONCLUSIONS: Despite generally improved 30-day survival after OHCA over time, no improvement was observed in 30-day survival in COPD patients.

Original languageEnglish
JournalResuscitation
Volume104
Pages (from-to)76-82
ISSN0300-9572
DOIs
Publication statusPublished - 6 May 2016

ID: 46447095