Acute cardiac care & resuscitationCohort study
Aetiology of in-hospital cardiac arrest and long-term survival after the first 30 days: insights from the Swedish registry for cardiopulmonary resuscitation
- nationwide registry-based cohort study
Authors' conclusion
Aetiology of in-hospital cardiac arrest is independently associated with long-term prognosis after 30-day survival. Compared with myocardial ischemia, infectious, haemorrhagic and pulmonary causes are associated with higher long-term mortality. These findings support aetiology-informed follow-up after IHCA.
Study context
- Population
- Adult in-hospital cardiac arrest (IHCA) patients in Sweden between 2018 and 2023 who survived ≥30 days30-day survivors (median age 71 years, 67% male)
- Participants
- 2,692 patients
- Exposure
- Aetiology categories compared to myocardial ischemia for all-cause mortality
Main finding
As reported in the abstract
Deaths and survival among 30-day survivors · median 3.7-year follow-up
deaths
886 deaths (33%)
overall one-year survival
86%
Observational data: associations, not effects.
Further findings
| Outcome | HR (95% CI) | |
|---|---|---|
| All-cause mortality — infectious vs myocardial ischemia · fully adjusted model | 1.79 (1.30–2.47) | |
| All-cause mortality — haemorrhagic vs myocardial ischemia · fully adjusted model | 1.71 (1.20–2.43) | |
| All-cause mortality — pulmonary vs myocardial ischemia · fully adjusted model | 1.61 (1.24–2.11) | |
| 0.512Hazard ratio (log scale) |
All-cause mortality
- No difference was observed for cardiac and other non-cardiac aetiologies
Original publication
Aetiology of in-hospital cardiac arrest and long-term survival after the first 30 days: insights from the Swedish registry for cardiopulmonary resuscitation. Resuscitation. Published 16 January 2026. doi:10.1016/j.resuscitation.2026.110972
Summarised from the published abstract; every number is checked against it