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Primary percutaneous coronary angioplasty and therapeutic hypothermia in out-of-hospital cardiac arrest
Critical Care volume 17, Article number: P309 (2013)
The benefit of primary percutaneous intervention (PCI) in the management of out-of-hospital cardiac arrest (OHCA) is not clear cut . It has historically been used in patients with ST elevation on post-resuscitation electrocardiogram (ECG) although this is a poor predictor of acute coronary occlusion after cardiac arrest . This study investigates the benefit of PCI regardless of post-resuscitation ECG. Benefit is widely claimed for therapeutic hypothermia, so cooling parameters were included.
We analysed all 41 consecutive adults admitted post OHCA to a university hospital ICU between January 2010 and December 2011. Patients received PCI regardless of ECG changes. A Cox proportional hazards model was used to determine the relationship between PCI, cooling and survival to discharge. Routinely collected data such as demographics and details of resuscitation (OHCA Utstein data) were also included.
Survival to hospital discharge was 41% with 29% of survivors discharged to a neurological rehabilitation centre. Multivariate analysis using a Cox proportional hazards model showed PCI to be an independent predictive factor of survival, unrelated to ECG (hazards ratio, 0.0583; 95% CI, 0.0076 to 0.4485). Cooling had no significant impact on patient survival. See Figure 1.
In this small retrospective study primary PCI appears to be an independent predictor of survival after OHCA. This is consistent with other studies suggesting benefit for primary PCI regardless of the post-resuscitation ECG . Cooling was not found to improve survival to discharge but further analysis is required to determine impact on neurological function.
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Hunt, R., Holl, M., Bailey, A. et al. Primary percutaneous coronary angioplasty and therapeutic hypothermia in out-of-hospital cardiac arrest. Crit Care 17, P309 (2013). https://doi.org/10.1186/cc12247
- Cardiac Arrest
- Coronary Angioplasty
- Therapeutic Hypothermia
- Coronary Occlusion
- Percutaneous Intervention