Abstract 10476: Patient Characteristics and Survival Outcomes of Cardiac Arrest in the Cardiac Catheterization Laboratory: Insights from Get with the Guidelines-Resuscitation Registry

Abstract

Background: The characteristics and outcomes of in-hospital cardiac arrest (IHCA) in the cardiac catheterization laboratory (CCL) have not been well-described. We compared the characteristics and outcomes of patients with an IHCA in the CCL versus those in the operating room (OR) and the intensive care unit (ICU). Methods: Within the American Heart Association’s Get With the Guidelines-Resuscitation® registry, we identified patients 18 years of age or older with an IHCA in the CCL, OR, or ICU between 2000 and 2019. We compared rates of survival to discharge for patients in the CCL, OR, and ICU. Additionally, we examined predictors of survival to discharge for patients with IHCA in the CCL. Results: There were 6866, 5181, and 181,832 patients with an IHCA in the CCL, OR, and ICU, respectively. Patients with IHCAs in the CCL were more likely to have a shockable cardiac arrest rhythm as compared with those in the OR and ICU. Overall, 2614 (38.1%) patients with IHCA in the CCL survived to discharge, as compared with 30,833 (16.9%) from the ICU and 2096 (40.5%) from the OR. After adjustment for 27 patient and cardiac arrest factors, patients with IHCA in CCL were more likely to survive to discharge as compared with those with IHCA from the ICU (odds ratio, 1.37 [95% CI: 1.29-1.46], p<0.001). In contrast, they were less likely to survive to discharge as compared with those with IHCA in the OR (odds ratio, 0.81 [95% CI: 0.69-0.94], p=0.006). Predictors of survival to discharge in patients with IHCA in the CCL included white race, pulseless ventricular tachycardia/fibrillation, and IHCA during normal hours and on weekdays, while having myocardial infarction during this or prior hospitalization was associated with less survival to discharge. (Table). Conclusion: IHCA in the CCL is not uncommon and has a lower survival rate as compared with IHCA in other procedural areas such as the OR. The reasons for this difference deserve further study given that response to IHCAs in both settings should be similar.