Outcomes from out-of-hospital cardiac arrest in nursing and care homes: a cohort study

Out-of-hospital cardiac arrest (OHCA) primarily affects older adults. Individuals in nursing homes are often elderly with significant comorbidities. Nursing homes are staffed by healthcare workers, able to respond immediately to cardiac arrest, including provision of bystander cardiopulmonary resuscitation (CPR). We aimed to describe the characteristics, treatments and outcome of individuals sustaining an OHCA in nursing and care home settings in England.

Patients ≥18 years between 2015 and 2021 with a recorded location of either a nursing or care home from the 'Out-of-hospital Cardiac Arrest Outcomes' registry for England were included. We present descriptive statistics and compare groups, where appropriate, using a χ² test.

We included 4779 patients, of which 2474 (52.5%) were female and 3910 (81.8%) were aged ≥70. Cardiac arrest was witnessed by a bystander in 51.1% (n=2390) of cases. Overall, 80.2% (n=3698) of patients received bystander CPR and where an automated external defibrillator (AED) was available, 77.7% (n=331) were treated with an AED. Return of spontaneous circulation (ROSC) at any time was reported in 1614 (36.7%) and ROSC sustained to hospital handover in 1061 (22.3%) patients. Survival to hospital discharge or 30 days was observed in 97 (2.1%) patients. As age increased, there was a decrease in survival and ROSC sustained to hospital handover.

Survival after OHCA in a nursing home setting was low, despite high rates of key interventions, such as bystander CPR. There may be an opportunity to optimise the availability of AEDs within nursing homes.