Prospective evaluation of tools to assess the psychological response of CPR provision to a relative who has suffered a cardiac arrest: A pilot project

ObjectivesWe aimed to evaluate assessment tools to measure the psychological impact of providing CPR to a relative. We set out to evaluate the Revised Impact of Event Scale (IES-R) and Texas Inventory of Grief (TIG) for comparing CPR providers and non-providers, and to establish whether research of this nature had a negative impact on the participants. We also collected narrative data from CPR providers.MethodsProspective sampling of relatives of patients presenting to hospital who had witnessed their relative have a cardiac arrest and who had performed or witnessed CPR. Participants performed two interviews and completed the IES-R and the TIG.ResultsTwenty-nine cardiac arrest victims presented, with ten relatives enrolled. The IES-R and TIG were feasible, and registered moderate responses from CPR providers and non-providers.There was no significant difference in the IES-R score between CPR providers and non-providers (1.96 vs. 1.04, p = 0.3). There was no significant difference between scores obtained at two different time points (1.75 vs. 1.63, p = 0.43). Participants demonstrated a moderate response on the TIG (mean TIG score 2.8, SD 1.7). Participants did not have a negative perception of study involvement, and actually perceived a benefit from discussion with a health professional.ConclusionIt is acceptable and achievable to prospectively assess the response of a cardiac arrest victim's relatives to the provision of CPR. The test instruments used were appropriate and feasible. Results suggested a sample size of 48 to achieve a statistically significant result.