Prediction rules for estimating neurologic outcome following out-of-hospital cardiac arrest

Out-of-Hospital Unwitnessed Cardiopulmonary Collapse and No-Bystander CPR: A Practical Addition to Resuscitation Termination Guidelines

“…In 2004, Haukoos et al reported that unwitnessed arrest could predict lack of survival with a Glasgow Coma Score above 12, which supports the data presented in this study (12). A prospective Finnish study also showed unlikely survival to hospital discharge after unwitnessed cardiopulmonary collapse in an EMS system that included physician responders in the field (7).…”

“…Two studies report that unwitnessed collapse or lack of bystander CPR is associated with low survival rates and poor neurological outcome (8,12). Combining unwitnessed collapse and no-bystander CPR as an independent indicator to predict potential outcome of cardiopulmonary resuscitation has not been previously reported.…”

Long-term cognitive outcomes following out-of-hospital cardiac arrest

“…First, prior cohorts were examined at an earlier point following cardiac arrest survivorship (1 month to 1 year). [22][23][24][25][26] Given the longitudinal nature of the community-based cardiac defibrillation program in Olmsted County, our survivors were appropriately classified as "long-term" with a median survivorship of 8 years since arrest. It is possible that cognitive ability is worse in the initial months following cardiac arrest but compensated in the years that follow.…”

Termination of Resuscitation of Nontraumatic Cardiopulmonary Arrest: Resource Document for the National Association of EMS Physicians Position Statement

“…49 Ong et al performed a secondary analysis of a prospective cohort study of 2,269 patients in Singapore comparing TOR guidelines by Marsden et al, 36 Petrie et al, 50 and Verbeek et al 40 51 Haukoos et al created three decision models to predict "meaningful survival," defined by Glasgow Coma Score (GCS) at hospital discharge, under the premise that previously derived rules have been created for predicting survival, rather than for the outcome of meaningful survival. 52 The first model, to predict survival with a GCS >13, required a witnessed arrest or age <78 years. In a retrospective analysis of 754 patients transported to the Department of Emergency Medicine at Harbor-UCLA Medical Center, this first rule had a positive predictive value of 5% for survival and a negative predictive value of 99.8%.…”