b'THE CARDIAC REGISTRY TO ENHANCE SURVIVALC A R E SCASE DEFINITIONCARES captures data on all non-traumatic out-of-hospital cardiac arrests where resuscitation is attempted by a 911 Responder (CPR and/or defibrillation). This also includes patients that receive an AED shock by a bystander prior to the arrival of 911 Responders. Inclusion and exclusion criteria are described below (Tables 1 and 2).Table 1. CARES inclusion criteria (all of the following) Patients of all ages who experience a non-traumatic, out-of-hospital cardiac arrest. Patients who are pulseless on arrival of 911 Responder; OR Patients who become pulseless in the presence of 911 Responder; OR Patients who have a pulse on arrival of EMS, where a successful attempt at defibrillation was _undertaken by a bystander prior to arrival of 911 Responder.Table 2. CARES exclusion criteria (any of the following) Unworked/untreated cardiac arrests, to include codes that are terminated immediately upon arrival of EMS because the patient is not a viable candidate for resuscitation due to: Injuries incompatible with life. Signs of decomposition. The presence of rigor mortis or lividity.Presence of a valid DNR. Stillborn neonates/perinatal newborns, born without signs of life. Private EMS transport that did not involve 911 dispatch. Cardiac arrest of clear and obvious traumatic etiology. Bystander suspected cardiac arrest, where ROSC was achieved without the need for defibrillation _or 911 Responder CPR.DATA COLLECTION & ELEMENTSData collection within CARES is based on theData elements collected from EMS providers Utstein-style definitionsa standardizedinclude demographics (i.e. name, age, date template of uniform reporting guidelines forof birth, incident address, gender, and race/clinical variables and patient outcomes thatethnicity), arrest circumstances (i.e. location was developed by international resuscitationtype of arrest, witness status, and presumed experts. 1,2The CARES web-based softwareetiology), and resuscitation-specific data (i.e. (https://mycares.net), links three sources toinformation regarding CPR initiation and/or AED describe each OHCA event: 1) 911 call centerapplication, defibrillation, initial arrest rhythm, data, 2) EMS data, and 3) hospital data. Datareturn of spontaneous circulation [ROSC], field can be submitted in two ways: using a data- hypothermia, and pre-hospital survival status).entry form on the CARES website, or via dailyEMS providers are also able to enter a number upload from an agencys electronic patient-careof optional elements, which further detail arrest record (ePCR) system. Access to the CARESinterventions (i.e. usage of mechanical CPR website is restricted to authorized users, whodevice, ITD, 12 Lead, automated CPR feedback 16 are prohibited from viewing data from anotherdevice, and advanced airway; administration of agency or hospital. drugs; and diagnosis of STEMI).'