• Jerry P Nolan, Jasmeet Soar, Gary B Smith, Carl Gwinnutt, Francesca Parrott, Sarah Power, David A Harrison, Edel Nixon, Kathryn Rowan, and National Cardiac Arrest Audit.
• Royal United Hospital, Bath BA1 3NG, UK. Electronic address: jerry.nolan@nhs.net.
• Resuscitation. 2014 Aug 1; 85 (8): 987-92.

ObjectiveTo report the incidence, characteristics and outcome of adult in-hospital cardiac arrest in the United Kingdom (UK) National Cardiac Arrest Audit database.MethodsA prospectively defined analysis of the UK National Cardiac Arrest Audit (NCAA) database. 144 acute hospitals contributed data relating to 22,628 patients aged 16 years or over receiving chest compressions and/or defibrillation and attended by a hospital-based resuscitation team in response to a 2222 call. The main outcome measures were incidence of adult in-hospital cardiac arrest and survival to hospital discharge.ResultsThe overall incidence of adult in-hospital cardiac arrest was 1.6 per 1000 hospital admissions with a median across hospitals of 1.5 (interquartile range 1.2-2.2). Incidence varied seasonally, peaking in winter. Overall unadjusted survival to hospital discharge was 18.4%. The presenting rhythm was shockable (ventricular fibrillation or pulseless ventricular tachycardia) in 16.9% and non-shockable (asystole or pulseless electrical activity) in 72.3%; rates of survival to hospital discharge associated with these rhythms were 49.0% and 10.5%, respectively, but varied substantially across hospitals.ConclusionsThese first results from the NCAA database describing the current incidence and outcome of adult in-hospital cardiac arrest in UK hospitals will serve as a benchmark from which to assess the future impact of changes in service delivery, organisation and treatment for in-hospital cardiac arrest.Copyright © 2014 Elsevier Ireland Ltd. All rights reserved.

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