• Andreas Hein, Ann-Britt Thorén, and Johan Herlitz.
• Division of Cardiology, Sahlgrenska University Hospital, SE-413 45 Göteborg, Sweden.
• Resuscitation. 2006 May 1;69(2):191-7.

BackgroundNot all hospitalised patients with symptoms of a presumed or threatened cardiac arrest, for whom the rescue team is alerted, eventually suffer a cardiac arrest. This article aims to describe the characteristics and outcome of "false cardiac arrests".MethodsAll patients hospitalised at Sahlgrenska University Hospital for whom the rescue team was alerted between 1 November 1994 and 15 October 2002 were included.ResultsIn all, there were 1538 calls for the rescue team, of which 70% were caused by cardiac arrest, 9% by respiratory arrest and 21% by "other causes". Survival to discharge was 36% among patients with cardiac arrest, 64% among patients with respiratory arrest and 77% among patients with "other reasons for calling" (p<0.0001 for trend). Among survivors, a cerebral performance categories (CPC) score of 1 at hospital discharge was found in 83% of those with a cardiac arrest, 59% with respiratory arrest and 82% with other reasons for calling (NS for trend).ConclusionAmong patients at a Swedish university hospital for whom the rescue team was alerted, about one-third have a "false cardiac arrest". These patients had a survival rate which was about twice that of patients with a "true cardiac arrest". However, among survivors, cerebral function at discharge was similar, regardless of "false" or "true" cardiac arrest.

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