Sudden arrhythmic death syndrome: a national survey of sudden unexplained cardiac death. Issue 5 (19th January 2007)

• Record Type: Journal Article
• Authors: Behr, E R; Casey, A; Sheppard, M; Wright, M; Bowker, T J; Davies, M J; McKenna, W J; Wood, D A
• Is Part Of: Heart. Volume 93:Issue 5(2007)
• Page Start: 601
• Page End: 605
• Publication Date: 2007-01-19
• Subjects: ICD, International Classification of Diseases -- LREC, local research ethics committee -- ONS, Office of National Statistics -- SADS, sudden arrhythmic death syndrome; Heart -- Diseases -- Treatment -- Periodicals; Cardiology -- Periodicals; 616.12
• DOI: 10.1136/hrt.2006.099598
• Languages: English
• ISSNs: 1355-6037

Abstract

Abstract : Objective: To describe the characteristics of sudden arrhythmic death syndrome (SADS) and compare its incidence with official national mortality statistics for unascertained deaths. Design and setting: Sudden unexplained deaths were prospectively surveyed through 117 coroners' jurisdictions in England. Consecutive cases meeting the following criteria were included: white Caucasian, aged 4–64 years, no history of cardiac disease, last seen alive within 12 h of death, normal coroner's autopsy, cardiac pathologist's confirmation of a normal heart and negative toxicology. Main outcome measures: The estimated mortality from SADS was calculated and the official mortality statistics for unascertained causes of deaths in 4–64-year-olds was identified for the same time period. Results: 115 coroner's cases were reported and 56 (49%) SADS victims were identified: mean age 32 years, range 7–64 years and 35 (63%) male. 7 of 39 cases (18%) had a family history of other premature sudden deaths (<45). The estimated mortality from SADS was 0.16/100 000 per annum (95% CI 0.12 to 0.21), compared with an official mortality of 0.10/100 000 per annum for International Classification of Diseases 798.1 (sudden death, cause unknown—instantaneous death) or 1.34/100 000 per annum for unascertained causes of death. Conclusions: Deaths from SADS occur predominantly in young males. When compared with official mortality, the incidence of SADS may be up to eight times higher than estimated: more than 500 potential SADS cases per annum in England. Families with SADS carry genetic cardiac disease, placing them at risk of further sudden deaths. SADS should therefore be a certifiable cause of death prompting specialised cardiological evaluation of families.