Risk Factors of Sudden Cardiac Death in the Young: Multiple-Year Community-Wide Assessment

CirculationPublished Prospective population-based study

Authors' conclusion

Sports was a trigger of SCA in a minority of cases, and, in most patients, SCA occurred without warning symptoms. Standard cardiovascular risk factors were found in over half of patients

Study context

Population
Subjects with sudden cardiac arrest (SCA) aged 5–34 years, Portland, Oregon, 2002–2015of 3775 SCAs, all ages
Participants
186 subjects
Exposure
Sports-related vs nonsports SCA
  • Sports-relatedn = 26
  • Nonsportsn = 160reference
Outcome
Prevalence of warning signs, sports trigger and CV risk factors in SCA in the young
Methodological detailscommunity-based, Portland, Oregon metropolitan area
  • Community-based
  • Portland, Oregon metropolitan area

Main finding

As reported in the abstract

Warning signs before SCA

29%

Sports as a trigger

26

14%

≥1 established CV risk factors

58%

Observational data: associations, not effects.

Further findings

Survival from cardiac arrest

2.5-fold · P = 0.05

Survival from cardiac arrest

Sports-related SCA more likely to present with shockable rhythms

Sports-related share of SCA by age

Aged ≤18
39%
Aged 19 to 25
13%
Aged 25 to 34
7%

Most common SCA-related conditions

Sudden arrhythmic death syndrome
31%
CAD
22%
Hypertrophic cardiomyopathy
14%

Original publication

Risk Factors of Sudden Cardiac Death in the Young: Multiple-Year Community-Wide Assessment. Circulation. Published 21 December 2017. doi:10.1161/circulationaha.117.031262

Summarised from the published abstract; every number is checked against it

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