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Sudden Cardiac Death in Patients With Type 1 Versus Type 2 Diabetes
Faye L Norby1, Kyndaron Reinier1, Audrey Uy-Evanado1
1Center for Cardiac Arrest Prevention, Smidt Heart Institute, Cedars-Sinai Health System, Los Angeles, CA.
Type 1 diabetes (T1D) significantly increases sudden cardiac arrest (SCA) risk more than type 2 diabetes (T2D). T1D patients experienced worse outcomes after SCA, indicating a need for tailored prevention strategies.
Area of Science:
- Cardiology
- Endocrinology
- Public Health
Background:
- Diabetes mellitus, encompassing type 1 (T1D) and type 2 (T2D), is a significant risk factor for cardiovascular diseases.
- Sudden cardiac arrest (SCA) remains a leading cause of mortality worldwide, with diabetes potentially influencing its incidence and outcomes.
Purpose of the Study:
- To investigate the differential association between T1D and T2D and the risk of SCA.
- To compare the outcomes following SCA in individuals with T1D versus T2D.
Main Methods:
- A prospective, community-based case-control study involving 2771 SCA cases and 8313 matched controls (age ≥18 years).
- Logistic regression analysis was employed to assess the independent association of diabetes, T1D, and T2D with SCA risk.
- Data were collected from February 2002 to November 2019.
Main Results:
- Diabetes was present in 36.7% of SCA cases and 23.8% of controls.
- T1D demonstrated a significantly higher odds ratio (4.36) for SCA compared to T2D (1.45) after multivariable adjustment.
- Individuals with T1D had 2.41 times higher odds of SCA compared to those with T2D, with poorer survival and resuscitation rates.
Conclusions:
- T1D is more strongly associated with SCA risk than T2D.
- Outcomes following SCA are less favorable in patients with T1D compared to T2D.
- Diabetes type should be considered in risk stratification and the development of preventive strategies for SCA.
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