Percentage of natural death according to age and gender.

<p>The main percentage of death occurs in last range of ages. In all ranges of age, males are a high percentage of death. Males are indicated in black color. Females are indicated in white color.</p

Genetic data of variants identified, 81 positive cases from the 119 SUD cases.

<p>Genetic data of variants identified, 81 positive cases from the 119 SUD cases.</p

Context of death.

<p>The daily activities had a higher prevalence in cases higher 30 years old. Daily activities are indicated in black color. Sleep is indicated in white color. Exercise/Stress is indicated in grey color.</p

Genetic data of variants identified, 26 positive samples from the 32 cardiomyopathies.

<p>Genetic data of variants identified, 26 positive samples from the 32 cardiomyopathies.</p

Cause of death according to context of death.

<p>The distribution showed that cardiac causes were more prevalent in the context of stress/exercise, while vascular were more prevalent during daily activities. The unexplained cases had a higher presence in context of sleep and stress/exercise. Daily activities are indicated in black color. Sleep is indicated in white color. Exercise/Stress is indicated in grey color.</p

Cause of death distributed according to age.

<p>There is an increase of cardiac causes with age, reaching 54% of cases in the older group of age. However the unexplained cases were common in young below 30 years old, reaching the 66% of cases in youngest group of age. Cardiac is indicated in black color. Vascular is indicated in white color. Pulmonary is indicated in grey color. Unexplained is indicated in vertical lines of grey color. Other causes are indicated in horizontal lines of grey color.</p

Representative microscopic images of samples showing cardiomyopathy.

<p>Left. Hypertrophic Cardiomyopathy (Hematoxylin-Eosin, 20x); Center. Dilated Cardiomyopathy (Hematoxylin-Eosin, 20x); Right. Arrhythmogenic Cardiomyopathy (Masson’s Trichrome, 10x).</p

Proposal of flow chart as forensic protocol guide for Sudden Death cases.

<p>In cases less than 30 years old with a negative macroscopic autopsy or cases suspected of cardiomyopathy should be studied by genetics. Older cases must wait for histological analyses before be studied by genetics.</p