# Myocardial infarction (heart attack) at Ameren Illinois Company
> OSHA SIR `2021087286` · 8/25/2021 · GILLESPIE, ILLINOIS
## Severity
- **1 hospitalization**
- **Body part:** Heart
- **Nature of injury:** Myocardial infarction (heart attack)
## Cause
- **Event:** Exposure to environmental heat
- **Source:** Heat-environmental
## Employer
- **Name:** Ameren Illinois Company
- **Location:** Ameren Illinois Mt Clare Operating Center, GILLESPIE, ILLINOIS, 62033
- **NAICS:** 221121
- **Jurisdiction:** 1
## Narrative

After finishing pole top rescue training in the heat, an employee became ill and was hospitalized, having suffered a myocardial infarction.

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*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*