# AI interprets ST elevation on an ECG as acute myocardial infarction in a young healthy adult, leading to unnecessary emergency catheterization

- **ID:** `medical/misinterpretation-of-ecg-st-elevation-for-benign-early-repolarization`
- **Domain:** medical
- **Category:** data_error
- **Error Code:** `ECG-STEMI-FALSE-POSITIVE-BER`
- **Verification:** ai_generated
- **Fix Rate:** 82%

## Root Cause

Benign early repolarization (BER) is a normal variant seen in up to 5% of the population, especially young males, characterized by concave ST elevation in precordial leads; AI models often lack specificity to differentiate it from ST-elevation myocardial infarction (STEMI) patterns.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| GE Marquette 12SL v24 | active | — | — |
| Philips DXL v3.0 | active | — | — |
| CardioSoft v6.73 | active | — | — |

## Workarounds

1. **Implement a two-step AI pipeline: first detect ST elevation, then apply a secondary model trained specifically to distinguish BER from STEMI using features like J-point notching, concave ST morphology, and absence of reciprocal changes.** (90% success)
   ```
   Implement a two-step AI pipeline: first detect ST elevation, then apply a secondary model trained specifically to distinguish BER from STEMI using features like J-point notching, concave ST morphology, and absence of reciprocal changes.
   ```
2. **Require the AI to output a confidence score and flag any ECG with ST elevation in patients under 40 without chest pain for manual physician review before activating cath lab.** (85% success)
   ```
   Require the AI to output a confidence score and flag any ECG with ST elevation in patients under 40 without chest pain for manual physician review before activating cath lab.
   ```
3. **Integrate a clinical decision rule: if the patient is under 40, has no cardiac risk factors, and has concave ST elevation in V2-V4 without reciprocal changes, recommend serial troponin and repeat ECG in 6 hours rather than immediate catheterization.** (88% success)
   ```
   Integrate a clinical decision rule: if the patient is under 40, has no cardiac risk factors, and has concave ST elevation in V2-V4 without reciprocal changes, recommend serial troponin and repeat ECG in 6 hours rather than immediate catheterization.
   ```

## Dead Ends

- **** — BER is a diagnosis of exclusion; without chest pain or troponin elevation, immediate catheterization is not indicated and carries procedural risks. (80% fail)
- **** — Automated interpretations have high false-positive rates for STEMI in young populations; physician expertise is needed. (70% fail)
- **** — BER typically shows ST elevation in V2-V4 without reciprocal depression, while STEMI often shows reciprocal changes in inferior leads. (60% fail)