Clinical Report: PE2RT Cardiac MRI Score Predicts Outcomes in Takotsubo Syndrome

Overview

This study introduces the PE2RT score, a simple cardiac MRI-based scoring system incorporating pericardial effusion, pleural effusion, right ventricular involvement, and thrombus presence, to predict long-term major adverse cardiovascular events (MACE) in Takotsubo syndrome (TTS) patients. The score effectively stratifies risk and highlights the prognostic value of easily assessable CMR complications in TTS.

Background

Takotsubo syndrome (TTS) is an acute, transient cardiomyopathy characterized by reversible left ventricular regional wall motion abnormalities, often triggered by emotional or physical stress. Although traditionally considered benign with full recovery, recent evidence shows TTS carries a long-term mortality risk comparable to acute myocardial infarction. Cardiac magnetic resonance (CMR) imaging plays a key role in diagnosing TTS and identifying complications such as pericardial and pleural effusions, right ventricular involvement, and ventricular thrombus, which may influence prognosis. However, the prognostic utility of CMR findings in TTS has been underexplored.

Data Highlights

The PE2RT score sums the presence of four CMR-detected complications: pericardial effusion (>5 mm), pleural effusion (>20 mm), right ventricular involvement, and ventricular thrombus, with scores ranging from 0 to 4. Follow-up data assessed major adverse cardiovascular events (MACE), including cardiovascular death, rehospitalization for myocardial injury, arrhythmia, or heart failure symptoms. The study retrospectively analyzed TTS patients undergoing CMR from 2007 to 2021, correlating PE2RT scores with long-term outcomes.

Key Findings

• The PE2RT score is a straightforward, imaging-based tool that quantifies typical TTS complications detectable by CMR.
• Higher PE2RT scores correlate with increased risk of long-term major adverse cardiovascular events (MACE) in TTS patients.
• Pericardial and pleural effusions, right ventricular involvement, and ventricular thrombus are individually associated with worse prognosis.
• CMR assessment of these complications provides incremental prognostic information beyond traditional clinical and imaging parameters.
• The PE2RT score can be easily implemented in routine cardiovascular imaging centers to aid risk stratification.

Clinical Implications

Clinicians should consider incorporating the PE2RT score into the routine CMR evaluation of patients with Takotsubo syndrome to identify those at higher risk for adverse cardiovascular outcomes. Early recognition of pericardial and pleural effusions, right ventricular involvement, and ventricular thrombus can guide closer monitoring and tailored management strategies. This approach facilitates improved prognostication and may influence follow-up intensity and therapeutic decisions.

Conclusion

The PE2RT cardiac MRI scoring system offers a simple, effective method to predict long-term outcomes in Takotsubo syndrome by quantifying key CMR-detected complications. Its adoption in clinical practice can enhance risk stratification and optimize patient management.

References

1. International Takotsubo Diagnostic Criteria, 2018 -- Consensus Statement
2. TTS Epidemiology and Prognosis Studies, 2015-2021 -- Various Authors
3. CMR Imaging in Takotsubo Syndrome, 2014-2020 -- Multiple Sources