Management of Patients with Chest Pain and Dynamic ECG Changes with Negative Troponin

Evaluation and Risk Stratification

The European Society of Cardiology recommends that patients with chest pain, dynamic ECG changes (including normalization of previously inverted T waves), and negative troponin be considered high-risk and require a complete cardiac evaluation with stress testing or coronary angiography according to individual risk stratification 1, 2
The combination of clinical history, symptoms, vital signs, physical examination, ECG, and laboratory results (including high-sensitivity troponin) is essential for diagnosis and initial risk stratification 3
Patients with dynamic ECG changes, particularly ST-segment depression or transient ST-elevation, are considered high-risk for progression to myocardial infarction or death 2, 4

The European Society of Cardiology states that pseudonormalization of T waves (previously inverted T waves that normalize) is a sign of active myocardial ischemia and should be considered a significant dynamic change 1, 2
It is recommended to obtain an additional ECG in case of recurrent symptoms or diagnostic uncertainty 3, 5
Dynamic ECG changes without persistent ST-segment elevation may indicate an acute coronary syndrome without ST-elevation, even with negative troponin 1, 3

The European Society of Cardiology recommends initial medical treatment to include aspirin (75-150 mg daily), a P2Y12 receptor inhibitor (as indicated), heparin, beta-blockers, and oral or intravenous nitrates in case of persistent or recurrent pain 3, 4
Calcium channel blockers may be preferred over beta-blockers in patients with contraindications or intolerance to beta-blockers 1, 4
During the observation period, special attention should be paid to the recurrence of chest pain, during which an ECG should be recorded 2, 4

The European Society of Cardiology recommends continuous cardiac rhythm monitoring until the diagnosis of acute coronary syndrome is established or ruled out 3, 5
In patients with dynamic ECG changes, a non-invasive stress test (preferably with imaging) or coronary computed tomography angiography (CCTA) should be considered 3, 7
Echocardiography is recommended to evaluate regional and global ventricular function and to rule out differential diagnoses 3, 5