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[Prognostic value of persistent ST-segment elevation after successful primary angioplasty]
Francisco Pomar Domingo1, José V Albero Martínez, Enrique Peris Domingo
1Servicio de Cardiología, Hospital General Universitario, Valencia, Spain. fpomard@meditex.es
Revista Espanola De Cardiologia
|August 30, 2002
Summary
Persistent ST-segment elevation after angioplasty indicates higher risk in myocardial infarction patients. This finding highlights the importance of monitoring ST-segment changes post-procedure for improved patient outcomes.
Area of Science:
- Cardiology
- Interventional Cardiology
- Clinical Medicine
Background:
- Successful primary angioplasty restores coronary flow in myocardial infarction but some patients have persistent ST-segment elevation.
- This elevation may indicate inadequate cellular reperfusion despite patent epicardial arteries.
Purpose of the Study:
- To investigate if persistent ST-segment elevation after successful primary angioplasty predicts a worse prognosis in acute myocardial infarction patients.
Main Methods:
- A comparative study of 116 acute myocardial infarction patients post-successful primary angioplasty.
- Patients were divided into two groups: persistent ST-segment elevation (>50%) and reduced ST-segment elevation (<=50%).
- Clinical and angiographic outcomes were compared between the two groups.
Main Results:
- 20 patients (Group II) had persistent ST-segment elevation, while 96 (Group I) showed improvement.
- Group II had higher prevalence of Killip class 4, increased myocardial damage (CK levels), and impaired left ventricular ejection fraction.
- One-year mortality was significantly higher in Group II (30%) compared to Group I (8.3%).
Conclusions:
- Persistent ST-segment elevation after successful primary angioplasty is a significant predictor of adverse events.
- This finding is relevant even when epicardial flow is restored.
- Identifying these patients allows for closer monitoring and potentially tailored therapeutic strategies.