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Updated: Aug 20, 2026
Post-Myocardial Infarction Heart Failure in Closed-chest Coronary Occlusion/Reperfusion Model in Göttingen Minipigs and Landrace Pigs
Published on: April 17, 2021
Impact of ST-segment depression resolution on mortality after successful mechanical reperfusion in patients with
Giuseppe De Luca1, Arthur C Maas, Arnoud W J van 't Hof
1Department of Cardiology, ISALA Klinieken De Weezenlanden Hospital, Groot Wezeland 20, 8011 JW Zwolle, The Netherlands.
Insights
Incomplete ST-depression resolution after primary angioplasty for ST-elevation myocardial infarction predicts higher 1-year mortality. This finding highlights its importance as an independent prognostic marker in heart attack patients.
Area of Science:
- Cardiology
- Clinical Medicine
- Interventional Cardiology
Background:
- ST-elevation myocardial infarction (STEMI) is a critical cardiovascular event.
- Primary percutaneous coronary intervention (PCI) is the standard reperfusion therapy for STEMI.
- Assessing prognostic markers post-PCI is crucial for patient management.
Purpose of the Study:
- To evaluate the prognostic significance of ST-segment depression resolution following primary PCI in STEMI patients.
- To determine if incomplete ST-depression resolution independently predicts adverse outcomes.
Main Methods:
- Study included 610 patients with STEMI undergoing successful primary PCI.
- ST-segment depression resolution was assessed post-procedure.
- One-year mortality was the primary outcome measure.
- Multivariate analysis was used to identify independent predictors.
Main Results:
- Incomplete ST-depression resolution (<70%) occurred in 8.2% of patients.
- Patients with incomplete resolution were older, had higher Killip's class, and larger infarcts.
- Incomplete ST-depression resolution was associated with significantly increased 1-year mortality (10% vs 2%, p=0.0004).
- Incomplete ST-depression resolution was an independent predictor of 1-year mortality (p=0.028).
Conclusions:
- Incomplete ST-depression resolution is a significant independent predictor of 1-year mortality in STEMI patients post-primary PCI.
- Monitoring ST-depression resolution can aid in risk stratification and patient management.
- Further research may explore mechanisms linking incomplete ST-depression resolution to adverse outcomes.
Abstract:
The aim of the present study was to evaluate the additional prognostic effect of ST-depression resolution in 610 patients who had ST-elevation myocardial infarction and underwent successful primary angioplasty (postprocedural Thrombolysis In Myocardial Infarction 3 flow and complete resolution of ST-segment elevation). Incomplete resolution of ST-segment depression (<70%) was observed in 50 patients (8.2%). These patients were older, had a higher Killip's class at presentation, had larger infarcts, and had an increased 1-year mortality (10% vs 2%, p = 0.0004). At multivariate analysis, incomplete resolution of ST-segment depression was an independent predictor of 1-year mortality (p = 0.028).
