A conservative strategy in non-ST-segment elevation myocardial infarction - constraints and prognosis: The situation...

Area of Science:

• Cardiology
• Clinical Medicine
• Public Health

Background:

• Non-ST-segment elevation myocardial infarction (NSTEMI) management strategies vary.
• The Portuguese Registry of Acute Coronary Syndromes provides a valuable dataset for evaluating treatment impacts.
• Understanding the outcomes associated with conservative management is crucial for optimizing patient care.

Purpose of the Study:

• To evaluate the impact of a conservative management strategy in patients with NSTEMI.
• To compare outcomes between conservative management, angiography without intervention, and percutaneous coronary intervention (PCI).

Main Methods:

• A retrospective analysis of 3780 NSTEMI patients from the Portuguese Registry of Acute Coronary Syndromes.
• Patients were stratified into three groups: conservative strategy, angiography without PCI, and PCI.
• Primary endpoint: in-hospital or one-year mortality. Secondary endpoint: in-hospital complications (bleeding, transfusion, ventilation, heart failure, reinfarction).

Main Results:

• Patients managed conservatively were older, more frequently female, and had higher risk factors.
• The conservative group exhibited significantly higher in-hospital mortality (10.6% vs. 1.1% vs. 0.6%) and one-year mortality (26.1% vs. 6.8% vs. 4.1%).
• In-hospital complications were also more frequent in the conservative group (37.2% vs. 18.9% vs. 14.6%).

Conclusions:

• A conservative strategy in NSTEMI patients is an independent predictor of increased in-hospital mortality.
• Conservative management is associated with a higher incidence of in-hospital complications.
• The findings indicate that a conservative approach independently predicts one-year mortality in this NSTEMI cohort.