[DELAYED CORONARY SURGERY FOR THE TREATMENT OF ACUTE MYOCARDIAL INFARCTION WITH ELEVATED ST SEGMENT]

Area of Science:

• Cardiology and Cardiovascular Surgery
• Interventional Cardiology
• Acute Myocardial Infarction Treatment

Background:

• Early reperfusion therapy (RT) is crucial for acute myocardial infarction (MI) with ST-segment elevation.
• Transdermal coronary surgery (TCS) is often unavailable during the recommended early treatment window.
• Risk stratification is essential to guide reperfusion strategies in MI patients.

Purpose of the Study:

• To develop algorithms for reperfusion therapy prioritizing delayed transdermal coronary surgery (TCS).
• To assess the effectiveness of delayed TCS compared to other MI treatment strategies.
• To evaluate the impact of delayed TCS on overall and cardiovascular mortality in MI patients.

Main Methods:

• Comparative analysis of treatment strategies in 1245 acute ST-segment elevation MI patients (2003-2007).
• Treatment groups included: early TCS, delayed TCS (24-72 hr), thrombolysis without TCS, and conservative therapy.
• Long-term follow-up (5 years) assessed general and cardiovascular lethality in 474 patients.

Main Results:

• Delayed TCS (24-72 hr post-MI) effectively prevents complications and reduces fatal outcomes.
• The effectiveness of delayed TCS was demonstrated even when early intervention was not possible.
• Delayed TCS is a viable option for patients with late admission or transfer from facilities lacking interventional cardiology.

Conclusions:

• Unavailability of early transdermal coronary surgery (TCS) does not preclude its successful delayed application in high-risk acute myocardial infarction (MI) patients.
• Delayed TCS significantly improves outcomes, reducing mortality in both early and late post-infarction periods.
• This strategy offers a critical treatment option for acute MI patients admitted late or transferred from other institutions.