[Angioplasty in acute myocardial infarction in patients transferred from other hospitals]

Area of Science:

• Cardiology
• Interventional Cardiology
• Emergency Medicine

Background:

• Acute myocardial infarction (AMI) management often involves reperfusion therapies like primary or rescue angioplasty.
• Initial diagnosis typically occurs at local hospitals, necessitating transfer for advanced interventional procedures.

Purpose of the Study:

• To assess the feasibility and safety of interhospital transport for patients requiring angioplasty for AMI.
• To compare outcomes between direct admission and interhospital transfer for primary and rescue angioplasty.

Main Methods:

• A prospective observational study included 50 consecutive patients with AMI between January 1999 and April 2000.
• Patients were categorized into direct primary angioplasty (n=20), transferred primary angioplasty (n=14), and transferred rescue angioplasty (n=16).
• Key metrics included interhospital transport complications, time intervals, and left ventricular ejection fraction.

Main Results:

• No severe complications were observed during interhospital transport.
• While symptom-to-hospitalization times were similar, symptom-to-balloon inflation was significantly longer in the rescue angioplasty group (340 min vs. 130-181 min).
• All patients survived follow-up (median 230 days), with comparable left ventricular ejection fractions across groups.

Conclusions:

• Acute interhospital transfer for primary or rescue angioplasty is a feasible and safe strategy for selected AMI patients.
• This approach enables timely reperfusion therapy in a tertiary care setting, even with initial diagnosis at local facilities.