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[Comparative analysis of reperfusion time in primary angioplasty vs thrombolysis. Success vs time]
C Martínez Sánchez1, C Martínez, A Lasses
1Unidad de Cuidados Coronarios, Instituto Nacional de Cardiologìa Ignacio Chávez, México, D.F.
Insights
Primary angioplasty is more effective than thrombolysis for acute myocardial infarction patients, achieving higher infarct artery patency rates. Thrombolysis was faster but less successful in restoring blood flow.
Area of Science:
- Cardiology
- Emergency Medicine
- Interventional Cardiology
Background:
- Acute myocardial infarction (AMI) requires rapid reperfusion therapy.
- Thrombolysis and primary angioplasty are key treatments for AMI.
- Comparing treatment efficacy is crucial for patient outcomes.
Purpose of the Study:
- To compare the effectiveness of thrombolysis versus primary angioplasty in AMI patients.
- To evaluate infarct-related artery (IRA) patency rates between the two treatment groups.
- To assess reperfusion success in AMI management.
Main Methods:
- A study of 398 AMI patients treated within six hours of symptom onset.
- Group 1: received streptokinase thrombolysis (n=198).
- Group 2: received primary angioplasty (n=200).
Main Results:
- Door-to-needle time for thrombolysis was 48 +/- 12 min.
- Door-to-balloon time for angioplasty was 84 +/- 30 min (p < 0.001).
- IRA patency rate was 45.3% after thrombolysis vs. 85.5% after angioplasty (p < 0.005).
Conclusions:
- Primary angioplasty demonstrated superior effectiveness in achieving IRA patency.
- While thrombolysis was initiated faster, it resulted in lower reperfusion rates.
- Angioplasty is more effective for achieving TIMI 3 flow in AMI patients.
Unlabelled:
We studied 398 patients with diagnosis of acute myocardial infarction who arrived within the first six hours of symptom onset that were treated with thrombolysis or primary angioplasty, they were divided in two groups: Group 1 (n = 198), those treated with 1.5 million U of streptokinase over 60 min and Group 2 (n = 200), those treated with primary angioplasty. In Group 1 the "pain-door" time was 3.7 +/- 1.7 hs vs 3.8 +/- 2.4 hs in group 2 (p = NS). The "door-needle" time was 48 +/- 12 min. compared with the "door-balloon" time of 84 +/- 30 min (p < 0.001). In Group 1, 154 (77.6%) of the patients had clinical of reperfusion after thrombolysis, 58 of them underwent coronary angiography and had an infarct related artery (IRA) patency rate of 45.3%. In Group 2 the IRA patency rate was 85.5% (p < 0.005).
Conclusion:
Thrombolysis was achieved in a lesser period of time but our findings showed that primary angioplasty was more effective obtaining a TIMI 3 flow.