Related Experiment Videos
Percutaneous transluminal coronary angioplasty after non-Q-wave acute myocardial infarction
F Alfonso1, C Macaya, A Iñiguez
1Cardiopulmonary Department, Hospital Universitario San Carlos, Universidad Complutense, Madrid, Spain.
Insights
Percutaneous transluminal coronary angioplasty (PTCA) effectively treats ischemia after non-Q-wave acute myocardial infarction (AMI). Patients experienced sustained benefits, remaining largely asymptomatic with no major cardiac events post-procedure.
Area of Science:
- Cardiology
- Interventional Cardiology
Background:
- Ischemia following non-Q-wave acute myocardial infarction (AMI) presents a clinical challenge.
- Identifying effective treatment strategies for this high-risk population is crucial.
Purpose of the Study:
- To prospectively assess the value of percutaneous transluminal coronary angioplasty (PTCA) in managing ischemia after non-Q-wave AMI.
- To evaluate the initial success, restenosis rates, and long-term clinical outcomes of PTCA in this patient group.
Main Methods:
- Prospective assessment of 33 consecutive patients undergoing PTCA for post-AMI angina or silent ischemia.
- Primary PTCA success defined by procedural outcome; restenosis assessed via angiography.
- Clinical follow-up to evaluate sustained symptomatic benefit and subsequent cardiac events.
Main Results:
- High initial PTCA success rate (91%) with no major complications.
- Angiographic restenosis observed in 29% of patients, with 5 undergoing successful repeat PTCA.
- At long-term follow-up (17 months), 93% of patients remained asymptomatic, with no deaths, re-infarctions, or need for bypass surgery.
Conclusions:
- PTCA is an effective treatment for selected patients with ischemia after non-Q-wave AMI.
- The procedure offers sustained symptomatic benefit and a favorable safety profile, comparable to the general PTCA population.
- Selected high-risk patients can achieve positive outcomes without major adverse cardiac events.
Abstract:
The value of percutaneous transluminal coronary angioplasty (PTCA) for ischemia after a non-Q-wave acute myocardial infarction (AMI) was assessed prospectively in 33 consecutive patients. In 30 patients the indication for the procedure was post-AMI angina and 3 patients underwent PTCA for silent ischemia. A total of 43 lesions were attempted at 63 +/- 94 days after the non-Q-wave AMI. Primary PTCA success was obtained in 30 (91%) patients and no major complications occurred. Angiographic evaluation was performed either for symptoms or for protocol (7 +/- 1 months after PTCA) in 28 (93%) of the 30 patients with successful PTCA, but 2 patients (7%) who were asymptomatic refused the repeat angiogram. Twenty (71%) had no restenosis and 8 (29%) had restenosis. Of these, 5 patients with restenosis underwent a successful repeat PTCA (6 +/- 1 months after the initial procedure). At the last clinical follow-up (17 +/- 8 months), 2 of the 30 (7%) patients successfully dilated presented with stable angina despite medical treatment, whereas the rest (93%) remained asymptomatic. During the study period no patient died, had an AMI or required coronary artery bypass grafting. Thus, selected patients with ischemia after a non-Q-wave AMI, a "high-risk population," can be effectively treated with PTCA with an initial success rate and angiographic restenosis rate similar to that of the general PTCA population and appear to have sustained symptomatic benefit remaining free of subsequent cardiac events.