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Directional coronary atherectomy and progressive coronary dilatation: a comparative analysis of acute outcome
B D Jackson1, P S Fail, A Bassi
1Episcopal Heart Institute, Episcopal Hospital, Philadelphia, PA 19125, USA.
Insights
Progressive coronary dilatation (PCD) shows a higher success rate than directional atherectomy (DCA) for coronary intervention, with similar complication rates. PCD is a viable alternative, especially when DCA is not feasible.
Area of Science:
- Cardiovascular Interventions
- Interventional Cardiology
- Vascular Surgery
Background:
- Directional atherectomy (DCA) and progressive coronary dilatation (PCD) are interventional techniques for coronary artery disease.
- Evaluating comparative outcomes of these techniques is crucial for clinical decision-making.
Purpose of the Study:
- To compare the acute results and in-hospital complications of DCA versus PCD.
- To assess the efficacy of PCD as an alternative to DCA.
Main Methods:
- Retrospective analysis of matched patient groups undergoing DCA or PCD.
- Comparison of angiographic success rates, pre- and postprocedural stenosis, and complications.
- Patient matching based on age, sex, vessel characteristics, and lesion morphology.
Main Results:
- Angiographic success was higher with PCD (97%) compared to DCA (85%).
- Mean postprocedural stenosis was significantly lower with DCA (11.2%) than PCD (19.7%).
- No statistically significant differences in complications (death, myocardial infarction, emergency bypass surgery) were observed between groups.
Conclusions:
- PCD is a viable alternative for coronary intervention in patients with "atherectomy anatomy", demonstrating a higher success rate.
- PCD can be successfully employed when DCA fails or is technically not feasible.
- Both DCA and PCD showed comparable safety profiles regarding acute in-hospital complications.
Abstract:
To evaluate the acute results and in-hospital complications of directional atherectomy (DCA) as compared to progressive coronary dilatation (PCD), we retrospectively analyzed the acute outcome of DCA with PCD in age-, sex-, vessel-, and lesion morphology-matched groups of patients during the same time span. There was a total of 73 matched patients (77 lesions) in each group. Angiographic success on the basis of intent to treat was 85% in the DCA cohort versus 97%. The preprocedural mean diameter stenosis was similar between the two groups (87% vs 84%; p = n.s.). The mean postprocedural stenosis was significantly lower with DCA than with PCD (11.2% vs 19.7%; p < or = 0.05). Complications including death, myocardial infarction, and need for emergency bypass surgery were not statistically different in either group. In conclusion, PCD offers an alternative method of coronary intervention in patients with "atherectomy anatomy" with a significantly higher success rate. It can also be used successfully when DCA fails or cannot be performed because of technical factors.
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