Evaluating new devices. Acute (in-hospital) results from the New Approaches to Coronary Intervention Registry.
Key result
Treatment with investigational coronary devices (atherectomy, stents, lasers) achieved procedural success in 90.8% of patients, with a 4.0% rate of major complications.
Population
2,835 patients undergoing treatment with investigational coronary interventional devices across 36…
Design
Cohort
Follow-up
In-hospital (median length of stay 4 days)
Authors
Discussion
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Implication
Supports device feasibility in selected patients; leaves open randomized comparisons due to baseline differences.
Study Design
Type
Observational (n=2,835)
Multicenter
Yes
Structured PICO
P
Population
2,835 patients with 3,201 coronary lesions treated with investigational interventional devices across 36 centers, evaluated for acute in-hospital outcomes.
E
Exposure
Investigational coronary devices including directional atherectomy, transluminal extraction atherectomy, rotational atherectomy, Palmaz-Schatz stent, Gianturco-Roubin stent, and excimer lasers (Advanced Interventional Systems or Spectranetics), often with adjunctive angioplasty.
O
Outcome
Device success (stenosis improvement by ≥ 20% and residual stenosis < 50% after new device use) and procedural success (lesion success in all new device-treated lesions without a major complication).composite
The NACI registry demonstrates high acute procedural success (90.8%) with new coronary interventional devices when used with adjunctive angioplasty, though baseline differences preclude direct device comparisons.
Limitations
- Substantial interdevice differences in baseline patient and lesion characteristics prevent simple head-to-head comparisons without careful matching.
Cite This Study
Baim et al. (1994) conducted an observational in Coronary artery disease requiring intervention (n=2,835). Investigational coronary devices (atherectomy, stents, excimer lasers) was evaluated on Procedural success (lesion success in all new device-treated lesions without a major complication). Treatment with investigational coronary devices (atherectomy, stents, lasers) achieved procedural success in 90.8% of patients, with a 4.0% rate of major complications.