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Clinical and angiographic effects of chronic calcium channel blocker therapy continued beyond first postoperative
M Gaudino1, F Glieca, N Luciani
1Department of Cardiac Surgery, Catholic University, Rome, Italy. mgaudino@tiscalinet.it
Continuing chronic calcium channel blocker therapy (CCCBT) after one year does not improve outcomes for patients with radial artery (RA) grafts. This study found no significant differences in clinical, scintigraphic, or angiographic results between groups who continued or suspended CCCBT.
Area of Science:
- Cardiovascular Surgery
- Interventional Cardiology
- Pharmacology
Background:
- Radial artery grafts are used for myocardial revascularization.
- The long-term effects of continuing calcium channel blocker therapy post-surgery are not well-established.
Purpose of the Study:
- To determine the clinical and angiographic effects of continuing chronic calcium channel blocker therapy (CCCBT) beyond the first postoperative year in patients who received radial artery (RA) grafts.
Main Methods:
- 120 patients with RA grafts and no ischemia/malfunction at 1 year were randomized to continue or suspend CCCBT (diltiazem).
- After 5 years, clinical and scintigraphic assessments were performed.
- Angiographic re-evaluation was conducted on a subset of patients.
Main Results:
- No significant differences were observed between the CCCBT continuation and suspension groups.
- Clinical outcomes, scintigraphic results, and radial artery graft patency remained comparable.
Conclusions:
- Continuation of CCCBT after the first postoperative year does not impact radial artery graft patency.
- Long-term CCCBT does not alter clinical or scintigraphic results in patients with radial artery grafts.
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