TCT-98 Calcium Modification Strategies in Dissection and Re-Entry Versus Wiring Techniques in Chronic Total Occlusion Percutaneous Coronary Intervention

Document Type

Conference Proceeding

Publication Date

10-24-2023

Publication Title

J Am Coll Cardiol

Keywords

calcium, adult, atherectomy, balloon, chronic total occlusion, conference abstract, controlled study, dissection, female, human, incidence, laser, lithotripsy, major adverse cardiac event, major clinical study, male, multicenter study, percutaneous coronary intervention, perforation, risk assessment, rotational atherectomy, surgery

Abstract

Background: The use of calcium modification strategies in dissection and re-entry compared with wiring techniques in chronic total occlusion (CTO) percutaneous coronary intervention (PCI) has received limited study. Methods: We analyzed the procedural outcomes of 1,241 CTO PCIs that required the use of 1 or more calcium modification strategies at 42 centers from 2012 to 2023. Results: A calcium modification strategy was used as part of a dissection and re-entry strategy in 23% and as part of wiring technique in 77%. The most common calcium modification strategy in the dissection and re-entry group was scoring balloon (29.5%) and rotational atherectomy (29.5%), followed by laser atherectomy (20.7%) and intravascular lithotripsy (IVL) (18.3%). In the wiring group, rotational atherectomy (38.3%) was the most frequently used calcium modification therapy, followed by laser atherectomy (25.8%), IVL (17.8%), and scoring balloon (15.3%). Technical success was overall similar (95.1% vs 96.9%; P = 0.155) in the 2 groups, but was higher when IVL (100.0% vs 96.2%; P = 0.011) or scoring balloon (98.6% vs 94.0%; P = 0.049) was used in wiring cases. The incidence of major adverse cardiovascular events (MACE) was higher in the dissection and re-entry group (5.3% vs 2.4%; P = 0.014), especially among cases where scoring balloon (8.4% vs 2.1%; P = 0.023) or rotational atherectomy (9.5% vs 3.6%; P = 0.019) was used. [Formula presented] Conclusion: The use of calcium modification strategies in dissection and re-entry was associated with similar technical success but higher incidence of MACE and perforation compared with wiring techniques. Categories: CORONARY: Complex and Higher Risk Procedures for Indicated Patients (CHIP)

Volume

82

Issue

17 Suppl

First Page

B38-B39

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