Key result
Bayesian modeling showed previous and intermediate-wire failure reduced antegrade crossing success from 50% to 6.1%, while IVUS guidance favored efficiency over retrograde (MD 3.0%, 95% CrI -5.6-11.4%).
Why the study?
Complex PCI for CTO is often prolonged and requires timely strategy selection, yet existing preprocedural scoring systems offer limited guidance regarding intraprocedural dynamics. This study aimed to develop a framework that updates success probabilities to support optimal strategy transitions during the procedure.
Does a real-time Bayesian decision support framework incorporating preprocedural complexity scores and intraprocedural wire failure optimize crossing strategy transitions and improve procedural efficiency in patients undergoing chronic total occlusion percutaneous coronary intervention?
Observational (n=204)
Single-blind
No
Does a real-time Bayesian decision support framework incorporating preprocedural complexity scores and intraprocedural wire failure optimize crossing strategy transitions and improve procedural efficiency in patients undergoing chronic total occlusion percutaneous coronary intervention?
A real-time Bayesian model integrating preprocedural complexity scores and intraprocedural wire failure dynamically updates CTO PCI success probabilities, identifying when antegrade wire escalation falls to a 6.1% success likelihood and supporting timely transition to advanced IVUS-guided or retrograde strategies.
May aid intraprocedural strategy transitions in CTO PCI; extends preprocedural scores but leaves open prospective validation.
Background: Complex percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) is often prolonged, underscoring the need for timely strategy selection. Although several preprocedural scoring systems exist, they offer limited guidance regarding intraprocedural dynamics. This study aimed to develop a framework that updates success probabilities to support optimal strategy transitions during the procedure.
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Kashiyama et al. (2026) conducted an observational in Chronic total occlusion undergoing percutaneous coronary intervention (n=204). Bayesian real-time decision support model and IVUS-guided wiring vs. Antegrade wire escalation and retrograde approaches was evaluated on Time-constrained lesion crossing success (<15 min using antegrade wire escalation or <60 min using advanced IVUS-guided or retrograde approaches) (MD 3.0%, 95% CI -5.6 to 11.4). Bayesian modeling showed previous and intermediate-wire failure reduced antegrade crossing success from 50% to 6.1%, while IVUS guidance favored efficiency over retrograde (MD 3.0%, 95% CrI -5.6-11.4%).
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