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The Coronary Intravascular Lithotripsy System.

ABSTRACT: Calcified lesions often mean percutaneous intervention results are suboptimal and increase the risk of procedural complications and future adverse events. Available plaque-modifying devices rely on tissue compression or debulking, with the intention of fracturing calcium and facilitating optimal stent deployment. In contrast, coronary intravascular lithotripsy delivers unfocused, circumferential, pulsatile mechanical energy to safely disrupt the calcium within the target lesion. The present review summarises the evidence available so far on this therapy and includes a practical description of the components and function of the Shockwave Intravascular Lithotripsy System (Shockwave Medical).

SUBMITTER: Forero MNT

PROVIDER: S-EPMC6918618 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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The Coronary Intravascular Lithotripsy System.

Forero Maria Natalia Tovar MNT Daemen Joost J

Interventional cardiology (London, England) 20191118 3

Calcified lesions often mean percutaneous intervention results are suboptimal and increase the risk of procedural complications and future adverse events. Available plaque-modifying devices rely on tissue compression or debulking, with the intention of fracturing calcium and facilitating optimal stent deployment. In contrast, coronary intravascular lithotripsy delivers unfocused, circumferential, pulsatile mechanical energy to safely disrupt the calcium within the target lesion. The present revi ...[more]

PMID: 31867065

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Coronary intravascular lithotripsy for coronary artery calcifications- systematic review of cases.

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Project description:Calcified coronary lesions are notorious for posing technical difficulty during angioplasty. Fortunately, more devices are available to tackle coronary calcifications. However, there remain difficult cases whereby a single modality is insufficient. Here we report the feasibility and success of a case, using Novo combination of Shockwave Lithotripsy after Orbital Atherectomy. (Level of Difficulty: Intermediate.).

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Clinical and angiographic success and safety comparison of coronary intravascular lithotripsy: An updated meta-analysis.

Project description:BackgroundIntravascular lithotripsy (IVL) can be used to assist stent deployment in severe coronary artery calcifications (CAC).MethodsStudies employing IVL for CAC lesions were included. The primary outcomes included clinical and angiographic success. The secondary outcomes, including lumen gain, maximum calcium thickness, and calcium angle at the final angiography site, minimal lumen area site, and minimal stent area site, were analyzed by the random-effects model to calculate the pooled standardized mean difference. Tertiary outcomes included safety event ratios.ResultsSeven studies (760 patients) were included. The primary outcomes: pooled clinical and angiographic success event ratio parentage of IVL was 94.4% and 94.8%, respectively. On a random effect model for standard inverse variance for secondary outcomes showed: minimal lumen diameter increase with IVL was 4.68 mm (p-value < 0.0001, 95% CI 1.69-5.32); diameter decrease in the stenotic area after IVL session was -5.23 mm (95 CI -22.6-12.8). At the minimal lumen area (MLA) and final minimal stent area (MSA) sites, mean lumen area gain was 1.42 mm2 (95% CI 1.06-1.63; p < 0.00001) and 1.34 mm2 (95% CI 0.71-1.43; p < 0.00001), respectively. IVL reduced calcium thickness at the MLA site (SMD -0.22; 95% CI -0.40-0.04; P = 0.02); calcium angle was not affected at the MLA site. The tertiary outcomes: most common complication was major adverse cardiovascular events (n = 48/669), and least common complication was abrupt closure of the vessel (n = 1/669).ConclusionsEvidence suggests that IVL safely and effectively facilitates stent deployment with high angiographic and clinical success rates in treating severely calcified coronary lesions.

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