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Official Journal of the Italian Society of Angiology and Vascular Pathology
Indexed/Abstracted in: EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 0,752
Online ISSN 1827-1618
Briguori C. 1, Virmani R. 2, Kolodgie F. 2, Byrne R. A. 3, Steigerwald K. 3, Orlowski M. 4, Joner M. 3
1 Laboratory of Interventional Cardiology and Department of Cardiology, Clinica Mediterranea, Naples, Italy;
2 CVPath Institute, Inc., Gaithersburg, MD, USA;
3 German Heart Center and Medical Clinic 1, Klinikum rechts der Isar, Technical University, Munich, Germany;
4 Cardionovum GmbH, Bonn, Germany
AIM:Drug-coated balloon (DCB) technology has emerged as a promising therapy particularly in the treatment of coronary in-stent restenosis. Although a variety of devices are available for clinical use, clinical outcomes have been variable and scope for significant improvement exists.
METHODS: In a preclinical study, a total of 10 juvenile healthy farm pigs underwent catheter-based DCB deployment in coronary arteries with angiographic and pathological follow-up at 7 or 28 days.
Animals were randomly allocated to the PRIMUS or Dior® DCB (N.=10 per group) and evaluated by histopathology and morphometric analysis. In a first-in-man clinical study a total of 19 consecutive patients presenting with restenosis within drug-eluting stents were treated with the PRIMUS DCB. Clinical follow-up was performed out to 6 months.
RESULTS:Neointimal thickness was similar between the PRIMUS and Dior® DCB groups, while fibrin deposition and inflammation were more sustained in the PRIMUS group at 28 days.
In 19 consecutive patients presenting with in-stent restenosis of drug-eluting stents, treatment with the PRIMUS DCB catheter resulted in high procedural efficacy. There were no adverse clinical events observed out to 6 months.
CONCLUSION:The PRIMUS DCB demonstrates high preclinical safety and excellent acute performance and safety. Further studies are needed to delineate the relative merits of this novel DCB compared to other devices.