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The Valiant thoracic endograft.

M Brooks1, I Loftus, R Morgan

  • 1St George's Vascular Institute, London, UK.

The Journal of Cardiovascular Surgery
|June 9, 2006
PubMed
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Thoracic aortic stent grafts offer a less invasive alternative to open surgery for aortic pathologies. Early results show the Medtronic Valiant endograft achieved 93% technical success, demonstrating promise for treating aneurysms and dissections.

Area of Science:

  • Cardiovascular Surgery
  • Medical Devices
  • Vascular Endografts

Background:

  • Conventional open surgery for thoracic aortic pathology involves significant risks, including mortality and morbidity.
  • Endovascular techniques present a less invasive alternative, but require specialized endograft systems for the complex aortic arch and descending aorta.
  • Challenges include graft conformability, flexibility, low profile, accurate deployment, and long-term durability.

Purpose of the Study:

  • To review indications for thoracic aortic stent grafts.
  • To outline the properties of an ideal endograft for the thoracic aorta.
  • To describe the Medtronic Valiant endoprosthesis and Xcelerant Delivery System and present early clinical experience.

Main Methods:

  • Review of current literature on thoracic aortic stent grafts.

Related Experiment Videos

  • Detailed description of the Medtronic Valiant endoprosthesis and Xcelerant Delivery System.
  • Presentation of early clinical outcomes in 28 patients treated with the Valiant system.

    • Main Results:

    • The Medtronic Valiant endoprosthesis with Xcelerant Delivery System is a third-generation device designed for thoracic aortic pathologies.
    • Early experience in 28 patients demonstrated an initial technical success rate of 93%.
    • The system was reported to be easy to position and deploy.

    Conclusions:

    • Endovascular repair using thoracic aortic stent grafts offers a potentially safer alternative to open surgery.
    • The Medtronic Valiant system shows promising early technical success for treating thoracic aortic aneurysms and dissections.
    • Long-term data collection through registries like Virtue is crucial for evaluating the durability and health economics of these devices.