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Valiant NAVION Stent Graft System Application: First Asian Case Series Analysis
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  • Chi Ying Simon Chow,
  • Yan Kit Ho,
  • Takuya Fujikawa,
  • Kevin Lim,
  • Cheuk Man Chu,
  • Chun Ho Simon Yu,
  • Mohamad Bashir,
  • Hung Leung Randolph Wong
Chi Ying Simon Chow
Prince of Wales Hospital

Corresponding Author:[email protected]

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Yan Kit Ho
Prince of Wales Hospital
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Takuya Fujikawa
Prince of Wales Hospital
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Kevin Lim
Prince of Wales Hospital
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Cheuk Man Chu
Prince of Wales Hospital
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Chun Ho Simon Yu
Prince of Wales Hospital
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Mohamad Bashir
Royal Blackburn Teaching Hospital
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Hung Leung Randolph Wong
Prince of Wales Hospital
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Abstract

Background and aim of the study
The Valiant NavionTM stent graft system is a third-generation low profile thoracic endograft designed for thoracic endovascular aortic repair. In this population analysis, we report on the first Asian all-comers experience and outcomes who underwent thoracic endovascular aortic repair with the use of this new stent graft system.
Methods
Between May 2019 and October 2020, 21 patients with different aortic pathologies were prospectively recruited and retrospectively analyzed. Important clinical and device-related outcomes were evaluated. The endpoints included short-term survival, technical success, access failures, major vascular and clinical complications, endoleaks, and hospital stay.
Results
The commonest indication of stenting was penetrating aortic ulcers (28.6%) and 6 (28.6%) patients had emergency stenting performed for aortic transection or rupture. 30 days of survival post-procedure was recorded and complete. There were no major vascular complications. Deployment accuracy was 100%, and the technical success rate was 94.7% (18/19) with 1 patient having a type 2 endoleak on follow-up imaging. No neurological complications were noted. The mean operative time was 95 +/- 73.6 mins and the mean fluoroscopy time was 16.2 +/- 10.8 mins. Mean hospital stay for elective zone 2, 3 and 4 stenting was 5.3 +/- 3.8 days, and only 1 patient post zone 1 TEVAR required a brief (0.5 days) ICU stay. All procedures were performed via the percutaneous transfemoral route with 100% success in percutaneous closure.
Conclusion
This first reported Asian case series demonstrated versatility, safety, and efficacy of the Valiant NavionTM stent in Asian patients with different aortic pathologies
02 Dec 2020Submitted to Journal of Cardiac Surgery
03 Dec 2020Submission Checks Completed
03 Dec 2020Assigned to Editor
03 Dec 2020Reviewer(s) Assigned
17 Dec 2020Review(s) Completed, Editorial Evaluation Pending
17 Dec 2020Editorial Decision: Revise Minor
18 Dec 20201st Revision Received
23 Dec 2020Submission Checks Completed
23 Dec 2020Assigned to Editor
24 Dec 2020Reviewer(s) Assigned
24 Dec 2020Review(s) Completed, Editorial Evaluation Pending
24 Dec 2020Editorial Decision: Accept