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Bioengineered Human Arteries for the Repair of Vascular Injuries
Ernest E Moore1, Michael Curi2, Nicholas Namias3
1Department of Surgery, Ernest E. Moore Shock Trauma Center at Denver Health, University of Colorado, Denver.
JAMA Surgery
|November 20, 2024
Summary
The acellular tissue engineered vessel (ATEV) shows promising results for repairing arterial injuries, offering better patency and limb salvage rates compared to synthetic grafts. This bioengineered graft is a viable alternative when traditional methods are not feasible.
Area of Science:
- Biomedical Engineering
- Vascular Surgery
- Regenerative Medicine
Background:
- Vascular injuries necessitate prompt repair to prevent limb loss and mortality.
- Current revascularization methods include autologous veins and synthetic grafts.
- Limitations exist for autologous vein harvesting and synthetic graft use in certain patients.
Purpose of the Study:
- To assess the efficacy and safety of the acellular tissue engineered vessel (ATEV) in arterial injury repair.
- To compare ATEV performance against established synthetic graft benchmarks.
Main Methods:
- Two clinical trials (one prospective civilian, one retrospective military) evaluated ATEV in patients with vascular injury.
- Eligibility criteria included lack of autologous vein and risk factors for infection.
- Primary endpoint was 30-day primary patency; secondary endpoints included limb salvage, infection, and survival.
Main Results:
- At 30 days, ATEV demonstrated high primary patency rates (84.3% and 93.8% in the two studies).
- Limb salvage rates were favorable (9.8% and 0% amputation).
- ATEV showed lower infection rates (2.0% and 0%) compared to synthetic graft benchmarks (8.4%).
Conclusions:
- The acellular tissue engineered vessel (ATEV) shows significant potential as an alternative for arterial repair.
- ATEV offers improved outcomes in patency, limb salvage, and infection resistance compared to synthetic grafts.
- These findings support ATEV's clinical relevance in both civilian and military trauma settings.
