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Per-operative uncontrollable bleeding at polyester (Dacron) arterial prosthesis implantation
R Guidoin1, A Downs, J L Verhaeghe
1Biomatériaux, Hôspital St-François d'Assise, Université Laval, Québec, Canada.
The International Journal of Artificial Organs
|November 1, 1987
Summary
A knitted polyester graft for aorto-iliac occlusive disease failed to preclot due to lipid infiltration. Researchers recommend using a woven graft if a knitted prosthesis does not seal properly.
Area of Science:
- Vascular surgery
- Biomaterials science
Background:
- Aorto-iliac occlusive disease necessitates vascular reconstruction.
- Knitted polyester grafts are commonly used for bypass procedures.
Observation:
- A patient's knitted aortobifemoral graft failed to achieve hemostasis despite standard pre-clotting.
- The graft exhibited unusual lipid infiltration upon examination.
Findings:
- The knitted graft's porosity allowed blood leakage under normal arterial pressure.
- Lipid infiltration compromised the graft's integrity and impermeability.
Implications:
- Standard pre-clotting may be insufficient for certain knitted grafts.
- Alternative graft materials, such as woven prostheses, should be considered in cases of pre-clotting failure.
- Further research into graft material biocompatibility and porosity is warranted.