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Absorbable polydioxanone suture for venous anastomoses: experimental studies using venography and transluminal
G Torsello1, A Schwartz, A Aulich
1Department of Vascular Surgery, University of Düsseldorf, West Germany.
European Journal of Vascular Surgery
|October 1, 1987
Summary
Continuous nonabsorbable sutures negatively impact venous anastomosis outcomes, increasing stenosis. Interrupted sutures, whether absorbable or nonabsorbable, and continuous absorbable sutures show improved results over time.
Area of Science:
- Vascular Surgery
- Surgical Techniques
- Biomaterials
Background:
- Venous anastomoses often yield unsatisfactory results due to stenosis, spasm, and thrombosis.
- Nonabsorbable sutures and continuous techniques may impair vascular anastomosis compliance.
Purpose of the Study:
- To evaluate the impact of suture type and technique on venous anastomosis morphology and patency.
- To compare outcomes of absorbable versus nonabsorbable sutures and interrupted versus continuous techniques.
Main Methods:
- Eighty venous anastomoses were created using polypropylene (nonabsorbable) or polydioxanone (PDS, absorbable) sutures in a randomized experimental model.
- Four groups were established based on suture material (absorbable/nonabsorbable) and technique (interrupted/continuous).
- Morphology was assessed via venography and transluminal angioscopy over a 2-year period.
Main Results:
- All groups initially showed moderate to high-grade stenosis.
- Stenosis incidence significantly decreased after 8 weeks in all groups except the continuous nonabsorbable suture group.
- Intimal swelling was observed postoperatively in all groups; however, groups 2, 3, and 4 showed no significant narrowing after 2 months.
Conclusions:
- Continuous nonabsorbable suture technique is associated with persistent stenosis in venous anastomoses.
- Interrupted suture techniques and continuous absorbable sutures lead to better long-term patency and reduced stenosis.
- Suture choice significantly influences the functional outcome of venous anastomoses.