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An Ex Vivo Tissue Culture Model for Fibrovascular Complications in Proliferative Diabetic Retinopathy
Published on: January 25, 2019
The diabetic patient has a higher benefit from infrapopliteal revascularization than the non-diabetic patient: a
Alexander Oberhuber1, Brigitte Benecke, Karl-Heinz Orend
1Department of Vascular Surgery, University of Düsseldorf, Moorenstraße 5, 40225 Düsseldorf, Germany. alexander.oberhuber@med.uni-duesseldorf.de
Insights
Crural arterial revascularization effectively preserves limbs and maintains graft patency, especially in diabetic patients. Vein grafts show superior long-term results compared to prosthetic options for peripheral arterial occlusive disease.
Area of Science:
- Vascular Surgery
- Reconstructive Surgery
- Peripheral Arterial Disease
Background:
- Peripheral arterial occlusive disease (PAOD) significantly impacts limb viability.
- Crural arterial revascularization is a critical intervention for limb salvage in PAOD patients.
Purpose of the Study:
- To evaluate limb salvage and graft patency rates following crural arterial revascularization.
- To compare the outcomes associated with different graft materials.
- To assess the influence of comorbidities on revascularization success.
Main Methods:
- Retrospective analysis of 157 patients undergoing 170 crural artery bypasses over a 10-year period (1996-2006).
- Evaluation of secondary patency and limb salvage rates based on graft material (vein, composite, prosthetic with/without vein cuff).
Main Results:
- Five-year secondary patency rates varied significantly by graft type: vein (71.5%), prosthetic with cuff (52.6%), composite (44.3%), and prosthetic without cuff (42%).
- Five-year limb salvage rates were 79.5% (vein), 77.9% (prosthetic with cuff), 70.1% (prosthetic without cuff), and 61.6% (composite).
- Diabetic patients demonstrated significantly higher cumulative limb salvage rates (78.9%) compared to non-diabetic patients (66.6%).
Conclusions:
- Crural reconstruction is an effective strategy for preventing amputation in patients with peripheral arterial occlusive disease.
- Autologous vein grafts offer superior patency and limb salvage rates compared to prosthetic grafts in crural revascularization.
- Crural revascularization is particularly beneficial for diabetic patients with PAOD.
Objective:
The objective of this article is to evaluate the limb salvage and patency rates after crural arterial revascularization, differences between graft material and co-morbidities.
Patients And Methods:
All patients with crural artery bypasses were analysed retrospectively in a single centre (Department of Vascular Surgery, Thüringen Kliniken Saalfeld, Rudolstadt, Germany) over a 10-year period (1996-2006); 157 patients with 170 consecutive arterial reconstructions could be included.
Results:
Follow-up time was 55 months (6-119). Median age of the 56 women and the 101 men at the time of operation was 70 years (45.6-93.6). The five-year secondary patency rates were 71.5 ± 6.22% (vein), 44.3 ± 10.8% (composite; p = 0.0011), 52.6 ± 13.4% (prosthetic graft with distal vein cuff/patch; p = 0.00953) and 42 ± 12% (prosthetic graft without distal vein cuff/patch; p = 0.00443). Limb salvage rates after five years were 79.5 ± 5.8%, 61.6 ± 10.3%, 77.9 ± 11.3% and 70.1 ± 14.7%, respectively. Cumulative limb salvage rate was significantly higher in diabetic patients (78.9 ± 4.9%), than in non-diabetic patients (66.6 ± 6.8); p = 0.023.
Conclusion:
Crural reconstruction is a suitable method for peripheral arterial occlusive disease to prevent amputation, particularly in diabetics.
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