Vascular imaging and intervention in peripheral arteries in the diabetic patient
J F Dyet1, A A Nicholson, D F Ettles
1Department of Radiology, Hull Royal Infirmary, Kingston upon Hull, UK.
Insights
Diabetic patients face higher risks of aggressive peripheral vascular disease and critical limb ischemia. However, endovascular procedures offer a chance to restore blood flow, potentially saving limbs from amputation.
Area of Science:
- Vascular Surgery
- Diabetology
- Interventional Radiology
Background:
- Diabetic patients have a significantly higher risk (4x) of developing peripheral vascular disease (PVD).
- PVD in diabetics is more aggressive, leading to critical limb ischemia (CLI) in 5x more patients.
- Early diagnosis and intervention improve outcomes, with up to 80% eligible for re-vascularisation.
Purpose of the Study:
- To review the role of diagnostic imaging and endovascular interventions in managing PVD in diabetic patients.
- To highlight the effectiveness of various endovascular techniques in restoring limb perfusion.
Main Methods:
- Review of primary imaging modalities including duplex ultrasound and angiography.
- Discussion of advanced non-invasive imaging like magnetic resonance angiography.
- Overview of endovascular procedures: thrombolysis, percutaneous transluminal angioplasty, and stenting.
Main Results:
- Endovascular procedures play a crucial role in treating vascular stenoses and occlusions in diabetic PVD.
- Thrombolytic agents, angioplasty, and stenting can restore vessel patency and blood flow.
- While outcomes may be less favorable than in the general population, these interventions can prevent amputation and promote ulcer healing.
Conclusions:
- Endovascular re-vascularisation is a vital treatment option for diabetic patients with PVD and CLI.
- Despite some evidence of poorer outcomes, these minimally invasive techniques offer limb salvage and improved quality of life.
- Continued research into optimizing endovascular strategies for diabetic patients is warranted.
Abstract:
Diabetic patients are four times more likely to develop peripheral vascular disease than the general population. This disease is likely to be more aggressive, with five times more patients developing critical limb ischaemia. Early diagnosis and treatment allows up to 80% of these patients to have some form of surgical or endovascular re-vascularisation. The primary imaging modalities to be used should be duplex ultrasound followed by angiography. Magnetic resonance angiography, however, holds out promise for the future as being a good method of non-invasive imaging. Endovascular (interventional radiological) procedures have a major role to play in treatment of vascular stenoses and occlusions. Thrombolytic agents can be used to dissolve thrombus within occluded vessels and so restore patency. Percutaneous transluminal angioplasty is of value in dilating the stenotic lesions within the vessels and so restoring normal blood flow. Endovascular stents may be inserted to ensure longer term patency. There is indirect evidence to suggest that the outcomes of endovascular procedures in the diabetic patient are less good than those in the general population, but nevertheless such procedures may save the diabetic patient from primary amputation and allow healing of ischaemic ulcers.
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