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Rapid progression of peripheral vascular disease after diagnostic angiography
B D Fellmeth1, J J Bookstein, A L Lurie
1Department of Radiology, University of California, San Diego Medical Center 92103.
Insights
Percutaneous transluminal angioplasty complications can arise when diagnostic angiography precedes treatment. Prompt intervention post-angiography or heparin use may prevent stenosis progression to occlusion.
Area of Science:
- Vascular Surgery
- Interventional Radiology
Background:
- Percutaneous transluminal angioplasty (PTA) is a common procedure for treating stenotic peripheral vessels.
- Diagnostic angiography is often performed before PTA to assess lesion severity and plan treatment.
Observation:
- A retrospective review identified seven cases where peripheral arterial lesions progressed from stenosis to total occlusion between diagnostic angiography and attempted PTA.
- These post-angiographic occlusions varied in length (mean 9 cm) and were discovered within hours to months (median 2 days) after the initial diagnostic study.
Findings:
- The progression from stenosis to occlusion was attributed to an aspect of the diagnostic angiographic procedure.
- Treating these occlusions was significantly more complex and carried higher risks compared to angioplasty of the original stenoses.
Implications:
- This complication highlights the need for timely intervention following diagnostic angiography in peripheral vascular disease.
- Strategies such as immediate angioplasty preparation or intra-diagnostic heparin administration may mitigate the risk of lesion occlusion.
Abstract:
The authors retrospectively reviewed records of percutaneous transluminal angioplasties performed at three institutions. Seven stenotic lesions in peripheral vessels were identified that had progressed to total occlusion in the interval between the time that diagnostic run-off angiography and attempted angioplasty were performed. The post-angiographic occlusions were 3-16 cm long (mean, 9 cm), and the interval between diagnostic angiography and discovery of the occlusions ranged from 1 hour to 91 days (median, 2 days). Treatment of the occlusions was riskier and more difficult than simple angioplasty of the original stenoses. The authors conclude that some aspect of the angiographic procedure probably precipitated the transition from stenosis to occlusion. This complication can be prevented by preparation for angioplasty immediately after diagnostic run-off angiography or perhaps by use of heparin during the diagnostic study.