Long-term care teams frequently encounter venous leg ulcers (VLUs) and arterial ulcers: two distinct conditions with differing etiologies, treatment protocols, and risks. VLUs, driven by chronic venous hypertension, account for up to 80% of lower-extremity ulcerations and affect ~1% of the U.S. population. They often develop near the ankle, have slow healing rates, and carry a high risk of recurrence.
Arterial ulcers arise from inadequate arterial perfusion, most commonly due to peripheral arterial disease (PAD), and can deteriorate rapidly without restoration of blood flow. For quick reference, the table compares venous and arterial ulcers across key clinical features.
| Attribute | Venous Leg Ulcer (VLU) | Arterial Ulcer |
| Location — Where the Ulcer Appears | Around inner ankle/lower leg (gaiter area) | Toes, feet, outer ankle; pressure points |
| Ulcer Appearance — What It Looks Like | Shallow, irregular edges; red base ± slough | Deep, punched-out, pale or black base; clear edges |
| Surrounding Skin (Periwound) | Brown staining, thickened skin, swelling common | Cool, pale or bluish skin; shiny, hairless; poor capillary refill |
| Pain Pattern | Mild to aching; often better when elevated | Severe; worse when elevated, relieved when dangling |
| Drainage (Exudate) | Moderate to heavy exudate (wound often appears wet) | Minimal; usually dry or with scab/eschar |
| Circulation Signs (Perfusion) | Foot pulses present; warm skin; normal refill | Pulses weak/absent; cold skin; delayed refill |
| Essential Diagnostic Checks | ABI to assess blood flow; vein ultrasound | ABI (often low); arterial imaging for blockages |
| Core Treatment Approach | Compression, wound care, leg elevation; address veins | Restore circulation (e.g., angioplasty); protect wound; manage risk factors |
| Compression Safety (ABI-guided) | Safe if ABI ≥ 0.8Light compression if 0.5–0.79 (specialist)Avoid if ABI < 0.5 or > 1.3 | Unsafe if ABI < 0.5Only with specialist advice if mixed ulcer |
| Healing Outlook | Good with compression; recurrence common if not maintained | Poor without revascularization; may lead to complications if untreated |
Evidence-based management of venous ulcers
Compression therapy is the cornerstone of VLU care. Graduated compression reduces venous hypertension, promotes venous return, and improves healing; leg elevation about 30 minutes, three to four times daily, further reduces edema. Compression can be delivered via multilayer bandaging or compression stockings, chosen to fit resident factors and staff workflow.
Pharmacologic adjuncts:
- Pentoxifylline, when added to compression, improves healing rates. Benefits are also seen (to a lesser extent) when compression cannot be used.
- Aspirin as an adjunct has insufficient and inconsistent evidence. Systematic reviews note small trials with mixed results and conclude that benefits and harms remain uncertain.
Addressing superficial venous reflux: In large, chronic, or recurrent VLUs, guidelines support interventions to treat superficial venous reflux (e.g., endovenous ablation) in addition to compression to improve healing and reduce recurrence.
Arterial ulcers: Timely identification and intervention
In contrast to VLUs, standard/high-pressure compression is contraindicated in severe arterial disease. Consensus statements specify that ABPI < 0.6 is a contraindication to compression. Initial management focuses on vascular assessment (pedal pulses, ABPI) and, when indicated, more advanced testing.
For mixed disease (suspected venous disease with mild-to-moderate arterial involvement), guidance varies. Some guidelines allow modified, lower-pressure compression in the ABPI 0.5–0.8 range, but emphasize specialist oversight and careful monitoring. Overall, there is no global consensus for this ABPI band.
For arterial ulcers and chronic limb-threatening ischemia (CLTI), revascularization is the primary therapeutic goal to minimize tissue loss, relieve pain, and enable wound healing. Compression should be avoided in severe ischemia.
Leveraging mobile, AI-enhanced wound care
In long-term care, consistent, objective measurement can be challenging. AI-enhanced imaging tools can provide reliable, repeatable measurements of wound size/area and tissue composition, improving documentation and trend tracking over time. These technologies do not replace vascular assessment for determining etiology but can standardize serial measurements, support care planning, and streamline communication among teams.
Conclusion
Effective management of venous and arterial ulcers in long-term care starts with accurate diagnosis and stratification, followed by evidence-based therapies and ongoing monitoring.
- For VLUs: Prioritize compression and elevation, consider pentoxifylline as an adjunct when appropriate, and address superficial venous reflux to reduce recurrence.
- For arterial ulcers/CLTI: Prompt vascular evaluation and revascularization are central. Avoid compression where ischemia is severe.
- Across etiologies, structured assessment and objective measurement improve consistency and documentation in busy SNF/ALF environments.
Learn more about how we support Skilled Nursing and Assisted Living communities across Greater Sacramento with AI-supported wound care and predictive monitoring.
References
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- Jull, A. B., Arroll, B., Parag, V., & Waters, J. (2012). Pentoxifylline for treating venous leg ulcers. Cochrane Database of Systematic Reviews, 2012(12), CD001733. https://pubmed.ncbi.nlm.nih.gov/23235582/
- Rabe, E., Partsch, H., Hafner, J., Lattimer, C., Mosti, G., Neumann, M., Urbanek, T., & Huebner, M. (2020). Risks and contraindications of medical compression treatment: A critical reappraisal. Phlebolymphology, 27(1), 39–50. https://pmc.ncbi.nlm.nih.gov/articles/PMC7383414/
- de Oliveira Carvalho, P. E., Maglione, M. A., Bannuru, R. R., Lazaro, R. G., Naci, H., Ennis, W. J., Saldanha, I. J., & Dahabreh, I. J. (2016). Oral aspirin for treating venous leg ulcers. Cochrane Database of Systematic Reviews, 2016(2), CD009432. https://www.cochrane.org/CD009432/WOUNDS_oral-aspirin-venous-leg-ulcers
- American College of Cardiology/American Heart Association. (2024, May 9). Multisociety guideline for lower extremity peripheral artery disease: Key takeaways. American College of Cardiology. https://www.acc.org/Latest-in-Cardiology/ten-points-to-remember/2024/05/09/15/00/2024-guideline-for-lower-extremity-pad
- Weller, C. D., Evans, S. M., Aldons, P. M., McNeil, J., & McLachlan, C. S. (2018). ABPI reporting and compression recommendations in global clinical practice guidelines on venous leg ulcer management: A scoping review. International Wound Journal, 15(5), 696–701.https://pubmed.ncbi.nlm.nih.gov/30485668/
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- Ramachandram, D., Wong, J. S., Abdul Hadi, M. S., Nasir, N. A. M., Chuah, J. H., Mohd Ali, M. A., Goyal, M., & Yap, M. H. (2022). Fully automated wound tissue segmentation using deep learning. Advances in Wound Care, 11(5), 237–252. https://pmc.ncbi.nlm.nih.gov/articles/PMC9077502/
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