How Is Limb Artery Disease Treated?
Limb artery disease (narrowing-blockage of the leg arteries, also called “peripheral arterial disease” in medicine) is an important condition that we frequently encounter in our clinic and that in fact reflects not only the leg but the vascular health of the whole body. Reduced blood flow to the leg can create problems across a wide spectrum, from pain while walking to tissue loss in advanced cases. I will address topics such as the causes, symptoms and stages of limb artery disease, the methods we use for diagnosis and the ways of preventing the disease in separate articles, again based on scientific evidence and in an understandable way. In this article, I focus directly on the crucial part of the subject: the treatment options.
Which Treatment for Whom? The Stage of the Disease Determines Our Decision
The most important point we look at when deciding on treatment in limb artery disease is the stage of the disease. We think roughly in terms of two large groups: Intermittent claudication: When the patient walks a specific distance that they already know, they feel cramp-like pain in the calf, thigh or hip; the pain passes when they stop and rest, and starts again when they walk. In this group there is no urgent threat, and we have time on our side. Critical limb ischaemia (CLI): Blood flow has decreased so much that the patient feels pain in the foot even at rest, or non-healing wounds and even gangrene develop on the foot and toes. In this group we act without losing time, because there is a threat of losing the limb (amputation).
In making this distinction we take as reference the current European Society for Vascular Surgery (ESVS) 2024 Guideline on Asymptomatic Lower Limb Peripheral Arterial Disease and Intermittent Claudication, the European Society of Cardiology (ESC) 2024 Guideline on Peripheral Arterial and Aortic Diseases, and the Global Vascular Guidelines specific to critical limb ischaemia.
Treatment Options
Best Medical Treatment and Exercise Programme: This is the first step in almost every patient of ours with intermittent claudication, and it is often sufficient on its own. Blood thinners (antiplatelets), high-dose cholesterol-lowering treatment (statins), blood pressure and blood sugar control and complete cessation of tobacco form the basis of treatment. Alongside this, we always add regular, programmed walking exercise to the treatment; just as small side streets gradually develop around a blocked road and start to carry the traffic, natural “side roads” (collateral vessels) develop in the leg with regular exercise and blood flow improves. With this simple but discipline-requiring approach, walking distance increases markedly in a significant proportion of our patients. Endovascular Treatment (Angioplasty and Stenting): In patients whose complaints restrict daily life despite medical treatment and exercise, or in critical limb ischaemia, we reach the area of narrowing or blockage with the help of a thin catheter introduced from the groin. Here we widen the vessel from the inside with a balloon (angioplasty) and, if necessary, place a stent (a metal mesh) to keep the vessel open. It requires no incision, we usually perform it under local anaesthesia, and we discharge most of our patients the same day or the next day. Depending on the length of the vessel segment, the degree of calcification (calcium build-up) and its location, we may also prefer more advanced technologies such as drug-coated balloons or drug-coated stents; this choice is shaped entirely by the patient’s vascular map. Open Surgery (Bypass): If the blockage is long-segment, very heavily calcified or in a place that is difficult to reach endovascularly, we turn to bypass surgery, the classical method we have applied safely for many years. Here we connect the segment before the blockage to the segment after it, using the patient’s own vein (usually a vein we take from the leg) or a synthetic graft; just like opening an alternative ring road in place of a road closed to traffic. In the right patient, bypass gives very solid and durable long-term results; and we keep this durability in the foreground especially in our young patients with a long life expectancy. Hybrid Approaches: In some complex cases we combine endovascular and open surgical methods in the same session (hybrid intervention); for example, while opening one segment surgically, we treat another segment at the same time with a balloon or stent. This approach allows us to offer the patient exactly as much intervention as needed, all at once, instead of a single larger and riskier operation.
A Race Against Time in Critical Limb Ischaemia
In patients with critical limb ischaemia our goal is clear: to restore blood flow as soon as possible and save the limb. In this patient group the choice between endovascular treatment and bypass is made according to the patient’s general condition, the vascular anatomy and whether their own vein is suitable for a bypass; we apply both methods with the same care and the same speed, because here every day lost increases the risk of tissue loss.
The Process After the Procedure
After endovascular treatment we discharge the great majority of our patients the same day or the next day; apart from mild tenderness at the access site lasting a few days, there is no significant restriction. Recovery after bypass surgery takes somewhat longer, and the length of hospital stay and wound care are planned individually. With both methods we place our patients on a regular follow-up programme after treatment, with regular Doppler ultrasound and pulse examination, because long-term success depends on monitoring that the vessel stays open.
Frequently Asked Questions
Is an intervention (angioplasty-bypass) always necessary in intermittent claudication? No. In a large proportion of our patients the complaints can be brought under control with best medical treatment and regular exercise. We consider intervention in cases that seriously restrict daily life or that progress despite medical treatment.
Which is better, angioplasty or bypass? Neither has absolute superiority over the other; the length and location of the narrowing-blockage, the degree of calcification and the patient’s general condition determine this decision. In short-segment narrowings we usually prefer endovascular treatment, and in long and complex blockages we prefer bypass.
I have a non-healing wound on my foot; is this urgent? Yes. This is an important sign of critical limb ischaemia and needs to be assessed without losing time; delay increases the risk of losing the limb.
Does quitting smoking really make a difference? Absolutely yes. Tobacco is the most important modifiable factor directly affecting the speed of progression of the disease and the risk of the vessel becoming blocked again after an intervention.
In Summary
Treatment in limb artery disease is not a single prescription; it requires a personalised road map based on the stage of the disease, the anatomy of the vessel and the patient’s general state of health. Across this spectrum of options, ranging from best medical treatment and exercise to endovascular intervention and from there to bypass surgery, our aim is always the same: to preserve the leg and the ability to move.
If you have noticed cramp-like pain in your leg while walking, coldness in your foot or a non-healing wound, you can book an appointment for a detailed examination and Doppler ultrasound assessment.
References
- Nordanstig J, Behrendt CA, Baumgartner I, et al. European Society for Vascular Surgery (ESVS) 2024 Clinical Practice Guidelines on the Management of Asymptomatic Lower Limb Peripheral Arterial Disease and Intermittent Claudication. Eur J Vasc Endovasc Surg. 2024;67(1):9-96.
- Aboyans V, Bauersachs R, Mazzolai L, et al. 2024 ESC Guidelines for the Management of Peripheral Arterial and Aortic Diseases. Eur Heart J. 2024;45(36):3538-3700.
- Conte MS, Bradbury AW, Kolh P, et al. Global Vascular Guidelines on the Management of Chronic Limb-Threatening Ischemia. Eur J Vasc Endovasc Surg. 2019;58(1S):S1-S109.
- Norgren L, Hiatt WR, Dormandy JA, et al. Inter-Society Consensus for the Management of Peripheral Arterial Disease (TASC II). J Vasc Surg. 2007;45(1 Suppl):S5-S67.