Both sequential compression devices for the legs and compression stockings are used to prevent deep vein thrombosis and improve circulation in the legs. However, there are several reasons why SCDs are preferred over traditional compression stockings in some cases. This article discusses how sequential compression devices work and why they might be more effective than compression stockings.
Understanding Sequential Compression Devices
Sequential compression devices are inflatable sleeves that fit around the legs and are attached to an air pump. They work by inflating and deflating the cuffs in a specific sequence, starting from the ankle and moving up towards the thigh. This "milking" action mimics natural muscle contractions that occur during physical activity, promoting venous return and improving blood flow back to the heart.
Key Features of SCDs
Intermittent Pneumatic Compression: SCDs apply pressure in a controlled manner, though this is variable and can be adjusted according to the needs of the patient. In comparison to static pressure from compression stockings, intermittent pressure tends to be more efficient at facilitating blood flow.
Sequential Inflation: Sequential inflations in the case of SCDs cause evenly spread compression that helps push blood along the veins. For instance, patients may not have the liberty of moving their legs every time.
Customisable Settings: Most SCDs have the ability to set pressure levels and inflation cycles. This way, healthcare providers can adjust the treatment to suit the needs of each patient.
Benefits of Sequential Compression Devices Over Compression Stockings
1. Improved Blood Circulation
SCDs have been proven to produce greater peak venous velocities than compression stockings. The "milking" action of sequential compression is said to cause more effective emptying of deep veins in the legs, which makes it more effective in reducing the risk of blood clots compared to static compression alone.
2. Higher Efficacy in High-Risk Patients
For bedridden and postoperative patients, SCDs offer maximum protection against DVT. For immobile patients, especially, the active, dynamic features of SCDs are most helpful since they simulate circulatory exercise without the necessity for patient activity.
3. Comfort and Tolerance
Many patients find SCDs more comfortable than traditional compression stockings, especially for prolonged use. The adjustable nature of SCDs allows for a better fit, reducing discomfort associated with tightness or constriction that can occur with elastic stockings.
4. Ease of Use
Application and removal of SCDs can be relatively easier than of compression stockings, which require much effort on one's part, especially for those patients with limited mobility or dexterity. This makes application easier and, hence, a convenient option in the hospital setting if quick application is required.
5. Continuous Monitoring
The advanced systems of SCDs allow healthcare providers to monitor pressure levels for effective application and treatment continuously. This would result in enhanced safety for patients and treatment outcomes.
Conclusion
While both sequential compression devices for legs and compression stockings are indispensable in the prevention of DVT and for improving circulation, SCDs have specific benefits that make them particularly useful in high-risk patients or those with decreased mobility. It is their ability to give dynamic, variable pressure with simplicity of use, as well as increasing the effectiveness of blood flow, that makes SCDs superior to many clinical applications. For those concerned with DVT or those facing surgery, bringing up the value of sequential compression devices during consultation with the healthcare provider is likely to contribute to a healthier outcome.
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