Why do ring-shaped pillows harm circulation more than foam cushions?

✓ Accepted answer

Ring-shaped pillows harm circulation more than foam cushions because they create a central void that concentrates pressure on the surrounding tissue, whereas foam distributes weight evenly to maintain blood flow. Many home caregivers mistakenly use donut-shaped supports, but clinical guidance clarifies that these items restrict blood flow differently than recommended supports for bony prominences.

• Central Pressure Void: The hole in a donut pillow forces the limb or body part to rest on the rigid ring material, cutting off circulation at the exact point where support is needed.
• Even Distribution: High-density foam or gel cushions compress slightly to spread pressure across a larger surface area, reducing the risk of ischemia in bony areas like the hips or heels.
• Shear Reduction: Soft, flat supports minimize friction and shear forces when a patient shifts slightly, which are primary causes of tissue breakdown in bedridden individuals.
• Proper Placement: Instead of rings, place soft pillows or foam bolsters between the knees and ankles when the patient lies on their side to keep joints aligned without compressing the skin.
• Heel Elevation: Use foam wedges under the heels to keep them floating above the mattress, ensuring that pressure is fully relieved from the most vulnerable pressure points.

If you notice the skin turning dark purple or black, or if it remains red for more than 30 seconds after being uncovered, this is a sign of deep tissue injury; contact a doctor or wound care specialist immediately to prevent further tissue damage.

admin · 2026-10-19 06:20:23