importance of arterial pump compression & decompression rates
DESCRIPTION
This short presentation is a shoot-off of "Preventing Amputation with an Arterial Compression Pump." It goes into greater detail as to why rapid cuff inflation and deflation MUST occur in under 0.5 seconds in order to promote successful therapy. As always, the number one goal is maximizing blood flow to the lower extremities so that diseased tissues can heal faster with the help of nutrient- and oxygen-rich blood. "Movement is the essence of life." - Bernd HeinrichTRANSCRIPT
- 1. Why they must be rapid for successful non- invasive PAD treatment
2. An effective arterial pump is not modeled after lymphedema pumps or DVT prophylaxes. This is because an effective arterial pump is designed specifically to treat arterial disease not venous or lymphatic diseases. The ArtAssist device uses a uniquely optimized intermittent pneumatic compression technique to maximize blood flow to the legs and feet. 3. Patient in a sitting position Sequential foot & calf compression Cuff inflation pressure of 120 mmHg Cuff inflation & deflation rates well under 0.5 seconds Effective arterial pumps will meet each of these four standards without compromise. 4. Rapid inflation & deflation rates are absolutely essential to successful PAD treatment with an arterial pump. It all has to do with a phenomenon called arteriogenesis, the growth of small collateral bypass arteries around a blockage after continued compression therapy. Before arterial pump therapy After 4 months of arterial pump therapy 5. When an arterial pump rapidly compresses your leg, all tissues experience shear stress. The first function of this quick compression sequence is to push almost all venous blood back to the heart. There, it is recycled and loaded with fresh nutrients and oxygen for the deprived tissues in your legs. If the compression is not under 0.5 seconds, the venous blood dawdles toward the heart so slowly that some of it might not even make it. 6. Rapid compression empties veins Recycled into oxygen- & nutrient-rich blood Rapid Cuff Inflation = Shear Stress 7. When the cuffs rapidly deflate under 0.5 seconds, they let an important flood of oxygen- and nutrient- rich blood through to your entire leg (slower deflation would let a weaker stream through). When blood rushes past, cells that line the arteries (endothelium) naturally produce a chemical called Nitric Oxide (vasodilator), a muscle relaxant, and other substances. This muscle relaxant temporarily opens the small collateral vessels. The arterial pump compresses your leg 3 times per minute so that the small collateral vessels are constantly opened. 8. Rapid decompression Endothe lial Cell Nitric Oxide Nitric Oxide Nitric Oxide Collateral Artery Circulation This process happens ~180 times per hour! 9. Results become long-term Angiographic Evidence, Dr. Paul van Bemmelen, Annals of Vascular Surgery 2003 10. Optimized to treat PAD 25+ published clinical studies 86% - 94% limb salvage rates in studies performed at multiple centers The only device (888) 4 LEG FLO ArtAssist.com 11. Developer, manufacturer & distributor of ArtAssistThe Arterial Assist Device San Marcos, California Prescribing Recommended regimen: 1 hour T.I.D. for 90 days Provide patients name and phone number Fax to (760) 744-4401 or email to [email protected] Let ACI Medical handle the rest Delivery, training & full customer support