News Release

IPM Medical GroupAnnounces First Local Patient Implants in Study Aimed to Reduce Chronic Pain.

Walnut Creek, Calif. — April 30, 2014—Physicians at IPM Medical Group, the Easy Bay area today announced their first patient implantsas part of a new clinical studyto help reduce chronic pain. Sponsored by St. Jude Medical, the SUNBURST™ (Success Using Neuromodulation with BURST) study willevaluate whether a new spinal cord stimulation (SCS) therapy called BurstStimulation can be more effective in managing chronic pain than traditional stimulation methods.

Recently, Dr.KasraAmirdelfan, Spine & Pain MedicineInterventionalistat IPM Medical Group, implanted three local patients suffering from chronic intractable pain as part of the SUNBURST study

  • Male, age 72, from Livermore, California
  • Female, age 70, from Walnut Creek, California
  • Male, age 65, from Walnut Creek, California

“SCS continues to be one of the most effective modalities available, on a long term basis, for the treatment of neuropathic pain. New technologies, including Burst technology, will hopefully provide our patients with additional alternatives for improved pain control,” said Dr. Amirdelfan. “We are proud to be the first facility in the U.S. to activate a patient in the SUNBURST study. Our commitment to research projects, such as this, underscores our professional effort to help all chronic patients in our community with effective and prolonged pain relief, utilizing the latest and safest available technologies.”

The Prodigy™ ChronicPain System with Burst TechnologySt. Jude Medical, Inc.
SCS (also known as neurostimulation) therapy uses an implanted device, similar to a cardiac pacemaker, and thin wires with electrodes to deliver low levels of electrical energy to nerve fibers.These electrical pulses mask or interrupt pain signals as they travel to the brain, reducing painful sensations. Traditional stimulation — known as tonic mode — uses equally spaced electrical pulses to replace pain with a tingling sensation called paresthesia. For some patients, the traditional stimulation sensation can vary in intensity and may become uncomfortable or the stimulationsimply does not effectively relieve their pain.


Burst Stimulation is a form of SCS that delivers intermittent “bursts” of stimulation designed to provide an alternative therapy method for chronic conditions such as back pain. In addition, Burst Stimulation has been demonstrated to minimize paresthesia (tingling sensation) in some patients, which can often fluctuate with posture and body position changes. Early research indicates that Burst Stimulation may be more effective than traditional tonic stimulation in some patients, especially in managing hard-to-treat back pain.


IPM Medical Group will help enroll patients with chronic intractable pain into the SUNBURST trial. Study participants will beimplanted with the Prodigy™ Chronic Pain System — the first system able to deliver the proprietary burst mode of stimulation therapy —and be randomly assigned to receive tonic stimulation alone or tonic and Burst Stimulation.The SUNBURST study will collect information regarding pain reduction, quality of life and changes in disability measures. The clinical trial is being conducted under an Investigational Device Exemption (IDE) from the U.S. Food and Drug Administration (FDA). The Prodigy neurostimulator is not approved for use in the U.S.

Patients in the Easy Bay area are encouraged to talk with their physicians or seek out pain management practitioners if they believe they are suffering from chronic pain. Additional information on theSUNBURST clinical trial can be found at

About Chronic Pain and SCS

Chronic pain is a largely under-treated and misunderstood disease that affects millions of people worldwide. According to the American Academy of Pain Medicine andThe Institute of Medicineof the National Academies, chronic pain affects 100 million people in the U.S., and costs the nation up to $635 billion annually in medical treatment and lost productivity. Neurostimulation studies have shown that SCS systems can often reduce pain symptoms by 50 percentor more. By providing significant pain relief, SCS therapy enables many patients to increase their activity levels and improve their overall quality of life.

About IPM Medical Group, Inc. 

IPM Medical Group is the premier interventional pain management group in Northern California. The practice is headquartered in Walnut Creek, with 5 additional satellite offices around the East Bay Area to accommodate all patients. IPM Medical Group continues to provide the latest treatment options for their chronic pain patients and injured workers alike. The research arm of the group provides the patients and the physicians in their area with some of the most exciting treatment modalities on the horizon for the treatment of pain. For more information please visit WWW.IPMDOCTORS.COM or contact  the research desk at 925-478-5488.