Kasra Amirdelfan

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OBJECTIVE To describe and answer questions concerning the spread of contrast in patients receiving correctly placed lumbar epidural steroid injections (ESIs) under fluoroscopy. DESIGN Prospective observational study. SETTING An outpatient surgery center. PARTICIPANTS Consecutive patients (N=114) receiving ESIs under fluoroscopy who met inclusion(More)
BACKGROUND Current treatments for chronic pain have limited effectiveness and commonly known side effects. Given the prevalence and burden of intractable pain, additional therapeutic approaches are desired. Spinal cord stimulation (SCS) delivered at 10 kHz (as in HF10 therapy) may provide pain relief without the paresthesias typical of traditional(More)
OBJECTIVES   Spinal cord stimulation (SCS) has become a mainstay in the continuum of care for patients suffering from chronic neuropathic pain of the trunk and limbs. Options for placing these devices have included a percutaneous method of using an epidural needle to place a cylindrical (percutaneous) lead to stimulate the spinal cord, or an open laminotomy(More)
Animal and human studies indicate that electrical stimulation of dorsal root ganglion (DRG) neurons may modulate neuropathic pain signals. ACCURATE, a pivotal, prospective, multicenter, randomized comparative effectiveness trial, was conducted in 152 subjects diagnosed with complex regional pain syndrome or causalgia in the lower extremities. Subjects(More)
OBJECTIVE The Epiducer lead delivery system is a novel lead delivery device that can be used to percutaneously implant S-Series paddle leads (St. Jude Medical, Plano, TX, USA) as well as multiple percutaneous leads obviating the need for laminectomy and/or multiple needle sticks, respectively. This study evaluates the safety and usage of the Epiducer lead(More)
OBJECTIVES The issue of low back pain (LBP) is as common as it is perplexing. LBP is thought to be a chronic issue in approximately 10% of the U.S. population. This condition has wide-reaching social and economical reverberations. Despite the availability of modern diagnostic tools, the cause of the pain generator is often unidentifiable. The authors were(More)
Over 1.2 million patients are diagnosed with, and in active treatment for lumbar spinal stenosis (LSS) at any given time. Typically, these patients experience discomfort while walking or standing, for any length of time. The LSS treatment algorithm contains a gap of under-treated patients between epidural steroid injections (ESI) and open surgery. With the(More)
BACKGROUND Intrathecal drug delivery has undergone a revitalization following a better understanding of this delivery route and its pharmacokinetics. Driven by patient safety and outcomes, clinicians are motivated to rethink the traditional spinal infusion pump patient selection criteria and indications. We review the current understanding of the(More)
OBJECTIVE The purpose of the multicenter, randomized, unblinded, crossover success using neuromodulation with BURST (SUNBURST) study was to determine the safety and efficacy of a device delivering both traditional tonic stimulation and burst stimulation to patients with chronic pain of the trunk and/or limbs. METHODS Following a successful tonic trial,(More)
STUDY DESIGN A significant number of lumbar postsurgical patients continue to suffer persistent pain and limited function and are termed to have "Failed back surgery syndrome" (FBSS). This review evaluates clinical trial data for the treatment of FBSS patients. OBJECTIVE Using an evidence-based approach to evaluate FBSS treatments will assist clinicians(More)