Pain physician
-
The rapid increase in the prevalence of chronic pain and disability, and the explosion of interventional pain management associated health care costs are a major concern for our community. Further, the increasing utilization of numerous modalities of treatments in managing chronic pain, continue to escalate at a pace which may not be sustainable. There are multiple regulations in place to control the growth of health care expenditures which seem to have been largely ineffective. Among the various modalities utilized in managing chronic pain, interventional techniques have shown a significant increase in their utilization in the face of continued debate with respect to the accuracy of diagnostic interventions and the efficacy of therapeutic interventions. ⋯ This update once again shows a significant increase in interventional techniques in fee-for-service Medicare beneficiaries from 2000 through 2013 with an increase of 156% per 100,000 Medicare population with an annual average increase of 7.5%. During this period the Medicare population increased 31% with an annual average increase of 2.1%.
-
Observational Study
Assessment of clinical outcomes of cervical epidural neuroplasty using a Racz-catheter and predictive factors of efficacy in patients with cervical spinal pain.
Epidural neuroplasty using the Racz catheter has a therapeutic effect in patients with cervical disc herniation and central stenosis who do not respond to fluoroscopically guided epidural injections. ⋯ Cervical epidural neuroplasty may be an effective treatment for pain reduction and functional improvement in patients with cervical spinal pain who did not respond to conservative treatment, and may decrease surgical demand. Previous surgery, spondylolisthesis, and ossification of the posterior longitudinal ligament are associated with unsuccessful outcomes of epidural neuroplasty.
-
Patients with chronic pain usually suffer from cognitive impairment, with memory deterioration being the most common deficit that affects daily functioning and quality of life. The causes for this impairment are not clear despite intensive clinical studies. Few studies have evaluated impaired learning using animal models of persistent pain. ⋯ The results of this study suggest that trigeminal neuralgia induced by cobra venom in adult rats can impair spatial learning and memory function over time and results in demonstrable changes in the ultrastructure of the medulla oblongata. This new animal model may be useful for future studies on the effect of chronic pain on learning and cognition.
-
Intradiscal biacuplasty (IDB) is a novel heating therapy using cooled radiofrequency (RF), which may offer relief for discogenic pain. Effective neuroablation may be achieved intradiscally at higher lesion temperatures. The safety of intradiscal heating at elevated temperatures using cooled RF has never been reported. ⋯ The modified treatment paradigm showed intradiscal heating is achieved and is concentrated in the posterior annulus, suggesting minimal risk of thermal damage to the neighboring neural structures. Clinical benefits should be evaluated.
-
Observational Study
Event-related cortical processing in neuropathic pain under long-term spinal cord stimulation.
Several mechanisms were suggested in the past to explain the beneficial effect of spinal cord stimulation (SCS) in patients suffering from neuropathic pain. Little is known about potential supraspinal mechanisms. ⋯ Long-term SCS for treatment of neuropathic pain influenced both pain thresholds and cortical signalling. Source localization of P1 suggests involvement of regions involved in cognitive/associative processing of pain.