Neuromodulation : journal of the International Neuromodulation Society
-
In current medical literature, most reported complications during spinal cord stimulation (SCS) concern technical problems, such as malfunction, migration or breakage of the lead, or internal pulse generator dysfunction, while reports about side-effects caused by SCS are rare. In this clinical report, we describe uncommon and unexplained gastrointestinal (GI) side-effects of constipation, abdominal pain, and distension during SCS in a patient suffering for chronic neuropathic pain caused by failed back surgery syndrome. These GI symptoms disappeared after suspension of SCS and were reduced if the stimulation settings were reduced below paresthesia threshold. The symptoms experienced by our patient could be related to a functional and reversible block of parasympathetic outflow in the GI system since SCS may involve not only dorsal horn structures but also somatic and visceral sensory afferents to these structures in an unpredictable way.
-
Background. Buerger disease is a nonatherosclerotic, segmental, occlusive and recurrent inflammatory vascular disorder that affects small and medium-sized arteries and veins of the upper and lower extremities. Case reports. We report two cases of Buerger disease. Medical History. Smoking habit. ⋯ Following all of the above treatments, Synergy(®) spinal cord (ECP) stimulator with two electrodes (Quad PISCES(©) ) placed at the level of T9-T10. Results. There has been a reduction in pain of about 80% and an improvement of intermittent claudication (one of the patients no longer claudicates, whereas the other patient claudicates at 400 m). Conclusion. Neurostimulation of the posterior funiculi could be considered not only as palliative care but also as a therapeutic option.
-
Currently accepted chronic pain treatment algorithms have positioned therapies according to levels of invasiveness and up-front costs. After reviewing updated literature on efficacy and cost outcomes of care for patients with chronic pain that include interventional implantable technologies, we offer a new model of thinking when formulating algorithms of care that might include more invasive and costly interventions such as spinal cord stimulation, the SAFE principles. These SAFE principles include "safety,"appropriateness,"fiscal neutrality," and "efficacy."
-
Objectives. This study attempts to confirm the hypothesis that transcutaneous electrical stimulation (TENS) of peripheral Aβ fibers inhibits nociceptive processing, by quantifying the change of laser-evoked potential (LEP) components, using a 980-nm diode laser. Materials and Methods. Cutaneous heat stimuli were delivered to the dorsum of the right hand in 13 volunteers. LEPs and pain intensity ratings were recorded before, during, and after the use of TENS (110 Hz) at the dorsolateral forearm. ⋯ After 10 min of TENS this was associated with a clinically relevant decrease of pain intensity. Conclusions. Our data suggest that TENS inhibits nociceptive processing. Ten minutes of TENS exerts a clinically relevant pain reduction.
-
The history of the use of electrical stimulation for pain is a cavalcade of research and innovation of many great scholars, scientists, and physicians over centuries that continues up to the present day. The legacy of this philosophy, research, and innovation is the field of neuromodulation for pain control. Today, patients with chronic pain from damage to the nervous system and chronic pain of the extremities, the axial low back, and neck, the face, and the viscera, all derive benefit from these early pioneers that have led to the expanding field of neuromodulation ... "on the shoulders of giants." We present here a history of the understandings of pain from the ancients to the present, which has led to our understandings of the use of electricity to cure disease and release patients from their suffering, generating the new, exciting, and expanding field of neuromodulation.