Pain physician
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Randomized Controlled Trial
Effect of early stellate ganglion blockade for facial pain from acute herpes zoster and incidence of postherpetic neuralgia.
The incidence of postherpetic neuralgia (PHN) has been reported to be 25% among those over the age of 50 years treated with antiviral medication. The role of sympathetic block in its prevention remains questionable. ⋯ Early stellate ganglion blockade, in combination with an antiviral agent, is a very effective treatment modality; it dramatically decreases the intensity of acute pain and shortens its duration and reduces the incidence of postherpetic neuralgia.
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Pain in the rectal, genital, and perineal area is a common condition treated by pain physicians. These chronic pain syndromes are therapeutically challenging because both interventional and drug therapies often are ineffective. ⋯ Topical amitriptyline-ketamine provided a high rate of pain relief with a low adverse-effect burden in patients with pelvic pain. This topical medication could offer an effective, noninvasive, nonopioid therapy for pain in the rectum, perineum, and genitals.
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Lumbar facet joints are a well recognized source of low back pain and referred pain in the lower extremity in patients with chronic low back pain. Conventional clinical features and other non-invasive diagnostic modalities are unreliable in diagnosing lumbar zygapophysial joint pain. Controlled diagnostic studies with at least 80% pain relief as the criterion standard have shown the prevalence of lumbar facet joint pain to be 16% to 41% of patients with chronic low back pain without disc displacement or radiculitis, with a false-positive rate of 17% to 49% with a single diagnostic block. ⋯ There is good evidence for diagnostic facet joint nerve blocks with 75% to 100% pain relief as the criterion standard with dual blocks, with fair evidence with 50% to 74% pain relief.
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Therapy with glucocorticoids often results in bone loss and glucocorticoid-induced osteoporosis. However, the relationship between epidural steroid injection (ESI), bone mineral density (BMD), and vertebral fracture remains to be determined. ⋯ Older age and lower BMD were associated with osteoporotic fracture in postmenopausal women treated for low back pain with ESI. The ESIs were not associated with low BMD or fracture.
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Digital subtraction angiography (DSA) has been touted as a radiologic adjunct to interventional neuraxial procedures where it is imperative to identify vascular compromise during the injection. Transforaminal epidural steroid injections (TFESI) are commonly performed interventions for treating acute and chronic radicular spine pain. We present a case of instantaneous and irreversible paraplegia following lumbar TFESI wherein a local anesthetic test dose, as well as DSA, were used as adjuncts to fluoroscopy. ⋯ We believe that this report should open further discussion regarding adding the possibility of these catastrophic events in the informed consent process for lumbar TFESIs, as it has for cervical TFESI. Utilizing blunt needles or larger bevel needles in place of sharp, cutting needles may minimize the chances of this event occurring. Considering eliminating use of particulate steroids for TFESI should be evaluated, although the use of nonparticulate agents remains controversial due to the perception that their respective duration of action is less than that of particulate steroids.