Isolated Neck Extensor Myopathy: Is it Responsive to Immunotherapy?
Summary of "Isolated Neck Extensor Myopathy: Is it Responsive to Immunotherapy?"
: To determine if isolated neck extensor myopathy (INEM) is responsive to immunosuppressive treatment.
: We retrospectively reviewed charts of patients with INEM from 2002 to 2008 to identify patients and determine the response to immunomodulatory therapy. Clinical, electrodiagnostic, histologic, and radiographic data were reviewed.
: Four patients were identified during the study period. Three were women. The age of onset of neck extensor weakness ranged from 58 to 78 years. Serum creatine kinase levels were within normal limits in all patients. None had clinical, laboratory, or electrophysiological findings to suggest a generalized neuromuscular disorder. On electrodiagnostic studies, all patients had myopathic changes with or without irritative features in cervical paraspinal muscles. No inflammation was present on muscle biopsy from three of the patients. All patients received one or more immunosuppressive agents. Neck strength improved by 1 point or greater on the Medical Research Council scale in all subjects with a peak response observed between 3 and 6 months after treatment initiation.
: A trial of immunosuppressive agents should be offered to patients with INEM because a subset will improve. Rigorously defined, INEM is a noninflammatory myopathy. However, a focal myositis could be missed on muscle biopsy and may explain the favorable response to treatment.
From the *Department of Neurology, University of Texas Southwestern Medical Center, Dallas, TX; daggerPhoenix Neurological Associates, Phoenix, AZ; and double daggerNerve and Muscle Center of Texas, Houston, TX.
This article was published in the following journal.
Name: Journal of clinical neuromuscular disease
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/20808161
- DOI: http://dx.doi.org/10.1097/CND.0b013e3181d4a515
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Medical and Biotech [MESH] Definitions
A disorder consisting of areas of macular depigmentation, commonly on extensor aspects of extremities, on the face or neck, and in skin folds. Age of onset is often in young adulthood and the condition tends to progress gradually with lesions enlarging and extending until a quiescent state is reached.
Dissection in the neck to remove all disease tissues including cervical LYMPH NODES and to leave an adequate margin of normal tissue. This type of surgery is usually used in tumors or cervical metastases in the head and neck. The prototype of neck dissection is the radical neck dissection described by Crile in 1906.
Form of passive immunization where previously sensitized immunologic agents (cells or serum) are transferred to non-immune recipients. When transfer of cells is used as a therapy for the treatment of neoplasms, it is called adoptive immunotherapy (IMMUNOTHERAPY, ADOPTIVE).
A major nerve of the upper extremity. In humans the fibers of the radial nerve originate in the lower cervical and upper thoracic spinal cord (usually C5 to T1), travel via the posterior cord of the brachial plexus, and supply motor innervation to extensor muscles of the arm and cutaneous sensory fibers to extensor regions of the arm and hand.
Form of adoptive transfer where cells with antitumor activity are transferred to the tumor-bearing host in order to mediate tumor regression. The lymphoid cells commonly used are lymphokine-activated killer (LAK) cells and tumor-infiltrating lymphocytes (TIL). This is usually considered a form of passive immunotherapy. (From DeVita, et al., Cancer, 1993, pp.305-7, 314)