[Current Situation and Issues in Transitional Medicine: A Pediatric Neurology Viewpoint]

The transition from pediatric neurology to adult neurology is not easy for patients with childhood-onset neurological or muscular diseases. The reasons can be broadly categorized into patient-related and transition system issues. To resolve these issues, the following are important: 1)promoting awareness of the necessity of future transition among patients and their families during childhood, 2)establishing a transition support team to coordinate the transitions and collect information about medical institutions for adults that can accept patients who need transition, and above all, 3)facilitating close communication and information sharing between the concerned adult and pediatric neurologists.

Medical Devices; Neurological Devices; Classification of Cranial Motion Measurement Device. Final order

The Food and Drug Administration (FDA or Agency) is classifying the cranial motion measurement device into class II (special controls). The special controls that will apply to the device are identified in this order and will be part of the codified language for the cranial motion measurement device’s classification. The Agency is classifying the device into class II (special controls) in order to provide a reasonable assurance of safety and effectiveness of the device.

Medical Devices; Neurological Devices, Classification of the Vibratory Counter-Stimulation Device. Final order

The Food and Drug Administration (FDA) is classifying the vibratory counter-stimulation device into class II (special controls). The special controls that will apply to the device are identified in this order and will be part of the codified language for the vibratory counter-stimulation device's classification. The Agency is classifying the device into class II (special controls) in order to provide a reasonable assurance of safety and effectiveness of the device.

Medical Devices; Neurological Devices; Classification of the Computerized Cognitive Assessment Aid for Concussion. Final order

The Food and Drug Administration (FDA) is classifying the Computerized Cognitive Assessment Aid for Concussion into class II (special controls). The special controls that will apply to the device are identified in this order and will be part of the codified language for the computerized cognitive assessment aid for concussion's classification. The Agency is classifying the device into class II (special controls) in order to provide a reasonable assurance of safety and effectiveness of the device.

Neurology and Neurosurgery Clinical Pharmacy Practice: Ignorance, Phobia, or Progress?

2006 marks the 40th year of publication for The Annals. Over that time, The Annals has been an important contributor to the development of clinical pharmacy. Throughout 2006, we are publishing articles reflecting on the history of clinical pharmacy through the eyes of practitioners, including those pioneering clinical pharmacy, as well as those who have more recently entered the profession and a well-established specialty. In addition, we are also presenting articles and editorials from the early history of The Annals that have given direction and shape to the practice of clinical pharmacy (see page 2240).

Medical Devices; Neurological Devices; Classification of the Thermal System for Insomnia. Final order

The Food and Drug Administration (FDA) is classifying the thermal system for insomnia into class II (special controls). The special controls that will apply to the device are identified in this order and will be part of the codified language for the thermal system for insomnia's classification. The Agency is classifying the device into class II (special controls) in order to provide a reasonable assurance of safety and effectiveness of the device.

Medical Devices; Neurological Devices; Classification of the Computerized Cognitive Assessment Aid. Final order

The Food and Drug Administration (FDA) is classifying the computerized cognitive assessment aid into class II (special controls). The special controls that will apply to the device are identified in this order, and will be part of the codified language for the computerized cognitive assessment aid's classification. The Agency is classifying the device into class II (special controls) in order to provide a reasonable assurance of safety and effectiveness of the device.

Medical devices; neurological devices; classification of the neuropsychiatric interpretive electroencephalograph assessment aid. Final order

The Food and Drug Administration (FDA) is classifying the neuropsychiatric interpretive electroencephalograph (EEG) assessment aid into class II (special controls). The Agency is classifying the device into class II (special controls) in order to provide a reasonable assurance of safety and effectiveness of the device.

[Otoneurology (definition, brief historical note, classification)]

The authors consider otoneurology to be an integral constituent part of general otorhinolaryngology. They propose its definition, present a brief historical sketch of this scientific discipline, and describe the principles of classification of the pathological conditions encompassed by this branch of general otorhinolaryngology.

The subaxial cervical spine injury classification system: a novel approach to recognize the importance of morphology, neurology, and integrity of the disco-ligamentous complex

STUDY DESIGN

The classification system was derived through a literature review and expert opinion of experienced spine surgeons. In addition, a multicenter reliability and validity study of the system was conducted on a collection of trauma cases.

OBJECTIVES

To define a novel classification system for subaxial cervical spine trauma that conveys information about injury pattern, severity, treatment considerations, and prognosis. To evaluate reliability and validity of this system.

SUMMARY OF BACKGROUND DATA

Classification of subaxial cervical spine injuries remains largely descriptive, lacking standardization and prognostic information.

METHODS

Clinical and radiographic variables encountered in subaxial cervical trauma were identified by a working section of the Spine Trauma Study Group. Significant limitations of existing systems were defined and addressed within the new system. This system, as well as the Harris and Ferguson & Allen systems, was applied by 20 spine surgeons to 11 cervical trauma cases. Six weeks later, the cases were randomly reordered and again scored. Interrater reliability, intrarater reliability, and validity were assessed.

RESULTS

Each of 3 main categories (injury morphology, disco-ligamentous complex, and neurologic status) identified as integrally important to injury classification was assigned a weighted score; the injury severity score was obtained by summing the scores from each category. Treatment options were assigned based on threshold values of the severity score. Interrater agreement as assessed by intraclass correlation coefficient of the DLC, morphology, and neurologic status scores was 0.49, 0.57, and 0.87, respectively. Intrarater agreement as assessed by intraclass correlation coefficient of the DLC, morphology, and neurologic status scores was 0.66, 0.75, and 0.90, respectively. Raters agreed with treatment recommendations of the algorithm in 93.3% of cases, suggesting high construct validity. The reliability compared favorably to the Harris and Ferguson & Allen systems.

CONCLUSION

The Sub-axial Injury Classification and Severity Scale provides a comprehensive classification system for subaxial cervical trauma. Early validity and reliability data are encouraging.

Certification in neuromuscular medicine: A new neurologic subspecialty

Information is provided concerning the new subspecialty certificate in neuromuscular medicine of the American Board of Psychiatry and Neurology and the eligibility requirements for such certification of practicing neurologists and child neurologists. The Accreditation Council for Graduate Medical Education has approved fellowship training in the subspecialty, and it is likely that residents who wish to pursue a career in neuromuscular medicine will select this training option.

Weir Mitchell's observations on sensory localization and their influence on Jacksonian neurology

BACKGROUND

John Hughlings Jackson (1835-1911) in London was critical in advancing the concept of cerebral localization. Hughlings Jackson, however, did not work in a vacuum. Silas Weir Mitchell (1829-1914), in Philadelphia, published several clinical observations related to localization.

OBJECTIVE

To examine Weir Mitchell's clinical observations on sensory localization, to determine whether they influenced Jacksonian neurology, and to elucidate the private relationship between the two men.

METHODS

The authors reviewed published (fictional and scientific writings of Weir Mitchell and scientific writings of Hughlings Jackson) and archival sources (Weir Mitchell's unpublished autobiography and Hughlings Jackson's unpublished correspondence with Weir Mitchell).

RESULTS

In the 1860s, Weir Mitchell, through his work on phantom limb syndrome and other nerve injuries, made oblique references to the central representation of body parts, specifically with regard to sensation. Hughlings Jackson had an interest in somatotopic representation in the nervous system and repeatedly cited Weir Mitchell's work in support of his ideas. The two shared several patients, met at least once in London, and carried on a friendly correspondence.

CONCLUSIONS

Weir Mitchell's observations on sensory localization were well known to Hughlings Jackson, who cited them in seminal articles on cortical localization. Their correspondence provides an example of trans-Atlantic scientific and clinical communication at the time that neurology emerged as a distinct clinical discipline.

Cardiovascular and neurological devices; reclassification of two embolization devices. Final rule

The Food and Drug Administration (FDA) is issuing a final rule to reclassify two embolization device types from class III (premarket approval) into class II (special controls). The agency is also changing the names and revising the identifications of these devices. The vascular embolization device (previously the arterial embolization device) is intended to control hemorrhaging due to aneurysms, certain types of tumors, and arteriovenous malformations. The neurovascular embolization device (previously the artificial embolization device) is intended to permanently occlude blood flow to cerebral aneurysms and cerebral arteriovenous malformations. FDA is reclassifying these devices on its own initiative on the basis of new information. FDA is taking this action under the Federal Food, Drug, and Cosmetic Act (the act), as amended by the Medical Device Amendments of 1976 (the 1976 amendments), the Safe Medical Devices Act of 1990, the Food and Drug Administration Modernization Act of 1997, and the Medical Device User Fee and Modernization Act of 2002. Elsewhere in this issue of the Federal Register, FDA is announcing the availability of the guidance document that will serve as the special control for these devices.

Vascular neurology: A new neurologic subspecialty

This article presents information about the American Board of Psychiatry and Neurology's new subspecialty certificate in vascular neurology, including the requirements for board certification. Practicing neurologists and child neurologists who have a major focus in vascular neurology can apply for the new certificate. In addition, the Accreditation Council for Graduate Medical Education has approved fellowship training in the subspecialty, and it is likely that residents who wish to pursue a career in vascular neurology will select this training option.

Are classification accuracy statistics underused in neuropsychological research?

The prevalence of classification accuracy statistics was calculated in five prominent neuropsychology journals and five leading neurology journals for the years 2000 and 2001. Only 29% of neuropsychological articles judged to be appropriate for classification accuracy statistics presented sufficient data to calculate a full range of such analyses. Moreover, classification accuracy statistics were significantly less prevalent in neuropsychology journal articles than in studies published in neurology journals during the same time period. Various indices of sensitivity and/or specificity were present in 31% of neuropsychology articles, whereas fewer than 3% reported predictive values or risk ratios. These findings indicate that classification accuracy statistics, most notably predictive values and risk ratios, are potentially underused in neuropsychology. Investigators and research consumers are encouraged to consider the applicability of classification accuracy statistics as a means of evaluating the clinical relevance of neuropsychological research findings.

The position of the neurologist in neuro-oncology

Neuro-oncology is a growing new subspeciality with a strong interdisciplinary character. This position paper explains the role of neurology in the multidisciplinary field of neurosurgeons, radiotherapists and general oncologists, dealing with neuro-oncological patients. The paper delineates the varied spectrum of the field of neuro-oncology which expands from primary brain tumours, to metastatic and non-metastatic effects of systemic cancer on the central and peripheral nervous system, neurotoxicity due to cancer treatment and issues of quality of life. It has been written by the scientific neuro-oncology panel of the European Federation of Neurological Societies (EFNS) to delineate the situation of neuro-oncology in Europe, and facilitate the understanding and implementation of this subspeciality in the future.

Nearest neighbour classification of otoneurological data

We studied the nearest neighbour classification of patient cases with benign positional vertigo, Meniere's disease, sudden deafness, traumatic vertigo, vestibular neuritis, and vestibular schwannoma. The classification results were compared to the inference results obtained by an otoneurological expert system ONE whose inference mechanism somewhat resembles the classical nearest neighbour method. With respect to the predictive accuracy, the classification results of these two systems agreed. The best predictive accuracy for the expert system ONE was 79.7% and for the nearest neighbour method 80.5%. However, differences in the true positive rates for sudden deafness, traumatic vertigo, vestibular neuritis, and vestibular schwannoma were found. The nearest neighbour classification results will be used in the refinement of ONE's knowledge base.

Physician services in an academic neurology department: using the resource-based relative-value scale to examine physician activities

The inability of physician managers and decision makers to critically analyze the resource utilization of physicians has hindered a more comprehensive understanding of the role of neurologists in the patterns and organization of medical practice. This article outlines an approach for using the physician work relative value units (RVUs) in the Medicare Fee Schedule (MFS) to address this problem and profile physician clinical activities in a comparative manner. These techniques are then used to profile the physician services associated with the neurology department at a large academic hospital. All 28,048 physician services associated with a neurology department in 1995 were studied. Using billing data, physician work RVUs were assigned to each service and the results analyzed by major services, type of service, and physician workload for physician work RVUs and physician charges. For the average service, mean physician charges were $187 per service while median physician charges were $120. Mean physician work RVUs per service averaged 1.3 RVUs, and the median was 0.94 per service. Of all the services provided in the neurology department, 65 percent are visits and consultations, while medicine services (e.g., nerve conduction studies, needle electromyography, neuropsychological testing, and electroencephalogram) make up 31 percent. All the other services combined represented less than five percent of the services in the department. The top five physicians in the department account for 33 percent of all physician work RVUs in the neurology department. Using the physician work relative values in the MFS provides a unique perspective for analyzing and understanding neurologists' work activities.

Interventional neurology: botulinum toxin as a potent symptomatic treatment in neurology

Local injections of botulinum toxin is a well-accepted treatment for focal dystonias, hemifacial spasms and strabismus. Its use by skilled neurologists has been reported to be safe and effective. We report our experience with botulinum toxin injections in 108 patients with various central nervous system disorders. Botox was effective in upper face dystonia (86% improvement), spastic dysphonia (92% improvement), platysma muscle spasms and spasmodic torticollis (range of movement 61%, pain and tension 90%). It was also very effective in a few patients with apraxia of eyelid opening, parkinsonian jaw tremor, teeth clenching, palatal myoclonus and adductor leg spasticity. No serious side effects were recorded. Botulinum toxin is a useful symptomatic treatment for many neurological disorders, and one of the leading mode of treatments in the new subspecialty in neurology called "Interventional neurology."