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1.
Neurol Clin Pract ; 14(5): e200314, 2024 Oct.
Article in English | MEDLINE | ID: mdl-38915311

ABSTRACT

Background: The combination of inadequate financial training, limited benchmarks, and mindset contribute to many physicians prioritizing revenue below quality, outcomes, and safety. This creates a challenge as hospital administrators aim to motivate clinicians to improve RVU generation and increase revenue. Recent Findings: Creating physician/administrator teams that defines and explores the gap between observed and expected financial performance in parallel with appreciating the physician's practice preferences can create new opportunities for billing. The proposed 3 phase approach emphasizes nonjudgmental communication, education and partnership. The most common and effective opportunities for improvement include billing optimization, scheduling and system infrastructure modifications. Implications for Practice: As reimbursement decrease, balancing revenue generation with physician satisfaction has become paramount. Promoting data drive bidirectional communication can lead to identifying previously unrecognized billing opportunities where change is driven by providers rather than by 1-dimensional institutional goals.

2.
Neurol Clin Pract ; 11(4): e430-e437, 2021 Aug.
Article in English | MEDLINE | ID: mdl-34484941

ABSTRACT

OBJECTIVE: The demand for neurology services at Geisinger exceeds the current clinical capacity. Therefore, we implemented and assessed the utility of Ask-a-Doc (AAD), which is an electronic medical record-based interface developed at Geisinger to facilitate communication between primary care physicians (PCPs) and specialists. METHODS: AAD was used at the end of 2015 in our department. Based on the clinical picture, the PCP assesses whether to send an urgent AAD question with a phone request or a more elective question that can be answered by email message. The AAD message is then relayed to the on-call neurologist. We analyzed 4-year longitudinal data to assess for the efficacy of this tool in our department in improving patient care and communication. RESULTS: There were a total of 3,190 messages during this period. Of which, 2,927 (91.7%) were completed and routed correctly, and 263 (8.3%) messages had errors including routing issues, communication mismatch, and delayed time frame. The average specialist turnaround time was 5 hours. During this period, the number of AAD messages increased by 300% as PCPs and neurologists became more comfortable with the process. CONCLUSIONS: AAD provides an interface between PCPs and neurology specialists and can assist in determining whether a patient needs to be seen urgently in the clinic, the correct subspecialty, and prerequisite diagnostic tests. AAD was successfully implemented and used in our rural neurology setting, with rapid turnaround, increased usage, and accuracy.

3.
J Neurol Sci ; 422: 117339, 2021 Mar 15.
Article in English | MEDLINE | ID: mdl-33592506

ABSTRACT

INTRODUCTION: The stroke mortality rate has gradually declined due to improved interventions and controlled risk factors. We investigated the associated factors and trends in recurrence and all-cause mortality in ischemic stroke patients from a rural population in the United States between 2004 and 2018. METHODS: This was a retrospective cohort study based on electronic health records (EHR) data. A comprehensive stroke database called "Geisinger NeuroScience Ischemic Stroke (GNSIS)" was built for this study. Clinical data were extracted from multiple sources, including EHR and quality data. RESULTS: The cohort included in the study comprised of 8561 consecutive ischemic stroke patients (mean age: 70.1 ± 13.9 years, men: 51.6%, 95.1% Caucasian). Hypertension was the most prevalent risk factor (75.2%). The one-year recurrence and all-cause mortality rates were 6.3% and 16.1%, respectively. Although the one-year stroke recurrence increased during the study period, the one-year stroke mortality rate decreased significantly. Age > 65 years, atrial fibrillation or flutter, heart failure, and prior ischemic stroke were independently associated with one-year all-cause mortality in stratified Cox proportional hazards model. In the Cause-specific hazard model, diabetes, chronic kidney disease and age < 65 years were found to be associated with one-year ischemic stroke recurrence. CONCLUSION: Although all-cause mortality after stroke has decreased, stroke recurrence has significantly increased in stroke patients from rural population between 2004 and 2018. Older age, atrial fibrillation or flutter, heart failure, and prior ischemic stroke were independently associated with one-year all-cause mortality while diabetes, chronic kidney disease and age less than 65 years were predictors of ischemic stroke recurrence.


Subject(s)
Atrial Fibrillation , Brain Ischemia , Ischemic Stroke , Stroke , Aged , Aged, 80 and over , Brain Ischemia/epidemiology , Humans , Male , Middle Aged , Proportional Hazards Models , Retrospective Studies , Risk Factors , Rural Population , Stroke/epidemiology , Stroke/therapy , United States/epidemiology
4.
JAMA Neurol ; 78(1): 77-87, 2021 01 01.
Article in English | MEDLINE | ID: mdl-33044505

ABSTRACT

Importance: Management of transient ischemic attack (TIA) has gained significant attention during the past 25 years after several landmark studies indicated the high incidence of a subsequent stroke. Objective: To calculate the pooled event rate of subsequent ischemic stroke within 2, 7, 30, and 90 days of a TIA and compare this incidence among the population with TIA recruited before 1999 (group A), from 1999 to 2007 (group B), and after 2007 (group C). Data Sources: All published studies of TIA outcomes were obtained by searching PubMed from 1996, to the last update on January 31, 2020, irrespective of the study design, document type, or language. Study Selection: Of 11 516 identified citations, 175 articles were relevant to this review. Both the classic time-based definition of TIA and the new tissue-based definition were accepted. Studies with a combined record of patients with TIA and ischemic stroke, without clinical evaluation for the index TIA, with diagnosis of index TIA event after ischemic stroke occurrence, with low suspicion for TIA, or duplicate reports of the same database were excluded. Data Extraction and Synthesis: The study was conducted and reported according to the PRISMA, MOOSE, and EQUATOR guidelines. Critical appraisal and methodological quality assessment used the Quality in Prognosis Studies tool. Publication bias was visualized by funnel plots and measured by the Begg-Mazumdar rank correlation Kendall τ2 statistic and Egger bias test. Data were pooled using double arcsine transformations, DerSimonian-Laird estimator, and random-effects models. Main Outcomes and Measures: The proportion of the early ischemic stroke after TIA within 4 evaluation intervals (2, 7, 30, and 90 days) was considered as effect size. Results: Systematic review yielded 68 unique studies with 223 866 unique patients from 1971 to 2019. The meta-analysis included 206 455 patients (58% women) during a span of 4 decades. The overall subsequent ischemic stroke incidence rates were estimated as 2.4% (95% CI, 1.8%-3.2%) within 2 days, 3.8% (95% CI, 2.5%-5.4%) within 7 days, 4.1% (95% CI, 2.4%-6.3%) within 30 days, and 4.7% (95% CI, 3.3%-6.4%) within 90 days. There was a recurrence risk of 3.4% among group A in comparison with 2.1% in group B or 2.1% in group C within 2 days; 5.5% in group A vs 2.9% in group B or 3.2% in group C within 7 days; 6.3% in group A vs 2.9% in group B or 3.4% in group C within 30 days, and 7.4% in group A vs 3.9% in group B or 3.9% in group C within 90 days. Conclusions and Relevance: These findings suggest that TIA continues to be associated with a high risk of early stroke; however, the rate of post-TIA stroke might have decreased slightly during the past 2 decades.


Subject(s)
Ischemic Attack, Transient/complications , Ischemic Stroke/epidemiology , Ischemic Stroke/etiology , Humans , Incidence , Risk Factors
5.
BMC Med Inform Decis Mak ; 20(1): 112, 2020 06 18.
Article in English | MEDLINE | ID: mdl-32552700

ABSTRACT

BACKGROUND: Transient ischemic attack (TIA) is a brief episode of neurological dysfunction resulting from cerebral ischemia not associated with permanent cerebral infarction. TIA is associated with high diagnostic errors because of the subjective nature of findings and the lack of clinical and imaging biomarkers. The goal of this study was to design and evaluate a novel multinomial classification model, based on a combination of feature selection mechanisms coupled with logistic regression, to predict the likelihood of TIA, TIA mimics, and minor stroke. METHODS: We conducted our modeling on consecutive patients who were evaluated in our health system with an initial diagnosis of TIA in a 9-month period. We established the final diagnoses after the clinical evaluation by independent verification from two stroke neurologists. We used Recursive Feature Elimination (RFE) and Least Absolute Shrinkage and Selection Operator (LASSO) for prediction modeling. RESULTS: The RFE-based classifier correctly predicts 78% of the overall observations. In particular, the classifier correctly identifies 68% of the cases labeled as "TIA mimic" and 83% of the "TIA" discharge diagnosis. The LASSO classifier had an overall accuracy of 74%. Both the RFE and LASSO-based classifiers tied or outperformed the ABCD2 score and the Diagnosis of TIA (DOT) score. With respect to predicting TIA, the RFE-based classifier has 61.1% accuracy, the LASSO-based classifier has 79.5% accuracy, whereas the DOT score applied to the dataset yields an accuracy of 63.1%. CONCLUSION: The results of this pilot study indicate that a multinomial classification model, based on a combination of feature selection mechanisms coupled with logistic regression, can be used to effectively differentiate between TIA, TIA mimics, and minor stroke.


Subject(s)
Brain Ischemia , Ischemic Attack, Transient , Logistic Models , Stroke , Aged , Aged, 80 and over , Female , Humans , Ischemic Attack, Transient/diagnosis , Male , Middle Aged , Pilot Projects , Risk Factors , Stroke/diagnosis
6.
eNeurologicalSci ; 15: 100193, 2019 Jun.
Article in English | MEDLINE | ID: mdl-31193470

ABSTRACT

BACKGROUND AND PURPOSE: The goal of this study was to investigate the rate and associated factors of Transient Ischemic Attack (TIA) misdiagnosis. METHODS: We retrospectively analyzed consecutive patients with an initial diagnosis of TIA in the emergency department (ED) in a 9-month period. All hospitalized TIA patients were evaluated by a neurologist within 24 h and had at least one hospital discharge follow-up visit within three months. Patients' clinical data and neuroimaging were reviewed. The final diagnosis was independently verified by two stroke neurologists. RESULTS: Out of 276 patients with the initial diagnosis of TIA, 254 patients (mean age 68.7 ±â€¯15.4 years, 40.9% male, 25.2% final diagnosis of TIA) were included in the analysis. Twenty-four patients (9.4%) were referred to our rapid-access TIA clinic. The rate of TIA misdiagnosis among TIA clinic referred patients was 45.8%. Among the 230 patients in inpatient setting, the rate of TIA misdiagnosis was 60.0%. A hospital discharge diagnosis of TIA was observed in 54.3% of hospitalized patients; however, only 24.8% had the final diagnosis of TIA. Among hospitalized patients, the univariate analysis suggests a significant difference (P < .05) between the two groups (correctly versus misdiagnosed patients) in terms of hospital discharge diagnosis, final diagnosis, history of diabetes mellitus, and coronary artery disease. In regression model hospital discharge diagnosis (P < .001), final diagnosis (P < .001), and diabetes mellitus (P = .018) retained independent association with TIA misdiagnosis. CONCLUSION: Our study indicates a high rate of TIA misdiagnosis in the emergency department, hospital, and outpatient clinics.

7.
Front Neurol ; 10: 294, 2019.
Article in English | MEDLINE | ID: mdl-30972019

ABSTRACT

Background and Objective: Although the risk of recurrent cerebral ischemia is higher after a transient ischemic attack (TIA), there is limited data on the outcome of TIA mimics. The goal of this study is to compare the 6-month outcome of patients with negative and positive diffusion-weighted imaging (DWI) TIAs (DWI-neg TIA vs. DWI-pos TIA) and also TIA mimics. Methods: We prospectively studied consecutive patients with an initial diagnosis of TIA in our tertiary stroke centers in a 2-year period. Every included patient had an initial magnetic resonance (MR) with DWI and one-, three-, and six-month follow-up visits. The primary outcome was defined as the composition of intracerebral hemorrhage, ischemic stroke, TIA, coronary artery disease, and death. Results: Out of 269 patients with the initial diagnosis of TIA, 259 patients (mean age 70.5 ± 15.0 [30-100] years old, 56.8% men) were included in the final analysis. Twenty-one (8.1%, 95% confidence interval [CI] 5.1-12.1%) patients had a composite outcome event within the six-month follow-up. Five (23.8%) and 13 (61.9%) composite outcome events occurred in the first 30 and 90 days, respectively. Among patients with DWI-neg TIA, the one- and six-month ischemic stroke rate was 1.5 and 4.6%, respectively. The incidence proportion of composite outcome event was significantly higher among patients who had the diagnosis of DWI-neg TIA compared with those who had the diagnosis of TIA mimics (12.2 vs. 2.1%-relative risk 5.9; 95% CI, 1.4-25.2). In our univariable analysis among patients with DWI-neg TIA and DWI-pos TIA, age (P = 0.017) was the only factor that was significantly associated with the occurrence of the composite outcome. Conclusion: Our study indicated that the overall six-month rate of the composite outcome among patients DWI-neg TIA, DWI-pos TIA, and TIA mimics were 12.2, 9.7, and 2.1%, respectively. Age was the only factor that was significantly associated with the occurrence of the composite outcome.

8.
Front Neurol ; 10: 1400, 2019.
Article in English | MEDLINE | ID: mdl-32038464

ABSTRACT

Background: Paroxysmal atrial fibrillation (PAF) or flutter is prevalent among patients with cryptogenic stroke. The goal of this study was to investigate the feasibility of incorporating a fast-track, long term continuous heart monitoring (LTCM) program within a stroke clinic. Method: We designed and implemented a fast-track LTCM program in our stroke clinics. The instrument that we used for the study was the ZioXT® device from IRhythm™ Technologies. To implement the program, all clinic support staff received training on the skin preparation and proper placement of the device. We prospectively followed every patient who had a request from one of our inpatient or outpatient stroke or neurology providers to receive LTCM. We recorded patients' demographics, the LTCM indication, as well as related quality measures including same-visit placement, wearing time, analyzable time, LTCM application to the preliminary finding time, as well as patients' out of pocket cost. Results: Out of 501 patients included in the study, 467 (93.2%) patients (mean age 65.9 ± 13; men: 48%) received LTCM; and 92.5% of the patients had the diagnosis of stroke or TIA. 93.7% of patients received their LTCM during the same outpatient visit in the stroke clinic. The mean wearing time for LTCM was 12.1 days (out of 14 days). The average analyzable time among our patients was 95.0%. Eighteen (3.9%, 95%CI: 2.4-6.0) patients had at least one episode of PAF that was sustained for more than 30 s. The rate of PAF was 5.9% (95% CI: 3.5-9.2) among patients with the diagnosis of stroke. Out of 467 patients, 392 (84%) had an out-of-pocket cost of < $100. Conclusion: It is feasible to implement a fast-track cardiac monitoring as part of a stroke clinic with proper training of stroke providers, clinic staff, and support from a cardiology team.

9.
J Cereb Blood Flow Metab ; 38(11): 1853-1871, 2018 11.
Article in English | MEDLINE | ID: mdl-30182779

ABSTRACT

Investigation of genetic susceptibility to cerebrovascular disease has been of growing interest. A systematic review of human studies assessing neurogenomic aspects of cerebrovascular disease was performed according to the preferred reporting items for systematic reviews and meta-analyses (PRISMA) statement. Any association study exploring genetic variants located in the exome associated with one of the major cerebrovascular diseases with at least 500 subjects was eligible for inclusion. Of 6874 manuscripts identified, 35 studies met the inclusion criteria. Most studies of interest focused on ischemic stroke and cerebrovascular occlusive disease. Large cohort genetic association studies on hemorrhagic cerebrovascular disease were less common. In addition to rare, well-established monogenic conditions with significant risk for cerebrovascular disease, a number of genetic variants are also relevant to cerebrovascular pathogenesis as part of a multifactorial process. The 45 polymorphisms identified were located in genes involved in processes related to endothelial and vascular health (15 (33.4%) variants), plasma lipid metabolism (10 (22.2%) variants), inflammation (9 (20%) variants), coagulation (3 (6.7%) variants), and blood pressure modulation (2 (4.4%) variants), and other (6 (13.3%) variants). This work represents a comprehensive overview of genetic variants in the exome relevant to ischemic and hemorrhagic stroke pathophysiology.


Subject(s)
Cerebrovascular Disorders/genetics , Genetic Predisposition to Disease/genetics , Humans
11.
Case Rep Neurol ; 7(3): 191-5, 2015.
Article in English | MEDLINE | ID: mdl-26500542

ABSTRACT

A slowly progressive hemiparesis beginning in a single limb with evolution to the ipsilateral limb was originally described in 8 patients in 1906 by Mills. We present 5 cases of progressive hemiparetic corticospinal tract degeneration, identified by the clinical presentation and the exclusion of other etiologies using serological, imaging, and electrodiagnostic studies.

12.
Case Rep Crit Care ; 2014: 918247, 2014.
Article in English | MEDLINE | ID: mdl-25328719

ABSTRACT

Autonomic dysfunction related to seizures may give rise to a broad spectrum of cardiovascular abnormalities. Among these, ictal bradycardia and conduction delays may be encountered. Failure to recognize these abnormalities may contribute to sudden, unexplained death in epilepsy patients. We report a case of a Haitian female with temporal lobe epilepsy associated with recurrent sinus pauses.

13.
Perspect Med Educ ; 3(1): 41-45, 2014 Jan.
Article in English | MEDLINE | ID: mdl-24307398

ABSTRACT

The Drexel neurology clerkship experience can vary from large groups at a university hospital inpatient unit to smaller groups at private physician offices. Evaluations are based on the site director's subjective assessment and performance on the National Board of Medical Examiners neurology shelf examination. We are developing a standardized online clinical neurology course and quiz for the whole clerkship. We piloted the course and quiz at a single site for one academic year and compared their test scores with a control group of students at other clerkship sites who took the online quiz without viewing the course. Students at the pilot site achieved higher scores both on the neurology shelf examination and the clinical quiz and also reported higher teaching satisfaction scores than students at all other sites. There was a 97 % participation rate in the online quiz from the other sites. Use of this online course and quiz provides effective standardized clinical neurology teaching and evaluation that can be applied to students across multiple sites.

14.
J Child Neurol ; 28(5): 648-50, 2013 May.
Article in English | MEDLINE | ID: mdl-22752484

ABSTRACT

A 17-year-old girl presented with rapidly progressive quadriparesis and ventilatory failure. The clinical findings indicated a spinal level, but the diagnosis of myelopathy was not supported by her initial spinal imaging and cerebrospinal fluid studies. She had completed treatment for Guillain-Barré syndrome before a follow-up spinal imaging study showed interval expansion and enhancement of the cervical cord.


Subject(s)
Image Enhancement , Magnetic Resonance Imaging , Quadriplegia/diagnosis , Respiratory Insufficiency/diagnosis , Spinal Cord Diseases/diagnosis , Adolescent , Cartilage Diseases , Cervical Vertebrae/pathology , Contrast Media/administration & dosage , Diagnosis, Differential , Embolism , Female , Guillain-Barre Syndrome/diagnosis , Humans , Infarction/diagnosis , Myelitis, Transverse/diagnosis , Neurologic Examination , Spinal Cord/blood supply , Spinal Cord/pathology , Thoracic Vertebrae/pathology
15.
J Clin Neurophysiol ; 29(6): 489-92, 2012 Dec.
Article in English | MEDLINE | ID: mdl-23207587

ABSTRACT

Transpedicular instrumentation of the thoracic and cervical spine is technically more difficult than at lumbar levels because of narrower pedicles and less sensitive intraoperative fluoroscopic assessment. Furthermore, the potential implications of a misplaced screw are greater because of the close proximity of the spinal cord and vertebral artery. Real-time confirmation of correct pedicle screw placement in the operating room is therefore considered even more important, and this article reviews the availability, utility, and limitations of electrophysiologic testing techniques that can be used for this purpose.


Subject(s)
Bone Screws , Cervical Vertebrae/surgery , Electrophysiology/methods , Monitoring, Intraoperative/methods , Thoracic Vertebrae/surgery , Humans
17.
J Spinal Cord Med ; 34(2): 241-7, 2011.
Article in English | MEDLINE | ID: mdl-21675363

ABSTRACT

BACKGROUND: Major trauma to the spinal cord or upper extremity often results in severe sensory and motor disturbances from injuries to the brachial plexus and its insertion into the spinal cord. Functional restoration with nerve grafting neurotization and tendon transfers is the mainstay of treatment. Results may be incomplete due to a limited supply of autologous material for nerve grafts. The factors deemed most integral for success are early surgical intervention, reconstruction of all levels of injury, and maximization of the number of axonal conduits per nerve repair. OBJECTIVE: To report the second series of nerve allograft transplantation using cadaveric nerve graft and our experience with living-related nerve transplants. PARTICIPANTS: Eight patients, seven men and one woman, average age 23 years (range 18-34), with multi-level brachial plexus injuries were selected for transplantation using either cadaveric allografts or living-related donors. METHODS: Grafts were harvested and preserved in the University of Wisconsin Cold Storage Solution at 5 degrees C for up to 7 days. The immunosuppressive protocol was initiated at the time of surgery and was discontinued at approximately 1 year, or when signs of regeneration were evident. Parameters for assessment included mechanism of injury, interval between injury and treatment, level(s) of deficit, post-operative return of function, pain relief, need for revision surgery, complications, and improvement in quality of life. RESULTS: Surgery was performed using living-related donor grafts in six patients, and cadaveric grafts in two patients. Immunosuppression was tolerated for the duration of treatment in all but one patient in whom early termination occurred due to non-compliance. There were no cases of graft rejection as of most recent followup. Seven patients showed signs of regeneration, demonstrated by return of sensory and motor function and/or a migrating Tinel's sign. One patient was non-compliant with the post-operative regimen and experienced minimal return of function despite a reduction in pain. CONCLUSIONS: Despite the small number of subjects, it appears that nerve allograft transplantation may be performed safely, permitting non-prioritized repair of long-segment peripheral nerve defects and maximizing the number of axonal conduits per nerve repair. For patients with long, multi-level brachial plexus injuries or combined upper and lower extremity nerve deficits, the use of nerve allograft allows a more complete repair that may translate into greater functional restoration than autografting alone.


Subject(s)
Peripheral Nerves/surgery , Recovery of Function/physiology , Spinal Cord Injuries/surgery , Transplantation, Homologous/methods , Upper Extremity/physiopathology , Adolescent , Adult , Female , Humans , Immunosuppressive Agents/therapeutic use , Male , Neural Conduction/physiology , Spinal Cord Injuries/physiopathology , Treatment Outcome , Young Adult
18.
Am J Med Sci ; 337(4): 256-8, 2009 Apr.
Article in English | MEDLINE | ID: mdl-19365170

ABSTRACT

BACKGROUND: : Acquired copper deficiency in adults leads to hematological and neurological manifestations that mimic vitamin B12 deficiency. A significant number of patients with copper deficiency syndrome have a history of gastric surgery, often remote. We sought to determine whether copper deficiency is present in a population of individuals with longstanding partial gastric resection. METHODS: : Serum copper, ceruloplasmin, and zinc levels were determined in 20 patients with a history of partial gastric resection and 50 controls, randomly selected from the Oklahoma City Veterans Affairs Medical Center electronic database. RESULTS: : Hypocupremia and symptoms of copper deficiency were detected in patients with partial gastric resection in contrast to controls (3/20 versus 0/50, P = 0.02). Serum copper and ceruloplasmin levels were significantly lower in individuals with partial gastric resection than in controls (P = 0.04 and P = 0.001, respectively). The mean interval between gastric surgery and testing was 20.7 years. CONCLUSIONS: : Our results indicate that a significant number of individuals with longstanding history of partial gastric resection have undiagnosed hypocupremia. Screening for copper deficiency after gastric surgery may prevent the development of hematological and neurological complications in these patients.


Subject(s)
Copper/deficiency , Gastrectomy/adverse effects , Postoperative Complications/blood , Adult , Aged , Aged, 80 and over , Ceruloplasmin/metabolism , Copper/administration & dosage , Dietary Supplements , Humans , Male , Middle Aged , Vitamin B 12 Deficiency/blood
19.
Am J Hematol ; 82(4): 288-90, 2007 Apr.
Article in English | MEDLINE | ID: mdl-16986134

ABSTRACT

Clinical similarities between vitamin B(12) and copper deficiencies prompted us to investigate if hypocupremia is present in patients receiving vitamin B(12) supplementation. Our pilot study results indicate that a significant number of elderly patients with prior diagnosis of vitamin B(12) deficiency have also undiagnosed hypocupremia.


Subject(s)
Ceruloplasmin/analysis , Copper/deficiency , Neurodegenerative Diseases/blood , Vitamin B 12 Deficiency , Aged , Aged, 80 and over , Case-Control Studies , Female , Humans , Male , Middle Aged , Neurodegenerative Diseases/etiology , Pilot Projects , Vitamin B 12/blood , Vitamin B 12 Deficiency/blood , Vitamin B 12 Deficiency/complications
20.
Muscle Nerve ; 32(2): 236-40, 2005 Aug.
Article in English | MEDLINE | ID: mdl-16003732

ABSTRACT

This evidence-based review was performed to evaluate the utility of nerve conduction studies (NCSs) and needle electromyography (EMG) in the diagnosis of tibial neuropathy at the ankle (tarsal tunnel syndrome, TTS). A total of 317 articles on TTS were identified that were published in English from 1965 through April 2002, from the National Library of Medicine MEDLINE database. All articles were reviewed on the basis of six selection criteria. The results of this search revealed that four articles met five or more criteria. All four articles examined the use of electrodiagnostic (EDX) techniques for the evaluation of patients with clinically suspected TTS, and were included in this practice parameter. Each of these four studies was considered to meet Class III level of evidence. NCSs were abnormal in some patients with suspected TTS. Sensory NCSs were more likely to be abnormal than motor NCSs but the actual sensitivity and specificity could not be determined. The sensitivity of needle EMG abnormalities could not be determined. NCSs may be useful for confirming the diagnosis of tibial neuropathy at the ankle, recommendation Level C. Well-designed studies are needed to evaluate more definitively EDX techniques in TTS.


Subject(s)
Ankle/physiopathology , Electrodiagnosis/standards , Evidence-Based Medicine , Tarsal Tunnel Syndrome/diagnosis , Tibial Nerve/physiopathology , Action Potentials/physiology , Clinical Trials as Topic/standards , Databases, Bibliographic , Electrodiagnosis/methods , Electromyography/methods , Electromyography/standards , Humans , Neural Conduction/physiology , Paresis/diagnosis , Paresis/etiology , Paresis/physiopathology , Predictive Value of Tests , Prognosis , Prospective Studies , Reproducibility of Results , Sensation Disorders/diagnosis , Sensation Disorders/etiology , Sensation Disorders/physiopathology , Tarsal Tunnel Syndrome/physiopathology
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