Research Topics
Species | Andrew McKeonSummaryAffiliation: Mayo Clinic Country: USA Publications
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Publications
Stiff-man syndrome and variants: clinical course, treatments, and outcomesAndrew McKeon
Department of Neurology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905
Arch Neurol 69:230-8. 2012..Little information is available about the incidence of stiff-man syndrome (SMS) (the classic form or its variants) or about long-term treatment responses and outcomes...
Psychogenic tremor: long-term prognosis in patients with electrophysiologically confirmed diseaseAndrew McKeon
Department of Neurology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
Mov Disord 24:72-6. 2009..037). Physiologically-confirmed psychogenic tremor carries a poor prognosis, with unremitting or worse tremor persisting 3-years after diagnosis in most...
Psychogenic tremor occurring after deep brain stimulation surgery for essential tremorAndrew McKeon
Department of Neurology, Mayo Clinic, 200 1st St SW, Rochester, MN 55905, USA
Neurology 70:1498-9. 2008
The spectrum of disorders presenting as adult-onset focal lower extremity dystoniaAndrew McKeon
Department of Neurology, Mayo Clinic, Rochester, MN 55905, USA
Parkinsonism Relat Disord 14:613-9. 2008..Uncommonly, adult-onset dystonia is confined to one lower extremity. We sought to characterize the clinical spectrum associated with the presenting phenotype of lower limb dystonia including foot torsion...
The alcohol withdrawal syndromeA McKeon
Department of Neurology and Clinical Neurosciences, Beaumont Hospital, Dublin, and Royal College of Surgeons in Ireland, Dublin, Ireland
J Neurol Neurosurg Psychiatry 79:854-62. 2008..Although AWS may be complex, careful evaluation and available treatments should ensure safe detoxification for most patients...
Potassium channel antibody associated encephalopathy presenting with a frontotemporal dementia like syndromeAndrew McKeon
Department of Neurology, Mater Misericordiae University Hospital, Dublin, Ireland
Arch Neurol 64:1528-30. 2007..To describe a patient who presented with features suggestive of frontotemporal dementia (FTD) but with some atypical findings and antibodies to neuronal voltage-gated potassium channels (VGKC-Abs)...
Whole-body tremulousness: isolated generalized polymyoclonusAndrew McKeon
Department of Neurology, Gonda 8 South, Mayo Clinic, 200 First St SW, Rochester, MN 55902, USA
Arch Neurol 64:1318-22. 2007..Acquired generalized repetitive myoclonus may be mistaken for tremor. Distinguishing myoclonus has etiologic and therapeutic implications...
Unusual compulsive behaviors primarily related to dopamine agonist therapy in Parkinson's disease and multiple system atrophyAndrew McKeon
Department of Neurology, Mayo Clinic, 200 1st St SW, Rochester, MN 55905, USA
Parkinsonism Relat Disord 13:516-9. 2007....
Paraneoplastic encephalomyelopathies: pathology and mechanismsAndrew McKeon
Department of Laboratory Medicine and Pathology, Mayo Clinic, College of Medicine, Rochester, MN, 55905, USA
Acta Neuropathol 122:381-400. 2011..Here we describe in detail the neuropathological findings and pathophysiology of paraneoplastic CNS disorders with reference to antigen-specific serology and neurological and oncological contexts...
Purkinje cell cytoplasmic autoantibody type 1 accompaniments: the cerebellum and beyondAndrew McKeon
Department of Neurology, Mayo Clinic, Rochester, MN 55905, USA
Arch Neurol 68:1282-9. 2011..To investigate the full extent of Purkinje cell cytoplasmic autoantibody type 1 autoimmunity (classically associated with paraneoplastic cerebellar degeneration) from clinical, immunohistochemical, and neuropathological perspectives...
Neuronal voltage-gated potassium channel complex autoimmunity in childrenRadhika Dhamija
Department of Neurology, Mayo Clinic, Rochester, MN, USA
Pediatr Neurol 44:275-81. 2011..Currently 2.7% of pediatric sera evaluated for neurologic autoimmunity are positive for neuronal potassium channel complex-reactive immunoglobulin G. The frequency and full spectrum of neurologic accompaniments remains to be determined...
Autoimmune dementia: clinical course and predictors of immunotherapy responseEoin P Flanagan
Department of Neurology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
Mayo Clin Proc 85:881-97. 2010..To define the diagnostic characteristics and predictors of treatment response in patients with suspected autoimmune dementia...
Reversible extralimbic paraneoplastic encephalopathies with large abnormalities on magnetic resonance imagesAndrew McKeon
Department of Neurology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, USA
Arch Neurol 66:268-71. 2009..To describe reversible extralimbic paraneoplastic encephalopathies with large, lobar lesions on magnetic resonance imaging (MRI)...
Prediction of neuromyelitis optica attack severity by quantitation of complement-mediated injury to aquaporin-4-expressing cellsShannon R Hinson
Department of Laboratory Medicine and Pathology, Hilton 3 78D, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
Arch Neurol 66:1164-7. 2009..The NMO-IgG binds in vitro to the extracellular domain of AQP4, activates complement, and causes astrocyte lesioning...
Eliminating false-positive results in serum tests for neuromuscular autoimmunityMetha Apiwattanakul
Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
Muscle Nerve 41:702-4. 2010..05% and 1.7% for AchR and VGKC autoantibodies, respectively. Specificity assurance in radioimmunoprecipitation assays requires subtraction of values for 125I-ligand binding...
Psychiatric manifestations of voltage-gated potassium-channel complex autoimmunityKristin J Somers
Department of Psychiatry and Psychology, Mayo Clinic College of Medicine, Rochester, MN, USA
J Neuropsychiatry Clin Neurosci 23:425-33. 2011..Neuropsychiatric presentations were significantly associated with higher autoantibody values. Improvements were most evident in patients treated early, which emphasizes the need for early diagnosis and immunotherapy initiation...
Intractable vomiting as the initial presentation of neuromyelitis opticaMetha Apiwattanakul
Department of Laboratory Medicine and Pathology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
Ann Neurol 68:757-61. 2010..Our clinical, pathologic and neuroimaging observations suggest the aquaporin-4-rich area postrema may be a first point of attack in neuromyelitis optica...
Positron emission tomography-computed tomography in paraneoplastic neurologic disorders: systematic analysis and reviewAndrew McKeon
Department of Neurology, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
Arch Neurol 67:322-9. 2010..To evaluate the cancer detection rate of whole-body positron emission tomography-computed tomography (PET-CT) in a paraneoplastic neurologic context...
Diagnosis of neuromyelitis spectrum disorders: comparative sensitivities and specificities of immunohistochemical and immunoprecipitation assaysAndrew McKeon
Department of Neurology, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
Arch Neurol 66:1134-8. 2009....
Chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids (CLIPPERS)Sean J Pittock
Department of Neurology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, USA
Brain 133:2626-34. 2010..The T cell predominant inflammatory pathology in affected central nervous system lesions and the clinical and radiological response to immunosuppressive therapies is consistent with an immune-mediated process...
Extratemporal EEG and MRI findings in ANNA-1 (anti-Hu) encephalitisLeslie A Rudzinski
Department of Neurology, Mayo Clinic College of Medicine, 200 First St SW, Rochester, MN 55905, USA
Epilepsy Res 95:255-62. 2011..The study objectives were to measure the rate of extratemporal abnormalities, and to determine the relative value of MRI and EEG in an ANNA-1 encephalitis cohort...
Ganglionic acetylcholine receptor autoantibody: oncological, neurological, and serological accompanimentsAndrew McKeon
Department of Neurology, Mayo Clinic, Rochester, MN 55905, USA
Arch Neurol 66:735-41. 2009..To describe the clinical utility of the nicotinic ganglionic acetylcholine receptor (alpha3-AChR) autoantibody as a marker of neurological autoimmunity and cancer...
Coexistence of myasthenia gravis and serological markers of neurological autoimmunity in neuromyelitis opticaAndrew McKeon
Department of Neurology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
Muscle Nerve 39:87-90. 2009..0001. The coexistence of NMO and MG should be considered in atypical or refractory presentations of either disorder...
Sleep manifestations of voltage-gated potassium channel complex autoimmunityJason R Cornelius
Center for Sleep Medicine, College of Medicine, Mayo Clinic, 200 First St SW, Rochester, MN 55905, USA
Arch Neurol 68:733-8. 2011..To identify the spectrum of sleep disorders associated with autoantibodies reactive with voltage-gated potassium channel (VGKC) complexes...
Paraneoplastic jaw dystonia and laryngospasm with antineuronal nuclear autoantibody type 2 (anti-Ri)Sean J Pittock
Mayo Medical School College of Medicine, Mayo Clinic, Rochester, MN 55905, USA
Arch Neurol 67:1109-15. 2010..However, the neurologic spectrum of ANNA-2 autoimmunity is broader, includes a syndrome of jaw dystonia and laryngospasm, and can be accompanied by lung carcinoma...
Parkinsonism and dropped head: dystonia, myopathy or both?Rodolfo Savica
Department of Neurology, College of Medicine, Mayo Clinic, Rochester, MN 55905, USA
Parkinsonism Relat Disord 18:30-4. 2012..The substrate for DHS is controversial, with some concluding that the cause is myopathic and others, exclusively dystonic. We report our clinical series of DHS arising in the setting of parkinsonism...
Autoimmune encephalopathies and epilepsies in children and teenagersLily C Wong-Kisiel
Division of Child and Adolescent Neurology, Department of Neurology, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
Can J Neurol Sci 39:134-44. 2012..This review summarizes the clinical presentations and recommended evaluations and treatment of pediatric epileptic encephalopathy suspected to be of autoimmune etiology...
Heterogeneity of presentation and outcome in the Irish rapid-onset dystonia-parkinsonism kindredAndrew McKeon
Department of Neurology, Beaumont Hospital Dublin and Royal College of Surgeons in Ireland, Dublin, Ireland
Mov Disord 22:1325-7. 2007..The broad phenotypic spectrum of RDP described in the text and detailed in the video, should be considered when evaluating patients with dystonia...
Seizure versus syncopeAndrew McKeon
Department of Neurology, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin 9, Ireland
Lancet Neurol 5:171-80. 2006..Despite a careful and thorough approach to the patient with a "seizure versus syncope" problem, many will require repeated assessment before a diagnosis is made...
Azathioprine: tolerability, efficacy, and predictors of benefit in neuromyelitis opticaC Costanzi
Department of Neurology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
Neurology 77:659-66. 2011..To evaluate the efficacy, tolerability, optimal dosing, and monitoring of azathioprine in patients with neuromyelitis optica (NMO)...
Postanoxic delayed-onset cerebellar syndromeAndrew McKeon
J Neurol 254:1304-5. 2007
