Hand and foot deformities, known as "striatal deformities", and other musculoskeletal abnormalities such as dropped head, bent spine, camptocormia, scoliosis and Pisa syndrome, are poorly understood and often misdiagnosed features of Parkinson's disease and other parkinsonian syndromes. These deformities share some similarities with known rheumatologic conditions and can be wrongly diagnosed as rheumatoid arthritis, osteoarthritis, psoriatic arthritis, Dupuytren's contracture, trigger finger, or other rheumatologic or orthopedic conditions. Neurologists, rheumatologists, and other physicians must be familiar with these deformities to prevent misdiagnosis and unnecessary diagnostic tests, and to recommend appropriate treatment options.
View Article and Find Full Text PDFRestless legs syndrome (RLS) is a chronic neurological disorder that interferes with rest and sleep. It has a wide spectrum of symptom severity, and treatment is started when symptoms become bothersome. Dopamine agonists and calcium channel apha-2-delta antagonists (gabapentin, gabapentin enacarbil and pregabalin) are first-line treatments; calcium channel alpha-2-deltas are preferred over dopamine agonists because they give less augmentation, a condition with symptom onset earlier in the day and intensification of RLS symptoms.
View Article and Find Full Text PDFTransient ptosis is a known complication of botulinum toxin (BoNT) injection due to inadvertent migration of toxin into the levator palpebrae superioris muscle. Currently there is no treatment available for BoNT induced ptosis. Apraclonidine hydrochloride is a topical ophthalmic solution with selective alpha-2 and weak alpha-1 receptor agonist activity that has the ability to elevate the eye lid.
View Article and Find Full Text PDFObjective: To describe improvement in blepharospasm with apraclonidine.
Background: Blepharospasm is a focal dystonia involving chiefly the orbicularis oculi and periocular muscles resulting in involuntary sustained eyelid closure. Botulinum toxin injection is the mainstay of treatment with meaningful improvement in over 85% of patients, but the effects often wear off within 3-4months.
Nausea and vomiting are a frequent accompaniment of migraine and anti-nausea medications are frequently used in its management. The majority of anti-nausea medications that are used in migraine are dopamine receptor blocking agents and therefore have the potential to cause drug-induced movement disorders. This article explores the risk of such drug-induced movement disorders in migraineurs who were treated with these medications.
View Article and Find Full Text PDFDopa-responsive dystonia (DRD) encompasses a group of clinically and genetically heterogeneous disorders that typically manifest as limb-onset, diurnally fluctuating dystonia and exhibit a robust and sustained response to levodopa treatment. Autosomal dominant GTP cyclohydrolase 1 deficiency, also known as Segawa disease, is the most common and best-characterized condition that manifests as DRD, but a similar presentation can be seen with genetic abnormalities that lead to deficiencies in tyrosine hydroxylase, sepiapterin reductase or other enzymes that are involved in the biosynthesis of dopamine. In rare cases, DRD can result from conditions that do not affect the biosynthesis of dopamine; single case reports have shown that DRD can be a manifestation of hereditary spastic paraplegia type 11, spinocerebellar ataxia type 3 and ataxia telangiectasia.
View Article and Find Full Text PDFRestless legs syndrome (RLS) is a circadian disorder of sensory-motor integration that may be related to genetically determined dysregulation of iron transport across the blood-brain barrier. Dopamine agonists (DAs) have been considered the first-line therapy, but with the growing appreciation of problems associated with long-term treatment, particularly augmentation and impulse control disorder, alpha-2-delta drugs, such as gabapentin, are now considered the first line of treatment in patients with troublesome RLS. Opioids can be considered as an alternative therapy, particularly in patients with DA-related augmentation.
View Article and Find Full Text PDFCatatonia is a complex neuropsychiatric syndrome characterised by a broad range of motor, speech and behavioural abnormalities. 'Waxy flexibility', 'posturing' and 'catalepsy' are among the well-recognised motor abnormalities seen in catatonia. However, there are many other motor abnormalities associated with catatonia.
View Article and Find Full Text PDFObjectives: Haloperidol and pimozide are the only drugs currently approved by the U.S. Food and Drug Administration for treatment of Tourette syndrome (TS), but their potential side effects, which include tardive dyskinesia (TD), limit their use.
View Article and Find Full Text PDFWe describe the first detailed histological description of an excised calcified Taenia solium granuloma from a patient who developed recurrent seizures associated with perilesional edema surrounding a calcified cysticercus (PEC). The capsule, around a degenerated cysticercus, contained marked mononuclear infiltrates that extended to adjacent brain, which showed marked astrocytosis, microgliosis, and inflammatory perivascular infiltrates. The presence of large numbers of mononuclear cells supports an inflammatory cause of PEC.
View Article and Find Full Text PDFUnlabelled: To define the clinical and radiological features of patients with the combination of hemidystonia (HD) and hemiatrophy (HA), the HD-HA syndrome. HD is a very disabling neurological condition that is rarely associated with HA of the affected body part, similar to the hemiparkinsonism-hemiatrophy syndrome.
Method: We reviewed the medical records of 26 patients with the HD-HA syndrome and the data was entered into a database and analyzed.
Objective: To characterize the clinical and radiologic features of hemiparkinsonism-hemiatrophy syndrome (HPHA).
Methods: Medical records of patients with evidence of unilateral parkinsonism and ipsilateral body atrophy, evaluated at the Baylor College of Medicine Movement Disorders Clinic, were reviewed.
Results: The mean age at onset of the 30 patients who satisfied the criteria was 44.
Paroxysmal kinesigenic dyskinesia (PKD) is a rare disorder characterised by brief and frequent attacks of abnormal involuntary movements induced by sudden movement. This disorder has not been reported previously in Sri Lanka. We studied six patients with respect to clinical presentation, aetiology, family history and response to treatment, and describe the Sri Lankan patterns of this illness.
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