scholarly journals Unusual Forehead Tremor in Four Patients with Essential Tremor

2012 ◽  
Vol 2012 ◽  
pp. 1-3
Author(s):  
Jordi Gascón-Bayarri ◽  
Jaume Campdelacreu ◽  
Màtil Calopa ◽  
Serge Jaumà ◽  
Laura Bau ◽  
...  
Keyword(s):  
Botulinum Toxin ◽  
Essential Tremor ◽  
The Other ◽  
Dystonic Tremor ◽  
Unilateral Involvement

Forehead tremor has only been reported in two patients with essential tremor, one with rhythmic tremor and the other with dystonic tremor. We report 4 new patients with essential tremor who present a 4–6 Hz frontal tremor registered by electromyography and unusual features like frontal tremor preceding limb tremor or unilateral involvement. Frontal tremor is present in some patients with essential tremor, sometimes preceding limb tremor. Treatment with botulinum toxin may be useful.

scholarly journals Quantitative Assessment of Head Tremor in Patients with Essential Tremor and Cervical Dystonia by Using Inertial Sensors

Sensors ◽  
2019 ◽  
Vol 19 (19) ◽  
pp. 4246 ◽  
Author(s):  
Lazar Berbakov ◽  
Čarna Jovanović ◽  
Marina Svetel ◽  
Jelena Vasiljević ◽  
Goran Dimić ◽  
...  
Keyword(s):  
Essential Tremor ◽  
Cervical Dystonia ◽  
Inertial Sensors ◽  
Signal Amplitude ◽  
Peak Frequency ◽  
Dystonic Tremor ◽  
Head Tremor ◽  
Different Types ◽  
The Mean ◽  
Remote Health

Tremor is most common among the movement disabilities that affect older people, having a prevalence rate of 4.6% in the population older than 65 years. Despite this, distinguishing different types of tremors is clinically challenging, often leading to misdiagnosis. However, due to advances in microelectronics and wireless communication, it is now possible to easily monitor tremor in hospitals and even in home environments. In this paper, we propose an architecture of a system for remote health-care and one possible implementation of such system focused on head tremor monitoring. In particular, the aim of the study presented here was to test new tools for differentiating essential tremor from dystonic tremor. To that aim, we propose a number of temporal and spectral features that are calculated from measured gyroscope signals, and identify those that provide optimal differentiation between two groups. The mean signal amplitude feature results in sensitivity = 0.8537 and specificity = 0.8039 in distinguishing patients having cervical dystonia with or without tremor. In addition, mean signal amplitude was shown to be significantly higher in patients with essential tremor than in patients with cervical dystonia, whereas the mean peak frequency is not different between two groups.

A Tremor with an Abnormal Posture

2016 ◽  
Author(s):  
Robertus M. A. de Bie ◽  
Susanne E. M. Ten Holter
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Deep Brain Stimulation ◽  
Essential Tremor ◽  
Brain Stimulation ◽  
Movement Disorders ◽  
Beta Blockers ◽  
Dystonic Tremor ◽  
Abnormal Posture ◽  
Deep Brain

Dystonic tremors are a commonly misdiagnosed group of primary tremor disorders, typically mistaken for Parkinson’s disease or essential tremor. Like most movement disorders, this is a clinical diagnosis, so the overlap in some features between all of these disorders can be confusing to less experienced and even more experienced physicians. A tremor in the presence of a dystonia is a dystonic tremor syndrome, regardless of the clinical features. Treatment of dystonic tremor can be challenging without the same gratifying response seen to levodopa in tremor associated with Parkinson’s disease or to beta-blockers and primidone in essential tremor. Deep-brain stimulation remains an option in the most disabling cases.

Long-term follow-up results of selective VIM-thalamotomy

1986 ◽  
Vol 65 (3) ◽  
pp. 296-302 ◽  
Author(s):  
Yoshishige Nagaseki ◽  
Tohru Shibazaki ◽  
Tatsuo Hirai ◽  
Yasuhiro Kawashima ◽  
Masafumi Hirato ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Essential Tremor ◽  
The Other ◽  
Content Type ◽  
Early Results ◽  
Initial Surgery ◽  
Long Term Follow Up

✓ The authors report the results of a long-term follow-up study of the effects of the physiologically defined selective VIM (nucleus ventralis intermedius)-thalamotomy on tremor of Parkinson's disease in 27 patients and essential tremor in 16 patients. The follow-up period ranged from 3.25 to 10 years (mean 6.58 years). In 43 patients a total of 50 operations (including four bilateral operations and three reoperations) were carried out. The early (2 to 4 weeks after surgery) and late effects on the tremors were determined clinically and electromyographically. Fourteen parkinsonian cases were treated with minimal lesions (about 40 cu mm). Their late results were very similar to the early results: in 10, the tremors were completely abolished, three had a slight residual tremor, and one underwent reoperation 3 months after the first surgery. Eleven essential tremor cases were treated with minimal lesions. Six of these tremors were completely abolished, four patients had slight residual tremors, and one patient with a recurrence underwent reoperation 2 years after the initial surgery. In these 23 successful operations with minimal lesions (excluding two cases with reoperation), the tremor was abolished without discernible long-lasting side effects. The other 23 operations on 16 patients with Parkinson's disease (including one reoperation) and on seven with essential tremor (one of whom also had a minimal lesion on the other side) involved relatively large lesions. In this group, the surgery was successful in almost every case. It was concluded that radiographically and physiologically monitored selective VIM-thalamotomy for parkinsonian and essential tremor is effective even when lesioning is minimal. Moreover, the beneficial effect is maintained over a long period of time.

scholarly journals Impact of Covid-19 on essential tremor and dystonic tremor: Experience of an Italian centre

2021 ◽  
Vol 429 ◽  
pp. 119437
Author(s):  
Sandy Cartella ◽  
Carmen Terranova ◽  
Ignazio Arena ◽  
Angelo Quartarone ◽  
Paolo Girlanda
Keyword(s):  
Essential Tremor ◽  
Dystonic Tremor

Tremors

2016 ◽  
Author(s):  
Alfonso Fasano ◽  
Günther Deuschl
Keyword(s):  
Movement Disorder ◽  
Essential Tremor ◽  
Involuntary Movement ◽  
The Body ◽  
Drug Induced ◽  
Parkinsonian Tremor ◽  
Dystonic Tremor ◽  
Physiologic Tremor ◽  
Disease Definition ◽  
Holmes Tremor

Tremor is the most common movement disorder and denotes a rhythmic and involuntary movement of one or several regions of the body. This review covers disease definition, essential tremor, enhanced physiologic tremor, parkinsonian tremor, dystonic tremor, orthostatic tremor, cerebellar tremor, Holmes tremor, neuropathic tremor, palatal tremor, drug-induced and toxic tremors, functional tremor, rare tremor syndromes, tremorlike conditions, and treatment of tremor. Figures show action tremor assessment, the central nervous system circuits of tremor, magnetic resonance imaging findings in specific tremor conditions, general management of tremor patients, an algorithm for the treatment of parkinsonian tremor, and an algorithm for the treatment of dystonic tremor and primary writing tremor. Tables list types of tremor according to the condition of activation, tremor conditions in newborns and during childhood, clinical features of the most common tremor syndromes, motor signs other than tremor and nonmotor features of essential tremor patients, Movement Disorder Society consensus criteria for the diagnosis of essential tremor, genetic and environmental causes of essential tremor, causes of enhanced physiologic tremor, drugs and toxins known to cause tremor, paroxysmal tremors, pseudorhythmic myoclonus in the differential diagnosis of tremor, and pharmacologic management of essential tremor. Key words: essential tremor, movement disorder, pathologic tremor, physiologic tremor, tremor This review contains 6 highly rendered figures, 7 videos, 11 tables, and 163 references.

The Aetiology and Management of Long-Lasting Sixth Nerve Palsy in Ophthalmoplegic Migraine

Cephalalgia ◽  
2007 ◽  
Vol 27 (3) ◽  
pp. 275-278 ◽  
Author(s):  
B Manzouri ◽  
A Sainani ◽  
GT Plant ◽  
JP Lee ◽  
J Sloper
Keyword(s):  
Botulinum Toxin ◽  
Nerve Palsy ◽  
Adult Patients ◽  
The Other ◽  
Medial Rectus ◽  
Sixth Nerve Palsy ◽  
Ophthalmoplegic Migraine ◽  
Squint Surgery ◽  
Sixth Nerve

The features and management of two adult patients with ophthalmoplegic migraine and longlasting sixth nerve palsies are described. Both had had previous shorter episodes of diplopia following migraine-like headaches. One recovered following an injection of botulinum toxin to the medial rectus of her affected eye 11 months after the onset of diplopia. The other patient had previously had surgery for a consecutive divergent squint and required further squint surgery to realign his eyes 1 year after the onset of his sixth nerve palsy. Both botulinum toxin and squint surgery may be useful in the management of longstanding sixth nerve palsy in patients with ophthalmoplegic migraine. The aetiology of ophthalmoplegic migraine is discussed.

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