Made by DATEXIS (Data Science and Text-based Information Systems) at Beuth University of Applied Sciences Berlin
Deep Learning Technology: Sebastian Arnold, Betty van Aken, Paul Grundmann, Felix A. Gers and Alexander Löser. Learning Contextualized Document Representations for Healthcare Answer Retrieval. The Web Conference 2020 (WWW'20)
Funded by The Federal Ministry for Economic Affairs and Energy; Grant: 01MD19013D, Smart-MD Project, Digital Technologies
Step I : Decide the dominant type of movement disorder
Step II : Make differential diagnosis of the particular disorder
Step II: Confirm the diagnosis by lab tests
- Metabolic screening
- Microbiology
- Immunology
- CSF examination
- Genetics
- Imaging
- Neurophysiological tests
- Pharmacological tests
Akinetic mutism can be misdiagnosed as depression, delirium, or locked-in syndrome, all of which are common following a stroke. Patients with depression can experience apathy, slurring of speech, and body movements similar to akinetic mutism. Similarly to akinetic mutism, patients with locked-in syndrome experience paralysis and can only communicate with their eyes. Correct diagnosis is important to ensure proper treatment. A variety of treatments for akinetic mutism have been documented, but treatments vary between patients and cases.
Treatment depends upon the underlying disorder. Movement disorders have been known to be associated with a variety of autoimmune diseases.
As seen in the case of Elsie Nicks, the puncture or removal of a cyst causing akinetic mutism can relieve symptoms almost immediately. However, if the cyst fills up again, the symptoms can reappear.
Mobility issues associated with falls and freezing of gait have a devastating impact in the lives of PD patients. Fear of falling in itself can have an incapacitating effect in PD patients and can result in social seclusion leaving patients largely isolated leading to depression. Immobility can also lead to osteoporosis which in-turn facilitates future fracture development. This then becomes a vicious circle with falls leading to immobility and immobility facilitating future falls. Hip fractures from falls are the most common form of fracture among PD patients. Fractures increase treatment costs associated with health care expenditures in PD. Also, when gait is affected it often heralds the onset of Lewy body dementia.
Methylphenidate, commonly used to treat ADHD, has been used in conjunction with levodopa to treat hypokinesia in the short term. The two work together to increase dopamine levels in the striatum and prefrontal cortex. Methylphenidate mainly inhibits dopamine and noradrenaline reuptake by blocking presynaptic transporters, and levodopa increases the amount of dopamine, generally improving hypokinesic gait. Some patients, however, have adverse reactions of nausea and headache to the treatment and the long-term effects of the drug treatment still need to be assessed.
Once the reaction to dopaminergic drugs begins to fluctuate in Parkinson’s patients, deep brain stimulation (DBS) of the subthalamic nucleus and medial globus pallidus is often used to treat hypokinesia. DBS, like dopaminergic drugs, initially provides relief, but chronic use causes worse hypokinesia and freezing of gait. Lower-frequency DBS in irregular patterns has been shown to be more effective and less detrimental in treatment.
Posteroventral pallidotomy (PVP) is a specific kind of DBS that destroys a small part of the globus pallidus by scarring the neural tissue, reducing brain activity and therefore tremors and rigidity. PVP is suspected to recalibrate basal ganglia activity in the thalamocortical pathway. PVP in the dominant hemisphere has been reported to disrupt executive function verbal processing abilities, and bilateral PVP may disturb processes of focused attention.
Many akinesia patients also form a linguistic akinesia in which their ability to produce verbal movements mirrors their physical akinesia symptoms, especially after unsuccessful PVP. Patients are usually able to maintain normal levels of fluency, but often stop midsentence, unable to remember or produce a desired word. According to a study of Parkinson's patients with articulatory hypokinesia, subjects with faster rates of speech experienced more problems trying to produce conversational language than those who normally spoke at slower rates.
Two other types, primary ciliary dyskinesia and biliary dyskinesia, are caused by specific kinds of ineffective movement of the body, and are not movement disorders.
Spastic thrusting of hip area can occur in Sodemytopic Parkinson's.
Attention strategies:
By consciously paying more attention to walking and rehearsing each step before actually making it, PD patients have shown to improve their gait. Sometimes, a companion walking alongside reminds the patient to concentrate on gait or they create a visual cue to step over by putting a foot in front of the person with PD over which the person must step. This causes the patient to focus their attention on the stepping action, thus making this a voluntary action and hence bypassing the faulty basal ganglia pathway (which is responsible for involuntary actions like walking). Avoidance of dual tasks that require motor attention or cognitive attention has also been shown to normalize gait in the PD patients.
Exercise:
Physical therapy and exercise have been shown to have positive effects on gait parameters in PD patients.
Physiotherapists may help improve gait by creating training programs to lengthen a patient's stride length, broaden the base of support, improve the heel-toe gait pattern, straighten out a patient's posture, and increase arm swing patterns.
Research has shown gait training combining an overhead harness with walking on a treadmill has shown to improve both walking speed and stride length. The harness assists the patient in maintaining an upright posture by eliminating the need to use a mobility aid, a practice which normally promotes a forward flexed posture. It is believed the activation of the central pattern generator leads to the improvement in gait pattern.
Improving trunk flexibility, along with strengthening of the core muscles and lower extremities has been associated with increased balance and an improvement in gait pattern. Aerobic exercises such as tandem bicycling and water aerobics are also crucial in improving strength and overall balance. Due to PD’s progressive nature it is important to sustain an exercise routine to maintain its benefits.
Strategies such as using a vertical walking pole can also help to improve upright postural alignment. The therapist may also use tiles or footprints on the ground to improve foot placement and widen the patient's base of support. Creative visualization of walking with a more normalized gait pattern, and mentally rehearsing the desired movement has also shown to be effective.
The patient should also be challenged by walking on a variety of surfaces such as tile, carpet, grass, or foamed surfaces will also benefit the individual’s progress towards normalizing their gait pattern.
The diagnosis of frontal lobe disorder can be divided into the following three categories:
- Clinical history
Frontal lobe disorders may be recognized through a sudden and dramatic change in a person's personality, for example with loss of social awareness, disinhibition, emotional instability, irritability or impulsiveness. Alternatively the disorder may become apparent because of mood changes such as depression, anxiety or apathy.
- Examination
On mental state examination a person with frontal lobe damage may show speech problems, with reduced verbal fluency. Typically the person is lacking in insight and judgment, but does not have marked cognitive abnormalities or memory impairment (as measured for example by the mini-mental state examination). With more severe impairment there may be echolalia or mutism. Neurological examination may show primitive reflexes (also known as frontal release signs) such as the grasp reflex. Akinesia (lack of spontaneous movement) will be present in more severe and advanced cases.
- Further investigation
A range of neuropsychological tests are available for clarifying the nature and extent of frontal lobe dysfunction. For example, concept formation and ability to shift mental sets can be measured with the Wisconsin Card Sorting Test, planning can be assessed with the Mazes subtest of the WISC. Individuals with Pick's disease will show frontal cortical atrophy on MRIs. Frontal impairment due to head injuries, tumours or cerebrovascular disease will also be apparent on brain imaging.
Acute dystonia is a sustained muscle contraction that sometimes appears soon after administration of antipsychotic medications. Any muscle in the body may be affected, including the jaw, tongue, throat, arms, or legs. When the throat muscles are involved, this type of dystonia is called an acute laryngospasm and is a medical emergency because it can impair breathing. Older antipsychotics such as Haloperidol or Fluphenazine are more likely to cause acute dystonia than newer agents. Giving high doses of antipsychotics by injection also increases the risk of developing acute dystonia.
Methamphetamine, other amphetamines and dopaminergic stimulants including cocaine and pemoline can produce choreoathetoid dyskinesias; the prevalence, time-frame and prognosis are not well established. Amphetamines also cause a dramatic increase in choreoathetoid symptoms in patients with underlying chorea such as Sydenham’s, Huntington’s, and Lupus. Long-term use of amphetamines may increase the risk of Parkinson's disease (PD): in one retrospective study with over 40,000 participants it was concluded that amphetamine abusers generally had a 200% higher chance of developing PD versus those with no history of abuse; the risk was much higher in women, almost 400%. There remains some controversy as of 2017.
Levodopa-induced dyskinesia (LID) is evident in patients with Parkinson's disease who have been on levodopa () for prolonged periods of time. LID commonly first appears in the foot, on the most affected side of the body. There are three main types that can be classified on the basis of their course and clinical presentation following an oral dose of :
- Off-period dystonia – correlated to the akinesia that occurs before the full effect of sets in, when the plasma levels of are low. In general, it occurs as painful spasms in the foot. Patients respond to therapy.
- Diphasic dyskinesia – occurs when plasma L-DOPA levels are rising or falling. This form occurs primarily in the lower limbs (though they can happen elsewhere) and is usually dystonic (characterized by apparent rigidity within muscles or groups thereof) or (characterized by involuntary movement of muscles) and will not respond to dosage reductions.
- Peak-dose dyskinesia – the most common form of levodopa-induced dyskinesia; it correlates with the plateau plasma level. This type usually involves the upper limbs more (but could also affect the head, trunk and respiratory muscles), is choreic (of chorea), and less disabling. Patients will respond to reduction but may be accompanied by deterioration of parkinsonism. Peak-dose L-DOPA-induced dyskinesia has been suggested to be associated with cortical dysregulation of dopamine signaling.
Dysprosody, which may manifest as pseudo-foreign accent syndrome, refers to a disorder in which one or more of the prosodic functions are either compromised or eliminated completely.
Prosody refers to the variations in melody, intonation, pauses, stresses, intensity, vocal quality, and accents of speech. As a result, prosody has a wide array of functions, including expression on linguistic, attitudinal, pragmatic, affective and personal levels of speech. People diagnosed with dysprosody most commonly experience difficulties in pitch or timing control. Essentially, people diagnosed with the disease can comprehend language and vocalize what they intend to say, however, they are not able to control the way in which the words come out of their mouths. Since dysprosody is the rarest neurological speech disorder discovered, not much is conclusively known or understood about the disorder. The most obvious expression of dysprosody is when a person starts speaking in an accent which is not their own. Speaking in a foreign accent is only one type of dysprosody, as the disease can also manifest itself in other ways, such as changes in pitch, volume, and rhythm of speech. It is still very unclear as to how damage to the brain causes the disruption of prosodic function. The only form of effective treatment developed for dysprosody is speech therapy.
When studies of dysprosody first began, diagnosis involved an untrained ear determining impairments in the prosodic elements. However, over time and as dysprosody has been studied more closely, a more concrete method of diagnosis has been developed. One diagnosis technique is a rating scale, such as the Boston Diagnostic Aphasia Examination. The exam is a subjective rating system of volume (from loud to normal to soft), voice (from normal to whisper to hoarse), speech rate (from fast to normal to slow) and intonation which is rated on a scale from 1-7. One indicates no sentence intonation, four is given when sentence intonation is limited to abrupt pauses, and seven indicates normal intonation.
There are also more involved diagnostic evaluations for which contain both productive and comprehensive parts. In the productive part, the patient is asked to say sentences with certain instructions. In the comprehension section, the patient is asked to listen to sentences being said and then answer questions about how they were stated.
In order to determine linguistic dysprosody, a patient is asked to read sentences that can either be a statement or a question using both declarative and interrogative intonations. How the patient uses prosodic contours to distinguish between asking a question and saying a statement is recorded. During the comprehension section of the evaluation, a clinician reads simple sentences with either a declarative or interrogative intonation and the patient is asked to identify whether the sentence is a question or a statement. Evaluation of these two parts can determine if the patient has linguistic dysprosody.
Emotional dysprosody can be diagnosed by having a patient state a neutral sentence with different emotions, such as happy, sad, and angry. Patients with dysprosody will not be able to convey the emotions very well or differentiate their speech between the different emotions significantly. During the comprehension part, a clinician will say a sentence with specific emotional intonations and the patient must indicate the correct emotion. These techniques ultimately allow for the diagnosis of dysprosody and the degree of its severity in the patient.
In terms of treatment for frontal lobe disorder, general supportive care is given, also some level of supervision could be needed. The prognosis will depend on the cause of the disorder, of course. A possible complication is that individuals with severe injuries may be disabled, such that, a caregiver may be unrecognizable to the person.
Another aspect of treatment of frontal lobe disorder is speech therapy. This type of therapy might help individuals with symptoms that are associated with aphasia and dysarthria.
Research on prenatal diagnosis has shown that a diagnosis can be made prenatally in approximately 50% of fetuses presenting arthrogryposis. It could be found during routine ultrasound scanning showing a lack of mobility and abnormal position of the foetus. Nowadays there are more options for visualization of details and structures can be seen well, like the use of 4D ultrasound. In clinic a child can be diagnosed with arthrogryposis with physical examination, confirmed by ultrasound, , or muscle biopsy.
Accurate diagnosis of these Parkinson-plus syndromes is improved when precise diagnostic criteria are used. Since diagnosis of individual Parkinson-plus syndromes is difficult, the prognosis is often poor. Proper diagnosis of these neurodegenerative disorders is important as individual treatments vary depending on the condition. The nuclear medicine SPECT procedure using I-IBZM, is an effective tool in the establishment of the differential diagnosis between patients with PD and Parkinson-plus syndromes.
Parkinson-plus syndromes are usually more rapidly progressive and less likely to respond to antiparkinsonian medication than PD. However, the additional features of the diseases may respond to medications not used in PD.
Current therapy for Parkinson-plus syndromes is centered around a multidisciplinary treatment of symptoms.
These disorders have been linked to pesticide exposure.
70-80% of the cases of the most severe forms of arthrogryposis are caused by neurological abnormalities, which can be either genetic or environmental.
The underlying aetiology and pathogenesis of congenital contractures, particularly arthrogryposis and the mechanism of the mutations remains an active area of investigation. Because identifying these factors could help to develop treatment and congenital finding of arthrogryposis.
Surgery may be necessary to address the congenital deformities frequently occurring in conjunction with arthrogryposis. Surgery on feet, knees, hips, elbows and wrists may also be useful if more range of motion is needed after therapy has achieved maximum results. In some cases, tendon transfers can improve function. Congenital deformities of the feet, hips and spine may require surgical correction at or about one year of age.
Overall prognosis for children with amyoplasia is good. Intensive therapies throughout developing years include physical therapy, occupational therapy and multiple orthopedic procedures. Most children require therapy for years, but almost 2/3 are eventually able to walk, with or without braces, and attend school.
Mäkelä-Bengs et al. (1997,1998) performed a genome-wide screening and linkage analysis and assigned the LCCS locus to a defined region of 9q34.
LCCS1 belongs to Finnish heritage of diseases and cases have been confirmed until now (2009) only in Finland. The prevalence is 1 in 25000 births. The carrier frequency is 1% in whole Finland and 2% in North-Eastern part of Finland where the birthplaces of ancestors of affected individual show clustering.
Despite the grave initial presentation in some of the patients, most of the patients survive the initial acute event, with a very low rate of in-hospital mortality or complications. Once a patient has recovered from the acute stage of the syndrome, they can expect a favorable outcome and the long-term prognosis is excellent. Even when ventricular systolic function is heavily compromised at presentation, it typically improves within the first few days and normalises within the first few months. Although infrequent, recurrence of the syndrome has been reported and seems to be associated with the nature of the trigger.
For people with cardiogenic shock, medical treatment is based on whether a left ventricular outflow tract (LVOT) obstruction is present. Therefore, early echocardiography is necessary to determine proper management. For those with obstructed LVOTs inotropic agents should not be used, but instead should be managed like patients with hypertrophic cardiomyopathy, (e.g. phenylephrine and fluid resuscitation). For cases in which the LVOT is not obstructed, inotropic therapy (e.g. dobutamine and dopamine) may be used, but with the consideration that takotsubo is caused by excess catecholamines.
Furthermore, mechanical support with an intra-aortic balloon pump (IABP) is well-established as supportive treatment.
Chest X-rays are frequently used to aid in the diagnosis of CHF. In a person who is compensated, this may show cardiomegaly (visible enlargement of the heart), quantified as the cardiothoracic ratio (proportion of the heart size to the chest). In left ventricular failure, there may be evidence of vascular redistribution ("upper lobe blood diversion" or "cephalization"), Kerley lines, cuffing of the areas around the bronchi, and interstitial edema. Ultrasound of the lung may also be able to detect Kerley lines.