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355 Possible Causes for Hyperreflexia, Myoclonic Jerking

  • Dementia

    Clinical examination revealed several elements of a frontal lobe dysfunction including apathy with motor impersistence, presence of primitive reflexes, generalized hyperreflexia[]

  • Angelman Syndrome

    In addition, there was improvement in the myoclonic jerks, sleep pattern, and developmental progress.[] Diminished muscle tone (hypotonia) of the trunk, increased muscle tone (hypertonia) of the arms and legs, and abnormally exaggerated or brisk reflex responses (hyperreflexia[] She was initially treated with vigabatrin which resulted in worsening of myoclonic jerks.[]

  • Hypocalcemia

    jerks In more severe cases of hypocalcemia, findings can include: -Laryngospasm and stridor -Tetany -Altered mental status -Apnea -Seizures -Hypotension -Decreased myocardial[] Severe hypocalcemia with serum calcium 7 mg/dL ( 1.75 mmol/L) may cause hyperreflexia, tetany, laryngospasm, or generalized seizures.[] Hypocalcemia: Typical findings in mild to moderate hypocalcemia can include: -Fatigue -Cramping -Weakness -Paresthesias, especially in the perioral area and distal extremities -Myoclonic[]

  • Acute Amphetamine Intoxication

    jerks Twitching Choreiform movements 3.[] Symptoms Manifestations of acute overdosage with amphetamines include restlessness, tremor, hyperreflexia, rapid respiration, confusion, assaultiveness, hallucinations, panic[] In patient [ 3 ] there was the presence of generalized hyperactivity, hypertonia and hyperreflexia.[]

  • Tetanus

    Tetanus is a life-threatening neurological syndrome characterised by tonic muscle spasms and hyperreflexia, caused by the exotoxin of Clostridium tetani , a gram-positive[]

  • Creutzfeldt Jakob Disease

    During the patient's hospital course, his clinical condition deteriorated with myoclonic jerks, fevers and severe encephalopathy.[] A neurological examination revealed mild word-finding difficulty, constructive disturbance, hyperreflexia in her jaw and lower limbs, and bilateral extensor plantar reflexes[] Myoclonic jerks and increased muscle tone were noticed 3 months after the onset.[]

  • Amyotrophic Lateral Sclerosis

    […] remains normal Physical exam neck ptosis (neck drop) due to neck extensor weakness manual muscle testing elicits muscle cramping upper motor neuron (UMN) signs spasticity hyperreflexia[] The upper motor signs include spasticity, hyperreflexia and weakness. The lower motor signs include amyotrophy, weakness and fasciculations.[] Muscle pain may be caused by clonus or hyperreflexia. Many patients complain of muscle cramps.[]

  • Early Infantile Epileptic Encephalopathy 28

    Seite 253 - Impulsive petit mal appears around puberty and is characterized by seizures with bilateral, single or repetitive, arrhythmic, irregular myoclonic jerks, predominantly[] Spasticity and hyperreflexia are often present but some newborn infants are hypotonic.[] .  Triad of  Polymorphic intractable seizure that are mainly tonic (80%), atonic (50%)and atypical absence seizures (70%), Myoclonic Jerks(11–28%).  Cognitive and behavioural[]

  • Neuroleptic Malignant Syndrome

    He developed marked rigidity, myoclonic jerks, and startle myoclonus. He was then sent for a brain MRI.[] However, NMS is characterised by 'lead-pipe' rigidity, whilst serotonin syndrome is characterised by hyperreflexia and clonus.[] Tremor PLUS hyperreflexia 5.[]

  • Mucolipidosis Type 4

    Random multifocal myoclonic jerks had diffuse EEG correlates [Figure 1] . Attenuation of visual evoked potentials was noted.[] […] abdominal wall muscles [ more ] 0010318 Corneal opacity 0007957 Developmental stagnation 0007281 Gait disturbance Abnormal gait Abnormal walk Impaired gait [ more ] 0001288 Hyperreflexia[] Figure 1: Electroencephalogram (a) axial myoclonic jerks with characteristic burst of posterior predominant generalized sharp and slow wave followed by a period of attenuation[]

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