Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0036572 (seizures)
 80,221 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A 56-year-old man with refractory bitemporal epilepsy was monitored in the Epilepsy Monitoring Unit (EMU). In a video-EEG captured seizure, brief oroalimentary automatisms were followed by increased inspiratory effort, accompanied by prominent, visible tracheal movements and audible inspiratory stridor. The patient's oxygen saturation rapidly declined to 62%; persistent severe hypoxemia ended with spontaneous effective respiration commencing at seizure end. Subsequent seizures necessitated intensive care unit admission for respiratory distress, and ventilator support. This case suggests that ictal laryngospasm, a rare seizure manifestation, may represent another potential mechanism of sudden unexpected death in epilepsy (SUDEP). [Published with video sequence on www.epilepticdisorders.com].
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PMID:Ictal laryngospasm monitored by video-EEG and polygraphy: a potential SUDEP mechanism. 2962 11

Parathyroid hormone (PTH) is one of the major hormones that regulates serum calcium. Hypoparathyroidism occurs when PTH secretion is insufficient. The main symptoms of hypoparathyroidism are the result of low blood calcium levels, hypocalcemia, which interferes with normal muscle contraction and nerve conduction. As a result, people with hypoparathyroidism can experience paresthesia, an unpleasant tingling sensation around the mouth and in the hands and feet, as well as muscle cramps and severe spasms known as "tetany" that affect the hands and feet. Many also report a number of other subjective symptoms. Hypocalcemia can be the cause of medical emergencies, for example seizures, severe irregularities in the normal heart beat, as well as laryngospasm, stridor, bronchospasm, and wheezing.
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PMID:Clinical Presentation of Hypoparathyroidism. 3064 20

Infants suffering from life-threatening apnea, stridor, cyanosis, and increased muscle tone may often be misdiagnosed with infantile seizures and inappropriately treated because of lack and delay in genetic diagnosis. Here, we report a patient with increased muscle tone after birth and hypertonic attacks with life-threatening apnea but no epileptiform patterns in EEG recordings. We identified novel compound heterozygous variants in SLC6A5 (NM_004211.4:c.[1429T > C];[1430delC]) by trio whole-exome sequencing, containing a base deletion inherited by the asymptomatic mother leading to a frameshift (c.1430delC, p.Ser477PhefsTer9) and a de novo base exchange leading to an amino acid change (c.1429T > C, p.Ser477Pro). To date, there are four known disease-associated genes for primary hyperekplexia, all of which are involved in the functioning of glycinergic synapses. SLC6A5 encodes the sodium- and chloride-dependent glycine transporter 2 (GlyT2), which recaptures glycine, a major inhibitory transmitter in the brainstem and spinal cord. The diagnosis altered the patient's medical care to his benefit because SLC6A5 mutations with rather benign courses of hyperekplexia may be spared of needless pharmacotherapy. Symptoms eventually decreased in frequency until about once in 2 mo at 2 yr age. We present the first report of halting hyperekplexia episodes by maternal soothing in multiple instances. We highlight the importance of clarifying the genetic diagnosis by rapid next-generation sequencing techniques in this group of infantile apneic attacks with hyperekplexia due to the broad differential diagnoses.
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PMID:Novel mutations in SLC6A5 with benign course in hyperekplexia. 3160 77

Implantation of a vagus nerve stimulator (VNS) can be an effective treatment for medically refractory seizures. Laryngeal side effects from a VNS can include hoarseness, cough, and shortness of breath. This report highlights a 5-year-old female who presented with stridor in the setting of acquired laryngomalacia, global developmental delay, and a VNS device. The case demonstrates that a VNS can exacerbate the symptoms of acquired laryngomalacia and that close monitoring of laryngeal side effects is crucial to optimizing care in this population. Laryngoscope, 2020.
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PMID:Stridor Related to Vagus Nerve Stimulator: A Case Report. 3300 23


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