陣發(fā)性運動誘發(fā)性運動障礙患者的臨床表現(xiàn)及基因診斷
[Abstract]:The clinical manifestations of 5 children with paroxysmal motor induced dyskinesia (PKD) were analyzed retrospectively, and gene mutations were analyzed by high-throughput sequencing and chromosome microarray techniques. The age of onset was 6 to 9 years old. All of them were induced by sudden movement, turning around, fright or mental stress, such as abnormal limb posture on one or both sides, hand and foot creep, facial muscle convulsion and abnormal body posture, etc. The frequency of attack was from 5 times per month to 2 times a day, and the duration of each attack was not more than 30 s. There was no abnormal EEG. 3 patients had a family history of similar seizures. High throughput sequencing revealed the presence of proline rich transmembrane protein 2 (PRRT2) mutations in the PKD pathogenicity gene in 4 patients, including c.649_650ins C (p.R217Pfs X8) heterozygosity in 2 cases and c.436CT (p.P146S) mutation in 1 case. One case of IVS2-1GA splicing site mutation, c.436CT and IVS2-1GA are not reported new mutation. One patient with negative gene test was detected by microarray analysis. The deletion of p11.2 region on chromosome 16 was found, and low dose carbamazepine was given to 0.55 M.5 patients. PKD is a rare paroxysmal disease of the nervous system. A variety of genetic analysis techniques for PRRT2 gene detection is helpful for diagnosis.
【作者單位】: 武漢大學(xué)人民醫(yī)院兒科;
【分類號】:R748
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