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Клинико-электромиографические критерии диагностики наследственных миотонических синдромов

Клинико-электромиографические критерии диагностики наследственных миотонических синдромов

Abstract

Наследственные миотонические синдромы (НМС) — группа генетически гетерогенных заболеваний ионных каналов хлора и натрия (каналопатии), с выраженным клиническим полиморфизмом и высокой распространенностью в популяции. Дифференциальная диагностика НМС в ранней стадии до настоящего времени составляет проблему для клиницистов. В работе предпринята по-пытка на основе клинико-электромиографического исследования 2 групп больных с врожденной миотонией Томсена и Беккера (n = 45) и с дистрофической миотонией 1-го типа (n = 39), верифицированных ДНК-анализом генов CLCN1 и DMPK, выработать информативные дифференцирующие критерии. Наряду с клиническими симптомами таковыми могут выступать величина де-кремента амплитуды М-ответа при ритмической стимуляции n. ulnaris и длительность миотонических разрядов при игольчатой электромиографии m. tibialis anterior.

Hereditary myotonic syndromes (HMS) are a group of genetically heterogeneous diseases of the chlorine and sodium ion channels (chan-nelopathies) with evident clinical polymorphism and high prevalence in the population. The differential diagnosis of early-stage NMS poses a challenge to clinicians to this day. The investigation has attempted to elaborate informative differentiating criteria on the basis of a clinical and electromyographic study of 2 groups of patients with hereditary Thomsen or Becker myotonia (n = 45) and myotonic dystrophy type 1 (n = 39) verified by DNA analysis of the CLCN1 and DMPK genes. Along with the clinical symptoms, there may be the value of M-response amplitude decrement in rhythmic stimulation of the n. ulnaris and the duration of myotonic discharges at pin electromyography of the m. tibialis anterior.

Keywords

ВРОЖДЕННАЯ МИОТОНИЯ ТОМСЕНА/БЕККЕРА, ДИСТРОФИЧЕСКАЯ МИОТОНИЯ 1-ГО ТИПА, СТИМУЛЯЦИОННАЯ И ИГОЛЬЧАТАЯ ЭЛЕКТРОМИОГРАФИЯ, МИОТОНИЧЕСКИЕ РАЗРЯДЫ, ДЕКРЕМЕНТ АМПЛИТУДЫ М-ОТВЕТА, ДИАГНОСТИКА, ДИФФЕРЕНЦИАЛЬНАЯ ДИАГНОСТИКА, МУТАЦИИ ГЕНОВ CLCN1 И DMPK, CONGENITAL THOMSEN/BECKER MYOTONIA

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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