MIASTENIYA (Myasthenia; yun. my[s] – mushak, astheneia – bequvvati), bemorii asabu mushakho, ki bo khastaholi va zafi mushakho padid meoyad. Muqarrar shudaast, ki sababi asosii bemori ikhtiloli autoimmunii vobasta ba bemorii gadudhoi dushokha va khalal yoftani intiqoli asabiyu mushakii simpati meboshad. Dar dunyo ba har 100 haz. naf. bemor 3 – 5 naf. ashkhosi giriftori M. duchor meoyad. Az yak oila chand naf. bemor shudanashon mumkin ast, vale tabiati irsi doshtani M. to hol malum nest.
Alomathoi bolinii M. gunogun meboshand. Beholi bisyor vaqt az mushakhoi berunii chashm, mushakhoi mimiki va mushakhoi khoidanu furu dodani gizo ogoz meyobad. Binobar in nishonai avvalini bemori ptoz, ahvali, dubini, ikhtiloli jovidan, furu burdan va nutq meboshand. Bo mururi taraqqii bemori zafi mushakhoi badan va dastu poy afzuda, bemor sakht khasta megardad. Atrofiyai mushakho ahyonan ba mushohida merasad. Dar vaqti homilagi, zodan, bemorihoi irsi, khastagi va g. ikhtiloli tahriki afzuda, mumkin ast boisi beharakatii bemor va khalal yoftani amaliyoti hayotan muhimi organizm – furudihi va nafaskashi gardand. Jarayoni M. khususan dar asnoi yakjoya bo omosi gadudi dushokha padid omadani on vaznin ast.
M.-ro bo istifoda az doruhoi gunogun – prozerin, kalimin, oksazil, kortikosteroidho, immunodepressantho va g. muolija mekunand. Bazan ba timektomiya (burida dur sokhtani gadudi dushokha) dast mezanand.
SH. F. Rajabaliev.