Myasthenia gravis
Sist oppdatert: Sist revidert:
Sist revidert av:Terje Johannessen
Definisjon:
Autoimmun nevromuskulær sykdom der impulsoverføringen fra nerve til muskel er forstyrret
Forekomst:
Prevalens er ca. 10-15 per 100.000
Symptomer:
Fører til svakhet og økt trettbarhet i tverrstripet muskulatur
Funn:
Tester på trettbarhet er patologiske
Diagnostikk:
Antistoffer mot acetylkolinreseptorer (AChR) er positiv hos 85%. EMG er patologisk. Tensilontest er positiv
Behandling:
Avhenger av alvorlighetsgrad. Symptomlindrende behandling med pyridostigmin er førstevalg. Ev. kortikosteroider, ev. immunhemmende midler, ev. tymektomi, ev. rituksimab
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- Terje Johannessen, professor i allmennmedisin, Trondheim
Tidligere fagmedarbeidere
- Espen Dietrichs, professor og avdelingsoverlege, Universitetet i Oslo og Nevrologisk avdeling, Rikshospitalet, Oslo