Påvisning av Parkinsons sykdom
Parkinsons sykdom er en klinisk diagnose som kan stilles på grunnlag av sykehistorien og funn ved legeundersøkelsen. Men ofte er det hensiktsmessig med både tilleggsundersøkelser og bildediagnostikk for å utrede alternative årsaker til parkinsonisme.
Sist oppdatert:
4. juli 2023
Tidlig i sykdomsforløpet kan det ofte være vanskelig å påvise Parkinsons sykdom. Symptomene er gjerne vage, og de kommer og går på en uforutsigbar måte. Ofte blir de tolket som aldersrelaterte problemer i begynnelsen.
Det er heller ingen blodprøver eller bildeundersøkelser, for eksempel CT eller MR, som kan påvise sykdommen.
På grunn av dette kan symptomene tidlig i forløpet mistolkes, og pasienten kan få stilt feil diagnose. Etter hvert som sykdommen skrider frem og symptomene blir mer karakteristiske, blir det lettere for legen å stille diagnosen Parkinsons sykdom.
Kriteriene for å stille diagnosen er symptomer og tegn som er typiske for Parkinsons sykdom:
- Hviletremor (skjelving). Typisk er skjelvinger i hånden med 4-6 rykninger per minutt, mest uttalt i hvile.
- Rigiditet (stivhet) i kroppen. Dette er ofte mest tydelig i armer og hender.
- Brady-/akinesi - som betyr vansker med å starte og gjennomføre aktiviteter.
- Balanseforstyrrelser.
I begynnelsen av sykdommen ser man at symptomene ofte har litt forskjellige preg på høyre eller venstre side (asymmetri). Ved en undersøkelse på legekontoret gjør legen gjerne forskjellige tester for å vurdere nervesystemet ditt.
I Norge er det anbefalt at pasienter med mulig Parkinsons sykdom skal henvises til nevrolog for å få stilt diagnosen. Etter at parkinsonisme er påvist, bør det vurderes alternative årsaker til symptomene.
En del av tilleggsundersøkelsene vil allmennlegen kunne utføre. Det dreier seg om forskjellige blodprøver, eventuelt måling av stående og sittende blodtrykk. Allmennlegen kan også henvise til CT- eller MR-undersøkelse av hjernen for å utelukke eventuelle andre årsaker til symptomene. Noen undersøkelser vil bestilles av eller utføres hos spesialist.
Når undersøkelsene for å utrede alternative årsaker er gjort, bør det anvendes standardiserte kliniske diagnosekriterier. Det finnes støttende kriterier og en rekke kriterier som gjør diagnosen Parkinsons sykdom mindre sannsynlig.
Ofte vil legen be deg forsøke en medisin kalt levodopa, som brukes i behandlingen av Parkinsons sykdom. God effekt av denne behandlingen er for eksempel et støttende diagnosekriterium.
Diagnosen Parkinsons sykdom stilles av legen etter en helhetsvurdering der både sykehistorien, kliniske funn, resultater av eventuelle undersøkelser, samt diagnosekriteriene er tatt i betraktning.
Animasjon om Parkinsons sykdom
Dette dokumentet er basert på det profesjonelle dokumentet Parkinsons sykdom (PS) . Referanselisten for dette dokumentet vises nedenfor
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