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Thoracic outlet syndromes: Årsak

Innhold i artikkelen

Plexus brachialis

Forklaringen er i de fleste tilfeller at skalenusmuskulaturen er blitt unormalt stram. Det kan skyldes en nakkeskade som har medført skade på skalenusmuskelen som hovner opp og tar mer plass, eller det kan være medfødte trange forhold i området.

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Den trange åpningen fra brysthulen sammen med en eventuelt stram skalenusmuskel klemmer på nervepleksuset. En antatt hyppig medvirkende årsak kan være stress og anspent arbeidsstilling foran dataskjerm, eller mye arbeid over hodenivå - med påfølgende stramninger i skalenusmusklene.

Sammenklemte blodårer, i færre enn 5 prosent av tilfellene, skyldes oftere medfødte forandringer i området, f.eks. et ekstra halsribbein.

Dette dokumentet er basert på det profesjonelle dokumentet Thoracic outlet syndromes . Referanselisten for dette dokumentet vises nedenfor

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