buttonholing


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buttonholing

Medspeak
A popular term for a clinical finding in cutaneous neurofibromatosis, in which compressed tumours seem to “pop” through openings in the deep dermis in a button-like fashion.
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Buttonholing is the insertion of a needle into a fistula, for haemodialysis treatment, at exactly the same site, angle and depth every cannulation.
Comprehensive fistula assessment, skin preparation, attention to scab removal and using a tourniquet constitute the key activities required to achieve successful buttonholing.
Buttonhole cannulation principles

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