Napsi

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Synonym(s)

Nail psoriasis severity index

Definition
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Acronym for "Nail Psoriais Severity Index! This is a clinical score that can be used to qualify and quantify psoriatic nail involvement.

Classification
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Acronym for "Nail Psoriais Severity Index". The score was introduced to objectify and monitor psoriatic nail involvement. The following parameters are included in the NAPSI:
  • Nail matrix:
    • Dimpled nails
    • Leukonychie
    • Red spots in the lunula
    • Crumb nail.
  • Nail bed:
    • Onycholysis
    • Subungual hyperkeratoses
    • Oil stains
    • Hemorrhages.
Quantification is based on a point system (0 = not present; 1-4 = present in one or up to 4 quadrants).

Note(s)
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Alternative scores are NPQ10 (Nail Psoriasis Quality of Life, to assess the impact of nail psoriasis on an individual's quality of life) and NAPPA (Nail Assessment in Psoriasis and Psoriasic Arthritis).

Literature
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  1. Rich P et al (2003) Nail psoriasis severity index: a useful tool for evaluation of nail psoriasis. A Am Acad Dermatol 49: 2006-2012

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Last updated on: 29.10.2020