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臨床症状

Matin Soeizi1,2, Tovia Jacobs1, Zafarullah M Chaudhary1,2

  • 1NYU Grossman School of Medicine, New York, NY, USA.

Alzheimer's & dementia : the journal of the Alzheimer's Association
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PubMed
まとめ
この要約は機械生成です。

認知症における神経精神症状(NPS)は、アルツハイマー病型認知症(ADD)の病理と関連することが多い。しかし、レビー小体型認知症(LBD)、前頭側頭型認知症(FTD)、血管性認知症ではNPSが誤診されることがあり、正確な診断に影響を与える。

キーワード:
認知症神経精神症状診断精度レビー小体型認知症前頭側頭型認知症血管性認知症アルツハイマー病型認知症

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科学分野:

  • 神経学; 神経科学; 老年医学

背景:

  • 神経精神症状(NPS)は、認知症患者と介護者の生活の質を著しく低下させる。神経精神医学質問票(NPI-Q)で評価されるNPSの負担が大きいことは、レビー小体型認知症(LBD)およびアルツハイマー病型認知症(ADD)と関連している。NPSが臨床像を複雑にする場合、認知症サブタイプの正確な診断は特に困難である。

研究 の 目的:

  • 認知症の臨床診断と神経病理学的所見を比較すること。NPSが存在する場合の認知症サブタイプの診断精度を評価すること。NPSと特定の認知症病理との関連を調査すること。

主な方法:

  • 国立アルツハイマー病調整センター(NACC)のデータを用いた、後ろ向き縦断コホート研究。軽度認知障害または軽度の認知症段階で、妄想、幻覚、または興奮(NPI-Q)を有する参加者を含めた。統合失調症および特定不能の精神障害を有する参加者は除外した。RソフトウェアおよびANOVAを用いて、臨床診断と神経病理診断の一致を分析した。

主要な成果:

  • 参加者1,089名が含まれた。NPSの平均年齢は77.96歳であった。NPI-Q(神経精神医学質問票)では、880名が興奮、296名が妄想、184名が幻覚を報告した。ADD(アルツハイマー病型認知症)の診断一致率は94%と高かったが、FTD(前頭側頭型認知症)(36%)およびLBD(レビー小体型認知症)(48.2%)では低かった。FTD、LBD、血管性認知症の症例ではNPSの誤診が多く、しばしばADDに誤診された。

結論:

  • NPSは主にアルツハイマー病型認知症(ADD)の病理と関連している。確認されたLBD、FTD、または血管性認知症の病理を有する症例の50%以上で、NPSが他の診断に誤診されていた。行動障害を呈する認知症の診断精度を向上させるためには、さらなる研究が必要である。