家族性高コレステロール血症でヘテロジゴスな小児における動脈インティマ・メディアの厚さ
Albert Wiegman1, Eric de Groot, Barbara A Hutten
1Department of Paediatrics, Academic Medical Centre, University of Amsterdam, Amsterdam, Netherlands.
Lancet (London, England)
|April 9, 2004
まとめ
家族性高コレステロール血症の子どもは,12歳から頸動脈内側介質の厚さが増加することを示しています. 子供の早期の脂質低下治療は,重度の心血管疾患を予防することができます.
科学分野:
- 心血管医学 心血管医学
- 小児内分泌学について
- 臨床脂質学とは
背景:
- 家族性高コレステロール血症 (FH) は,早期発症の重症冠動脈疾患につながる遺伝疾患です.
- FHの小児の脂質低下治療を開始するための最適な年齢は確立されていません.
- Carotid intima-media 厚さ (cIMT) は,サブクリニック性動脈硬化症のマーカーである.
研究 の 目的:
- FHのためにヘテロジゴスな子供における亜臨床性動脈硬化症の評価を,影響を受けていない兄弟姉妹と比較するために.
- この小児集団におけるcIMTの予測要因を特定する.
主な方法:
- Bモード超音波を用いて,FHを患った201人の子供と,影響を受けていない80人の兄弟姉妹 (8歳から18歳) の頸動脈内膜の厚さを測定した.
- cIMTの予測要因を決定するために,多変量分析が行われました.
主要な成果:
- 平均結合cIMTは,FHの子供 (0.494 mm) では,影響を受けていない兄弟 (0.472 mm) (p=0.002) よりも有意に大きかった.
- FHの子供では12歳から上昇したcIMTが観察されました.
- LDLコレステロール,年齢,性別は,cIMTの有意な独立した予測要因でした.
結論:
- FHの子どもは,動脈硬化症の初期の兆候を示し,12歳から増加したcIMTで検出できます.
- LDLコレステロールは,小児性FHにおけるcIMTの重要な決定因子です.
- FHの小児におけるスタチン治療の長期的な安全性と有効性を評価するために,さらなる臨床試験が必要である.
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