原因不明の突然死:生存する親戚における心臓学および遺伝学的検査の遺伝性と診断結果
Hanno L Tan1, Nynke Hofman, Irene M van Langen
1Department of Cardiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Circulation
|July 7, 2005
まとめ
若い突然の原因不明死 (SUD) の犠牲者の親戚を調査すると,家族の40%で遺伝性心疾患を特定しました. この戦略は,前症候のキャリアを効果的に暴露し,早期診断と致死性不律症の予防に役立ちます.
科学分野:
- 心臓病学 心臓病学
- 遺伝学 遺伝学とは
- 法医学は,法医医学である.
背景:
- 若い人の突然の死はしばしば説明がつかないもので,しばしば致命的な心室不律症によるものです.
- 遺伝性心疾患は,突然の原因不明死 (SUD) の潜在的な原因です.
- SUD被害者の親戚の評価は,基礎となる遺伝疾患と症状前のキャリアを特定することができます.
研究 の 目的:
- SUDの若い被害者の親族における心臓学および遺伝学的評価の診断成果を決定する.
- SUDの家族における遺伝性心疾患の有病率を特定する.
- 特定の診断戦略の有効性を評価する.
主な方法:
- 40歳以下のSUD被害者が少なくとも1人いる43の家族を調査した.
- 遺族は,休息/運動時の心電図とドップラー心電図を受けた.
- 診断の確認のために分子遺伝分析を使用した.
主要な成果:
- 遺伝性疾患は43の家族のうち17の家族 (40%) で特定されました.
- 主要な電気疾患 (例えば,長QT症候群,ブルガダ症候群) と心筋疾患が発見されました.
- 151人の症状前の病原体 (家族あたり8.9人) が特定され,EKGで高い診断率を示した.
結論:
- 若いSUD被害者の家族のスクリーニングは,40%の高い診断率を生み出します.
- 複数の親戚を検査することや,日常的な心電図などの簡単な手順は,効果的な診断戦略です.
- 分子遺伝学は,診断のための強力な支持的証拠を提供します.
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