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Quantifying Infra-slow Dynamics of Spectral Power and Heart Rate in Sleeping Mice
Published on: August 2, 2017
心拍の変動性分析による阻害性睡眠無呼吸症候群のスクリーニング
F Roche1, J M Gaspoz, I Court-Fortune
1Service d'Exploration Fonctionnelle CardioRespiratoire, CHU Nord, Faculté de Médecine Jacques Lisfranc, Université Jean Monnet, Saint-Etienne, France. Frederic.Roche@univ-st-etienne.fr
Circulation
|September 29, 1999
まとめ
心拍数変動 (HRV) 分析,特に昼間と夜間の値の違い (Delta[D/N]) は,阻害性睡眠呼吸不全症候群 (OSAS) の検出に有望であることが示されています. この方法は,患者を正確にスクリーニングし,OSASのリスクが最も高い患者を特定することができます.
科学分野:
- 心臓病学 心臓病学
- スリープ・メディシン (睡眠医学)
- バイオメディカルエンジニアリング
背景:
- 夜間の心拍数変動 (HRV) は,睡眠に関連する呼吸障害で変化します.
- 阻害性睡眠無呼吸症候群 (OSAS) のためのHRVの診断能力は,体系的な評価を必要とします.
研究 の 目的:
- OSASを検出するためのHRVパラメータの識別力を評価する.
- 独立した患者コホートでの発見を検証する.
主な方法:
- 2つの患者グループ (G1とG2) からHRVデータを収集しました.
- 日間,夜間,デルタ[D/N]期間の時間領域 HRV 変数 (SDNN,SDNN インデックス,r-MSSD,SDANN) を計算した.
- G1.の分析のために利用された受信機操作特性 (ROC) 曲線とロジスティック回帰.
- 分類と回帰ツリーメソドロジーを用いてG2で検証された結果.
主要な成果:
- デルタ[D/N]SDNN指数とデルタ[D/N]r-MSSDは,G1におけるOSASの有意な独立した予測因子であった (ORはそれぞれ8.22と2.86).
- 分類と回帰ツリー解析は,G1.のデルタ[D/N]SDNN指数とデルタ[D/N]SDNNに対する高い感度 (89.7%) と特異性 (98.1%) を示した.
- G2での検証は,これらのHRVパラメータに対する高感度 (83%) と高特異性 (96.5%) を確認した.
結論:
- タイムドメインのHRV分析,特にデルタ[D/N]メトリックは,疑われるOSASの正確な費用対効果の高いスクリーニング方法を提供します.
- このアプローチは,高リスクの個人を対象に資源を優先させるのに役立ちます.
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