生後1ヶ月の非常に早産の乳児における簡略化されたおよび拡張された肺超音波換気スコアと酸素測定値の関係:前向きな観察研究
Camilla Rigotti1, Emanuela Zannin2, Giulia Saudelli1
1Neonatal Intensive Care Unit, Fondazione IRCCS San Gerardo Dei Tintori, Via Pergolesi 33, Monza, MB, 20900, Italy.
European journal of pediatrics
|September 3, 2025
まとめ
簡略化された肺超音波 (LUS) のエアレーションスコアは最初には有効ですが,後部フィールドを含む拡張されたLUSスコアは,時間とともに早産児の酸素化とよりよく相関しています.
科学分野:
- 新生児医学
- 小児肺科
- 医療用イメージング
背景:
- 定量肺超音波 (LUS) のエアレーションスコアリングは,新生児の肺疾患の重症度を評価するための有効な方法である.
- 最初の24時間で簡素化されたLUSスコア (6つの前側フィールド) が適切であり,その後は拡張スコア (4つの後方フィールドを追加) が推奨されます.
研究 の 目的:
- 非常に早産の新生児の簡略化されたおよび拡張されたLUSエアレーションスコアと酸素化の相関性を評価する.
- この関係が時間とともに,妊娠年齢 (GA) によりどのように変化するかを決定する.
主な方法:
- 32週前までに生まれた新生児の観察研究
- LUSは出生後2日,7日,14日,28日に実施され,肺の前側と後部の領域を評価した.
- LUSスコア,酸素度,GAを分析するために使用されるスピアーマンの相関および多変量モデル.
主要な成果:
- 拡張されたLUSスコアは,簡素化されたスコアよりも酸素量との強い相関を示した (ρ=0. 69対0. 58).
- 最初の2日間はわずかな価値が加えられたが,その後は相関性が著しく改善された.
- GAとLUSの間の負の相互作用が観察されました.
結論:
- 簡略化されたLUSスコアは,最初の2日間の呼吸支援の必要性を十分に反映しています.
- 後部肺領域を含めると,特に2週目およびより成熟した乳児では,LUS-酸素化相関が強化されます.
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