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Updated: Jun 22, 2026
08:02
Isolation of Pulmonary Artery Smooth Muscle Cells from Neonatal Mice
Published on: October 20, 2013
新生児の持続性肺高血圧における窒素酸化物を吸入する
J D Roberts1, D M Polaner, P Lang
1Department of Anesthesia, Massachusetts General Hospital, Boston 02114.
Lancet (London, England)
|October 3, 1992
まとめ
吸入された酸化窒素 (NO) は,新生児の持続性肺高血圧 (PPHN) の乳児の酸素化を急速に改善しました. この治療は安全で,血圧やメタヘモグロビンレベルに悪影響を示さなかった.
科学分野:
- 新生児医学 新生児医学
- ペディアトリック・カルディオロジー
- 呼吸器生理学 呼吸器生理学について
背景:
- 新生児の持続性肺高血圧 (PPHN) は,肺血管抵抗性の上昇によって特徴づけられる重大な状態です.
- 酸化窒素 (NO) は,成人および動物における肺血管拡張剤として知られていますが,PPHNの新生児に対するその効果については,さらなる調査が必要です.
- 低酸素症はPPHNの主要な合併症であり,効果的な治療的介入を必要とします.
研究 の 目的:
- PPHNの乳児における全身の酸素化を改善するために,吸入された酸化窒素 (NO) の有効性と安全性を評価する.
- この患者集団における全身血圧とメタヘモグロビンレベルに対する,吸入されたNOの影響を評価する.
主な方法:
- PPHNと診断された6人の乳児は,吸入NOを最大100万分の80分の濃度 (ppmv) で吸入酸素分数 (FiO2) 0.9で最大30分間投与しました.
- 系統的酸素は,先導脈と後導脈脈酸素測定 (SpO2) と動脈の酸素張力によって監視されました.
- 安全性を評価するために,全身血圧とメタヘモグロビン濃度が注意深く監視されました.
主要な成果:
- 吸入によるNO投与は,治療を受けたすべての乳児において,先導体 SpO2 の急速かつ有意な増加をもたらした.
- 6人の乳児のうち5人の乳児は,経口後のSpO2と酸素の緊張の改善を示し,全身の酸素供給が強化されたことを示した.
- 治療期間中に全身性低血圧やメタヘモグロビン濃度の上昇の症例は観察されず,好ましい安全性プロファイルを示唆しています.
結論:
- 低濃度の吸入窒素酸化物 (NO) は,PPHNに罹患している乳児の低酸素症を逆転させるための効果的な治療戦略です.
- 吸入されたNOは,PPHNを持つ新生児において有望な安全性プロファイルを示しており,有意な有害な血液動力学または血液学的影響はありません.
- これらの発見は,吸入NOをPPHNの管理における貴重なツールとして使用し,酸素化と潜在的に臨床的結果を改善することを支持しています.
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