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ニューラキシアル・アナルジェシアを投与されたヌリパール症の女性の自発性出産率に対する即時対遅延の効果: ランダム化臨床試験
Alison G Cahill1, Sindhu K Srinivas2, Alan T N Tita3,4
1Department of Obstetrics and Gynecology, School of Medicine, Washington University in St Louis, St Louis, Missouri.
JAMA
|October 11, 2018
まとめ
直接的または遅れた出産は,自発的な出産率に有意な影響を及ぼさなかった. しかし すぐ に 押し出す こと に よっ て,第 2 段階 の 出産 が 短縮 さ れ,出産 後 の 血流 と 胸膜 炎 の 発生 率 が 減少 し まし た.
科学分野:
- 産婦人科
- 妊婦と胎児の医療
- 臨床試験
背景:
- 出産の第2段階,特に神経神経痛薬を受けている女性にとって,推し始めの最適なタイミングは,出産の結果と母親/新生児の罹病率に及ぼす影響に関して不明のままです.
- 既存の臨床的慣行は様々で,第2段階の出産管理に関する証拠に基づいたガイドラインの必要性を強調しています.
研究 の 目的:
- 突発的または遅延的な押し付けが自発的な出産の速度に影響するかどうかを判断する.
- 手術後の出産,産後出血,新生児の罹患率など,妊産婦と新生児の合併症に対する推移の影響を評価する.
主な方法:
- プラグマティックなランダム化臨床試験で,2414人の妊婦が神経鎮痛療法を受けた.
- 参加者はランダムに分けられ 完全子宮頸部拡張時に即座に押すか 60分間延期して押すかのどちらかでした
- 主なアウトカムには,自発的陰道出産; 二次的なアウトカムには,出産期間,手術/帝王切開出産率,産後出血,膜炎,新生児の罹患率が含まれていた.
主要な成果:
- 群の間で自発性出産の割合は類似した (85. 9% 即発 vs 86. 5% 遅発;P > 0. 05).
- 直ちに押し出したグループは,著しく短い第2段階の出産を経験しました (平均差は -31.8分; P < .001).
- 直接的な押し付けは,小胞膜炎 (6. 7% 対 9. 1%; P = . 005) と産後出血 (2. 3% 対 4. 0%; P = . 03) の割合が低かった.
結論:
- 神経性鎮痛剤を投与している女性では, push 開始のタイミングは,自発的な出産の確率に影響しません.
- すぐ に 押す こと に よっ て,分娩 の 2 段階 を 加速 さ せる こと が でき,胎内膜炎 と 産後 出血 の 発生 率 を 減らす こと が でき ます.
- これらの発見は,出産率と妊婦の死亡率の両方を考慮して,推進戦略に関する情報に基づいた意思決定を支援します.
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