ビデオアシストされた胸腔外科手術の最適プログラムされた間歇性外周ボルス間隔:ロピヴァカイン-スーフェンタニルのバイアスコインアップダウン研究
Chengfei Feng1, Jijin Wen2, Guozhong Lai3
1Department of Anesthesiology, State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangdong Provincial Key Laboratory of Ophthalmology Visual Science, Guangdong Provincial Clinical Research Center for Ocular Disease, Guangzhou, 510060, People's Republic of China.
Drug design, development and therapy
|August 27, 2025
まとめ
ビデオアシスタント胸腔外科手術 (VATS) の間隔は約100分です. この間隔は90%の患者に有効な鎮痛効果をもたらし,追加的な疼痛緩和の必要性を最小限に抑えます.
科学分野:
- 麻酔科
- 胸部 外科
- 痛みの管理
背景:
- プログラムされた断続性外注 (PIEB) は,ビデオアシストド胸部手術 (VATS) の新興外注技術である.
- 最適なPIEBパラメータ設定,特に時間間隔は,VATSでの効果的な痛み管理のためにさらなる調査を必要とします.
- 手術後の鎮痛効果と患者の快適さを最大化するために,正確なPIEB間隔を設定することが重要です.
研究 の 目的:
- プログラムされた間歇性外注ボルス (PIEB) の最適な時間間隔を決定する.
- 10mLのロピヴァカイン0. 15%と0. 4μg/ mLのスフェンタニルをPIEB経由で投与して,VATSロベクトミーにおける有効性を評価する.
- 患者の90%で24時間以内に有効な鎮痛効果 (EI90) を達成する間隔を特定する.
主な方法:
- バイアスコインの上下設計を用いた二重盲検の配分試験が行われました.
- VATSのロベクトミーを受けた42人の患者は,固定されたPIEB用量を与えられ,その間隔は患者の反応に応じて調整された.
- 主なアウトカムは24時間以内に患者の制御による外周麻酔 (PCEA) や救助性鎮痛剤の欠如によって定義された有効な鎮痛でした.
主要な成果:
- この研究には40人の患者が参加し,同位体回帰分析により,患者の90% (EI90) の有効間隔は97. 4分と推定された.
- 約100分間のPIEB間隔は,効果的な鎮痛効果を達成するために最適であると特定されました.
- 術後低血圧の発生率は著しく変化し,90分間隔群 (64. 3%) と120分 (18. 8%) と150分 (11. 1%) との比較で最高でした.
結論:
- 0. 4μg/ mLのスフェンタニルと10 mLのロピヴァカインを投与したPIEBの最適な間隔は,VATSの切除で約100分です.
- この間隔は,ほとんどの患者にとって効果的な術後の鎮痛を保証します.
- 効果と低血圧のような潜在的な副作用のバランスをとるために,PIEB間隔を慎重に考慮する必要があります.
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