Optimal Inspiratory Pressure for Facemask Pressure-controlled Ventilation in Children
Optimal Inspiratory Pressure for Facemask Pressure-controlled Ventilation in Children: Study Using Detection of Gastric Insufflation Using Ultrasonography of the Antrum and Epigastric Auscultation
The purpose of this study is to find an optimal inspiratory pressure to provide adequate tidal volume and prevent gastric insufflation in pediatric patients.
The children under 5 years old are randomly assigned to muscle relaxation group and non-relaxation group. For muscle relaxation group, routine anesthesia induction is performed with muscle relaxant and mask ventilation is started by pressure-controlled mechanical ventilation. Gastric auscultation and abdominal ultrasonography are performed simultaneously during mask ventilation to detect inflow of air. Initial inspiratory airway pressure is 10 cmH2O and increased gradually by 2 cmH2O until gastric insufflation is detected by either of two methods. Tracheal intubation is done after detection of gas.
For non-relaxation group, mask ventilation is performed in a same manner, without muscle relaxant. After detection of gas by any of the two methods, rocuronium 0.6 mg/kg is administered and tracheal intubation is performed.
調査の概要
詳細な説明
The purpose of this study is to find an optimal inspiratory pressure to provide adequate tidal volume and prevent gastric insufflation in pediatric patients.
The children under 5 years old are randomly assigned to muscle relaxation group and non-relaxation group. Stratum was constructed based on age and randomization scheme was performed separately within each stratum. Block randomization was done to ensure balance of the age groups.
For muscle relaxation group, routine anesthesia induction is performed with muscle relaxant and mask ventilation is started by pressure-controlled mechanical ventilation. Gastric auscultation and abdominal ultrasonography are performed simultaneously during mask ventilation to detect inflow of air. Initial inspiratory airway pressure is 10 cmH2O and increased gradually by 2 cmH2O until gastric insufflation is detected by either of two methods. Tracheal intubation is done after detection of gas.
For non-relaxation group, mask ventilation is performed in a same manner, without muscle relaxant. After detection of gas by any of the two methods, rocuronium 0.6 mg/kg is administered and tracheal intubation is performed.
Tidal volume and oxygen saturation are recorded during study period.
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
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Seoul、大韓民国、110-744
- Seoul National University Hospital
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Pediatric patients scheduled for elective surgery under general anesthesia
- BMI < 30
- ASA class 1 or 2
Exclusion Criteria:
- with difficult airway
- preexisting pulmonary disease
- upper respiratory tract infection
- intestinal obstruction
- with risk of pulmonary aspiration
- history of stoke or moyamoya disease
研究計画
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：診断
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：独身
武器と介入
参加者グループ / アーム |
介入・治療 |
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実験的：Neuromuscular blocker
During induction of anesthesia, mask ventilation by pressure controlled ventilation is performed with after rocuronium administration in children while continuous gastric auscultation and abdominal sonography are performed.
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Mask ventilation is performed after administration of rocuronium or not.
Initial inspiratory pressure is set as 10 cmH2O and increased gradually by 2 cmH2O until gastric insufflation is detected by either of two methods.
Tracheal intubation is done after detection of gas.
Rocuronium 0.6 mg/kg is injected before mask ventilation in muscle relaxant group or after finish of study in non-relaxant group.
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アクティブコンパレータ：Non-neuromuscular blocker
During induction of anesthesia, mask ventilation by pressure controlled ventilation is performed without rocuronium in children while continuous gastric auscultation and abdominal sonography are performed.
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Mask ventilation is performed after administration of rocuronium or not.
Initial inspiratory pressure is set as 10 cmH2O and increased gradually by 2 cmH2O until gastric insufflation is detected by either of two methods.
Tracheal intubation is done after detection of gas.
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Inspiratory Pressure That Cause Gastric Insufflation
時間枠：Interval between start of mask ventilation and detection of gastric insufflation, an expected average of 100 sec
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Difference in the inspiratory pressure that minimized the incidence of gastric insufflation, yet guaranteed a tidal volume of at least 6 ml/kg between the neuromuscular blocker and non-neuromuscular blocker groups. Gastric insufflation was measured using both gastric ultrasonography and epigastric auscultation. |
Interval between start of mask ventilation and detection of gastric insufflation, an expected average of 100 sec
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二次結果の測定
結果測定 |
時間枠 |
|---|---|
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Diagnostic Method That Detects Gastric Insufflation First
時間枠：Interval between start of mask ventilation and detection of gastric insufflation, an expected average of 100 sec
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Interval between start of mask ventilation and detection of gastric insufflation, an expected average of 100 sec
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協力者と研究者
捜査官
- 主任研究者：Jin-Tae Kim, MD. PhD.、Seoul National University
出版物と役立つリンク
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。
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