Onset of Labour Epidural Analgesia With Different Concentration Bupivacaine and Different Doses of Sufentanyl
A Randomized Controlled Comparison of Different Dose Combinations of Bupivacaine and Sufentanil on Epidural Analgesia Onset Time and Adverse Reactions During Labor
調査の概要
状態
詳細な説明
Epidural block is widely used as an analgesic method during labor. During epidural anaesthesia, lipophilic opioids such as sufentanil, are often combined with local anesthetics to prolong the duration of analgesia and improve the analgesic effect. However, dose combinations of local anesthetics and opioids, especially in the initial loading dose, vary greatly from hospital to hospital and often depend upon the different routines adopted by anesthesiologists. In clinical practice, there are still some controversy about opioid dose selection in terms of analgesic onset time and adverse reactions.
In this study, three combinations of bupivacaine and sufentanil were chosen, commonly used in the clinic, and extended the observation period to 24 hours after delivery. We hypothesized that increasing the concentration of local anesthetic, rather than increasing the dose of sufentanil, would achieve a faster analgesic effect with minimal adverse effects on the mother and fetus. To test our hypothesis, our primary outcome was to compare the times of analgesia onset of the three combinations, and the secondary outcomes were to compare the effects on maternal and infant adverse reactions.
研究の種類
入学 (実際)
段階
- フェーズ 4
連絡先と場所
研究場所
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Shanghai、中国
- Ethics Committee of The Obstetrics and Gynecology Hospital, Fudan University,
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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:patients ASA physical status 1 or 2; early labour (cervical dilation 5 cm or less); singleton fetus; gestational age > 36 weeks; and normal fetal heart rate (FHR) tracing. -
Exclusion Criteria:severe preeclampsia;antepartum haemorrhage; ASA 3 or more; chronic pain; substance abuse;contraindications to epidural analgesia; allergies to local anaesthetics or fentanyl; body mass index (BMI) over 40; and previous administration of opioid analgesia within 24 h.
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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：処理
- 割り当て：ランダム化
- 介入モデル：並列代入
- マスキング：ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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アクティブコンパレータ：0.1%bupivacaine+10µg sufentanyl
Epidural labour analgesia was initiated with 10µg sufentanyl along with 5 ml bupivacaine 0.1% as the test dose.
After 3 min, 10 ml of 0.1% bupivacaine epidural was injected
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Women were then placed supine with left uterine displacement.
Epidural labour analgesia was initiated with 10µg sufentanyl along with 5 ml bupivacaine 0.1% as the test dose.
After 3 min, 10 ml of 0.1% bupivacaine epidural was injected
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アクティブコンパレータ：0.125%bupivacaine+5µg sufentanyl
Epidural labour analgesia was initiated with 5µg sufentanyl along with 5 ml bupivacaine 0.125% as the test dose.
After 3 min, 10 ml of 0.125% bupivacaine epidural was injected
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Women were then placed supine with left uterine displacement.
Epidural labour analgesia was initiated with 5µg sufentanyl along with 5 ml bupivacaine 0.125% as the test dose.
After 3 min, 10 ml of 0.125% bupivacaine epidural was injected
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アクティブコンパレータ：0.1%bupivacaine+5µg sufentanyl
Epidural labour analgesia was initiated with 5µg sufentanyl along with 5 ml bupivacaine 0.1% as the test dose.
After 3 min, 10 ml of 0.1% bupivacaine epidural was injected
|
Women were then placed supine with left uterine displacement.
Epidural labour analgesia was initiated with 5µg sufentanyl along with 5 ml bupivacaine 0.1% as the test dose.
After 3 min, 10 ml of 0.1% bupivacaine epidural was injected
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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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the time to achieve effective analgesia
時間枠：30 min
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We defined the onset of analgesia as the time from the start of the injection to the time when the NPRS score was reduced to at least half of the original score.
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30 min
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二次結果の測定
結果測定 |
時間枠 |
|---|---|
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Sensory block, maternal side effects (pruritus, hypotension, sedation，motor block and decreased fetal heart rate) were recorded at 5-min intervals for 30 min. sedation)
時間枠：30min
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30min
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time from the first PCA bolus, patient satisfaction, type of delivery, fever, establishment of breast feeding and LATCH score within 24 h, cumulative dosage of sufentanil/bupivacaine, time from bolus to delivery.
時間枠：delivery 24h
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delivery 24h
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協力者と研究者
スポンサー
捜査官
- スタディチェア：Shaoqiang Huang, PhD、Department of Anaesthesia, Obstetrics & Gynecology Hospital, Fudan University
研究記録日
主要日程の研究
研究開始 (実際)
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 (実際)
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
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