このページは自動翻訳されたものであり、翻訳の正確性は保証されていません。を参照してください。 英語版 ソーステキスト用。

Effect of Pre-injection of Rocuronium on Neuromuscular Blockade Onset Time and Hemodynamics During General Anesthesia Induction

2026年7月16日 更新者：General Hospital of Ningxia Medical University

This is a single-center, prospective, randomized, controlled trial comparing pre-injection versus standard bolus administration of rocuronium bromide for general anesthesia induction. A total of 108 adult patients (18-65 years, ASA I-III) scheduled for elective surgery requiring endotracheal intubation will be enrolled and randomized 1:1 to either the pre-injection group or control group.

The pre-injection group will receive rocuronium 0.06 mg/kg as a priming dose followed by 0.54 mg/kg 3 minutes later. The control group will receive rocuronium 0.6 mg/kg as a single bolus. All patients will receive standardized anesthesia induction with midazolam and propofol.

The primary outcome is neuromuscular blockade onset time (seconds). Secondary outcomes include hemodynamic parameters (SBP, DBP, MAP, HR, CO, SV, SVR), injection pain incidence, and adverse events.

This study aims to investigate whether pre-injection of rocuronium can shorten neuromuscular blockade onset time while maintaining hemodynamic stability compared to standard bolus administration.

調査の概要

状態

募集

条件

介入・治療

研究の種類

介入

入学 (推定)

108

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

  • 中国
      • Yinchuan、中国
        • 募集
        • General Hospital of Ningxia Medical University
        • コンタクト：

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人
  • 高齢者

健康ボランティアの受け入れ

はい

説明

Inclusion Criteria:

  • Aged from 18 to 65 years old
  • American Society of Anesthesiologists (ASA) physical status classification Ⅰ, Ⅱ or Ⅲ
  • Elective surgery requiring general anesthesia with tracheal intubation
  • Able to understand the study and voluntarily sign written informed consent
  • Male or female, no gender restriction

Exclusion Criteria:

  • Severe hepatic dysfunction (ALT/AST > 3 times the upper limit of normal) or renal dysfunction (creatinine > 2 times the upper limit of normal)
  • Central nervous system diseases or severe neuromuscular disorders
  • Severe arrhythmia or cardiac dysfunction (NYHA class Ⅲ-Ⅳ, or ejection fraction EF < 30%)
  • Known hypersensitivity or allergy to rocuronium, midazolam, propofol or other study-related drugs
  • Refusal to participate in this clinical trial
  • Pregnant or breastfeeding women
  • History of predicted difficult airway requiring awake tracheal intubation
  • Contraindications to rapid sequence induction

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

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：4倍

武器と介入

参加者グループ / アーム
介入・治療
実験的：Pretreated Rocuronium Group
薬：Rocuronium Bromide (Pretreatment Injection)
Low-dose rocuronium bromide is injected intravenously in advance before anesthesia induction
アクティブコンパレータ：Conventional Administration Group
薬：Rocuronium Bromide (Conventional Injection)
Rocuronium bromide is administered by standard routine intravenous injection during anesthesia induction

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
Neuromuscular blockade onset time
時間枠：Within 5 minutes after completion of rocuronium-bromide injection
The time interval from injection of rocuronium bromide to maximum neuromuscular block effect
Within 5 minutes after completion of rocuronium-bromide injection

二次結果の測定

結果測定
メジャーの説明
時間枠
Systolic Blood Pressure (SBP)
時間枠：Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。
Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。
Diastolic Blood Pressure (DBP)
時間枠：Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。
Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。
Mean Arterial Pressure (MAP)
時間枠：Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。
Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。
Heart Rate (HR)
時間枠：Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。
Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。
Cardiac Output (CO)
時間枠：Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。

Measurement instrument: Non-invasive continuous blood pressure and cardiac output monitoring system (Model T20A).

Measurement method: Finger cuff volume pulse wave plethysmography, the device automatically calculates real-time CO value, unit: L/min.

Assessment method: Record stable CO value after waveform stabilization for 10 seconds at each time point; compare absolute value and percentage change vs baseline to evaluate the hemodynamic effect of rocuronium.
Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。
Stroke Volume (SV)
時間枠：Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。

Measurement instrument: Non-invasive continuous blood pressure and cardiac output monitoring system (Model T20A).

Measurement method: Continuous finger pulse wave monitoring, automatic calculation of stroke volume (unit: mL/beat).

Assessment method: Record stable SV readings at each time point and analyze dynamic changes compared with baseline.
Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。
Systemic Vascular Resistance (SVR)
時間枠：Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。

Measurement device: Non-invasive continuous blood pressure and cardiac output monitor (Model T20A).

Measurement method: SVR (unit: dyn·s·cm-⁵) is automatically calculated by the monitor using real-time mean arterial pressure, central venous pressure and cardiac output.

Assessment: SVR values were recorded once readings stabilized to assess changes in total peripheral vascular resistance after rocuronium administration.
Baseline (before rocuronium-bromide injection), 0.5-minute, 1-minute, 2-minute, 3-minute and 5-minute after rocuronium-bromide injection。
Injection Pain
時間枠：Pain assessment is performed within 5 minutes after completion of rocuronium injection.

Four-point grading scale for evaluating limb withdrawal reaction induced by injection pain:

0 = No limb contraction or twitching;

  1. = Only slight wrist movement, no movement of other arm joints;
  2. = Entire arm movement/withdrawal involving elbow, shoulder and other joints;
  3. = Systemic response with movements across multiple limbs beyond one single limb.

Subjects with a score ≥1 are defined as having injection pain.
Pain assessment is performed within 5 minutes after completion of rocuronium injection.
Limb Withdrawal Response
時間枠：Assessment shall be completed within 5 minutes after rocuronium injection.

Four-point grading scale for evaluating limb withdrawal reaction induced by injection pain:

0 = No limb contraction or twitching;

  1. = Only slight wrist movement, no movement of other arm joints;
  2. = Entire arm movement/withdrawal involving elbow, shoulder and other joints;
  3. = Systemic response with movements across multiple limbs beyond one single limb.

Subjects with a score ≥1 are defined as having injection pain.
Assessment shall be completed within 5 minutes after rocuronium injection.
Adverse Events
時間枠：Continuous assessment from the start of anesthesia induction until the end of surgery; the maximum assessment period is the perioperative period of a single operation.

Record adverse events occurring during perioperative period, including severe bradycardia (heart rate <45 beats per minute), hypotension (mean arterial pressure MAP <65 mmHg), various arrhythmias and allergic reactions. The number and incidence of each type of adverse event will be counted.

Assessment method: Vital signs are continuously monitored intraoperatively. Anesthesiologists identify and record all eligible adverse events in real time, with documentation of onset time, duration and corresponding interventions.
Continuous assessment from the start of anesthesia induction until the end of surgery; the maximum assessment period is the perioperative period of a single operation.

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

スポンサー

General Hospital of Ningxia Medical University

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (推定)

2026年7月1日

一次修了 (推定)

2026年12月1日

研究の完了 (推定)

2026年12月1日

試験登録日

最初に提出

2026年7月4日

QC基準を満たした最初の提出物

2026年7月16日

最初の投稿 (実際)

2026年7月21日

学習記録の更新

投稿された最後の更新 (実際)

2026年7月21日

QC基準を満たした最後の更新が送信されました

2026年7月16日

最終確認日

2026年7月1日

詳しくは

本研究に関する用語

キーワード

追加の関連 MeSH 用語

その他の研究ID番号

  • KYLL-2026-0131

個々の参加者データ (IPD) の計画

個々の参加者データ (IPD) を共有する予定はありますか?

いいえ

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

いいえ

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。

購読する