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Effect of Opioid-Sparing Anesthesia on Postoperative Opioid Consumption and Pain in Elderly Patients Undergoing Spine Surgery

2026年5月8日 更新者:Jingping Wang, MD, Ph.D.、Massachusetts General Hospital

Effect of Opioid-Sparing Anesthesia on Postoperative Opioid Consumption and Pain in Spine Surgery

The goal of this clinical trial is to learn if an anesthesia management strategy called opioid-sparing anesthesia could help reduce postoperative opioid consumption, pain intensity and enhance recovery in elderly patients undergoing spine surgery. The main questions it aims to answer are:

Does opioid-sparing anesthesia reduce postoperative opioid consumption?

Dose opioid-sparing anesthesia improve postoperative pain and enhance recovery?

Researchers will compare opioid-sparing anesthesia to routine anesthesia which is used most common in clinical practice to see if opioid-sparing anesthesia lead to fewer postoperative opioid consumption and better pain and recovery outcomes.

Participants will randomly assigned to one of two groups. One group will receive opioid-sparing anesthesia management , while the other group will receive routine anesthesia management during general anesthesia.

Participants will provide two rectal swab samples for analysis, complete five questionnaires once preoperatively, and then complete five questionnaires daily for three days postoperatively.

研究概览

研究类型

介入性

注册 (估计的)

120

阶段

  • 阶段2

参与标准

研究人员寻找符合特定描述的人,称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

  • 年长者

接受健康志愿者

描述

Inclusion Criteria:

  • Aged ≥ 65 years
  • Undergoing multilevel level (≥2 levels) spine surgery under general anesthesia
  • Able to provide written informed consent

Exclusion Criteria:

  • Diagnosed with severe cognitive impairment or psychiatric disorders that impair participation or communication
  • Pregnant or breastfeeding
  • Patients with contraindications to any of the medications in the study protocol (unstable angina, recent myocardial infarction, cerebral or aortic aneurysms, increased intracranial pressure, increased intraocular pressure, psychosis or schizophrenia, pheochromocytoma, epilepsy, second- or third-degree atrioventricular block, bradycardia (heart rate < 50bpm), liver failure, hypotension (systolic BP <80 mmHg))
  • Drug or alcohol abuse
  • Refuse to participate

学习计划

本节提供研究计划的详细信息,包括研究的设计方式和研究的衡量标准。

研究是如何设计的?

设计细节

  • 主要用途:治疗
  • 分配:随机化
  • 介入模型:并行分配
  • 屏蔽:双倍的

武器和干预

参与者组/臂
干预/治疗
实验性的:Group 1:Opioid-Sparing Anesthesia
Participants assigned to Group 1 will receive opioid-sparing anesthesia strategy. Continuous intravenous infusion of ketamine (5 μg/kg/min) and dexmedetomidine (0.6 μg/kg/h) will be initiated from induction and maintained until one hour before the anticipated end of surgery. If needed during surgery, rescue analgesia with dexmedetomidine (0.4 μg/kg, i.v.) or ketamine (5 mg, i.v.) may be administered as clinically indicated.
The opioid-sparing anesthesia protocol consists of continuous intravenous infusion of ketamine (5 μg/kg/min) and dexmedetomidine (0.6 μg/kg/h) during general anesthesia. If needed during surgery, rescue analgesia with dexmedetomidine (0.4 μg/kg, i.v.) or ketamine (5 mg, i.v.) may be administered as clinically indicated.
有源比较器:Group 2:Routine Anesthesia
Participants assigned to Group 2 will receive routine anesthesia management. During induction, fentanyl 100 μg will be administered intravenously. If needed during surgery, rescue analgesia with hydromorphone may be administered as clinically indicated.
Routine anesthesia consisting of standard general anesthetic management per institutional practice, which include opioid-based analgesia as clinically indicated, which is fentanyl 100 μg during induction, and if needed during surgery, rescue analgesia with hydromorphone may be administered as clinically indicated.

研究衡量的是什么?

主要结果指标

结果测量
措施说明
大体时间
Opioid consumption
大体时间:From end of surgery to 24 hours after surgery
Total morphine equivalent consumption during the first 24 hours after surgery
From end of surgery to 24 hours after surgery

次要结果测量

结果测量
措施说明
大体时间
Pain Scores (NRS)
大体时间:From end of surgery to postoperative 72 hours
Pain intensity will be assessed after recovery and 1, 6, 24, 48, 72 hours after surgery using the Numeric Rating Scale (NRS) daily, including NRS at rest, NRS on movement.
From end of surgery to postoperative 72 hours
Time to First Rescue Analgesia
大体时间:From end of surgery to the administration of the first rescue analgesic
The exact time (in hours and minutes) from the end of surgery to the administration of the first rescue analgesic will be recorded.
From end of surgery to the administration of the first rescue analgesic
Total Analgesic Consumption
大体时间:From end of surgery to postoperative 72 hours
The cumulative amount of all pain medications (opioid and non-opioid, oral and intravenous) administered within 3 days postoperatively, including total morphine equivalent consumption during 48 hours and 72 hours after surgery.
From end of surgery to postoperative 72 hours
Time to first postoperative flatus
大体时间:Up to 72 hours postoperatively
The exact time (in hours and minutes) from the end of surgery to the first postoperative flatus will be recorded.
Up to 72 hours postoperatively
Quality of recovery
大体时间:At 1 day after surgery
The quality of recovery after surgery will be evaluated using Quality of Recovery-15 (QoR-15) at 1 day after surgery.
At 1 day after surgery
Sleep quality
大体时间:From end of surgery to 3 days after surgery
The sleep quality after surgery will be evaluated daily for the first 3 postoperative days using Richards-Campbell Sleep Questionnaire (RCSQ).
From end of surgery to 3 days after surgery
Postoperative anxiety
大体时间:From end of surgery to 2 days after surgery
The anxiety after surgery will be evaluated daily for the first 2 postoperative days using Visual Analog Scale for Anxiety (NRS-anxiety).
From end of surgery to 2 days after surgery
Postoperative delirium
大体时间:From end of surgery to 3 days after surgery
The postoperative delirium will be evaluated twice a day for the first 3 postoperative days using 3-Minute Diagnostic Interview for CAM (3D-CAM).
From end of surgery to 3 days after surgery
Length of Hospital Stay
大体时间:Through hospital discharge, up to 14 days
Length of hospital stay measured as the number of days from the date of surgery to hospital discharge.
Through hospital discharge, up to 14 days
Adverse Effects
大体时间:From end of surgery to 3 days after surgery
Incidence of nausea or vomiting, acute urinary retention, drowsiness, pruritus, and dizziness or any other reported complications will be recorded.
From end of surgery to 3 days after surgery
Gut microbiota
大体时间:From 1 day before surgery to 2 days after surgery
Gut microbiota diversity (α and β), and correlation between relative abundance of specific microbial taxa and the effect of opioid-sparing anesthesia will be analyzed.
From 1 day before surgery to 2 days after surgery

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查,以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (估计的)

2026年5月1日

初级完成 (估计的)

2027年4月1日

研究完成 (估计的)

2027年5月1日

研究注册日期

首次提交

2026年5月5日

首先提交符合 QC 标准的

2026年5月8日

首次发布 (实际的)

2026年5月15日

研究记录更新

最后更新发布 (实际的)

2026年5月15日

上次提交的符合 QC 标准的更新

2026年5月8日

最后验证

2026年5月1日

更多信息

与本研究相关的术语

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)?

IPD 计划说明

Individual participant data (IPD) will not be shared due to concerns about patient privacy and the sensitive nature of the data collected.

药物和器械信息、研究文件

研究美国 FDA 监管的药品

是的

研究美国 FDA 监管的设备产品

在美国制造并从美国出口的产品

是的

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Opioid-Sparing Protocol的临床试验

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