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Great Auricular Nerve Block for Children Undergoing Tympanomastoid Surgery

Great Auricular Nerve Block for Children Undergoing Tympanomastoid Surgery: Does the Addition of Clonidine Increase the Duration of Postoperative Analgesia?

The investigators goal is to determine the efficacy and duration of analgesia with the addition of Clonidine, an alpha-2 agonist, to local anesthetic blockade using bupivacaine, of the great auricular nerve in children undergoing tympanomastoid surgery.

研究概览

详细说明

The surgical anesthesia during the operative procedure will be maintained using volatile anesthetics. No prophylactic dexamethasone or ondansetron would be provided to any patients in either group. Anesthesia will be discontinued at the end of the procedure and the patient will be extubated once standard extubation criteria have been met. Patients will be then taken to the postoperative recovery room where they will be evaluated for pain and discomfort by a blinded observer using the CHIPPS (Children and Infants Postoperative Pain Scale). If two consecutive pain scores at 5 minute intervals is >6, they will be rescued with incremental doses of 0.05 mg/kg of intravenous morphine required to reach a score of <6. The number of rescue doses as well as the pain scores will be documented. These patients will be also observed for the presence of nausea/vomiting. Any patient who vomits more than two times will be rescued with ondansetron 0.1 mg/kg intravenously. All patients will be continued to be evaluated in the 23 hour unit. Pain and side effects will be assessed for the next 6 hours or until discharge from the 23 hour observation facility. Standard doses of acetaminophen with codeine will be provided for pain relief in the 23 hour observational unit, as well as on discharge. The number of doses of acetaminophen with codeine will be recorded. Time to discharge from the hospital will also be noted. A questionnaire designed to address parent/patient satisfaction will be utilized and will allude to the need for rescue analgesia and the need for any other additional analgesics provided. The use of any additional rescue pain medication will be provided to the families at the time of discharge. A follow-up phone call will be made in 24 hours to note the information provided on the questionnaire.

研究类型

介入性

注册 (实际的)

56

阶段

  • 阶段2

联系人和位置

本节提供了进行研究的人员的详细联系信息,以及有关进行该研究的地点的信息。

学习地点

    • Illinois
      • Chicago、Illinois、美国、60611
        • Ann & Robert H. Lurie Children's Hospital of Chicago

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

1年 至 18年 (孩子、成人)

接受健康志愿者

不

有资格学习的性别

全部

描述

Inclusion Criteria:

  • age 1-18 years
  • tympanomastoid surgery (cochlear implant, mastoidectomy, cholesteatoma surgery)
  • ASA I, II
  • informed consent and assent obtained

Exclusion Criteria:

  • allergic to local anesthestic
  • taking chronic aspirin or Ibuprofen therapy
  • ASA IV
  • history of clinically important renal, hepatic, respiratory, cardiac, or neurological conditions
  • Patients who have cardiovascular surgery other than an atrial septal defect or a ventricular septal defect, or who have undergone complete corrective intracardiac repair of congenital heart disease.
  • Informed consent not obtained
  • Patients expected to receive dexamethasone or ondansetron intra-operative

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:支持治疗
  • 分配:随机化
  • 介入模型:并行分配
  • 屏蔽:三倍

武器和干预

参与者组/臂
干预/治疗
无干预:0.25% Bupivacaine
This is our standard of care concentration
实验性的:0.25% Bupivacaine + Clonidine
These are not two separate drugs, but a mixture of Bupivacaine and Clonidine.
Patients will receive 2mL of 0.25% bupivacaine with 2mcg/ml of clonidine
其他名称:
  • 马卡因

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
Average Observer-Rated Patient Pain Scores
大体时间:60 minutes
Patients will be observed with behaviors rated at regular time intervals using the CHIPPS (Children and Infants Postoperative Pain Scale) pain survey. The CHIPPS scale values range from a minimum of 0 (no pain, better outcome) to a maximum of 10 (worst pain, worse outcome).
60 minutes

次要结果测量

结果测量
措施说明
大体时间
Number of Participants With Nausea/Vomiting
大体时间:24 hours
Incidence of nausea/vomiting during 24 hour observation
24 hours
Number of Participants Requiring Use of Rescue Analgesic Medication in the Initial 24 Hours Postoperatively
大体时间:24 hours
Count of participants who will require use of rescue analgesic medication in the initial 24 hours postoperatively as recorded in the hospital or by parents at home following discharge.
24 hours

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。

调查人员

  • 首席研究员:Santhanam Suresh, MD、Ann & Robert H Lurie Children's hospital of Chicago

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。

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

2006年2月1日

初级完成 (实际的)

2008年3月1日

研究完成 (实际的)

2008年4月1日

研究注册日期

首次提交

2012年7月9日

首先提交符合 QC 标准的

2012年7月10日

首次发布 (估计)

2012年7月11日

研究记录更新

最后更新发布 (实际的)

2021年8月4日

上次提交的符合 QC 标准的更新

2021年8月2日

最后验证

2012年7月1日

更多信息

此信息直接从 clinicaltrials.gov 网站检索,没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求,请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改,我们的网站上也会自动更新.

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