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Comparıson of Analgesıc Effıcacy of Dıfferent Volumes of Serratus Posterior Superıor Intercostal Plane Block After Modıfıed Radıcal Mastectomy Surgery

2026年8月22日 更新者:Oguz Gundogdu、Cumhuriyet University

Comparıson of Analgesıc Effectıveness of Dıfferent Volumes of Serratus Posterıor Superıor Intercostal Plane Block In Patıents Undergoıng Modıfıed Radıcal Mastectomy Surgery

The aim of researchers is to compare the effects of three different local anesthetic concentrations and volumes on opioid consumption, postoperative analgesic efficacy, and pain scores during ultrasound-guided SPSIP blocks in patients undergoing modified radical mastectomy. Additionally, we aim to map and identify the dermatomal areas where different concentrations and volumes of SPSIP blocks provide analgesia.

研究概览

详细说明

The researchers' hypothesis is that a lower concentration but higher volume of SPSIP block could provide similar analgesic efficacy to a higher concentration and lower volume block, while also improving the safety profile in terms of local anesthetic systemic toxicity by reducing the total local anesthetic load. In other words, we believe that using less than the 0.25% bupivacaine used in previous studies on this block could provide similar analgesic efficacy. This is because, in fascial plane blocks, separating the fascia is as important a technique as the local anesthetic administered. Facial plane blocks are volume-dependent blocks.

The Modified Aldrete scoring system is a routine assessment performed in our clinic's postoperative recovery room to determine whether a patient has recovered. Patients with an NRS score of 4 or higher, despite routine analgesia, will receive 50 mg tramadol hydrochloride as a rescue analgesic, administered intravenously over 30 minutes in 150 ml of saline solution.

研究类型

介入性

注册 (估计的)

90

阶段

  • 不适用

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。

学习联系方式

学习地点

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

  • 成人
  • 年长者

接受健康志愿者

不

描述

Inclusion Criteria:

  • The study included adult patients over 18 years of age who underwent modified radical mastectomy under general anesthesia and were classified in risk groups I-II-III according to the American Society of Anesthesiologists (ASA) risk classification.

Exclusion Criteria:

  • patients with coagulopathy,
  • patients with signs of infection at the block application site,
  • patients with ASA IV
  • patients with known allergies to any of the study drugs,
  • patients with ineffective block
  • patients who could not cooperate during postoperative pain assessment
  • patients who wanted to withdraw from the study,
  • patients with alcohol and drug addiction,
  • patients with musculoskeletal abnormalities
  • patients with kidney and liver failure
  • patients with obesity (body mass ≥ 35 kg/m2)

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:其他
  • 分配:随机化
  • 介入模型:并行分配
  • 屏蔽:四人间

武器和干预

参与者组/臂
干预/治疗
有源比较器:30 ml of 0.25% Bupivacaine
A Serratus Posterior Superior Intercostal Plane (SPSIP) block will be performed using 30 ml of 0.25% bupivacaine (15 ml of the drug + 15 ml of isotonic solution).
A Serratus Posterior Superior Intercostal Plane (SPSIP) block will be performed using 30 ml of 0.25% bupivacaine (15 ml of the drug + 15 ml of isotonic solution).
有源比较器:40 ml of 0.1875% Bupivacaine
A Serratus Posterior Superior Intercostal Plane (SPSIP) block will be performed using 40 ml of 0.1875% bupivacaine (15 ml of the drug + 25 ml of isotonic solution).
A Serratus Posterior Superior Intercostal Plane (SPSIP) block will be performed using 40 ml of 0.1875% bupivacaine (15 ml of the drug + 25 ml of isotonic solution).
有源比较器:50 ml of 0.15% bupivacaine
A Serratus Posterior Superior Intercostal Plane (SPSIP) block will be performed using 50 ml of 0.15% bupivacaine (15 ml of the drug + 35 ml of isotonic solution).
A Serratus Posterior Superior Intercostal Plane (SPSIP) block will be performed using 50 ml of 0.15% bupivacaine (15 ml of the drug + 35 ml of isotonic solution).

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
曲马多总消耗量
大体时间:术后24小时
术后总镇痛需要量以“毫克”为单位记录。
术后24小时

次要结果测量

结果测量
措施说明
大体时间
Dermatome Area
大体时间:30th minute after the block
Thirty minutes after the block procedure, we will perform a pinprick test by inserting a sterile needle from the tip of the syringe into the patient's skin and recording the areas where skin analgesia has developed.
30th minute after the block
Numeric Rating Scale (NRS) Scores
大体时间:Postoperative 24 hours
Description: Numerical rating scale is used for pain assessment. The scores of the numerical rating scale changes between 0 to 10 points. 10 points mean "the most severe pain
Postoperative 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。

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8月25日

初级完成 (估计的)

2027年8月25日

研究完成 (估计的)

2027年8月30日

研究注册日期

首次提交

2026年6月17日

首先提交符合 QC 标准的

2026年6月23日

首次发布 (实际的)

2026年6月26日

研究记录更新

最后更新发布 (实际的)

2026年8月25日

上次提交的符合 QC 标准的更新

2026年8月22日

最后验证

2026年8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)?

不

药物和器械信息、研究文件

研究美国 FDA 监管的药品

不

研究美国 FDA 监管的设备产品

不

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