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Postoperative PainNCT05122338

Effect of Transversus Abdominis Plane Block With Compound Lidocaine and Esketamine on Pain After Surgery

A study testing Normal saline, Ropivacaine and Compound lidocaine in people with Postoperative Pain, run by Tianjin Medical University General Hospital.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Purpose: To explore effects of ultrasound-guided transversus abdominis plane block with compound lidocaine and esketamine on postoperative pain after colorectal cancer surgery. Read more about this study

Who is it for?
Ages 20 to 65 years
Conditions the study is for
Postoperative Pain
What is being tested?
Normal saline, Ropivacaine and Compound lidocaine
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
160 participants
Where
No sites listed yet
Study dates
1 Dec 2021to 15 Jun 2022
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subject is scheduled to undergo colorectal cancer surgery under general anesthesia
  • Subject's American Society of Anesthesiologists physical status is I-II.
  • The subject's parent/legally authorized guardian has given written informed consent to participate.

Who cannot join

  • Subject has a diagnosis of bronchial asthma, coronary heart disease, severe hypertension, renal failure or liver failure.
  • Subject has a diagnosis of Insulin dependent diabetes.
  • Subject is allergy and contraindication to local anesthetics or any components of local anesthetics.
  • Subject has a history of chronic pain, a history of alcohol or opioid abuse, pre- existing therapy with opioids, intake of any analgesic drug within 48 hours before surgery.
  • Subject has any contraindication for the use of patient-controlled analgesia (PCA).
  • Subject is pregnant or breast-feeding.
  • Subject is obese (body mass index >30kg/m^2).
  • Subject is incapacity to comprehend pain assessment and cognitive assessment.

Trial locations and contacts

No sites are listed yet.

About this study

Official title: Effect of Ultrasound-guided Transversus Abdominis Plane Block With Compound Lidocaine and Esketamine on Postoperative Pain in Patients Undergoing Colorectal Cancer Surgery: a Randomized Double-blind Controlled Trial

Purpose:

To explore effects of ultrasound-guided transversus abdominis plane block with compound lidocaine and esketamine on postoperative pain after colorectal cancer surgery.

Read the detailed description

Poor post-surgical pain control is a leading factor that hinders the physical rehabilitation, and causes acute cognitive impairment and chronic pain syndrome. Recently, the multimodal analgesia strategies to minimise opioid related side effects are highly desirable in open surgical procedures. The transversus abdominis plane block is a novel technique involving injection of local anaesthetic between the internal oblique and the transversus abdominis muscles of the abdominal wall. Although ropivacaine is most commonly used for this technique, the analgesic duration remains not dissatisfied. Compared with ropivacaine, compound lidocaine injection has a better and longer analgesic activity since it contains menthol and ethanol with appropriate concentrations. However, whether compound lidocaine injection is efficiency in the transversus abdominis plane block for abdominal surgery lacks investigations. Herein, we will evaluate the efficacy of ultrasound-guided transversus abdominis plane (USG-TAP) block with compound lidocaine injection and esketamine for postoperative analgesia in patients undergoing colorectal cancer surgery.

Being tested
Normal saline, Ropivacaine, Compound lidocaine, Esketamine
Keywords
Compound lidocaine, Ropivacaine, Transversus abdominis plane block, opioid consumption
Medical subject headings
Pain, Postoperative

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Normal salineDrug

    Also called 0. 9% Sodium Chloride Injection

    Before the induction of anesthesia, normal saline is used for bilateral transversus abdominis plane block in a volume of 20 mL of each side

  • RopivacaineDrug

    Also called Ropivacaine Hydrochloride Injection

    Before the induction of anesthesia, 0.375% ropivacaine is used for bilateral transversus abdominis plane block in a volume of 20 mL of each side

  • Compound lidocaineDrug

    Also called Compound Lidocaine Hydrochloride Injection

    Before the induction of anesthesia, 0.4% compound lidocaine is used for bilateral transversus abdominis plane block in a volume of 20 mL of each side

  • EsketamineDrug

    Also called Esketamine injection

    Before the induction of anesthesia, 0.4mg/kg esketamine is used for bilateral transversus abdominis plane block

Study groups in NCT05122338
Study groupRoleWhat they receive
Normal saline in transversus abdominis plane blockPlacebo comparatorBefore the induction of anesthesia, normal saline is used for bilateral transversus abdominis plane block in a volume of 20 mL of each side.
Receives: Drug: Normal saline
Ropivacaine in transversus abdominis plane blockActive comparatorBefore the induction of anesthesia, 0.375% ropivacaine is used for bilateral transversus abdominis plane block in a volume of 20 mL of each side.
Receives: Drug: Ropivacaine
Compound lidocaine in transversus abdominis plane blockActive comparatorBefore the induction of anesthesia, 0.4% compound lidocaine is used for bilateral transversus abdominis plane block in a volume of 20 mL of each side.
Receives: Drug: Compound lidocaine
Compound lidocaine and esketamine in transversus abdominis plane blockActive comparatorBefore the induction of anesthesia, 0.4% compound lidocaine and 0.4mg/kg esketamine are used for bilateral transversus abdominis plane block in a volume of 20 mL of each side.
Receives: Drug: Compound lidocaine; Drug: Esketamine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Postoperative opioid consumption

    Each patient was administered analgesics using a PCA (Patient-controlled analgesia) pump containing opioid in normal saline after leaving PACU (Postanesthesia care unit). Opioid cumulative consumption is recorded for 48 hours postoperatively.

    Measured: 48 hours after surgery

Secondary outcomes (10)
  1. Pain Score (NRS)

    The pain score at rest or after movement was evaluated by pain 11-point numerical rating scale (NRS): 0 = no pain, 10 = greatest imaginable pain.

    Measured: 48 hours after surgery

  2. Time of First Postoperative Analgesic Requirement

    First postoperative pain (NRS≥5) is initially controlled by titration of opioid.

    Measured: 1 hour after surgery

  3. Total Dose of First Postoperative Analgesic Requirement

    First postoperative pain (NRS≥5) is initially controlled by titration of opioid.

    Measured: 1 hour after surgery

  4. The incidence of Side Effects

    The number of patients with side effects including nausea, vomiting, dizziness, headache, shivering, and pruritus is recorded for 48 hours postoperatively.

    Measured: 48 hours after surgery

  5. Apfel score

    The Apfel score was recorded for evaluating risk for developing postoperative nausea and vomiting (PONV).

    Measured: The 1 day before the surgery

  6. Mean time until passage of flatus

    Gastrointestinal motility was evaluated by recording mean time until passage of flatus

    Measured: 96 hours after surgery

  7. Diffusion area of local anesthetics after transversus abdominis plane block

    Diffusion area of local anesthetics after transversus abdominis plane block was calculated under ultrasound assistance.

    Measured: 30 minutes after transversus abdominis plane block

  8. Normalized Area of Hyperalgesia Around the Incision

    The skin around the incision is stimulated in steps of 5 mm at intervals of 1 s starting outside of the hyperalgesic area in the direction of the incision. The distance from the incision to the first point where a 'painful', 'sore' or 'sharper'feeling occurred is measured and noted. This measurement is repeated at predefined radial lines around the incision. To eliminate the variable length of incision, this length is subtracted from the longer diameter leaving four radial distances from the end and from the middle of the incision. The normalized area of hyperalgesia is calculated by summing up the areas of the remaining four triangles measured by and Von Frey filament.

    Measured: 48 hours after surgery

  9. The level of cytokines in blood By ELISA kits

    Blood is collected to measure the level of cytokines (such as IL-18, IL-17, IL-23 ) using ELISA kits.

    Measured: 48 hours after surgery

  10. The level of chemokines in blood By ELISA kits

    Blood is collected to measure the level of chemokines (such as CXCL1, CCL7, CCL2) using ELISA kits.

    Measured: 48 hours after surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 Nov 2021
  2. Study start1 Dec 2021 (estimated)
  3. Primary completion15 May 2022 (estimated)
  4. Study completion15 Jun 2022 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
160 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05122338
Sponsor's protocol ID
GWang021
Status last verified
Nov 2021
First submitted
7 Nov 2021
Last updated
16 Nov 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Normal saline, Ropivacaine and Compound lidocaine in people with Postoperative Pain, run by Tianjin Medical University General Hospital.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 16 Nov 2021. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Guolin Wang, MD (+8615822855556, wangguolinghad@hotmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Postoperative opioid consumption (time frame: 48 hours after surgery). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Nov 2021.

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