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Pain, PostoperativeNCT05695625

The Effect of Bilateral Erector Spina Plane Block on Postoperative Analgesia in Cesarean Section Under SpinalAnaesthesia

A study testing Spinal anesthesia + bilateral erector spine plane block and Spinal anesthesia in people with Pain, Postoperative, run by Ankara University at 1 site in Turkey (Türkiye).

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Acute pain after cesarean section (SC) can be variable. Untreated pain can affect patients' life quality. Currently regional nerve blocks are frequently used as a part of multimodal analgesia. Read more about this study

Who is it for?
Ages 18 to 45 years, women onlyHealthy volunteers can take part
Conditions the study is for
Pain, Postoperative
What is being tested?
Spinal anesthesia + bilateral erector spine plane block and Spinal anesthesia
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
116 participants
Where
1 siteTurkey (Türkiye)
Study dates
1 May 2020to 1 Feb 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 18 to 45 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • between 18-45 years, pregnants delivered by CS from May 2020 to June 2021

Who cannot join

  • age under 18 years, over 45 years, body mass index (BMI) over 35 kg/m2, ASA status over III, multiple pregnancy, preeclampsia, bleeding diathesis, opioid use and allergy to drugs to be used in the study

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Bengi Şafak

    Ankara, 06230

Other trials in Turkey (Türkiye)

About this study

Official title: The Effect of Bilateral Erector Spina Plane Block on Postoperative Analgesia in Cesarean Section Under Spinal Anaesthesia

Acute pain after cesarean section (SC) can be variable. Untreated pain can affect patients' life quality. Currently regional nerve blocks are frequently used as a part of multimodal analgesia. Erector spina plane block (ESPB), a recently defined interfacial plane block, provides multisegmental analgesia by spreading to both ventral and dorsal branches of the spinal nerve roots in the cranio-caudal plane with a single injection. The aim of this study is to evaluate the effects of ESPB on postoperative pain, analgesic use and patient satisfaction in patients delivered by CS under spinal anesthesia.

Read the detailed description

Cesarean section (CS) is one of the most common surgical procedures in the world. Acute pain intensity after cesarean section can be variable, making difficult to predict pain severity. Untreated pain can affect patients' life quality. Currently regional nerve blocks are frequently used as a part of multimodal analgesia. Erector spina plane block (ESPB) is a recently defined interfascial plane block. As a result of ultrasound (USG) guided local anesthetic drug injection into the fascial plane between erector spina muscle and vertebral transverse process, multisegmental analgesia provided by spreading to the both ventral and dorsal branches of the spinal nerve roots in cranio-caudal plane with a single injection. The primary aim of this study was to evaluate the effects of bilateral ESPB on postoperative pain, using the visual analog scale (VAS) in patients delivered by CS under spinal anesthesia. The secondary aims of the study are to evaluate the effects of ESPB on analgesic drug use and patient satisfaction in the postoperative period.

116 pregnants, aged between 18-45 years, delivered by CS from May 2020 to June 2021 included the prospective, randomised, single centre study. Exclusion criteria were age under 18 years, over 45 years, body mass index (BMI) over 35 kg/m2, ASA status over III, multiple pregnancy, preeclampsia, bleeding diathesis, opioid use and allergy to drugs to be used in the study. Spinal anesthesia was administered with 0.5% bupivacaine and fentanyl 12.5mcg at the level of L4-5 interspace with 26G quincke spinal needle in the sitting position. At the end of the surgery, in ESPB group, patients were given a sitting position with the help of 2 people for USG-guided ESPB. The high-frequency linear USG probe was placed in the midline at T12 level, after the spinous process visualized, the transverse process was visualized by moving probe 3-4cm laterally. After confirming the location of the needle tip with 1-2ml hydrodissection, 10 ml bupivacaine + 10 ml salin was applied both right and left sides. At the postoperative 2, 4, 6, 12 and 24th hours, patients' rest, cough, movement, low back and headache VAS values, analgesic drug use, first analgesic use time and satisfaction were evaluated. ESPB spread level was evaluated with pin-prick at the 4-6th hours. The SPSS 11.5 program was used for statistical analysis.

Being tested
Spinal anesthesia + bilateral erector spine plane block, Spinal anesthesia
Keywords
Erector spina plane block, postoperative pain, obstetric analgesia
Medical subject headings
Pain, Postoperative

What participants receive

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

  • Spinal anesthesia + bilateral erector spine plane blockOther

    Intraoperative period: Spinal anesthesia was administered with 0.5% bupivacaine and fentanyl 12.5mcg at the level of L4-5 interspace in the sitting position. At the end of the surgery, patients were given a sitting position with the help of 2 people for USG-guided ESPB. The high-frequency linear USG probe was placed in the midline at T12 level, after the spinous process visualized, the transverse process was visualized by moving probe 3-4cm laterally. After confirming the location of the needle tip with 1-2ml hydrodissection, 10 ml bupivacaine + 10 ml salin was applied both right and left sides.

    Postoperative period: If patients' VAS value >4, 75mg diclofenac intramuscular was administered. After 30 mins if patients' VAS values >4, 1000mg paracetamol intravenously was administered.

  • Spinal anesthesiaOther

    Intraoperative period: Spinal anesthesia was administered with 0.5% bupivacaine and fentanyl 12.5mcg at the level of L4-5 interspace in the sitting position.

    Postoperative period: If patients' VAS value >4, 75mg diclofenac intramuscular was administered. After 30 mins if patients' VAS values >4, 1000mg paracetamol intravenously was administered.

Study groups in NCT05695625
Study groupRoleWhat they receive
Group ESPBActive comparatorSpinal anesthesia + bilateral ESPB (total of 40 ml, %0.5 bupivacaine)
Receives: Other: Spinal anesthesia + bilateral erector spine plane block
Group SAActive comparatorOnly spinal anesthesia
Receives: Other: Spinal anesthesia

What is being measured

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

  1. Postoperative pain

    VAS scores at 2, 4, 6, 12 and 24th hours. (VAS is an 11 point numeric scale ranges from 0 to 10. )

    Measured: 24 hours

Secondary outcomes (6)
  1. Postoperative analgesic drug consumption

    Diclofenac consumption in the first 24 hours was measured.

    Measured: 24 hours

  2. Need for rescue analgesic

    The number of patients who required rescue analgesic in the first 24 hours and paracetamol consumption were recorded.

    Measured: 24 hours

  3. Number of patients with postoperative nausea-vomiting and need of antiemetic usage

    Number of patients with postoperative nausea-vomiting and need of antiemetic usage were recorded.

    Measured: 24 hours

  4. Patients' satisfaction

    At the postoperative 2, 4, 6, 12 and 24th hours patients' satisfaction was assessed using a descriptive verbal scale (11 point scale from 0 to 10. 0: not satisfied, 10: very satisfied).

    Measured: 24 hours

  5. First analgesic using time, first mobilization time, hospitalization time

    Postoperative first analgesic using time, first mobilization time and hospitalization time were recorded.

    Measured: Postoperative 4 days on an average

  6. ESPB spread level

    The range of sensory block level in ESPB group was evaluated as dermatomal after the effect of spinal anesthesia passed, at 4-6th hours with pin-prick test.

    Measured: 4-6th hours

Timeline

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

  1. First posted25 Jan 2023
  2. Study start1 May 2020
  3. Primary completion6 Jun 2021
  4. Study completion1 Feb 2022

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
Supportive care
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
116 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05695625
Sponsor's protocol ID
AnkaraU-CS-ESPB
Status last verified
Jan 2023
First submitted
13 Jan 2023
Last updated
25 Jan 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Spinal anesthesia + bilateral erector spine plane block and Spinal anesthesia in people with Pain, Postoperative, run by Ankara University at 1 site in Turkey (Türkiye).

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 1 inclusion and 1 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: finished, as of the sponsor's last update on 25 Jan 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Postoperative pain (time frame: 24 hours). 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 25 Jan 2023.

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