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Postoperative PainPhase 4NCT02477098

Preoperative Versus Postoperative Ultrasound-guided Rectus Sheath Block for Sleep Quality and Cytokines of Patients

A Phase 4 study testing preoperative 0.5% ropivacaine hydrochloride preoperative and postoperative 0.5% Ropivacaine hydrochloride in people with Postoperative Pain, run by China Medical University, China at 1 site in China.

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

Rectus sheath block (RSB) is used for postoperative pain relief in patients undergoing abdominal surgery with a midline incision. It has proved to be effective in preoperative block, but it has not been previously compared with postoperative block. Read more about this study

Who is it for?
Ages 18 to 65 years, women only
Conditions the study is for
Postoperative Pain
What is being tested?
preoperative 0.5% ropivacaine hydrochloride preoperative and postoperative 0.5% Ropivacaine hydrochloride
Could I receive a placebo?
No, everyone receives an active treatment
How many people
77 participants
Where
1 siteChina
Study dates
Oct 2015to Jun 2016
Phase
Phase 4
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 65 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

The inclusion criteria are as follows: (1) an age of 18 to 65 years old; (2) scheduled to undergo elective midline incision transabdominal gynaecological surgery for benign mass; and (3) American Society of Anaesthesiologists (ASA) risk classification I-II.

The exclusion criteria are as follows: (1) patient refusal; (2) known hypersensitivity to the study medication (ropivacaine); (3) long-term use of opioids; (4) liver or renal insufficiency; (5) a history of psychiatric or neurological disease; (6) deafness; (7) previous open surgery; (8) regular use of acetaminophen, nonsteroidal anti-inflammatory drugs, corticosteroids, or antiemetics; and (9) a preoperative Pittsburgh Sleep Quality Index (PSQI) global score of higher than 6

Trial locations and contacts

1 site in 1 country.

China1 site
  • the First Hospital of China Medical University

    Shenyang, Liaoning, 110001

Other trials in China

About this study

Official title: Preoperative Versus Postoperative Ultrasound-guided Rectus Sheath Block for Improving Pain, Sleep Quality and Cytokine Levels of Patients With Open Midline Incisions Undergoing Transabdominal Gynaecological Operation

Rectus sheath block (RSB) is used for postoperative pain relief in patients undergoing abdominal surgery with a midline incision. It has proved to be effective in preoperative block, but it has not been previously compared with postoperative block. The aim of the present study is to evaluate postoperative pain, sleep quality and changes in the cytokine levels of patients undergoing gynaecological surgery with RSB performed preoperatively versus postoperatively.

Read the detailed description

Rectus sheath block (RSB) is used for postoperative pain relief in patients undergoing abdominal surgery with a midline incision. It has proved to be effective in preoperative block, but it has not been previously compared with postoperative block. The aim of the present work is to evaluate the postoperative sleep quality and changes in cytokines of patients undergoing gynaecological operation with RSB preoperatively or postoperatively.

Methods/Design This study is a prospective, randomized, controlled (randomized, parallel group, concealed allocation), double-blinded trial. All patients undergoing transabdominal gynaecological operation will be randomized 1:1 to the treatment intervention with general anaesthesia as an adjunct to RSB preoperatively or postoperatively. The objective of the trial is to evaluate the postoperative sleep quality and changes in cytokines of patients undergoing hysterectomy with RSB preoperatively (n=32) or postoperatively (n=32). All of the patients, irrespective of group allocation, will receive patient-controlled intravenous analgesia with oxycodone.

The primary objective is to compare the interval between leaving the post-anaesthesia care unit and receiving the first PCIA bolus injection on the first postoperative night between patients who receive preoperative versus postoperative RSB. The secondary objectives will be to compare (1) cumulative oxycodone consumption at 24 h after surgery; (2) postoperative sleep quality, as measured using a BIS-Vista monitor during the first night after surgery; and (3) cytokine levels (interleukin-1, interleukin-6, tumour necrosis factor-α and interferon-gamma) during surgery and at 24 and 48 h postoperatively.

Being tested
preoperative 0.5% ropivacaine hydrochloride preoperative, postoperative 0.5% Ropivacaine hydrochloride
Keywords
rectus sheath block, cytokines, sleep
Medical subject headings
Pain, Postoperative

What participants receive

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

  • preoperative 0.5% ropivacaine hydrochloride preoperativeDrug

    Also called preoperative rectus sheath block of 0.5% Ropivacaine hydrochloride

    Before surgery (Pre RSB) , a bilateral RSB with ropivacaine hydrochloride will be performed under ultrasound guidance by one anaesthesiologist.At the end of surgery, a bilateral RSB with saline will be performed under ultrasound guidance by one anaesthesiologist.

  • postoperative 0.5% Ropivacaine hydrochlorideDrug

    Also called Rectus sheath block of 0.5% Ropivacaine hydrochloride

    Before surgery, a bilateral RSB with saline will be performed under ultrasound guidance by one anaesthesiologist.At the end of surgery, a bilateral RSB with ropivacaine hydrochloride will be performed under ultrasound guidance by one anaesthesiologist.

Study groups in NCT02477098
Study groupRoleWhat they receive
Pre RSBExperimentalpatients who receive preoperative rectus sheath block of ropivacaine hydrochloride and receive postoperative rectus sheath block of saline
Receives: Drug: preoperative 0.5% ropivacaine hydrochloride preoperative
Post RSBExperimentalpatients who receive preoperative rectus sheath block of saline and receive postoperative rectus sheath block of Ropivacaine hydrochloride
Receives: Drug: postoperative 0.5% Ropivacaine hydrochloride

What is being measured

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

  1. the interval between leaving the post-anaesthesia care unit (PACU) and receiving the first PCIA bolus injection

    The primary objective is to compare the interval between leaving the post-anaesthesia care unit (PACU) and receiving the first PCIA bolus injection on the first postoperative night between patients who receive preoperative RSB and those who receive postoperative RSB.

    Measured: postoperative 24 hours

Secondary outcomes (3)
  1. postoperative pain

    cumulative oxycodone consumption at 24 h after surgery between patients who receive preoperative versus postoperative RSB

    Measured: postoperative 24 hours

  2. postoperative sleep quality

    postoperative sleep quality, which will be measured using a BIS-Vista monitor during the first night after surgery

    Measured: postoperative 24 hours

  3. cytokine levels

    c)cytokine levels (interleukin-6, tumour necrosis factor-α, interleukin-1 and interferon-gamma ) during the operation and at 24 and 48 hours postoperatively.

    Measured: postoperative 24 and 48 hours

Timeline

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

  1. First posted22 Jun 2015 (estimated)
  2. Study startOct 2015
  3. Primary completionJun 2016
  4. Study completionJun 2016

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
77 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02477098
Sponsor's protocol ID
2015110901
Status last verified
Jun 2016
First submitted
15 Jun 2015
Last updated
20 Jun 2016
Results posted
No
Data monitoring committee
Yes

Publications

  • Jin F, Li Z, Tan WF, Ma H, Li XQ, Lu HW. Preoperative versus postoperative ultrasound-guided rectus sheath block for improving pain, sleep quality and cytokine levels in patients with open midline incisions undergoing transabdominal gynecological surgery: a randomized-controlled trial. BMC Anesthesiol. 2018 Feb 9;18(1):19. doi: 10.1186/s12871-018-0485-9.

    PubMed 29426287
  • Jin F, Li XQ, Tan WF, Ma H, Lu HW. Preoperative versus postoperative ultrasound-guided rectus sheath block for improving pain, sleep quality and cytokine levels of patients with open midline incisions undergoing transabdominal gynaecological operation: study protocol for a randomised controlled trial. Trials. 2015 Dec 10;16:568. doi: 10.1186/s13063-015-1096-0.

    PubMed 26652009

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing preoperative 0.5% ropivacaine hydrochloride preoperative and postoperative 0.5% Ropivacaine hydrochloride in people with Postoperative Pain, run by China Medical University, China at 1 site in China.

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

Who may be eligible to take part?

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 20 Jun 2016. 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 China. 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

the interval between leaving the post-anaesthesia care unit (PACU) and receiving the first PCIA bolus injection (time frame: postoperative 24 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02477098, which also lists 2 linked publications.

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 20 Jun 2016.

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