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Superior Hypogastric Plexus BlockNCT03428152

Superior Hypogastric Blockade for Postoperative Pain

An observational study of Superior Hypogastric Plexus Block and Hysterectomy, run by Derince Training and Research Hospital 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

The primary indication for superior hypogastric (SHP) block is visceral pelvic pain, most commonly from malignancy of the ovary, uterus, cervix, bladder, rectum or prostate. Percutaneous SHP blocks should be done under guidance of ultrasonography, fluoroscopy, magnetic resonance or computed tomography. Read more about this study

Who is it for?
Ages 18 to 65 years, women only
What is being tested?
superior hypogastric block
Type of treatment
Surgery or procedure
How many people
78 participants
Where
1 siteTurkey (Türkiye)
Study dates
9 Feb 2018to 24 Jul 2018
How long will I take part?
2 Days
Phase
Observational
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

Study population: The patients who are scheduled for elective hysterectomy under general anesthesia.

Who may be able to join

  • ASA I - II
  • Elective hysterectomy

Who cannot join

  • ASA III
  • Different kind of surgery
  • Known allergy to local anesthetic drugs
  • Different analgesia protocol (ie: epidural, TAP block,..)
  • Refusal of the patient

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Derince Training and Research Hospital

    Kocaeli, Derince, 41900

Other trials in Turkey (Türkiye)

About this study

Official title: The Efficacy of Superior Hypogastric Blockade for Postoperative Pain

The primary indication for superior hypogastric (SHP) block is visceral pelvic pain, most commonly from malignancy of the ovary, uterus, cervix, bladder, rectum or prostate. Percutaneous SHP blocks should be done under guidance of ultrasonography, fluoroscopy, magnetic resonance or computed tomography. Because of the close proximity of SHP to major vessels, and structures like vertebral column (for posterior) and guts (for anterior) are being on the way of the needle, these percutaneous blocks are associated with serious complications. Performing SHP during hysterectomy surgery, gives advantages to rule out these complications by exploring the whole intraabdominal anatomy.

The investigators' theory is to find out if SHP blocks (during pelvic surgery) are useful for decreasing VAS pain scores and opioid consumption for postoperative pain.

Read the detailed description

Nerve blocks are frequently used in daily practice as an anesthetic and analgesia technique for surgery, postoperative pain and chronic pain. Total abdominal hysterectomy causes significant postoperative pain. Epidural blocks are frequently preferred for postoperative pain control, since most of the anesthetists are skilled with neuraxial blocks. However, an epidural catheter placement and epidural injections have some side effects and complications.

Pelvis is innervated by thoracolumbar and sacral segments. Autonomic (sympathetic and parasympathetic) and somatic (motor and sensory) nerves provide innervation of pelvis. The sympathetic nervous system, which transmits nociceptive messages from the viscera to brain, plays an important role in the transmission of visceral pain. Generally, in order to block transmission of nociceptive information from the pelvic viscera to the spinal cord, interruption of sympathetic pathways will be necessary. The sympathetic nerve block on the sympathetic nervous system for the management of chronic pelvic pain has been proposed at three main levels: ganglion impar, hypogastric plexus and L2 lumbar sympathetic blocks. By following the pelvic anatomy, there could be an alternative way for acute pain relief for abdominal hysterectomy: superior hypogastric block.

The superior hypogastric plexus lies retroperitoneally in front of L4 as a bunch of fibers. As these fibers descend, at the level of L5 they divide into the hypogastric nerves. The hypogastric nerves pass downward from L5-S1, following the concave curve of the sacrum and passing on each side of the rectum to form the inferior hypogastric plexus. These nerves continue their down¬ward course along each side of the bladder to provide innervation to the pelvic viscera and vasculature.

The primary indication for superior hypogastric block (SHNB) is visceral pelvic pain, most commonly from malignancy of the ovary, uterus, cervix, bladder, rectum or prostate. Percutaneous SHP blocks can be done by using posterior approach (transdiscal) and paravertebral) and anterior techniques. All of these interventions should be done under guidance of ultrasonography, fluoroscopy, magnetic resonance or computed tomography. Because of the close proximity of SHP to major vessels, and structures like vertebral column (for posterior) and guts (for anterior) are being on the way of the needle, these percutaneous blocks are associated with complications.

SHP block has been performed by anesthetists or surgeons in Kocaeli Derince Training and Research Hospital regularly since they have discovered the advantages of this block technique. Performing SHP block during hysterectomy surgery, gives advantages to rule out these complications by exploring the whole intraabdominal anatomy. Based on the complexity of the pelvic innervation, SHP blocks do not offer a total painless period like central neuraxial blocks for sure. If SHP block is performed in patients who do not have epidural catheters, it can be useful to decrease postoperative pain scores and opioid or NSAID consumption significantly.

Being tested
superior hypogastric block
Keywords
superior hypogastric plexus block, hysterectomy, postoperative pain
Medical subject headings
Pain, Postoperative, Genital Diseases, Female

What participants receive

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

  • superior hypogastric blockProcedure or surgery

    superior hypogastric blockade during surgery

Study groups in NCT03428152
Study groupRoleWhat they receive
HypoThe participants with a superior hypogastric block
Receives: Procedure: superior hypogastric block
NoHypoThe participants without a superior hypogastric block; the patients with an epidural catheter, who receive a different block technique (ie: TAP block), or who are unsuitable for SHP block (ie: if retro-peritoneum is opened intraoperatively by the surgeon)

What is being measured

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

  1. Postoperative Pain Scores

    Patients' pain scores will be scored with a 10 cm Visual Analogue Scale (VAS). Each will be scored between 0-10 (0: no pain; 10: worst pain ever) (PACU: Post-anesthesia care unit) VAS-PACU: VAS scores at PACU VAS 1: VAS scores at postoperative 1st hour (ward) VAS 6: VAS scores at postoperative 6th hour (ward) VAS 12: VAS scores at postoperative 12th hour (ward) VAS 24: VAS scores at postoperative 24th hour (ward) VAS 48: VAS scores at postoperative 48th hour (ward)

    Measured: postoperative 48 hour follow-up (PACU and ward)

  2. Postoperative Analgesic Consumption

    Total number of non-steroid anti-inflammatory drug (NSAID) and opioid vials that are applied to patients in post-anesthesia care unit (PACU) and at ward will be recorded.

    Target VAS score for NSAID is >4; if there is no response to NSAID and pain is worsening opioid drugs will be applied (this is our routine clinical practice) NSAID: Diclofenac sodium 75mg per vial; opioid: Tramadol 100mg per vial.

    Measured: postoperative 48 hour follow-up (PACU and ward)

Secondary outcomes (4)
  1. Rescue Analgesic Time

    Time to first analgesic demand at gynecology ward (after transfer from PACU to gynecology ward)

    Measured: 48 hours (time to the first analgesic demand will be recorded)

  2. Duration of Operation

    the time from the the first incision to the skin to skin closure.

    Measured: from the induction of anesthesia and the end of the surgery

  3. Length of Hospital Stay

    length of hospital stay time will be recorded

    Measured: assessed up to 1 week

  4. Number of Participants With Complications Due to SHP Block

    intra/postoperative complications will be noted. (post-operative nausea and vomiting (PONV) or others: ie: intra-vascular local anesthetic injection, vascular puncture, hemodynamical changes after injection,.. )

    Measured: From the SHP block time (intraoperative) until discharge

Timeline

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

  1. First posted9 Feb 2018
  2. Study start9 Feb 2018
  3. Primary completion23 Jul 2018
  4. Study completion24 Jul 2018

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
78 participants (actual)
Target duration
2 Days
IDs, dates and publications
ClinicalTrials.gov ID
NCT03428152
Sponsor's protocol ID
U1111-1205-2226
Status last verified
Feb 2024
First submitted
30 Jan 2018
Last updated
13 Mar 2024
Data monitoring committee
No
Individual data sharing
No: The investigators do not prefer to share the study plan and records.

Publications

  • Plancarte R, de Leon-Casasola OA, El-Helaly M, Allende S, Lema MJ. Neurolytic superior hypogastric plexus block for chronic pelvic pain associated with cancer. Reg Anesth. 1997 Nov-Dec;22(6):562-8.

    PubMed 9425974
  • de Leon-Casasola OA, Kent E, Lema MJ. Neurolytic superior hypogastric plexus block for chronic pelvic pain associated with cancer. Pain. 1993 Aug;54(2):145-151. doi: 10.1016/0304-3959(93)90202-Z.

    PubMed 8233527
  • Sindt JE, Brogan SE. Interventional Treatments of Cancer Pain. Anesthesiol Clin. 2016 Jun;34(2):317-39. doi: 10.1016/j.anclin.2016.01.004.

    PubMed 27208713
  • Choi JW, Kim WH, Lee CJ, Sim WS, Park S, Chae HB. The Optimal Approach for a Superior Hypogastric Plexus Block. Pain Pract. 2018 Mar;18(3):314-321. doi: 10.1111/papr.12603. Epub 2017 Jul 6.

    PubMed 28520297
  • Turker G, Basagan-Mogol E, Gurbet A, Ozturk C, Uckunkaya N, Sahin S. A new technique for superior hypogastric plexus block: the posteromedian transdiscal approach. Tohoku J Exp Med. 2005 Jul;206(3):277-81. doi: 10.1620/tjem.206.277.

    PubMed 15942158
  • Erdine S, Yucel A, Celik M, Talu GK. Transdiscal approach for hypogastric plexus block. Reg Anesth Pain Med. 2003 Jul-Aug;28(4):304-8. doi: 10.1016/s1098-7339(03)00191-3.

    PubMed 12945023
  • Rapp H, Ledin Eriksson S, Smith P. Superior hypogastric plexus block as a new method of pain relief after abdominal hysterectomy: double-blind, randomised clinical trial of efficacy. BJOG. 2017 Jan;124(2):270-276. doi: 10.1111/1471-0528.14119. Epub 2016 Jun 12.

    PubMed 27292167
  • Aytuluk HG, Kale A, Astepe BS, Basol G, Balci C, Colak T. Superior Hypogastric Plexus Blocks for Postoperative Pain Management in Abdominal Hysterectomies. Clin J Pain. 2020 Jan;36(1):41-46. doi: 10.1097/AJP.0000000000000767.

    PubMed 31567396

Questions about this trial

What is this clinical trial studying?

An observational study of Superior Hypogastric Plexus Block and Hysterectomy, run by Derince Training and Research Hospital 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 2 inclusion and 5 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 13 Mar 2024. 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?

Yes. Results are posted in the registry (first posted 3 Jun 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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 Scores (time frame: postoperative 48 hour follow-up (PACU and ward)). The study lists 2 primary outcomes in all. 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 NCT03428152, which also lists 8 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 13 Mar 2024.

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