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Neostigmine as an Adjuvant in Tranversus Abdominis Plane (TAP) Block in Cesarean Section Under Spinal Anesthesia

Efficacy of Neostigmine as an Adjuvant to Bupivacaine in Ultrasound-guided Transversus Abdominis Plane Block as a Postoperative Analgesia After Caesarean Delivery.

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05785377
Acronym
TAB
Enrollment
58
Registered
2023-03-27
Start date
2027-12-01
Completion date
2029-12-01
Last updated
2026-02-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Analgesia

Brief summary

Cesarean birth is a common surgical procedure. After cesarean birth, postsurgical pain may delay recovery, interfere with maternal-newborn bonding, and reduce the breastfeeding if not adequately controlled. Postpartum analgesia has become a common concern. Many adjuvant drugs used for peripheral nerve blocks as( N-methyl-d-aspartate (NMDA) receptor antagonists , Magnesium , Ephedrine , Dexamesathone , Fentanyl , Midazolam and Neostigmine) The potential of neostigmine as an adjuvant in peripheral nerve block is through its action to increase acetylcholine at muscarinic junctions of peripheral nerves. 500 mcg neostigmine was used as adjuvant to local anesthetic in an axillary brachial plexus block leads to decreased pain and less use of analgesics in the first 24 hours postoperatively with no incidence of adverse effects.

Detailed description

This prospective double-blinded randomized controlled study will be done on parturients that are scheduled for elective cesarean delivery under spinal anesthesia to assess the efficacy of neostigmine as an adjuvant to isobaric bupivacaine inTranversus abdominis plane (TAPB) for postoperative analgesia in cesarean section under spinal anesthesia.

Interventions

DRUGBupivacaine-Neostigmine

20 mL bupivacaine 0.25% plus 1 mL Neostigmine (500 mcg)

DRUGBupivacaine

20 mL bupivacaine 0.25% plus 1 mL normal saline 0.9%

Sponsors

Mansoura University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Investigator)

Masking description

The injectate used for TAPB will be prepared according to the group by an anesthesiologist who won't be involved in the data collection

Intervention model description

according to the computer-generated random number codes that will be placed in sealed envelopes, the patients will be randomly allocated into two groups; Group-B and Group-BN according tho the local anesthetic injected in Ultrasound-guided bilateral Tranversus abdominis plane block

Eligibility

Sex/Gender
FEMALE
Age
19 Years to 40 Years
Healthy volunteers
No

Inclusion criteria

* Age from 19 to 40 years old * American Society of Anesthesiologists (ASA) physical status II patients * Singleton pregnancies with a gestational age of at least 37 weeks. * Patients undergoing spinal anesthesia for cesarean delivery via a Pfannenstiel incision with exteriorization of the uterus.

Exclusion criteria

* Age \< 19 or \> 40 years. * Height\<150 cm, weight \< 60 kg, body mass index (BMI) ≥40 kg/m2. * Inability to comprehend or participate in the pain scoring system. * Contraindications to spinal anesthesia (Coagulopathy, increased intracranial pressure, or local skin infection). * Hypersensitivity to any drug used in the study. * Any hypertensive disorders of pregnancy. * Renal impairment or other contraindications to non-steroidal anti-infilamatory drugs (NSAIDS). * Significant cardiovascular, renal or hepatic abnormalities. * Patients with history of opioid intake, drug abusers or psychiatric patients

Design outcomes

Primary

MeasureTime frameDescription
The time of the first postoperative analgesic requirementduring the first 24 postoperative hoursduring the first 24 postoperative hours

Secondary

MeasureTime frameDescription
Total amount of the postoperative analgesic drugs (ketolac, paracetamol and fentanyl) consumed in theduring the first 24 postoperative hoursmg
The visual analog scale (VAS) scores during restduring the first 24 postoperative hours11-point VAS (where 0 for no pain and 10 for the worst possible pain) at 0, 2, 4,6,12 and 24 hours postoperatively
The visual analog scale (VAS) scores during movementduring the first 24 postoperative hours11-point VAS (where 0 for no pain and 10 for the worst possible pain) at 0, 2, 4,6,12 and 24 hours postoperatively
Mean arterial blood pressure (MBP)basal (preoperative), intraoperative each 10 minutes and postoperatively every hour during first 6 hoursmmHg
heart rate (HR)basal (preoperative), intraoperative each 10 minutes and postoperatively every hour during first 6 hoursbeat per minute
Patient satisfaction about the quality of postoperative analgesiaduring the first 24 postoperative hourspoor = 1, fair = 2, good = 3, excellent = 4
The side effects (nausea, vomiting, abdominal colic and lower limb weakness)during the first 24 postoperative hoursincidence
the time from intrathecal injection till regression of spinal anesthesia to L2 dermatomeduring the first 24 postoperative hours

Countries

Egypt

Contacts

CONTACTMaha AboZeid, MD
mahazed@mans.edu.eg02-01019216192

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 18, 2026