Effect of TAP Block on Time Required for First Analgesic Dose After Cesarean Cection Under Spinal Anesthesia

  • days left to enroll
  • participants needed
  • sponsor
    Ain Shams Maternity Hospital
Updated on 13 January 2021


While opioids are the mainstay for post-operative analgesia after caesarean section, they are associated with various side effects. Ultrasound guided transversusabdominis plane (TAP) block has been postulated to provide effective analgesia for caesarean section. However a new technique in TAP block is described which can be used safely by a beginner without any fear of complication whichwill help in providing good postoperative analgesia to maximumnumber of patients.

This study will evaluate the analgesic efficacy of TAP block using Modified Surgeon Assisted Bilateral TAP block for post caesarean analgesia in a randomized controlled trial.


Acute severe pain after cesarean delivery is frequent. At least 10 to 15% of the women develop chronic pain .Effective postoperative analgesia after caesarean section is important because it enables early ambulation and facilitates breast-feeding.

The administration of opioids, local blocks and other analgesic medication is instituted to decrease the duration and intensity of postoperative pain as a part of a multimodal analgesic regimen. The transversusabdominis plane (TAP) block is a regional analgesic technique which blocks T6-L1 nerve branches and has an evolving role in postoperative analgesia for lower abdominal surgeries .

In postoperative analgesia, efficacy of TAP block is equivalent to morphine with the additional benefits of increasing duration of analgesia, reducing postoperative opioid usage, with satisfactory pain relief and few side effects.

The TAP block avoids the risk of neuraxial complications and opioid complications in all patients. TAP block the neural afferents of theanterior abdominal wall after spreading of the local anesthetic agent in the neurofascial plan between the internal oblique and transversusabdominis muscle.

TAP block has been underutilized in spite of having very low complication and high success rate using ultrasound technique This may be due to the lack of availability of ultrasound at most of the centers, lack of training in ultrasound guided block technique.

A new technique can be used in TAP block without the fear of complications in the blind landmark based approach.The advantage of this technique includes avoiding missing the second pop in obese and pregnant patients due to thinning of the internal obliqueaponeurosis, reposition of the needle by surgeon if one enters the peritoneal cavity accidentally. Also there are nil chances of visceral injury thus can be safely used by a beginner without any fear of complication. However, there might be a chance of needle stick injury to the surgeon's hand.

This study aims to evaluate effect of the Modified Surgeon Assisted Bilateral TAP block on time required for first analgesic dose after Cesarean Section under spinal anesthesia

Treatment Transversus abdominus plane block, Transversus abdominus plane placebo
Clinical Study IdentifierNCT04623632
SponsorAin Shams Maternity Hospital
Last Modified on13 January 2021

Adding a note
adding personal notes guide

Select a piece of text and start making personal notes.


Yes No Not Sure

Inclusion Criteria

Is your age between 18 yrs and 40 yrs?
Are you female?
Do you have any of these conditions: Do you have Evaluate Effect of the Modified Surgeon Assisted Bilateral TAP Block on Time Required for First Analgesic Dose After Cesarean Section Under Spinal Anesthesia??
Do you have any of these conditions: Evaluate Effect of the Modified Surgeon Assisted Bilateral TAP Block on Time Required for First Analgesic Dose After Cesarean Section Under Spinal Ane...?
Do you have any of these conditions: Evaluate Effect of the Modified Surgeon Assisted Bilateral TAP Block on Time Required for First Analgesic Dose After Cesarean Section Under Spinal Ane...?
American Society of Anesthesiologists (ASA) class I-II
Normal singleton pregnancy
With a gestational age of completed 37 weeks or more
Category V cesarean section

Exclusion Criteria

Under the age of 18 or older than 40 years
Obese patients with a BMI >40\
ASA III or ASA IV risk groups
Patients with contraindications to spinal anesthesia or history of allergy to bupivacaine
patients who received analgesics in the past 24 hours
Infection in the region where the block would be performed
Category - - cesarean section
Refusal to participate in the study
Clear my responses

How to participate?

Step 1 Connect with a site
What happens next?
  • You can expect the study team to contact you via email or phone in the next few days.
  • Sign up as volunteer to help accelerate the development of new treatments and to get notified about similar trials.

You are contacting

Investigator Avatar

Primary Contact


Phone Email

Please verify that you are not a bot.
Step 2 Get screened

Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

Learn more
Step 3 Enroll in the clinical study

If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

Learn more
Step 4 Get your study results

Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

Learn more

Similar trials to consider


Not finding what you're looking for?

Every year hundreds of thousands of volunteers step forward to participate in research. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.

Sign up as volunteer


user name

Annotated by • 



Reply by • Private

Lorem ipsum dolor sit amet consectetur, adipisicing elit. Ipsa vel nobis alias. Quae eveniet velit voluptate quo doloribus maxime et dicta in sequi, corporis quod. Ea, dolor eius? Dolore, vel!

  The passcode will expire in None.

No made yet