Using femoral artery Doppler to predict successful caudal block

Accuracy of the Change in Femoral Artery Doppler Indices as Novel Predictors to Successful Caudal Block in Pediatric Patients a Prospective Observational Study

Observational Cairo University · NCT06981780

This study is testing if checking blood flow in the femoral artery can help doctors predict if a caudal block will work well for patients having lower abdominal or leg surgery.

Quick facts

Study typeObservational
Enrollment40 (estimated)
Ages2 Years to 8 Years
SexAll
SponsorCairo University Academic / other
Locations1 site (Cairo, Giza Governorate)
Trial IDNCT06981780 on ClinicalTrials.gov

What this trial studies

This observational study aims to determine if changes in femoral artery Doppler indices can accurately predict the success of a caudal block. Participants will undergo Doppler examinations of the femoral artery at baseline and then again 15 and 30 minutes after the administration of the caudal block. The study will include patients undergoing lower abdominal or lower limb surgery, and informed consent will be obtained prior to participation. The goal is to improve the predictive methods for successful caudal block administration.

Who should consider this trial

Good fit: Ideal candidates for this study are patients classified as ASA1 or ASA2 who are scheduled for lower abdominal or lower limb surgery.

Not a fit: Patients with allergies to bupivacaine, coagulopathy, or those unable to provide adequate femoral artery views will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance the accuracy of predicting successful caudal blocks, leading to better pain management for patients undergoing surgery.

How similar studies have performed: While this approach is innovative, it has not been extensively tested in previous studies, making it a novel investigation.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* ASA1 or 2 lower abdominal or lower limb surgery

Exclusion Criteria:

* allergy to bupivacaine parental refusal coagulopathy inability to obtain adequate femoral artery views

Where this trial is running

Cairo, Giza Governorate

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Caudal BlockFemoral artery DopplerPulsatility indexCaudal block
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.