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Completed

NCT Number: NCT06981780

Change in Femoral Artery Doppler to Predict Successful Caudal Block

The ideal method to predict successful caudal block is still lacking. We hypothesized that the change in femoral artery Doppler indices could accurately predict successful caudal block

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Key information

Conditions

Caudal Block

Age range

2 year–8 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Cairo University

Cairo, Giza Governorate, 6890, Egypt

About this study

after institutional research ethics committee approval and obtaining informed consent from each participant. an experienced operator will examine the femoral artery using pulsed wave Doppler at baseline and 15 and 30 minutes after caudal block adminestration

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Femoral artery Doppler

Device

An experienced operator will conduct femoral artery examination for the change in Doppler indices namely pulsatility index, resisitive index, and waveform morphology

Primary outcomes

  1. Accuracy of Change in pulsatility index (PI) to predict successful caudal block

    Time frame: baseline and 15 minutes after the block

    The change in PI measured at baseline and 15 minutes after the block

Secondary outcomes

  1. Accuracy of the change in resistive index to successful caudal block

    Time frame: baseline and 15 minutes

    The change in RI at baseline and 15 minutes after the block

  2. accuracy of change in waveform morphology to predict successful caudal block

    Time frame: baseline and 15 minutes after the block

    The change in femoral artery waveform from triphasic to a monophasic wave

Sponsors and collaborators

Lead sponsor

Cairo University

Other

Registry information

Official study title

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

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
May 21, 2025
Registry last updated
Aug 27, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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