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NCT Number: NCT07062861

Proximal and Distal Radial Artery Cannulation in Children

Intraarterial cannulation is important for continuous blood pressure monitoring and blood gas analysis throughout the surgical procedure and in intensive care patients. Ultrasonography (USG) has gained popularity in vascular cannulations and facilitates intraarterial interventions. Radial artery is one of the most preferred arteries. Our aim in this study is to compare proximal and distal radial artery cannulations by USG in pediatric patients in terms of procedural success, procedure time and complications.

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Key information

Conditions

Arterial Catheterization Radial Atrery Cannulation

Age range

4 year–14 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Marmara University Pendik Training and Research Hospital

Istanbul, 34912, Turkey (Türkiye)

About this study

After the patients are admitted to the operating room, routine monitoring (electrocardiography, noninvasive blood pressure and peripheral oxygen saturation) will be performed. After appropriate vascular access is provided to the patients, the induction phase of general anesthesia will begin. Anesthesia induction will be left to the choice of the primary anesthesiologist and no protocol will be followed. In case of >25% drop in blood pressure, 0.1 mcg/kg noradrenaline will be administered intravenously. After the appropriate position is given to the arm of the patient to be treated, radial artery cannulation will be performed with USG obeying asepsis rules. Patients will be divided into 2 groups. The first group will be the patients who will be cannulated at the level of the distal radius (styloid process). For the second group, proximal radial artery cannulation will be performed proximally from the styloid process by measuring 1 cm in patients under 20 kg, 2 cm between 20-30 kg, 3 cm between 30-40 kg, 4 cm between 40-50 kg, and 5 cm in patients over 50 kg. Demographic and clinical characteristics of the patients will be recorded. Catheterization success rates, procedure duration, number of interventions, vessel diameter, hematoma at the site of intervention on the 1st postoperative day, circulatory disturbance will be examined.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • PEDIATRIC patients undergoing elective surgery
  • ASA I-III physical status

Exclusion criteria

  • Refusal to participate in the study
  • Those with peripheral vascular disease
  • Vasopressor drug users
  • Infection or anatomical defects at the site of the procedure
  • Patients with coagulation disorders

Treatment and study plan

Primary outcomes

  1. Success rate

    Time frame: From the preinduction period in the operating theater to the postoperative day one.

    Radial artery catheterization success rates will be compared between the groups.

Sponsors and collaborators

Lead sponsor

Marmara University

Other

Registry information

Official study title

Comparison of Proximal and Distal Cannulation of the Radial Artery by Ultrasonography in Pediatric Patients Undergoing Elective Surgery

Important dates

Study start
2025
Primary completion
2026
Study completion
2026
First posted
Jul 14, 2025
Registry last updated
Apr 29, 2026

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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