Arterial CatheterizationNCT06658873
Proximal vs Distal Radial Artery Cannulation
A study testing Proximal arterial cannulation and Distal arterial cannulation in people with Arterial Catheterization and Radial Artery Cannulation, run by Marmara University at 1 site in Turkey (Türkiye).
Trial summary
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. Read more about this study
- Who is it for?
- Ages 18 to 75 years
- Conditions the study is for
- Arterial Catheterization, Radial Artery Cannulation
- What is being tested?
- Proximal arterial cannulation and Distal arterial cannulation
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 60 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 25 Oct 2024to 30 Jun 2025
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Elective surgery
- American Society of Anaesthesiologists (ASA) physical status I-III
Who cannot join
- Emergency surgery
- ASA IV or above
- Peripheral vascular disease
- Vasopressor use
- Anatomical abnormality at the cannulation site
- Infection at the cannulation site
- Coagulation defect
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Marmara University Pendik Training and Research Hospital
Istanbul, Istanbul, 34899
About this study
Official title: Comparison of Proximal and Distal Cannulation of the Radial Artery by Ultrasonography in Adult Patients Undergoing Elective Surgery
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 terms of procedural success, procedure time and complications.
Read the detailed description
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 by closed envelope method. The first group will be the patients who will be cannulated at the level of the distal radius (styloid process) and the second group will be the patients who will be cannulated proximally by measuring 5 cm from the styloid process. 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.
- Being tested
- Proximal arterial cannulation, Distal arterial cannulation
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Proximal arterial cannulationOther
Radial arterial cannulation from the proximal part of the artery 5 cm proximal to the level of the styloid process.
Distal arterial cannulationOther
Radial arterial cannulation from the distal part of the artery at the styloid process.
| Study group | Role | What they receive |
|---|---|---|
| Group P | Active comparator | Radial arterial cannulation from the proximal part of the artery 5 cm proximal to the level of the styloid process. Receives: Other: Proximal arterial cannulation |
| Group D | Active comparator | Radial arterial cannulation from the distal part of the artery at the styloid process. Receives: Other: Distal arterial cannulation |
What is being measured
The primary outcome is the main question the study is designed to answer.
Success
Radial artery catheterization success rates will be compared between the groups.
Measured: From the preinduction period in the operating theater to the postoperative day one.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted26 Oct 2024
- Study start25 Oct 2024
- Primary completion30 Jun 2025
- Study completion30 Jun 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Arterial CatheterizationStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Outcomes assessor
- Enrolment
- 60 participants (actual)
Sponsor and investigators
- Lead sponsor
- Marmara University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Ruslan Abdullayev, Marmara University
- Investigators
- Ruslan Abdullayev, Principal investigator, Marmara University Department of Anesthesiology and Reanimation
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06658873
- Sponsor's protocol ID
- 09.2024.653
- Status last verified
- Jun 2025
- First submitted
- 24 Oct 2024
- Last updated
- 3 Jul 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 3 Jul 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of Proximal and Distal Cannulation of the Radial Artery by Ultrasonography in Adult Patients Undergoing Elective Surgery
- ClinicalTrials.gov ID
- NCT06658873
- Acronym / sponsor ID
- 09.2024.653
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 60 participants (actual)
- Lead sponsor
- Marmara UniversityUniversity, hospital or other
- Study start
- 25 Oct 2024 (actual)
- Primary completion
- 30 Jun 2025 (actual)
- Study completion
- 30 Jun 2025 (actual)
- First posted
- 26 Oct 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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 terms of procedural success, procedure time and complications.
Detailed description
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 by closed envelope method. The first group will be the patients who will be cannulated at the level of the distal radius (styloid process) and the second group will be the patients who will be cannulated proximally by measuring 5 cm from the styloid process. 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.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Group P | Active comparator | Other: Proximal arterial cannulationRadial arterial cannulation from the proximal part of the artery 5 cm proximal to the level of the styloid process. |
| Group D | Active comparator | Other: Distal arterial cannulationRadial arterial cannulation from the distal part of the artery at the styloid process. |
Who may qualify
- Ages
- 18 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Elective surgery
- American Society of Anaesthesiologists (ASA) physical status I-III
Key exclusion criteria (7 listed)
- Emergency surgery
- ASA IV or above
- Peripheral vascular disease
- Vasopressor use
- Anatomical abnormality at the cannulation site
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Proximal arterial cannulationRadial arterial cannulation from the proximal part of the artery 5 cm proximal to the level of the styloid process. | Other | Group P |
| Distal arterial cannulationRadial arterial cannulation from the distal part of the artery at the styloid process. | Other | Group D |
Primary outcome
Success
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.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Jul 2025.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Ruslan Abdullayev principal investigator
Marmara University Department of Anesthesiology and Reanimation
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Proximal arterial cannulation and Distal arterial cannulation in people with Arterial Catheterization and Radial Artery Cannulation, run by Marmara University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 3 Jul 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Success (time frame: From the preinduction period in the operating theater to the postoperative day one.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Jul 2025.