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Distal vs. Forearm Radial Artery Access

Distal Radial Artery Access in Comparison to Forearm Radial Artery Access for Cardiac Catheterization, a Randomized Controlled Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04125992
Acronym
DRAvsFRA
Enrollment
212
Registered
2019-10-14
Start date
2019-12-01
Completion date
2020-12-21
Last updated
2023-06-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Coronary Syndrome, Angina, Stable, Angina, Unstable, Atheroscleroses, Coronary, Atherosclerotic Heart Disease With Ischemic Chest Pain, Chest Pain, Coronary Artery Disease, Myocardial Infarction, Myocardial Ischemia, Non STEMI, Non ST Segment Elevation Myocardial Infarction, ST-segment Elevation Myocardial Infarction (STEMI)

Keywords

cardiac catheterization, coronary angiography, coronary angioplasty, snuff-box, snuffbox, snuff box, radial fossa, distal radial artery, radial artery, safeguard, distal radial access, distal radial angiography, radial access, angiography, distal radial, radial, coronary arteries, randomized controlled trial, left distal radial artery, Percutaneous Coronary Intervention, radial artery occlusion, forearm radial access, forearm radial artery, coronary catheterization, catheterization, left distal radial, angioplasty, coronary artery disease, radial vs distal

Brief summary

The Distal Radial Access (DRA) to the coronaries has emerged recently. It's done via the distal radial artery in the radial fossa, which is known as the snuff-box. The rationale of conducting this research is to assess this new access advantages and disadvantages, in comparison with the standard conventional forearm radial access and examine if it's worthy to be a future alternative method for coronary angiography. It aims to randomly compare between the new distal radial access via the snuffbox and the conventional forearm radial access for percutaneous coronary angiography and angioplasty procedures. The objectives of comparing both procedures are to analyze the frequency of complications in terms of occlusion, arterial spasm, hematoma, and to weigh accesses effectiveness in terms of time and attempts to puncture, crossover rate, procedure duration, hemostasis time, and convenience of the patients and operators. Candidates for coronary angiography are being randomized into the interventional group to undergo the angiography through the distal radial artery as the access site, or the control group accessing through the radial artery in the forearm. Procedural and post procedural outcomes and complications are being reported while patients are in hospital. All patients undergo doppler ultrasonography within 24 hours after the procedure.

Interventions

PROCEDUREdistal radial artery access in coronary angiography and angioplasty

The patient grasps his thumb towards the palm to bring the radial artery up to the surface. The left hand is set on the right side of the groin toward the operator, who stands on the right side, with the dorsal surface of hand upwards. Afterward, the access site is disinfected, lidocaine HCL is SC injected for local anesthesia. Subsequently, the distal radial artery is palpated to find the point of the strongest pulse. Later, at a 45-degree angle, the artery is punctured with a 21-gauge needle and a 0.018 soft, flexible, metallic wire is then inserted in the needle. Through the sheath, 200 micrograms of Nitroglycerin is given. A 5000 unit of unfractionated heparin is administered through the IV line. A weight-adjusted dose of heparin is further added if PCI is needed. Then, a 0.035 wire is introduced in the sheath with other required instruments such as the intracoronary device and the catheters. After pulling out the sheath, a compression device, Safe Guard, is used for hemostasis.

PROCEDUREForearm radial artery access in coronary angiography and angioplasty

The right hand is set in the anatomical position, with the anterior surface of arm face upwards. Afterward, the access site is disinfected, lidocaine HCL is SC injected for local anesthesia. Subsequently, the forearm radial artery is palpated to find the point of the strongest pulse. Later, at a 45-degree angle, the artery is punctured with a 21-gauge needle and a 0.018 soft, flexible, metallic wire is then inserted in the needle. Through the sheath, 200 micrograms of Nitroglycerin is given. A 5000 unit of unfractionated heparin is administered through the IV line. A weight-adjusted dose of heparin is further added if PCI is needed. Then, a 0.035 wire is introduced in the sheath with other required instruments such as the intracoronary device and the catheters. After pulling out the sheath, a compression device, TR band, is used for hemostasis.

Sponsors

An-Najah National University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Masking description

Patients enrolled to the study were randomized into Forearm Radial or Distal Radial groups. Care providers operated on patients and investigators collected their data during and after the operation. The independent variable - Access site (Forearm Radial or Distal Radial) - was coded into X or Z groups, then data was sent to the outcomes assessor.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients who agree to participate in the study and sign the consent form. * Patients with an indication for coronary catheterization * Clinically stable patients * Patients with palpable pulses on both access sites of the radial artery.

Exclusion criteria

* Patients with STEMI * Patients with radial AV shunt for hemodialysis * Patients with previous CABG using radial artery * Patients with previous CABG using LIMA, RIMA or both. * Patients with Renaud phenomenon or lymphedema

Design outcomes

Primary

MeasureTime frameDescription
Radial artery occlusionWithin 24 hours after the procedure.Doppler Ultrasonography of the radial artery for occlusions along its course, in both groups.

Secondary

MeasureTime frameDescription
Procedure DurationDuring the procedureIn minutes from the insertion of the sheath to its exertion.
Puncture TimeDuring the procedureWhich is time from first attempt to puncture to the successful one in seconds
Radiation DurationDuring the procedureWhich is measured by the radiological device in minutes.
Radiology DoseDuring the procedureWhich is measured by the radiological device in mGy.
Compression hemostasis timeUp to 240 minutes after band placementThe time from the placement of the compression band until its removal (when there's no blood oozing after deflation), measured by minutes.
Arterial spasmDuring the procedureWhich is assessed by the operator if present or absent in terms of the difficulty in inserting the wire at the time of the procedures. of the procedure.
Puncture AttemptsDuring the procedureWhich is the number of puncture attempts from first one until the successful one (maximum 6)
Ischemic changes to the handWithin 24 hours after the procedureIt is noted by clinical features of pallor, absence of pulse, pain, cold, paresthesia or paralysis.
Crossover (failure to puncture)During the procedureIt is transforming from the selected access to another after 6 failed attempts to puncture the first selected access
Procedural painDuring the procedureAssessed by numerical rating scale (NRS) for pain, which is an 10 point subjective scale (0-10) where 0 refers for no pain, 1-3 for mild pain, 4-6 for moderate pain and 7-10 for severe pain.
Post-procedural painWithin 24 hours after the procedureAssessed by numerical rating scale (NRS) for pain, which is an 11 point subjective scale (0-10) where 0 refers for no pain, 1-3 for mild pain, 4-6 for moderate pain and 7-10 for severe pain.
Rare complicationsWithin 24 hours after the procedurePseudo-aneurysm, AV fistula formation, radial artery dissection, which are assessed by Doppler US. In addition to radial artery eversion or perforation.
Radial Artery Occlusion on follow upAfter 2 weeks of the procedure.Follow up Doppler Ultrasonography for patients with occluded radial artery within 24 hours.
Hematoma and bleeding complicationsWithin 24 hours after the procedureIt is defined by EASY hematoma scale.

Countries

Palestinian Territories

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026