DRAvsFRA: Distal vs. Forearm Radial Artery Access
Study Details
Study Description
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.
Condition or Disease | Intervention/Treatment | Phase |
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N/A |
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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Experimental: Distal Radial Patients who undergo coronary catheterization by accessing the distal radial artery in the snuff-box of the hand. |
Procedure: distal 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.
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Active Comparator: Forearm Radial Patients who undergo conventional coronary catheterization by accessing the forearm radial artery. |
Procedure: Forearm 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.
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Outcome Measures
Primary Outcome Measures
- Radial artery occlusion [Within 24 hours after the procedure.]
Doppler Ultrasonography of the radial artery for occlusions along its course, in both groups.
Secondary Outcome Measures
- Puncture Time [During the procedure]
Which is time from first attempt to puncture to the successful one in seconds
- Puncture Attempts [During the procedure]
Which is the number of puncture attempts from first one until the successful one (maximum 6)
- Procedure Duration [During the procedure]
In minutes from the insertion of the sheath to its exertion.
- Radiation Duration [During the procedure]
Which is measured by the radiological device in minutes.
- Radiology Dose [During the procedure]
Which is measured by the radiological device in mGy.
- Compression "hemostasis" time [Up to 240 minutes after band placement]
The time from the placement of the compression band until its removal (when there's no blood oozing after deflation), measured by minutes.
- Arterial spasm [During the procedure]
Which 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.
- Hematoma and bleeding complications [Within 24 hours after the procedure]
It is defined by EASY hematoma scale.
- Ischemic changes to the hand [Within 24 hours after the procedure]
It is noted by clinical features of pallor, absence of pulse, pain, cold, paresthesia or paralysis.
- Crossover (failure to puncture) [During the procedure]
It is transforming from the selected access to another after 6 failed attempts to puncture the first selected access
- Procedural pain [During the procedure]
Assessed 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.
- Post-procedural pain [Within 24 hours after the procedure]
Assessed 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 complications [Within 24 hours after the procedure]
Pseudo-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 up [After 2 weeks of the procedure.]
Follow up Doppler Ultrasonography for patients with occluded radial artery within 24 hours.
Eligibility Criteria
Criteria
Inclusion Criteria:
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Patients who agree to participate in the study and sign the consent form.
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Patients with an indication for coronary catheterization
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Clinically stable patients
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Patients with palpable pulses on both access sites of the radial artery.
Exclusion Criteria:
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Patients with STEMI
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Patients with radial AV shunt for hemodialysis
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Patients with previous CABG using radial artery
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Patients with previous CABG using LIMA, RIMA or both.
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Patients with Renaud phenomenon or lymphedema
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | An-Najah National University Hospital | Nablus | Palestinian Territory, occupied |
Sponsors and Collaborators
- An-Najah National University
Investigators
- Principal Investigator: Yunis Daralammouri, asst. prof., An-Najah National University
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- DRAvsFRA