A Comparison of Left and Right Radial Approach for Percutaneous Coronary Procedures
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ClinicalTrials.gov Identifier: NCT02034084 |
Recruitment Status :
Completed
First Posted : January 13, 2014
Last Update Posted : April 23, 2015
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Previous studies have shown that the transradial cardiac catheterization has decreased not only bleeding complications related to the access site and procedural discomfort but also morbidity and hospitalization as compared to transfemoral approach. At present, the right radial approach (RRA) is the first choice routinely for coronary angiography and interventions in daily clinical practice despite more marked subclavian artery tortuosity than left radial approach (LRA). Although LRA has been thought to be more direct access to the ascending aorta similar to transfemoral approach and may reduce fluoroscopy time and cerebrovascular complications compared with RRA, the application of LRA for coronary intervention is still low. Moreover, several studies have also obtained conflicting results showing no difference in procedural success rate compared LRA and RRA using Judkins catheters. To date, it remains unclear whether LRA is superior to RRA in term of safety and feasibility for coronary angiography and interventions in real world practice and few data of randomized control trial are available.
The aim of this study was to randomly investigate and compare the safety and feasibility of LRA compared with RRA for coronary diagnostic angiography in Chinese subjects.
The investigators will enroll consecutively for 2 years all patients undergoing coronary diagnostic procedures through trans radial approach.
The primary outcome was total procedural duration. Secondary outcomes included fluoroscopy time, dose of radiation including cumulative air kerma and dose area product, contrast volume and the incidence of vascular complications.
Condition or disease | Intervention/treatment | Phase |
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Transradial Approach, Coronary Angiography, Percutaneous Coronary | Procedure: left radial approach Procedure: Right radial approach | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 1400 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Study Start Date : | March 2011 |
Actual Primary Completion Date : | March 2013 |
Actual Study Completion Date : | June 2014 |
Arm | Intervention/treatment |
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Experimental: Right radial approach
Coronary diagnostic procedures performed through right radial approach
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Procedure: Right radial approach
coronary diagnostic procedures performed through right radial approach |
Experimental: Left radial approach
Coronary diagnostic procedures performed through left radial approach
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Procedure: left radial approach
Coronary diagnostic procedures performed through left radial approach |
- Total procedural duration [ Time Frame: 1 day ]
- Fluoroscopy time [ Time Frame: 7 days ]
- Dose of radiation [ Time Frame: 7 days ]Dose of radiation include cumulative air kerma (CAK) and CAK dose area product (CAK DAP)
- Contrast volume [ Time Frame: 7 days ]
- Vascular complications [ Time Frame: 7 days ]Vascular complications include stroke, pseudoaneurysm, arteriovenous fistula, lose of radial artery pulse, puncture site bleeding and forearm hematoma.

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Ages Eligible for Study: | 20 Years to 85 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- All consecutive patients who undergo to diagnostic coronary procedures
Exclusion Criteria:
- Acute ST-elevation myocardial infarction
- Previous coronary artery bypass graft surgery
- Hemodynamic instability

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02034084
China | |
Beijing Tiantan Hospital, Capital Medical University | |
Beijing, China, 100050 |
Principal Investigator: | Buxing Chen, Dr | Beijing Tiantan Hospital |
Responsible Party: | Buxing Chen, Director of department of cardiology, Capital Medical University |
ClinicalTrials.gov Identifier: | NCT02034084 |
Other Study ID Numbers: |
COLAR |
First Posted: | January 13, 2014 Key Record Dates |
Last Update Posted: | April 23, 2015 |
Last Verified: | January 2014 |
Transradial approach, Coronary angiography |