Comparison of Two Radial Artery Segments Related to Old-Fashioned Radial and New Snuff Box Vessel Approach by US

Study Overview
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Brief Summary
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The purpose of this study is to determine if there is a difference in the size and the depth of the radial artery at the access points for established radial and new distal radial approach for the arteries of both arms

Detailed Description
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Radial approach for coronary and peripheral procedures is now well established due to both patient and operator preference and carries a lower risk of bleeding and mortality. The most lasting consequence of transradial procedures remains radial artery occlusion, which is mainly influenced by the artery diameter and the size of the sheath. As a new, more distal approach looms on the horizon, it is plausible to determine factors that could impact its feasibility. Since the success rate for artery cannulation depends to a great extent on the size and the depth of the artery, the current study examines both parameters, as well as whether they are influenced by variables such as sex, body mass index, handedness, or comorbidities i.e. diabetes mellitus and hypertension.

Official Title
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Comparison of Two Radial Artery Segments Related to Old-Fashioned Radial and New Snuff Box Vessel Approach. Ultrasound Study of Both Arms

Conditions
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Heart Diseases

Intervention / Treatment
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* Diagnostic Test: Ultrasound examination of radial arteries


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients >18 years old admitted to the Cardiology Department Exclusion Criteria: Previous transradial procedures Arm AV fistula for dialysis access History of upper limb peripheral arterial disease Hemiparesis Hemodynamic instability

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Diagnostic Test: Ultrasound examination of radial arteries|Measuring the diameter and the depth of two radial segments on both arms|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Comparison of ultrasound derived diameters of radial artery measured at sites related to two different transradial arterial approaches for catheterization | Measuring diameters of the radial artery at the access points for well established radial and new distal radial approach and finding or not a significant difference could have some implications for choosing the access radial site. At the end of a routine echocardiographic evaluation, four short axis measurements (one proximal and one distal on each arm) of the radial artery diameters will be done with a vascular probe. | 1 day | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Comparison of ultrasound derived depth of radial artery measured at sites related to two different transradial arterial approaches for catheterization | At the end of a routine echocardiographic evaluation, four measurements (one proximal and one distal on each arm) of the radial artery depth will be done with a vascular probe in a neutral position of the hand. | 1 day | 
| Impact of sex, BMI, hand-dominance or comorbidities on the size and the depth of the arterial segments | To determine if sex, BMI, hand-dominance and widespread comorbidities (hypertension and diabetes mellitus) influence the size and the depth of the radial artery | 1 day |