Ultrasonography For Radial Artery Diameter Measurement And Its Correlation With Allen Test

Not Applicable

• Conditions: Catheterization; Radial Artery; Anesthesia; Ultrasonography
• Interventions: Other: Allen test; Other: Radial artery diameter measurement by ultrasonography; Other: Ulnar artery doppler ultrasonography

• Registration Number: NCT03405428
• Lead Sponsor: Istanbul University

Brief Summary

In this study, the investigators will investigate how patients' radial artery diameters change according to sex, age, height, weight and body mass index by measuring radial artery diameter using ultrasonography. The correlation of Allen test with doppler ultrasonography will also be evaluated.

Detailed Description

Arterial catheterization for continuous hemodynamic monitoring or frequent blood sampling is a common procedure in anesthesia and critical care setting. The most commonly used site for arterial catheterization is the radial artery because of its superficial course, alternate blood supply to hand via ulnar artery and a low rate of complications. Allen test is a simple, but not reliable, method for assessing the safety of radial artery catheterization. Intraarterial catheterization has some complications such as hematoma, vasospasm, arterial thrombosis, necrosis of skin overlying. Using larger size cannula from radial artery diameter, increase rate of complications. The purpose of this study is to investigate the corelation of radial artery diameter with sex, age, height, weight and body mass index for determination of proper cannula size and investigation of correlation between Allen test and doppler ultrasonography.

Study Timeline

• Study First Submitted: 2018-01-04
• Study First Submitted QC: 2018-01-19
• Study First Posted: 2018-01-23
• Study Start: 2018-02-01
• Status Verified: 2018-03
• Last Update Submitted: 2018-03-12
• Last Update Posted: 2018-03-13
• Primary Completion: 2018-04-01
• Study Completion: 2018-04-30

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 500

Inclusion Criteria

• patients will be operated under general anesthesia
• patients were American Society of Anesthesiology (ASA) physical status I or II

Exclusion Criteria

• ASA III, IV, V
• History of coroner artery disease
• History of peripheral artery disease,
• History of diabetes mellitus,
• History of hypertension
• Hemodynamic instability
• Hypovolemia
• History of Reynaud phenomenon
• History of hand or arm trauma
• previous catheterization

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
All patients	Ulnar artery doppler ultrasonography	-
All patients	Allen test	-
All patients	Radial artery diameter measurement by ultrasonography	-

Primary Outcome Measures

Name	Time	Method
change of the radial artery diameter according to sex, age, height, weight and body mass index	5 minutes prior to anesthesia induction	Ultrasonography measurements will be performed with a linear probe. The non-dominant hand of the patient will be fixed in the anatomical position on the arm chair. The wrist joint of patient will be extended to 30 degree with a wrist pad. The Ultrasonography probe will be transversally placed 2 cm proximal to the styloid process and the short axes of the radial artery will be scanned. The diameter of the radial artery will be measured and recorded.

Secondary Outcome Measures

Name	Time	Method
correlation between Allen test and doppler ultrasonography.	5 minutes prior to anesthesia induction	Before induction, with firm occlusive pressure held on both the radial and ulnar arteries, the patient is asked to clench his or her fist several seconds until the palmar skin is blanched. The patient is then instructed to unclench the fist, and then ulnar artery pressure is released while maintaining occlusion of the radial artery. The time required for palmar capillary refill is noted. An abnormal Allen test result was defined as a recovery time of more than 10 seconds. Ultrasonography measurements will be performed with a linear probe. The non-dominant hand of the patient will be fixed in the anatomical position on the arm chair. The wrist joint of patient will be extended to 30 degree with a wrist pad. The USG probe will be transversally placed 2 cm proximal to the styloid process and the short axes of the ulnar artery will be scanned. The blood fow of ulnar artery will be measured and recorded.
change of the radial artery diameter according to sex, age, height, weight and body mass index after the induction	5 minutes following to anesthesia induction	Ultrasonography measurements will be performed with a linear probe. The non-dominant hand of the patient will be fixed in the anatomical position on the arm chair. The wrist joint of patient will be extended to 30 degree with a wrist pad. The USG probe will be transversally placed 2 cm proximal to the styloid process and the short axes of the radial arter will be scanned. The diameter of the radial artery will be measured and recorded.

Trial Locations

Locations (1)

Istanbul University Cerrahpasa Medical Faculty; 🇹🇷 Istanbul, Turkey