BACKGROUND: Radial artery access is commonly performed for coronary angiography and invasive hemodynamic monitoring. Despite limitations in diagnostic accuracy, the modified Allen test (manual ...

Modified Allen test Elevate the hand and ask the patient to clench the fist for 30 seconds. Next, occlude the ulnar and radial arteries with your fingers. Ask the patient to unclench the fist of the ...

Patients undergoing PCI via the ulnar artery fare just as well as those treated with the radial approach, although there is a higher rate of access-site failure with the ulnar artery that is likely ...

Arterial access time, fluoroscopy time, and contrast load were also similar between groups. Access-site failure, however, was more than twice as likely with the transulnar approach (OR, 2.63; 95% ...

Dr MN Bhat explained, "When the radial artery is too small, the ulnar artery can be used for angiography or stenting. However, it requires more expertise, as the ulnar artery is located deeper in ...

Ulnar Artery Thrombosis: A 6-Year Experience Stephen J. Troum, MD, Waldo E. Floyd III, MD and John Sapp, MD Disclosures J South Orthop Assoc. 2001;10 (3) 0 ...

Photoplethysmography using a smartphone application for assessment of ulnar artery patency: a randomized clinical trial. Canadian Medical Association Journal, 2018; 190 (13): E380 DOI: 10.1503 ...

Using an iPhone with a commercially available heart rate-monitoring app may allow physicians to better assess the patency of a patient’s radial and ulnar arteries compared with a modified Allen test, ...

The once-rare median artery, long considered chiefly an “embryonic structure,” supplements the radial and ulnar arteries, increasing overall blood flow to the forearm and hand. Flinders ...