Asian Annals
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Kerim Cagli
Alper Uzun
Mustafa Emir
Vedat Bakuy
Erol Sener
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Right arrow Coronary disease
Asian Cardiovasc Thorac Ann 2006;14:105-108
© 2006 Asia Publishing EXchange Ltd

ORIGINAL CONTRIBUTIONS

Correlation of Modified Allen Test with Doppler Ultrasonography

Kerim Cagli, MD, Alper Uzun, MD, Mustafa Emir, MD, Vedat Bakuy, MD, Mahmut Ulas, MD, Erol Sener, MD

Cardiovascular Surgery Clinic, Turkiye Yuksek Ihtisas Hospital, Ankara, Turkey

For reprint information contact: Vedat Bakuy, MD Tel: 90 532 626 5104 Fax: 90 312 291 2525 Email: vedatbakuy{at}yahoo.com, Abay Kunanbay Cad. No: 36 D: 2, Kavaklidere, Ankara 06700, Turkey.

The feasibility of using modified Allen tests to evaluate arterial circulation in the forearm for possible radial artery grafting, and the correlation of these tests with Doppler ultrasonography, were examined. The hand circulation of 50 patients scheduled for coronary artery bypass grafting was assessed by plethysmography, pulse oximetry, and pencil Doppler, as well as Doppler ultrasonography. Flow, velocity, and diameter of the radial, ulnar, and snuffbox arteries were recorded, and radiological screening indices were evaluated to establish a standard set of criteria. The results of modified Allen tests by plethysmography and pulse oximetry demonstrated the dominance of the ulnar artery. The indices of flow x diameter and velocity x diameter, obtained from Doppler ultrasound measurements, confirmed the dominance of the ulnar artery. When compression was applied to the arteries sequentially, significant alterations were found. The arterial circulation in the forearm can be safely evaluated by the modified Allen tests with plethysmography, pulse oximetry, and pencil Doppler, as these results correlated with Doppler ultrasound.






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