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[Clinical evaluation of blood supply of the hand]
1Jishuitan Hospital, Beijing.
The blood supply of 39 apparently normal hands was examined by the use of the Allen test and a Doppler Ultrasonic Blood Flow Detector. The ultrasonic examination appears to be more sensitive to the change of blood supply to the hand than the Allen test and to have higher degree of accuracy. The Allen test seems to provide some useful information, but it is a relatively crude test. The ultrasonic examination should become one of the routine examinations of patients who are likely to undergo procedures which may interfere with the normal circulation of the hand.
The blood supply of 39 apparently normal hands was examined by the use of the Allen test and a Doppler Ultrasonic Blood Flow Detector. The ultrasonic examination appears to be more sensitive to the change of blood supply to the hand than the Allen test and to have higher degree of accuracy. The Allen test seems to provide some useful information, but it is a relatively crude test. The ultrasonic examination should become one of the routine examinations of patients who are likely to undergo procedures which may interfere with the normal circulation of the hand.