Regional cerebral blood flow evaluated by 99mTc-HMPAO-SPECT in patients with axillo-axillary bypass for subclavian steal syndrome.
BACKGROUND
Clear evidence of cerebral blood circulation has not been shown after axillo-axillary bypass surgery in patients with subclavian steal syndrome.


METHODS
We investigated the cerebral circulation and blood flow in 3 patients receiving axillo-axillary bypass by RI angiography using 99mTc-dl hexamethyl propylene amine oxime (99mTc-HMPAO). Two patients had vertebral basilar cerebral symptoms which were related to decreased cerebral blood flow evidenced by 99mTc-HMPAO.


RESULTS
After the correction, cerebral symptoms disappeared and improved cerebral blood circulation detected by 99mTc-HMPAO-SPECT.


CONCLUSIONS
We concluded that axillo-axillary bypass was a fairly effective procedure to improve cerebral blood circulation evidenced by 99mTc-HMPAO-SPECT.
Division of Cardiovascular Surgery, Aomori General Hospital, Hirosaki University School of Medicine, Japan.
K
K
Takeuchi
K
K
Maida
H
H
Midorikawa
H
H
Noda
S
S
Yoshida
S
S
Suzuki
S
S
Tanaka
D001366:Axillary Artery / Q000601:surgery*; D001921:Brain / Q000000981:diagnostic imaging*; D002560:Cerebrovascular Circulation; D006801:Humans; D019275:Radiopharmaceuticals; D013349:Subclavian Steal Syndrome / Q000000981:diagnostic imaging*; D019690:Technetium Tc 99m Exametazime; D015899:Tomography, Emission-Computed, Single-Photon
D019275:Radiopharmaceuticals; D019690:Technetium Tc 99m Exametazime