Distal migration of a floating carotid thrombus in a patient using oral contraceptives: a case report.
BACKGROUND
We report the case of a patient with distal migration of a floating carotid thrombus caused by oral contraceptives.


METHODS
A 48-year-old woman using oral contraceptives suffered from dysarthria and gait disturbance. Examinations, including ultrasound and cerebral arteriogram, revealed a floating thrombus at the left carotid bifurcation with no stenosis. Despite antithrombotic therapy, the floating carotid thrombus migrated to the ipsilateral middle cerebral artery, resulting in a severe stroke.


CONCLUSIONS
Some floating thrombi are resistant to conservative therapy and have a risk of distal migration, which may cause a major stroke in the acute stage.
Watanabe
Masaki
M
Mori
Takahisa
T
Imai
Keisuke
K
Izumoto
Hajime
H
Hirano
Teruyuki
T
Uchino
Makoto
M