[Experience of surgical treatment of carotid body tumor after preoperative embolization of feeding vessels].
OBJECTIVE
To evaluate the effect of preoperative embolization of the feeding vessels of carotid body tumor in the treatment thereof.


METHODS
33 patients with carotid body tumors not less than 3 cm in diameter were examined by color Doppler ultrasound. Polyvinyl alcohol particle 250-1000 microm in diameter were suspended in meglumine diatrizoate or Ultravist and then injected via microcatheter into the feeding vessels until detainment or reflux was seen. Operation was performed 1 day later on 23 patients and 4 days later on 10 patients. External carotid artery to internal carotid artery bypass was performed on 1 case, anastomosis of common carotid to internal carotid artery with auto-saphenous vein interposition on 3 cases, and repair of internal carotid artery on 1 case.


RESULTS
One-stage resection was completed on all tumors. One case suffered contralateral hemiplegia two times in the operative day, on the next day the contralateral lower limb could move, but the patient could not speak clearly and his tongue was not in right position, after 3 months he was completely recovered and MRI illustrated cranial infarction.


CONCLUSIONS
An important adjunct in treating large carotid body tumor, preoperative embolization makes the surgical exploration proceed much smoother, blood loss become less, and morbidity lower.
Li
Song-qi
SQ
Department of Vascular Surgery, First Affiliated Hospital of Sun Yet-sen University, Guangzhou 510080, China.
Ye
Cai-sheng
CS
Hu
Zuo-jun
ZJ
Lin
Yong-jie
YJ
Li
Xiao-xi
XX
Lü
Wei-ming
WM
Wang
Shen-ming
SM
D000328:Adult; D002345:Carotid Body Tumor / Q000098:blood supply / Q000601:surgery* / Q000628:therapy; D004621:Embolization, Therapeutic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014656:Vascular Surgical Procedures; D055815:Young Adult