Cerebral arteriovenous malformations: factors influencing the surgical difficulty and outcome

Autor: Hideyuki Yamashita, Keiichi Kuwamura, Satoshi Matsumoto, Kazumasa Ehara, Tin-kai Lin, Yoshiro Obora, Yasuhisa Kanazawa, Norihiko Tamaki
Rok vydání: 1991
Předmět:
Zdroj: Neurosurgery. 29(6)
ISSN: 0148-396X
Popis: The outcomes of 151 patients with arteriovenous malformations (AVMs) treated either surgically or conservatively are presented. In terms of long-term survival rate and follow-up results, the patients who underwent total excision had more favorable results than did those treated conservatively. Patient age was the most important clinical factors, with the preoperative level of consciousness being the second most important. A grading system was formulated on the basis of the angiographical factors by using multiregression analysis; the size of the AVM influenced the surgical outcome twice as much as did the location and the pattern of arterial feeding. Thus, a large AVM (≥4 cm) was given 2 points; a small AVM (
Databáze: OpenAIRE