Journal of Korean Neurosurgical Society

The Korean Neurosurgical Society (대한신경외과학회)
권호 표지

Angiographic Hemorrhagic Risk Factors of Cerebral Arteriovenous Malformations

뇌동정맥기형의 혈관조영 검사상 출혈위험 인자

  • Kwon, O-Ki (Department of Neurosurgery, Seoul National University, College of Medicine) ;
  • Han, Dae Hee (Department of Neurosurgery, Seoul National University, College of Medicine) ;
  • Chung, Young Seob (Department of Neurosurgery, Seoul National University, College of Medicine) ;
  • Oh, Chang Wan (Department of Neurosurgery, Seoul National University, College of Medicine) ;
  • Han, Moon Hee (Department of Radiology, Seoul National University, College of Medicine)
  • 권오기 (서울대학교 의과대학 신경외과학교실) ;
  • 한대희 (서울대학교 의과대학 신경외과학교실) ;
  • 정영섭 (서울대학교 의과대학 신경외과학교실) ;
  • 오창완 (서울대학교 의과대학 신경외과학교실) ;
  • 한문희 (서울대학교 의과대학 진단방사선과학교실)
  • Received : 1999.07.09
  • Accepted : 2000.08.30
  • Published : 2000.08.28
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Abstract

Objective : The authors reviewed 280 cases with intracranial arteriovenous malformations(AVMs) to identify risk factors of hemorrhage. Patients and Methods : From 1983 to 1997, a total 280 patients with AVMs were treated. Among them, 64% had a history of hemorrhage. Angiograms were retrospectively analyzed with particular attention to the size of the AVM, venous drainage, the location of the AVM and presence of associated aneurysm or varix. These characteristics were statistically analysed in relation to occurrence of hemorrhage. Results : A single variate analysis demonstrated that small size(p=0.0003), deep venous drainage(p=0.025) and periventricular location(p<0.0001) had a strong positive correlation. Associated aneurysms and varices were not found as hemorrhagic risk factors. A multivariate analysis revealed that the size of the AVM was most significant hemorrhagic factor(p=0.0003) followed by deep venous drainage(p=0.025). AVMs with small size and deep venous drainage bled more frequently regardless of their locations. Conclusion : These data would be useful in identifying patients at higher risk for developing hemorrhage of intracranial AVMs.

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