[Analysis of unknown cause subarachnoid hemorrhage with repeated negative angiogram].

@article{Fujii2006AnalysisOU,
  title={[Analysis of unknown cause subarachnoid hemorrhage with repeated negative angiogram].},
  author={Mutsumi Fujii and Yoshio Takasato and Hiroyuki Masaoka and Yoshihisa Ohta and Takanori Hayakawa and Masato Honma},
  journal={No to shinkei = Brain and nerve},
  year={2006},
  volume={58 6},
  pages={
          489-93
        }
}
Seven hundred and fifty five cases of acute non-traumatic subarachnoid hemorrhage were admitted to the department of neurosurgery of our hospital from July, 1995 to March, 2004. In 555 patients cerebral angiography was conducted but initial angiography was negative in 30 patients. Except 10 general condition poor patients, in 20 initial angiogram-negative patients were undergone repeated angiography. The cause of SAH could not be demonstrated in 13 cases. The SAH in perimesencephalic and non… CONTINUE READING