title: Incidence and risk factors for rebleeding during cerebral angiography for ruptured intracranial aneurysms.
abstract: OBJECTIVE
  The purpose was to evaluate the incidence and risk factors for rebleeding during cerebral angiography in ruptured intracranial aneurysms.
  
  
  METHODS
  Among 1896 patients with ruptured intracranial aneurysms between September 2006 and December 2013, a total of 11 patients who experienced rebleeding of the ruptured aneurysms during digital subtraction angiography (DSA) were recruited in this study.
  
  
  RESULTS
  There were 184 patients (9.7%) who had suffered rebleeding prior to the securing procedure. Among them, 11 patients experienced rebleeding during DSA and other 173 patients at a time other than DSA. Eight (72.7%) of the 11 patients experienced rebleeding during three-dimensional rotational angiography (3DRA). The incidence of rebleeding during DSA was 0.6% in patients with ruptured intracranial aneurysms. Multivariate logistic regression analysis showed that aneurysm location in anterior circulation [odds ratio=14.286; 95% confidence interval (CI), 1.877 to 250.0; p=0.048] and higher aspect ratio (odds ratio=3.040; 95% CI, 1.896 to 10.309; p=0.041) remained independent risk factors for rebleeding during DSA.
  
  
  CONCLUSIONS
  Ruptured aneurysms located in anterior circulation with a high aspect ratio might have the risk of rebleeding during DSA, especially during 3DRA.
authors: Department of Neurosurgery, Ajou University School of Medicine, Suwon, Korea.
authors: Yong Cheol
authors: YC
authors: Lim
authors: Department of Neurosurgery, Keimyung University School of Medicine, Dongsan Medical Center, Daegu, Korea.
authors: Chang-Hyun
authors: CH
authors: Kim
authors: Department of Neurosurgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors: Yong Bae
authors: YB
authors: Kim
authors: Department of Neurosurgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors: Jin-Yang
authors: JY
authors: Joo
authors: Department of Neurosurgery, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea.
authors: Yong Sam
authors: YS
authors: Shin
authors: Department of Neurosurgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea. ns.joonho.chung@gmail.com.
authors: Joonho
authors: J
authors: Chung
mesh_terms: D000328:Adult; D000368:Aged; D017542:Aneurysm, Ruptured; D015901:Angiography, Digital Subtraction / Q000379:methods*; D002533:Cerebral Angiography / Q000379:methods*; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D015994:Incidence; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000628:therapy; D020300:Intracranial Hemorrhages / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D012008:Recurrence; D012307:Risk Factors; D014057:Tomography, X-Ray Computed
keywords: Cerebral angiography; intracranial aneurysm; rebleeding; subarachnoid hemorrhage