title: Validation of the modified Graeb score in aneurysmal subarachnoid hemorrhage.
abstract: BACKGROUND
  Intraventricular hemorrhage (IVH) in patients suffering from aneurysmal subarachnoid hemorrhage (aSAH) is a known negative predictor. Scoring systems like Fisher, Le Roux, and original Graeb score (oGS) are established to quantify the volume of IVH. The aim of this study was to evaluate the validity of the recently introduced modified Graeb score (mGS) in patients with aSAH.
  
  
  METHODS
  A retrospective analysis of the validity of the oGS and mGS in 257 aSAH patients was performed to assess and compare the predictive value of hospital mortality, development of CHC, and early functional outcome.
  
  
  RESULTS
  In univariate analysis, an increase in either the oGS or mGS was associated with a higher risk for hospital mortality, development of CHC, and poor early functional outcome. The correlation of the oGS and mGS was excellent using Pearson's product-moment (r = 0.918; p < 0.001). The predictive value of the oGS was superior to the predictive value of the mGS using receiver operating characteristics and corresponding area under the curve value as there was no statistical significant differences between the scores.
  
  
  CONCLUSIONS
  Our study confirms the validity of the recently introduced mGS to quantify the volume of IVH and extends its value in aSAH. However, the mGS offers no additional predictive value for hospital mortality, development of CHC, and poor early functional outcome in patients with aSAH patients compared to the less complex oGS.
authors.affiliation: Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany. p.czorlich@uke.de.
authors.forename: Patrick
authors.initials: P
authors.lastname: Czorlich
authors.affiliation: Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
authors.forename: Klaus C
authors.initials: KC
authors.lastname: Mende
authors.affiliation: Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
authors.forename: Eik
authors.initials: E
authors.lastname: Vettorazzi
authors.affiliation: Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
authors.forename: Jan
authors.initials: J
authors.lastname: Regelsberger
authors.affiliation: Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
authors.forename: Manfred
authors.initials: M
authors.lastname: Westphal
authors.affiliation: Department of Neurosurgery, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
authors.forename: Nils O
authors.initials: NO
authors.lastname: Schmidt
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002543:Cerebral Hemorrhage / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013345:Subarachnoid Hemorrhage / Q000473:pathology*; D015599:Trauma Severity Indices
keywords: Chronic hydrocephalus; Early functional outcome; Hospital mortality; Modified Graeb score; Subarachnoid hemorrhage