title: Leptomeningeal carcinomatosis: prognostic implications of clinical and cerebrospinal fluid features.
abstract: BACKGROUND
  Leptomeningeal carcinomatosis (LC) represents a devastating complication of systemic cancer, and patients with LC have a dismal prognosis and increased mortality. The few studies that have focused on the evaluation of prognostic factors in patients with LC have resulted in contradictory results. Thus, the treatment of LC remains controversial, and no straightforward guidelines exist in the literature. The objective of the current study was to identify prognostic markers related to LC survival to better select patients who are eligible for intensive treatment.
  
  
  METHODS
  Seventy patients who had a diagnosis of LC were reviewed, and clinical data, cerebrospinal fluid (CSF) parameters, tumor-related characteristics, and treatment information were registered. The impact of single parameters on overall survival was determined by both univariate and multivariate analyses.
  
  
  RESULTS
  The multivariate analysis revealed that Radiation Therapy Oncology Group score<or=2 (P=.028), a glucose level in CSF>or=2.7 mmol/L (P=.001), the presence of infratentorial symptoms at onset (P=.026), and intrathecal treatment (P<.001) were associated independently with longer overall survival in patients with LC. In addition, the same clinical factors also predicted response to treatment in such patients.
  
  
  CONCLUSIONS
  The predictive factors for patients with LC that were identified in this study could help to better select patients who are more likely to benefit from chemotherapy.
authors.affiliation: Department of Neurology, University Hospital of Bellvitge, Barcelona, Spain.
authors.forename: Jordi
authors.initials: J
authors.lastname: Bruna
authors.forename: Laura
authors.initials: L
authors.lastname: González
authors.forename: Júlia
authors.initials: J
authors.lastname: Miró
authors.forename: Roser
authors.initials: R
authors.lastname: Velasco
authors.forename: Miguel
authors.initials: M
authors.lastname: Gil
authors.forename: Avelina
authors.initials: A
authors.lastname: Tortosa
mesh_terms: D000328:Adult; D005260:Female; D005947:Glucose / Q000134:cerebrospinal fluid; D006801:Humans; D007278:Injections, Spinal; D008297:Male; D055756:Meningeal Carcinomatosis / Q000134:cerebrospinal fluid* / Q000175:diagnosis* / Q000188:drug therapy; D008875:Middle Aged; D011379:Prognosis; D015996:Survival Rate
chemical_list: D005947:Glucose