title: Which side of lateral ventricles to choose during external ventricular drainage in patients with intraventricular hemorrhage: ipsilateral or contralateral?
abstract: BACKGROUND
  We attempted to investigate the effect of external ventricular drainage (EVD) plus intraventricular fibrinolysis from ipsilateral or contralateral ventricle on clinical outcomes in patients with intraventricular hemorrhage.
  
  
  METHODS
  We undertook a prospective controlled study. Patients with acute obstructive hydrocephalus after intraventricular hemorrhage were randomized to receive EVD from ipsilateral ventricle (ipsilateral group [IG]) or contralateral ventricle (contralateral group [CG]). They received intracranial pressure (ICP) monitoring and intraventricular injection of urokinase after surgery. We compared clinical outcomes and complications between groups.
  
  
  RESULTS
  A total of 45 patients were enrolled, with a mean age of 55.4 years. We assigned 28 patients assigned to the IG and 17 patients to the CG. Patients in the IG showed significantly faster clot clearance in the third and fourth ventricles on computed tomography than those in the CG (3.3 ± 1.0 d versus 3.9 ± 0.8 d; P = 0.042). Analysis of ICP data showed that initial ICP in the IG was significantly higher than in the CG (20.4 ± 7.2 mm Hg versus 16.5 ± 4.4 mm Hg; P = 0.039), as was the average daily ICP on the following 3 d. The percentage of ICP readings over 20 mm Hg in the IG was also significantly larger than that in the CG (18.0% versus 10.9%; P < 0.001). There was no significant difference in the incidence of complications regarding rebleeding, infection, epilepsy, or communicating hydrocephalus. Neither 30-d mortality rate nor Glasgow Outcome Scale score revealed significant differences between the two groups.
  
  
  CONCLUSIONS
  External ventricular drainage plus EVT from the ipsilateral or contralateral ventricle has similar short-term outcomes and complications in patients with intraventricular hemorrhage. Faster clot clearance in the third and fourth ventricles but higher ICP levels at the early stage may be expected in patients with EVD from the ipsilateral ventricle, compared with those from with EVD from the contralateral ventricle.
authors.affiliation: Neurosurgical Department, 10th People's Hospital of Tongji University, Shanghai, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Wang
authors.forename: Hang-Gen
authors.initials: HG
authors.lastname: Du
authors.forename: Li-Chun
authors.initials: LC
authors.lastname: Yin
authors.forename: Min
authors.initials: M
authors.lastname: He
authors.forename: Bi-Lie
authors.initials: BL
authors.lastname: Hao
authors.forename: Li
authors.initials: L
authors.lastname: Chen
mesh_terms: D000208:Acute Disease; D002543:Cerebral Hemorrhage / Q000000981:diagnostic imaging / Q000473:pathology* / Q000628:therapy*; D004322:Drainage / Q000009:adverse effects / Q000379:methods*; D005260:Female; D005343:Fibrinolytic Agents / Q000008:administration & dosage / Q000627:therapeutic use; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology; D007276:Injections, Intraventricular; D020547:Lateral Ventricles / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D015912:Thrombolytic Therapy; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014568:Urokinase-Type Plasminogen Activator / Q000008:administration & dosage / Q000627:therapeutic use
chemical_list: D005343:Fibrinolytic Agents; D014568:Urokinase-Type Plasminogen Activator
keywords: Contralateral ventricle; External ventricular drainage; Intracranial pressure; Intraventricular fibrinolysis; Intraventricular hemorrhage; Ipsilateral ventricle