title: [A clinical study on delayed encephalopathy after carbon monoxide poisoning].
abstract: OBJECTIVE
  To investigate clinical and imaging characteristics of delayed encephalopathy after carbon monoxide poisoning(DEACMP).
  
  
  METHODS
  A retrospective and comparative analysis of neurological manifestations, course, periods of false-cure, prognosis and neuroimaging findings were conducted in 198 patients with DEACMP.
  
  
  RESULTS
  Of these patients, 60.1% obtained an initial recovery within 30 d, 23.7% within 31-60 d and 14.6% over 60 d. Total clinical rate was 32.8%, and effectiveness rate 70.1%. According to imaging findings, 15.2% patients were found to have bilateral lesions of basal ganglion, and 70.0% with lesions of subcortical white matter, 12.6% with lesions of two types above mentioned and 2.1% with no lesions. The intervals between onset of illness and initial recovery were (44.6 +/- 10.1), (38.2 +/- 11.9), (61.3 +/- 17.0) d, and (7.5 +/- 2.4) d respectively. Imaging findings can demonstrate the severity of brain injury, but not necessarily parallel to the improvement of illness, for which SPECT proves more useful.
  
  
  CONCLUSIONS
  DEACMP is involved in ischemic brain injury and a self-limited illness.
authors.affiliation: Department of Hyperbaric Oxygen, PLA Naval General Hospital, Beijing 100037, China.
authors.forename: Hai
authors.initials: H
authors.lastname: Yu
authors.forename: Xiaowen
authors.initials: X
authors.lastname: Pan
authors.forename: Juan
authors.initials: J
authors.lastname: Meng
authors.forename: Jianzhang
authors.initials: J
authors.lastname: Ding
authors.forename: Guanghua
authors.initials: G
authors.lastname: Xu
authors.forename: Guangcai
authors.initials: G
authors.lastname: Fang
mesh_terms: D001927:Brain Diseases / Q000209:etiology*; D002249:Carbon Monoxide Poisoning / Q000150:complications*; D006801:Humans; D012189:Retrospective Studies; D015899:Tomography, Emission-Computed, Single-Photon