title: [Acute kidney injury treatment for elderly patients after esophageal cancer operation].
abstract: OBJECTIVE
  To analyze the outcome of elderly patients with acute kidney injury(AKI) after esophageal cancer operation and the effect of blood purification.
  
  
  METHODS
  23 patients with AKI, in the department of thoracic surgery in Shanxi Provincial People's Hospital, were analyzed retrospectively after 262 esophageal cancer operations from January 2010 to December 2012. AKI can be classified into three levels, in which, 13 cases for AKI first level, 7 cases for AKI second level and three cases for AKI third level. The possible causes of AKI, disposal and outcomes were analyzed in the research.
  
  
  RESULTS
  Comparing AKI group with un-AKI group after Esophageal cancer operation, diabetes is a high risk factor for AKI in perioperative period. There is no difference in BUN, SCr, average blood amount in the operation and operation duration time between two groups. The rate of low pressure occurred in AKI groups is much higher than that of in un-AKI group. 20 patients with AKI have been totally recovered after symptomatic and supportive treatment. Two cases among patients who are AKI third level received timely bedside hemofiltration and were fully recovered. One patient has been dead without hemofiltration treatment.
  
  
  CONCLUSIONS
  After the esophageal operations were peroformed, the elderly patients with AKI is mainly related with such factors as age, low blood pressure, diabetes and so on. For such elderly patients, we should monitor the renal function changes closely and eliminate possible causes. Once AKI 3 class occurs, bedside hemofiltration is needed as soon as possible.
authors.affiliation: Department of Thoracic Surgery, the Shanxi Provincial People's Hospital, Taiyuan 030012, China.
authors.forename: Hounu
authors.initials: H
authors.lastname: Ren
authors.affiliation: Department of Thoracic Surgery, the Shanxi Provincial People's Hospital, Taiyuan 030012, China; Email: meng396@163.com.
authors.forename: Lifeng
authors.initials: L
authors.lastname: Meng
mesh_terms: D058186:Acute Kidney Injury; D000368:Aged; D004938:Esophageal Neoplasms; D006440:Hemofiltration; D006801:Humans; D012189:Retrospective Studies; D012307:Risk Factors