title: Relationship between postoperative lung atelectasis and position of the endotracheal tube in pediatric living-donor liver transplantation.
abstract: OBJECTIVE
  The aims of current study were: 1) to evaluate the incidence of lung atelectasis; and 2) to investigate whether or not the position of the endotracheal (ET) tube is associated with this complication.
  
  
  METHODS
  The medical records and chest roentgenograms of 183 pediatric patients who underwent living-donor liver transplantation were retrospectively reviewed and analyzed. Patients without atelectasis were grouped in group I (GI) and those with atelectasis in group II (GII). The patients' characteristics and ET tube level between groups were compared with unpaired Student's t test. Multiple binary logistic regressions were also performed to identify the important risk factors associated with lung atelectasis.
  
  
  RESULTS
  Right upper lung (RUL) atelectsis could be found in ET tube at any level from T1 to T5, with incidence rates of 12.7%, 15.2%, 26.3%, 6.7%, and 100% for T1, T2, T3, T4, and T5, respectively. The incidence of atelectasis is 16.6%, and all of the atelectasis occurred in the RUL. No significant difference between groups was observed in the patients' characteristics, except for the amount of preoperative ascites. The likelihood of this risk factor could not be confirmed by multivariate binary logistic regression analysis.
  
  
  CONCLUSIONS
  The incidence of lung atelectasis in our study was 16.6%, which all occurred in the RUL. No predictive risk factor from the patients' characteristics could be found, and no correlation between the level of the ET tube and the occurrence of RUL atelectasis could be observed.
authors.affiliation: Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, College of Medicine, Kaohsiung, Taiwan.
authors.forename: H-Y
authors.initials: HY
authors.lastname: Lee
authors.forename: C-H
authors.initials: CH
authors.lastname: Lu
authors.forename: H-F
authors.initials: HF
authors.lastname: Lu
authors.forename: C-L
authors.initials: CL
authors.lastname: Chen
authors.forename: C-H
authors.initials: CH
authors.lastname: Wang
authors.forename: K-W
authors.initials: KW
authors.lastname: Cheng
authors.forename: S-C
authors.initials: SC
authors.lastname: Wu
authors.forename: B
authors.initials: B
authors.lastname: Jawan
authors.forename: C-J
authors.initials: CJ
authors.lastname: Huang
mesh_terms: D002648:Child; D002675:Child, Preschool; D006801:Humans; D015994:Incidence; D007223:Infant; D007442:Intubation, Intratracheal / Q000009:adverse effects*; D016031:Liver Transplantation / Q000009:adverse effects*; D019520:Living Donors; D016015:Logistic Models; D015999:Multivariate Analysis; D001261:Pulmonary Atelectasis / Q000000981:diagnostic imaging / Q000209:etiology*; D011859:Radiography; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D013624:Taiwan; D013997:Time Factors; D016896:Treatment Outcome