title: [Value of power Doppler ultrasound to evaluate acute kidney injury].
abstract: OBJECTIVE
  To explore the value of power Doppler ultrasound (PDU) in the evaluation of acute kidney injury(AKI).
  
  
  METHODS
  Renal blood flow of 40 AKI cases was monitored by power Doppler ultrasound and 4-level semiquantitative PDU score method employed. All cases were divided into 3 groups by PDU score. AKI stage and duration were compared. And the co-variables of death and (continuous renal replacement therapy) CRRT days (> 3) were also analyzed by Logistic regression analysis.
  
  
  RESULTS
  A total of 40 AKI case were recruited. The 3-score group (n = 13)has lower mortality in intensive care unit and at 28 days than the 2-score group (n = 15) and the 1-score group (n = 12). The number of stage-3 AKI in the 3-score group was less than that in the 2-score and 1-score groups (n = 1, 4, 9 correspondingly, χ(2) = 16.103, degree of freedom = 4, P = 0.003). The number of persistent AKI in the 3-score group was less than that in the 2-score and 1-score groups (n = 3, 9, 10 correspondingly, P < 0.05). Age, APACHEII score and PDU score (< 3) were closely correlated with death while age, APACHEII score, level of serum creatinine and PDU score (< 3) with CRRT days (> 3) (P < 0.05).
  
  
  CONCLUSIONS
  PDU may be used to monitor renal hemodynamics in AKI patients and its score helps clinicians to evaluate the severity and prognosis of AKI.
authors: Department of Surgical Intensive Care Unit, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China.
authors: Xiu-kai
authors: XK
authors: Chen
authors: Li-feng
authors: LF
authors: Huang
authors: Xiao-ting
authors: XT
authors: Wang
authors: Zhan-jun
authors: ZJ
authors: Qiu
authors: Hong-min
authors: HM
authors: Zhang
authors: Wen-xiong
authors: WX
authors: Li
mesh_terms: D058186:Acute Kidney Injury / Q000000981:diagnostic imaging*; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006439:Hemodynamics; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D018608:Ultrasonography, Doppler / Q000379:methods*; D055815:Young Adult