title: [Preoperative NT-proBNP predicts perioperative cardiac events in hip joint fracture surgery of the elderly].
abstract: BACKGROUND
  We investigated retrospectively the association between preoperative NT-proBNP and perioperative cardiac events in hip joint fracture surgery of the elderly.
  
  
  METHODS
  We studied 137 patients aged >75 years who had undergone hip joint fracture surgery between April 2010 and March 2011. All patients were assigned to one of three groups; NT-proBNP<300 pg x ml(-1) of low risk group, NT-proBNP 300-1,800 pg x ml(-1) of medium risk group and NT-proBNP>1,800 pg x ml(-1) of high risk group.
  
  
  RESULTS
  Intraoperative vasopressor agents were needed significantly more in high risk group than low and medium risk groups. Moreover, postoperative hypotension and congestive heart failure occurred only in high risk group.
  
  
  CONCLUSIONS
  We demonstrated that preoperative NT-proBNP>1,800 pg x ml(-1) was related to perioperative cardiac events in hip joint fracture surgery of the elderly.
authors: Department of Anesthesiology, Irumagawa Hospital, Sayama 350-1307.
authors: Takaho
authors: T
authors: Kaneko
mesh_terms: D000369:Aged, 80 and over; D005260:Female; D006331:Heart Diseases / Q000209:etiology*; D006620:Hip Fractures / Q000601:surgery*; D006801:Humans; D008297:Male; D020097:Natriuretic Peptide, Brain / Q000032:analysis*; D010446:Peptide Fragments / Q000032:analysis*; D059035:Perioperative Period; D011183:Postoperative Complications; D057234:Preoperative Period; D012189:Retrospective Studies
chemical_list: D010446:Peptide Fragments; C109794:pro-brain natriuretic peptide (1-76); D020097:Natriuretic Peptide, Brain