title: Predictive value of B-type natriuretic peptide for postoperative atrial fibrillation following pulmonary resection for lung cancer.
abstract: OBJECTIVE
  To evaluate the usefulness of atrial natriuretic peptide (ANP) and brain B-type natriuretic peptide (BNP) for predicting postoperative atrial fibrillation (AF), we determined the changes in perioperative ANP and BNP levels in patients undergoing pulmonary resection for lung cancer.
  
  
  METHODS
  This prospective observational study was conducted during the 10-month period from July 2007 to April 2008. Eighty patients with lung cancer underwent lobectomy, segmentectomy or wedge resection. Preoperative evaluations included spirometry and examinations of plasma ANP and BNP-levels, which were also determined on postoperative days 1, 3 and 7.
  
  
  RESULTS
  Postoperative AF was identified in 22 (28%) of the patients, and those had significantly higher preoperative ANP and BNP levels as compared with patients without AF. During the postoperative course, patients with postoperative AF also had significantly higher ANP and BNP-levels. The area under the receiver-operating characteristic curve for BNP to predict postoperative AF following pulmonary resection for lung cancer was 0.90 (95% confidence interval (CI), 0.82-0.98; p<0.001). A BNP value of 30pgml(-1) had a sensitivity of 77% and a specificity of 93% for predicting postoperative AF following pulmonary resection for lung cancer.
  
  
  CONCLUSIONS
  Preoperative BNP level seems to be an appropriate predictor of AF after pulmonary resection.
authors.affiliation: Department of General Thoracic Surgery, Toneyama National Hospital, Toneyama, 5-1-1, Toyonaka-City, 560-8552 Osaka, Japan. nojirit@thoracic.med.osaka-u.ac.jp
authors.forename: Takashi
authors.initials: T
authors.lastname: Nojiri
authors.forename: Hajime
authors.initials: H
authors.lastname: Maeda
authors.forename: Yukiyasu
authors.initials: Y
authors.lastname: Takeuchi
authors.forename: Yasunobu
authors.initials: Y
authors.lastname: Funakoshi
authors.forename: Toru
authors.initials: T
authors.lastname: Kimura
authors.forename: Ryoji
authors.initials: R
authors.lastname: Maekura
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Yamamoto
authors.forename: Meinoshin
authors.initials: M
authors.lastname: Okumura
mesh_terms: D000368:Aged; D001281:Atrial Fibrillation / Q000175:diagnosis / Q000209:etiology*; D009320:Atrial Natriuretic Factor / Q000097:blood; D015415:Biomarkers / Q000097:blood; D005260:Female; D005541:Forced Expiratory Volume; D006801:Humans; D008175:Lung Neoplasms / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D020097:Natriuretic Peptide, Brain / Q000097:blood*; D011013:Pneumonectomy / Q000009:adverse effects*; D011237:Predictive Value of Tests; D011379:Prognosis; D011446:Prospective Studies; D014797:Vital Capacity
chemical_list: D015415:Biomarkers; D020097:Natriuretic Peptide, Brain; D009320:Atrial Natriuretic Factor