title: Are perioperative near-infrared spectroscopy values correlated with clinical and biochemical parameters in cyanotic and acyanotic infants following corrective cardiac surgery?
abstract: BACKGROUND
  Near-infrared spectroscopy (NIRS) is a useful non-invasive tool for monitoring infants undergoing cardiac surgery. In this study, we aimed to determine the NIRS values in cyanotic and acyanotic patients who underwent corrective cardiac surgery for congenital heart diseases.
  
  
  METHODS
  Thirty consecutive infants who were operated on with the diagnosis of ventricular septal defect (n=15) and tetralogy of Fallot (n=15) were evaluated retrospectively. A definitive repair of the underlying cardiac pathology was achieved in all cases. A total of six measurements of cerebral and renal NIRS were performed at different stages of the perioperative period. The laboratory data, mean urine output and serum lactate levels were evaluated along with NIRS values in each group.
  
  
  RESULTS
  The NIRS values differ in both groups, even after the corrective surgical procedure is performed. The recovery of renal NIRS values is delayed in the cyanotic patients.
  
  
  CONCLUSIONS
  Even though definitive surgical repair is performed in cyanotic infants, recovery of the renal vasculature may be delayed by up to two days, which is suggestive of a vulnerable period for renal dysfunction.
authors.affiliation: Department of Cardiovascular Surgery, Medipol University, Istanbul, Turkey.
authors.forename: Cihangir
authors.initials: C
authors.lastname: Ersoy
authors.affiliation: Department of Cardiovascular Surgery, Medipol University, Istanbul, Turkey ozyukselarda@yahoo.com.
authors.forename: Arda
authors.initials: A
authors.lastname: Özyüksel
authors.affiliation: Department of Cardiovascular Surgery, Medipol University, Istanbul, Turkey.
authors.forename: Tijen
authors.initials: T
authors.lastname: Alkan Bozkaya
authors.affiliation: Department of Anesthesiology, Medipol University, Istanbul, Turkey.
authors.forename: Pelin
authors.initials: P
authors.lastname: Karaaslan
authors.affiliation: Department of Radiology, Medipol University, Istanbul, Turkey.
authors.forename: Tuğrul
authors.initials: T
authors.lastname: Örmeci
authors.affiliation: Penn State Hershey College of Medicine, Department of Pediatrics, Surgery & Bioengineering, Hershey, PA, USA.
authors.forename: Akif
authors.initials: A
authors.lastname: Ündar
authors.affiliation: Department of Cardiovascular Surgery, Medipol University, Istanbul, Turkey.
authors.forename: Atıf
authors.initials: A
authors.lastname: Akçevin
authors.affiliation: Department of Cardiovascular Surgery, Medipol University, Istanbul, Turkey.
authors.forename: Halil
authors.initials: H
authors.lastname: Türkoğlu
mesh_terms: D006348:Cardiac Surgical Procedures; D005260:Female; D006343:Heart Septal Defects / Q000097:blood / Q000503:physiopathology / Q000601:surgery; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D016343:Monitoring, Intraoperative / Q000379:methods*; D012189:Retrospective Studies; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D013771:Tetralogy of Fallot / Q000097:blood / Q000503:physiopathology / Q000601:surgery
keywords: near-infrared spectroscopy; pediatric cardiac surgery; renal circulation; tetralogy of Fallot; ventricular septal defect