title: The effect of preoperative intravenous paracetamol administration on postoperative fever in pediatrics cardiac surgery.
abstract: BACKGROUND
  Post-operative fever is a common complication of cardiac operations, which is known to be correlated with a greater degree of cognitive dysfunction 6 weeks after cardiac surgery. The aim of the present study was to examine efficacy and safety of single dose intravenous Paracetamol in treatment of post-operative fever in children undergoing cardiac surgery.
  
  
  METHODS
  In this randomised, double-blind, placebo-controlled clinical trial, 80 children, aged 1-12 years, presenting for open heart surgery were entered in the trial and randomly allocated into two groups: Placebo and Paracetamol. After induction of anaesthesia, 15 mg/kg intravenous Paracetamol solution was infused during 1 h in the Paracetamol group. Patients in placebo group received 15 mg/kg normal saline infusion during the same time. Since the end of operation until next 24 h in intensive care unit, axillary temperature of the two group patients was recorded in 4-h intervals. Any fever that occurred during this period had been treated with Paracetamol suppository (125 mg) and the amount of antipyretic drug consumption for each patient had been recorded. In order to examine the safety of Paracetamol, patients were evaluated for drug complication at the same time.
  
  
  RESULTS
  Mean axillary temperature during first 24 h after operation was significantly lower in Paracetamol group compared with placebo group (P = 0.001). Overall fever incidence during 24 h after operation was higher in placebo group compared with Paracetamol group (P = 0.012). Of Paracetamol group patients, 42.5% compared with 15% of placebo group participants had no consumption of antipyretic agent (Paracetamol suppository) during 24 h after operation (P = 0.001).
  
  
  CONCLUSIONS
  This study suggests that single dose administration of intravenous Paracetamol before paediatric cardiac surgeries using cardiopulmonary bypass; reduce mean body temperature in the first 24 h after operation.
authors.affiliation: Department of Anesthesia, Shahid Sadoghi University of Medical Science, Yazd, Iran.
authors.forename: Mohammad-Hasan
authors.initials: MH
authors.lastname: Abdollahi
authors.affiliation: Department of Cardiac Surgery, Shahid Sadoghi University of Medical Science, Yazd, Iran.
authors.forename: Khalil
authors.initials: K
authors.lastname: Foruzan-Nia
authors.affiliation: Department of Pediatrics, Shahid Sadoghi University of Medical Science, Yazd, Iran.
authors.forename: Mostafa
authors.initials: M
authors.lastname: Behjati
authors.affiliation: Department of Cardiology, Mazandaran University of Medical Science, Mazandaran, Iran.
authors.forename: Babak
authors.initials: B
authors.lastname: Bagheri
authors.affiliation: Department of Internal-Surgical, Tabriz University of Medical Science, Tabriz, Iran.
authors.forename: Mehdi
authors.initials: M
authors.lastname: Khanbabayi-Gol
authors.affiliation: Department of Psychiatry, Tabriz University of Medical Science, Tabriz, Iran.
authors.forename: Shahla
authors.initials: S
authors.lastname: Dareshiri
authors.affiliation: Physical Medicine and Rehabilitation Research Center, Tabriz University of Medical Science, Tabriz, Iran.
authors.forename: Alireza
authors.initials: A
authors.lastname: Pishgahi
authors.affiliation: Department of Anesthesia, Shahid Sadoghi University of Medical Science, Yazd, Iran.
authors.forename: Rafie
authors.initials: R
authors.lastname: Zarezadeh
authors.affiliation: Department of Anesthesiology and Reanimatology, Medical Faculty, Hacettepe University, Ankara, Turkey.
authors.forename: Nazgol
authors.initials: N
authors.lastname: Lotfi-Naghsh
authors.affiliation: Students' Research Committee, Tabriz University of Medical Science, Tabriz, Iran.
authors.forename: Ainaz
authors.initials: A
authors.lastname: Lotfi-Naghsh
authors.affiliation: Students' Research Committee, Tabriz University of Medical Science, Tabriz, Iran ; Medical Philosophy and History Research Center, Tabriz University of Medical Science, Tabriz, Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Naghavi-Behzad
keywords: Cardiac surgery; paediatric; paracetamol; post-operative fever