title: The impact of intraoperative vasopressin infusion in complex neonatal cardiac surgery.
abstract: OBJECTIVE
  Although recent advances have led to a better understanding of the beneficial effects of vasopressin on haemodynamics in paediatric cardiac surgery, not much information is available on the adverse effects. The objective of this study was to assess the impact of intraoperative vasopressin infusion on postoperative liver, renal and haemostatic function and lactate levels in neonates undergoing cardiac surgery.
  
  
  METHODS
  We reviewed data from 34 consecutive neonates who had undergone complex cardiac surgery. The cohort was divided into two groups according to the use of vasopressin. Seventeen patients received vasopressin [vasopressin (+) group], and 17 patients did not [vasopressin (-) group].
  
  
  RESULTS
  No differences between the groups in terms of age, weight, cardiopulmonary bypass time, Risk Adjustment for Congenital Heart Surgery-1 score or the comprehensive Aristotle score were seen. No differences in the systolic or diastolic arterial blood pressures, heart rate or inotropic score upon admission to the intensive care unit were observed between the groups. No adverse effects on the aminotransferase levels were seen. The vasopressin (+) group had higher urea and creatinine levels. All the patients except one received peritoneal dialysis on the day of surgery. Thirteen patients in the vasopressin (+) group and 7 patients in the vasopressin (-) group continued to require peritoneal dialysis on postoperative day 5 (POD 5) (P = 0.04). The platelet count had decreased to a significantly lower level in the vasopressin (+) group on POD 5 [97 x 10(3)/mm(3) (range: 40-132 x 10(3)/mm(3))]. A tendency toward a high lactate concentration was seen in the vasopressin (+) group. In comparison with the vasopressin (-) group, the number of patients whose lactate level remained above 2.0 mmol/l was higher in the vasopressin (+) group on PODs 2 and 3 (17 patients vs 8 patients, P < 0.01 and 15 patients vs 7 patients, P = 0.01, respectively).
  
  
  CONCLUSIONS
  These findings suggest that the intraoperative use of vasopressin extends the period of peritoneal dialysis, reduces platelet counts and delays the recovery of the lactate concentration. Intraoperative vasopressin infusion should not be used routinely, but only in catecholamine-refractory shock.
authors.affiliation: Department of Anesthesiology, Saitama International Medical Center, Saitama, Japan. nishibe@saitama-med.ac.jp
authors.forename: Shinichi
authors.initials: S
authors.lastname: Nishibe
authors.forename: Miki
authors.initials: M
authors.lastname: Tsujita
mesh_terms: D000410:Alanine Transaminase / Q000097:blood; D001219:Aspartate Aminotransferases / Q000097:blood; D015415:Biomarkers / Q000097:blood; D001806:Blood Urea Nitrogen; D006348:Cardiac Surgical Procedures / Q000009:adverse effects*; D002315:Cardiopulmonary Bypass / Q000009:adverse effects; D016009:Chi-Square Distribution; D003404:Creatinine / Q000097:blood; D004334:Drug Administration Schedule; D006330:Heart Defects, Congenital / Q000097:blood / Q000503:physiopathology / Q000601:surgery*; D006439:Hemodynamics / Q000187:drug effects*; D006487:Hemostasis / Q000187:drug effects; D006801:Humans; D007022:Hypotension / Q000097:blood / Q000188:drug therapy* / Q000209:etiology / Q000503:physiopathology; D007223:Infant; D007262:Infusions, Intravenous; D019934:International Normalized Ratio; D007430:Intraoperative Care; D007674:Kidney Diseases / Q000097:blood / Q000209:etiology / Q000628:therapy; D019344:Lactic Acid / Q000097:blood; D010530:Peritoneal Dialysis; D010976:Platelet Count; D017713:Platelet Transfusion; D012189:Retrospective Studies; D012307:Risk Factors; D013997:Time Factors; D016896:Treatment Outcome; D014508:Urea / Q000097:blood; D014662:Vasoconstrictor Agents / Q000008:administration & dosage* / Q000009:adverse effects; D014667:Vasopressins / Q000008:administration & dosage* / Q000009:adverse effects
chemical_list: D015415:Biomarkers; D014662:Vasoconstrictor Agents; D014667:Vasopressins; D019344:Lactic Acid; D014508:Urea; D003404:Creatinine; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase