title: Modified Blalock Taussig shunt: comparison between neonates, infants and older children.
abstract: OBJECTIVE
  The aim was to compare various pre-and post-operative parameters and to identify the predictors of mortality in neonates, infants, and older children undergoing Modified Blalock Taussig shunt (MBTS).
  
  
  METHODS
  Medical records of 134 children who underwent MBTS over a period of 2 years through thoracotomy were reviewed. Children were divided into three groups-neonates, infants, and older children. For analysis, various pre-and post-operative variables were recorded, including complications and mortality.
  
  
  RESULTS
  The increase in PaO 2 and SaO 2 levels after surgery was similar and statistically significant in all the three groups. The requirement of adrenaline, duration of ventilation and mortality was significantly higher in neonates. The overall mortality and infant mortality was 4.5% and 8%, respectively.
  
  
  CONCLUSIONS
  Neonates are at increased risk of complications and mortality compared with older children. Age (<30 days), weight (<3 kg), packed red blood cells transfusion >6 ml/kg, mechanical ventilation >24 h and post shunt increase in PaO 2 (P Diff) <25% of baseline PaO 2 are independent predictors of mortality in children undergoing MBTS.
authors.affiliation: Department of Cardiac Anesthesia, Cardio-Thoracic Sciences Center, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Sarvesh Pal
authors.initials: SP
authors.lastname: Singh
authors.forename: Sandeep
authors.initials: S
authors.lastname: Chauhan
authors.forename: Minati
authors.initials: M
authors.lastname: Choudhury
authors.forename: Vishwas
authors.initials: V
authors.lastname: Malik
authors.forename: Sachin
authors.initials: S
authors.lastname: Talwar
authors.forename: Milind P
authors.initials: MP
authors.lastname: Hote
authors.forename: Velayoudham
authors.initials: V
authors.lastname: Devagourou
mesh_terms: D000367:Age Factors; D058366:Blalock-Taussig Procedure / Q000401:mortality*; D001803:Blood Transfusion / Q000706:statistics & numerical data; D004837:Epinephrine / Q000008:administration & dosage; D005260:Female; D006330:Heart Defects, Congenital / Q000401:mortality* / Q000601:surgery*; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D011183:Postoperative Complications; D012121:Respiration, Artificial; D012189:Retrospective Studies; D012307:Risk Factors
chemical_list: D004837:Epinephrine