title: [Bidirectional Glenn: outcomes and risk factor analysis in a 5 years' experience].
abstract: OBJECTIVE
  Bidirectional Glenn shunt is a palliative surgical procedure in patients with single ventricle. Although morbimortality in this surgery is low, risk factors have been described. The purpose of this study is to report our outcomes in Glenn surgery, identifying mortality risk factors in our population.
  
  
  METHODS
  Retrospective study between 2005 and 2009. Age, weight, previous surgery, surgical procedure, and postoperative condition were analyzed. Results are reported as median and rank, or absolute values and percentage. Uni and multivariate analysis was made to identify risk factors of mortality and/or prolonged hospitalization (Stata 9.0).
  
  
  RESULTS
  One hundred and one patients were operated; 87 bidirectional Glenn and 14 bilateral Glenn. Median age 15 months (2.5-108), median weight 8.5 kg (4.2-27), and 74% of them with previous surgery. In 54 patients an associated procedure was performed simultaneously, only in 4 additional pulmonary blood flow was left. Median hospitalization was 8 days (2-97). Thirty-five percent of the patients presented complications. No association between age, weight, pulmonary hypertension, cardiopulmonary bypass, cross clamping, associated procedures or Glenn bilateral with mortality or morbidity was found. Overall mortality was 3.9%.
  
  
  CONCLUSIONS
  Mortality was similar to other centers, but morbidity in this group of patients is high. No independent risk factors associated with morbidity or mortality were identified.
authors: Unidad de Cuidados Intensivos Cardiovasculares, Hospital de Pediatría Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina. Electronic address: draverobecerra@yahoo.com.ar.
authors: Verónica
authors: V
authors: Becerra
authors: Guillermo
authors: G
authors: Moreno
authors: María
authors: M
authors: Althabe
authors: Ana
authors: A
authors: Lenz
authors: Ricardo
authors: R
authors: Magliola
authors: Analía
authors: A
authors: Martín
authors: Jorge
authors: J
authors: Barreta
authors: Pablo
authors: P
authors: Ruffa
authors: José
authors: J
authors: Suárez
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D018729:Fontan Procedure; D006330:Heart Defects, Congenital / Q000601:surgery*; D006801:Humans; D007223:Infant; D008297:Male; D011183:Postoperative Complications / Q000453:epidemiology; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D013997:Time Factors; D016896:Treatment Outcome