title: Results of simplified single-patch repair for complete atrioventricular septal defect.
abstract: BACKGROUND
  Since Wilcox's description of the simplified single-patch technique for atrioventricular septal defect (AVSD) repair in 1997, several studies have compared that technique with the two-patch technique.
  
  
  OBJECTIVE
  To report the mid- and long-term results of the simplified single-patch technique for complete AVSD repair.
  
  
  METHODS
  Retrospective study of 16 consecutive cases between January 2001 and December 2011. The patients' mean age was 18.31 ± 34.19 months (2 months - 11 years), and their mean weight, 7.80 ± 6.12 kg (3.77 - 25.0 kg). Six patients were males and 14 had Down syndrome. Mean follow-up duration was 54.97 ± 47.79 months.
  
  
  RESULTS
  Mean cardiopulmonary bypass time was 74.63 ± 18.48 min (49 - 112 min), and mean aortic cross-clamp time, 46.44 ± 11.89 min (34 - 67 min). Two patients died during hospitalization (12.5%), both of cardiovascular causes. Three patients underwent reoperation due to left atrioventricular (AV) valve regurgitation, and two had third-degree VA block, requiring permanent pacemaker implantation. No patient had left ventricular outflow tract obstruction. The 14 surviving patients remain asymptomatic, ten of whom with mild left VA valve regurgitation (71.42%).
  
  
  CONCLUSIONS
  The simplified single-patch technique for complete AVSD repair proved to be feasible, providing adequate correction of the defects and favorable clinical and echocardiographic outcome in the mean 57.97-month follow-up.
authors.affiliation: Instituto de Cardiologia, Fundação Universitária de Cardiologia, Universidade Federal do Rio Grande do Sul 2, Porto Alegre, RS – Brazil.
authors.forename: Ana Paula
authors.initials: AP
authors.lastname: Tagliari
authors.forename: Daniel Augusto
authors.initials: DA
authors.lastname: Schröder
authors.forename: Guaracy
authors.initials: G
authors.lastname: Teixeira Filho
authors.forename: Paulo Roberto
authors.initials: PR
authors.lastname: Prates
authors.forename: João Ricardo M
authors.initials: JR
authors.lastname: Sant'anna
authors.forename: Ivo A
authors.initials: IA
authors.lastname: Nesralla
authors.forename: Renato A K
authors.initials: RA
authors.lastname: Kalil
mesh_terms: D002648:Child; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006344:Heart Septal Defects, Atrial / Q000000981:diagnostic imaging / Q000601:surgery*; D006345:Heart Septal Defects, Ventricular / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D007223:Infant; D008297:Male; D012086:Reoperation / Q000706:statistics & numerical data; D012189:Retrospective Studies; D013536:Suture Techniques / Q000009:adverse effects* / Q000401:mortality; D016896:Treatment Outcome; D014463:Ultrasonography