title: Simplified single patch technique for the repair of atrioventricular septal defect.
abstract: OBJECTIVE
  Because of the complexity of traditional 1- and 2-patch techniques for the repair of complete atrioventricular septal defect, we modified our repair technique to avoid the use of any ventricular septal patch material. We report our prospective experience with this simplified 1-patch technique.
  
  
  METHODS
  Forty-seven consecutive patients between May 1995 and August 1998 underwent repair with the use of this technique without modification. Repair was done in all patients by direct suturing of the common atrioventricular valve leaflets to the crest of the ventricular septum. No division of valve leaflets was necessary. A single pericardial patch was used to close the defect in the atrial septal component. Follow-up included electrocardiography and echocardiographic assessment of ventricular function, atrioventricular valve function, and adequacy of the left ventricular outflow tract.
  
  
  RESULTS
  There were 2 deaths (4%), only 1 cardiac related, in the series. There were 17 male patients and 30 female patients. Mean age at repair was 5.6 months (median, 3.4 months). Associated lesions were repaired in 19 patients (40%). Mean follow-up was 1.85 years (median, 1.9 years). There was no heart block. There were no significant residual ventricular septal defects detected and no left ventricular outflow tract obstruction seen on echocardiography in any patient to date. Mitral valve status after operation was assessed as no incompetence in 13 patients (28%), minimal in 19 patients (40%), mild in 12 patients (26%), and moderate in 3 patients (6%).
  
  
  CONCLUSIONS
  The repair of complete atrioventricular septal defect by direct suturing of the atrioventricular valve leaflets to the crest of the ventricular septum with a single-patch technique greatly simplifies the repair and does not lead to left ventricular outflow tract obstruction nor interfere with valve function.
authors.affiliation: Adolph Basser Cardiac Institute, New Children's Hospital, Westmead, New South Wales, Australia.
authors.forename: I A
authors.initials: IA
authors.lastname: Nicholson
authors.forename: G R
authors.initials: GR
authors.lastname: Nunn
authors.forename: G F
authors.initials: GF
authors.lastname: Sholler
authors.forename: R E
authors.initials: RE
authors.lastname: Hawker
authors.forename: S G
authors.initials: SG
authors.lastname: Cooper
authors.forename: K C
authors.initials: KC
authors.lastname: Lau
authors.forename: S L
authors.initials: SL
authors.lastname: Cohn
mesh_terms: D001011:Aorta / Q000473:pathology; D002675:Child, Preschool; D004452:Echocardiography; D004562:Electrocardiography; D004694:Endocardial Cushion Defects / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006325:Heart Atria / Q000601:surgery; D006327:Heart Block / Q000517:prevention & control; D006346:Heart Septum / Q000601:surgery; D006352:Heart Ventricles / Q000601:surgery; D006801:Humans; D007223:Infant; D008297:Male; D008943:Mitral Valve / Q000601:surgery; D008944:Mitral Valve Insufficiency / Q000209:etiology; D010496:Pericardium / Q000637:transplantation*; D011093:Polyethylene Terephthalates; D011446:Prospective Studies; D019919:Prosthesis Implantation; D015996:Survival Rate; D013536:Suture Techniques; D016276:Ventricular Function / Q000502:physiology; D014694:Ventricular Outflow Obstruction / Q000517:prevention & control
chemical_list: D011093:Polyethylene Terephthalates