title: Long-Term Outcome of Patients with Perimembranous Ventricular Septal Defect: Results from the Belgian Registry on Adult Congenital Heart Disease.
abstract: OBJECTIVE
  Studies evaluating the long-term outcome of adults with ventricular septal defect (VSD) are important to inform patients about prognosis. This study investigated the long-term outcome of patients with perimembranous VSD (pmVSD) followed in the Belgian Registry on Adult Congenital Heart Disease.
  
  
  METHODS
  All pmVSD patients in the registry were analyzed.
  
  
  RESULTS
  Two hundred and sixty-six patients were studied. Fifteen patients had Eisenmenger syndrome. One hundred and seventy-three had isolated pmVSD and 78 had pmVSD with concomitant lesions. Of the patients with isolated pmVSD, 52% were male, median age was 29 years (IQR 24-35 years) and median follow-up duration was 18 years (IQR 10-25 years). Fifty-three (31%) patients underwent VSD closure and 10 (19%) had a residual shunt. Most (93%) patients were in NYHA class I. No patients died. Two (4%) patients developed atrial arrhythmia and 2 (4%) required pacemaker implantation. Seven (14%) developed left ventricular outflow tract obstruction (LVOTO). In the unrepaired pmVSD group, 4 developed endocarditis. In the entire group, moderate or severe aortic regurgitation (AR) occurred in 9 (5%) patients.
  
  
  CONCLUSIONS
  Long-term survival in patients with isolated pmVSD was not uneventful. Moderate or severe AR might develop and endocarditis occurred in patients without VSD repair. Complications after VSD closure included atrial arrhythmia, pacemaker implantation and LVOTO.
authors.affiliation: University Hospitals, Leuven, Belgium.
authors.forename: Charlien
authors.initials: C
authors.lastname: Gabriels
authors.forename: Julie
authors.initials: J
authors.lastname: De Backer
authors.forename: Agnes
authors.initials: A
authors.lastname: Pasquet
authors.forename: Bernard P
authors.initials: BP
authors.lastname: Paelinck
authors.forename: Marielle
authors.initials: M
authors.lastname: Morissens
authors.forename: Frederik
authors.initials: F
authors.lastname: Helsen
authors.forename: Alexander
authors.initials: A
authors.lastname: Van De Bruaene
authors.forename: Werner
authors.initials: W
authors.lastname: Budts
mesh_terms: D000328:Adult; D001145:Arrhythmias, Cardiac / Q000453:epidemiology* / Q000628:therapy; D001530:Belgium; D006328:Cardiac Catheterization; D004452:Echocardiography; D004541:Eisenmenger Complex / Q000150:complications*; D005260:Female; D006345:Heart Septal Defects, Ventricular / Q000150:complications* / Q000453:epidemiology* / Q000601:surgery*; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D010138:Pacemaker, Artificial; D016016:Proportional Hazards Models; D012042:Registries; D018570:Risk Assessment; D055989:Septal Occluder Device / Q000009:adverse effects; D013997:Time Factors; D016896:Treatment Outcome; D014694:Ventricular Outflow Obstruction / Q000209:etiology; D055815:Young Adult