title: Stenting of stenotic aortopulmonary collaterals in non-surgically treated adolescent or adult patients with pulmonary atresia, ventricular septal defect and multiple aortopulmonary collaterals.
abstract: OBJECTIVE
  To present our experience with stent implantations in non-surgically treated patients with pulmonary atresia, ventricular septal defect and stenotic aortopulmonary collaterals.
  
  
  METHODS
  Between April 2007 and June 2009, 6 stents in 4 patients were implanted into stenosed segments of MAPCAs. The median age and weight of patients at stent implantation were 24 years (range 13-34 years) and 58.5 kg (range 56-70 kg), respectively.
  
  
  RESULTS
  All implantations were successfully performed; there were no procedure associated complications. The median diameter increase of stenosed MAPCAs was 107%. The mean arterial blood saturation increased from mean 78% to 84%. An early increase in the median exercise duration measured by 6MWT was 36%. Neointimal in-stent fibroproliferation in 4/6 stents and stent fracture in 1/6 patients occured in mid-term follow-up.
  
  
  CONCLUSIONS
  Percutaneous catheterizational stent implantation into stenosed segments of MAPCAs is a palliative procedure, that might improve quality of life of non-surgically treated patients with PA, VSD, MAPCAs. Neointimal in-stent fibroproliferation and stent fracture can be expected as complications in mid-term follow-up. CT-angiography is recommended to confirm these complications in progressive satO2 decrease (Fig. 3, Ref. 12).
authors.forename: P
authors.initials: P
authors.lastname: Olejnik
authors.forename: P
authors.initials: P
authors.lastname: Tittel
authors.forename: Z
authors.initials: Z
authors.lastname: Venczelova
authors.forename: J
authors.initials: J
authors.lastname: Masura
mesh_terms: D000293:Adolescent; D000328:Adult; D006328:Cardiac Catheterization / Q000379:methods*; D003097:Collateral Circulation; D005260:Female; D006345:Heart Septal Defects, Ventricular / Q000175:diagnosis / Q000503:physiopathology; D006801:Humans; D008297:Male; D010166:Palliative Care / Q000379:methods / Q000523:psychology; D019919:Prosthesis Implantation / Q000295:instrumentation / Q000379:methods; D011651:Pulmonary Artery / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D018633:Pulmonary Atresia / Q000175:diagnosis / Q000503:physiopathology; D011788:Quality of Life; D012189:Retrospective Studies; D015607:Stents; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014654:Vascular Patency
keywords: MAPCAs; PA; non-surgically treated patients.; stent