title: [The comparison a 16-year follow-up results of balloon angioplasty for aortic coarctation in children of different age groups: a single-center experience].
abstract: OBJECTIVE
  Pediatric patients with different age groups who underwent balloon angioplasty for aortic coarctation were evaluated for recoarctation, aneurysm, peripheral arterial injuries and concomitant diseases.
  
  
  METHODS
  From January 1994 to 2010, 80 patients with aortic coarctation (native/recoarctation) were evaluated, retrospectively. According to age at angioplasty, patients were divided into three groups: Group A (0-3 months, n=29, 25 male/4 female, average weight 4±1.2 kg), Group B (3-12 months, n=20, 15 male/5 girls, average weight 6.5±1.9 kg) and Group C (> 1 year, n= 31, 15 male/16 girls, average weight 22.8±16 kg). The patients were followed with echocardiography and clinical signs. The data of the native and recoarcted patients and also those in three different age groups were analyzed by using Chi-square, Kruskal-Wallis, and Student t tests.
  
  
  RESULTS
  Peak systolic pressure gradient was reduced from 42±17 mmHg to 6.2±6 mmHg after balloon angioplasty (p<0.001) [n=80, 56 (70%) native, 24 (30%) recoarctation]. There was no difference between groups for early success. None of them did require immediate surgery. There were ventricular septal defect in 23 (28.7%), bicuspid aorta in 18 (22.5%), patent ductus arteriosus in 11 (13.7%) patients. Two patients had Turner's syndrome. Mean follow-up period was 74±56 months. While recoarctation developed in 20 (25%), [12 (60%) in Group A, 5 (25%) in Group B and 3 (15%) in group C, incidence was higher in the 0-3 months age group (p=0.018). Femoral artery occlusion and aneurysm were developed in 6 (7.5%) and 4 (5%) patients, respectively, and all of them were under 1-year-old.
  
  
  CONCLUSIONS
  Balloon angioplasty can be used a method in treatment of native aortic coarctation and postoperative restenosis. Especially, children under 3 months should be monitored closely after the procedure for recoarctation, aneurysms and peripheral artery problems.
authors.affiliation: İstanbul Üniversitesi, İstanbul Tıp Fakültesi, Çocuk Kardiyolojisi Bilim Dalı, İstanbul, Türkiye. yakupergul77@hotmail.com
authors.forename: Yakup
authors.initials: Y
authors.lastname: Ergül
authors.forename: Kemal
authors.initials: K
authors.lastname: Nişli
authors.forename: Aygün
authors.initials: A
authors.lastname: Dindar
authors.forename: Rukiye
authors.initials: R
authors.lastname: Eker Ömeroğlu
authors.forename: Umrah
authors.initials: U
authors.lastname: Aydoğan
mesh_terms: D000367:Age Factors; D000800:Angioplasty, Balloon; D001017:Aortic Coarctation / Q000401:mortality* / Q000628:therapy*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D012189:Retrospective Studies; D016896:Treatment Outcome; D014421:Turkey / Q000453:epidemiology