title: Recurrence rate of different techniques for repair of coarctation of aorta: A 10 years experience.
abstract: OBJECTIVE
  The main goal of this study was to assess the frequency of recurrent coarctation after repair using different surgical methods.
  
  
  METHODS
  Surgical results of repairs for coarctation of aorta (Co-A) in 188 patients under the age 14 years who were treated in Rajaee Heart Center, Tehran, Iran, were evaluated retrospectively. The most common methods included patch-graft aortoplasty (59%), resection with end-to-end anastomosis (20.7%) and subclavian flap aortoplasty (SCFA) (16.5%). The remaining patients underwent bypass tube graft and excision with placement of a tube graft. Seventy eight percent had discrete stenosis while 22% had long segment narrowing. The patients were followed for 81.6±32.8 months.
  
  
  RESULTS
  The overall mortality rate was 2.6%. The highest incidence rate of recoarctation was found in the patch-graft aortoplasty group (12.7%) and the lowest was found in SCFA (3.2%). The incidence of recoarctation in long-segment lesions was significantly higher than that in the discrete ones (30% vs. 4%, P<0.001). In patients <1 year, the incidence of recoarctation was lower than that in the other age groups.
  
  
  CONCLUSIONS
  The patch-graft aortoplasty technique had the highest incidence of recoarctation and SCFA had the lowest rate. Long-segment Co-A had a higher chance of recoarctation. In contrast to some previous reports, the incidence of recoarctation was not higher in the age below 1 year.
authors.affiliation: Department of Cardiovascular Surgery, Rajaee Heart Center, Iran University of Medical Sciences and Health Services, Tehran, Iran.
authors.forename: Maziar Gholampour
authors.initials: MG
authors.lastname: Dehaki
authors.forename: Alireza Alizadeh
authors.initials: AA
authors.lastname: Ghavidel
authors.forename: Nader
authors.initials: N
authors.lastname: Givtaj
authors.forename: Gholamreza
authors.initials: G
authors.lastname: Omrani
authors.forename: Shahyad
authors.initials: S
authors.lastname: Salehi