Surgical Age and Morbidity After Arterial Switch for Transposition of the Great Arteries

Research output: Contribution to journalArticle


Background: Transposition of the great arteries (TGA) is a complex congenital heart disease that requires early diagnosis as well as advanced surgical repair and postoperative support. We sought herein to study the impact of surgical timing on early postoperative morbidity.
Methods: We reviewed all patients with TGA corrected at our institution via arterial switch operation (ASO) between June 2001 and June 2016. Major postoperative morbidity (MPM) and death within 30 days after ASO were documented. Patients with double outlet right ventricle, chromosome abnormalities and non-cardiac diseases were excluded. MPM was defined as presence of at least 1 of the following: delayed sternum closure, reoperation, prolonged mechanical ventilation, noninvasive ventilation after extubation, peritoneal dialysis, ECMO and readmission.
Results: 241 patients were included, with medians for birth weight, gestational week and age at surgery of 3.5 kg, 39 weeks, and 5 days, respectively. MPM was encountered in 32.3% of patients. Prematurity (p=0.001) and need for aortic arch repair at the time of ASO (p=0.04) were associated with significant increase in MPM. Non-A coronary anatomy, associated ventricular septal defect requiring surgical closure and fetal diagnosis of TGA had no significant impact on MPM (p=0.35, 0.08 and 0.21, respectively). There was no significant difference in MPM between the surgical groups (p=0.49).
Conclusions: Early complications after ASO do occur and are mostly associated with prematurity and need for aortic arch repair. Timing of surgical repair does not seem to influence the rate of these complications.


External organisations
  • Skåne University Hospital
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Pediatrics
  • Cardiac and Cardiovascular Systems
Original languageEnglish
Pages (from-to)1242-1247
Number of pages6
JournalAnnals of Thoracic Surgery
Issue number4
Publication statusPublished - 2019
Publication categoryResearch