Comparative Outcomes of Primary Arterial Switch Operation for Transposition of Great Arteries within the First Month of Life

  • Hamid Bigdelian Mail Department of Cardiovascular Surgery, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
  • Mohsen Sedighi Department of Cardiovascular surgery, Chamran Heart Center, Isfahan University of Medical Sciences, Isfahan, Iran.
Heart defects; congenital, Transposition of great vessels, Thoracic surgery


Background: The optimal surgical plan to correct the simple transposition of the great arteries (TGA) is the arterial switch operation (ASO). This study aimed to assess the outcomes of ASO in infants with simple TGA with a special focus on the time of surgery.

Methods: This retrospective study enrolled 105 infants with simple TGA who underwent ASO and categorized them into 3 groups based on the time of repair: first week of life: Group A; second week of life: Group B; and third week of life: Group C. The endpoints, comprised of an assessment of pre- and postoperative outcomes, complications, and survival, were compared between the groups.

Results: The mean age of the infants was 10.50±6.26 days, and 61 (58.1%) cases were male. The mean number of days on dopamine was 1.85±0.12 in Group A, 2.48±0.03 in Group B, and 2.67±0.08 in Group C (P<0.001). The mean number of days on epinephrine was 1.25±0.07 in Group B and 1.27±0.08 in Group C (P<0.001). The mean number of days on the ventilator was 3.52±0.20 in Group A, 4.56±0.24 in Group B, and 5.06±0.21 in Group C (P<0.001). The mean number of days of ICU stay was 6.69±0.21 in Group A, 8.46±0.57 in Group B, and 9.70±0.64 in Group C (P<0.001). The infants in Group A had a greater survival rate (97.0%) than those in Group B (94.1%) and Group C (78.4%) (P=0.042).

Conclusion: ASO in infants with simple TGA can be done within the first week of life with satisfactory outcomes and survival.


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How to Cite
Bigdelian H, Sedighi M. Comparative Outcomes of Primary Arterial Switch Operation for Transposition of Great Arteries within the First Month of Life. J Tehran Heart Cent. 15(1):1-5.
Original Article(s)