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Blalock-Taussig Shunt versus Ductal Stent in the Palliation of Duct Dependent Pulmonary Circulation; A Systematic

Antoine Fakhry AbdelMassih1, Rahma Menshawey2, Esraa Menshawey2

  • 1Pediatric Cardiology unit, Pediatrics' Department, Faculty of Medicine, Cairo University, Egypt.

Current Problems in Cardiology
|June 27, 2021
PubMed

Insights

Patent Ductus Arteriosus (PDA) stenting is a safer alternative to Blalock-Taussig (BT) shunts for infants needing palliative care. PDA stenting reduces mortality, complications, and ECMO use, improving patient outcomes.

Area of Science:

  • Pediatric Cardiology
  • Interventional Cardiology
  • Neonatal Surgery

Background:

  • Infants with ductal-dependent pulmonary blood flow require palliative procedures to establish circulation.
  • Blalock-Taussig (BT) shunts and Patent Ductus Arteriosus (PDA) stents are common palliative interventions.

Purpose of the Study:

  • To systematically review and meta-analyze studies comparing PDA stents and BT shunts.
  • To evaluate the comparative efficacy and safety of these two palliative procedures.

Main Methods:

  • Systematic review and meta-analysis conducted according to PRISMA guidelines.
  • Comparative analysis of outcomes including mortality, complications, ECMO use, oxygen saturation, and Nakata index.

Main Results:

  • PDA stenting group showed significantly reduced risk of mortality (RR=0.585, P=0.006) and complications (RR=0.523, P=0.011).
  • Reduced risk of ECMO use (RR=0.267, P=0.008) and higher post-procedure oxygen saturation (SMD=1.307, P<0.001) were observed in the PDA stent group.
  • Improved Nakata index (SMD=0.679, P<0.001) in the PDA stent group indicates better pulmonary artery development.

Conclusions:

  • PDA stenting is a viable and safer alternative to the BT shunt procedure for palliation in infants with ductal-dependent pulmonary blood flow.
  • PDA stenting offers better post-procedure stability and improved clinical outcomes compared to BT shunts.

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