A five-year clinical experience with 112 Blalock-Taussig shunts

Area of Science:

• Pediatric Cardiology
• Congenital Heart Disease Surgery

Background:

• Neonatal open repair for complex cyanotic heart disease has advanced, but some infants still require palliative shunts.
• The systemic-to-pulmonary artery shunt is a critical intervention for managing pulmonary blood flow in specific congenital heart conditions.

Purpose of the Study:

• To evaluate the 5-year experience with 112 Blalock-Taussig shunts in neonates with complex cyanotic heart disease.
• To compare outcomes between classic Blalock-Taussig shunts and those using PTFE grafts.

Main Methods:

• A retrospective review of 112 Blalock-Taussig shunt procedures performed between 1985 and 1990.
• Categorization of shunts into classic (Group I) and PTFE graft (Group II) for comparative analysis.
• Review of technical aspects and patient outcomes, including mortality, complications, and need for reintervention.

Main Results:

• Three early deaths occurred, none attributed to shunt function. No early shunt insufficiency, bleeding, infection, limb ischemia, or pulmonary artery distortion was observed.
• 21% incidence of clinical congestive heart failure, slightly higher in Group I.
• Overall need for reshunting/open repair was similar between groups, but Group I had a longer interval to the second procedure (21.6 vs 12.4 months).

Conclusions:

• The Blalock-Taussig shunt is a safe and reliable palliative option for increasing pulmonary flow in neonates with complex cyanotic heart disease.
• Both classic and PTFE graft shunts demonstrated acceptable early outcomes, with a trend towards longer durability for classic shunts.