Apical Aortic Conduit Infection 27 Years After Repaired Left Ventricular Outflow Tract Obstruction

Area of Science:

• Pediatric cardiology
• Cardiovascular surgery
• Infectious diseases

Background:

• Apicoaortic conduits were an early treatment for complex left ventricular outflow tract obstruction in children.
• This technique is largely superseded by the Ross-Konno procedure, but many conduits remain.
• Long-term data on pediatric apicoaortic conduits are scarce.

Observation:

• A patient with Shone's syndrome presented with an infected apical aortic porcine-valved conduit remnant.
• The infection was noted 17 years after the conduit valve was excised due to insufficiency.
• This highlights a rare but significant long-term complication of these historical implants.

Findings:

• The case illustrates a late-onset infection in a functioning apicoaortic conduit remnant.
• This underscores the potential for delayed complications even after initial valve management.
• The patient's management involved addressing the infection in the context of a remnant conduit.

Implications:

• This case emphasizes the importance of long-term surveillance for patients with older apicoaortic conduits.
• It suggests that even remnant conduit material can be a source of late infectious complications.
• Further studies are needed to understand the natural history and management strategies for these long-term implants.