Aortic cannula tip dislodgement: A rare complication

Area of Science:

• Cardiovascular Surgery
• Medical Device Safety
• Patient Safety

Background:

• Cardiopulmonary bypass (CPB) circuits in cardiac surgery involve complex tubing and cannulae connected to major vessels.
• Effective CPB requires both surgical skill and vigilance regarding the integrity of disposable circuit components.
• Potential manufacturing defects in CPB disposables can be overlooked during technically demanding procedures.

Observation:

• During aortic decannulation in a mitral valve replacement, a metallic tip detached from a component of the CPB circuit.
• The dislodged metallic tip migrated into the abdominal aorta, posing a significant risk.

Findings:

• This case highlights a rare but serious complication arising from a manufacturing defect in a CPB disposable.
• The incident occurred unexpectedly during the aortic decannulation phase of the procedure.

Implications:

• Systematic pre-operative checks of all cardiopulmonary bypass circuit components by anesthesiologists and perfusionists are crucial.
• Implementing thorough prechecks can mitigate the risk of unforeseen complications related to device defects.
• Enhanced vigilance in inspecting CPB equipment is essential for improving patient safety in cardiac surgery.