Early stent thrombosis because of stent dislodgement in a coronary artery aneurysm

Area of Science:

• Cardiology
• Interventional Cardiology
• Medical Case Reports

Background:

• Stent thrombosis is a severe complication following coronary stenting, often leading to acute myocardial infarction or death.
• Mechanical factors like stent underexpansion and vessel dissection are known risks.
• Early identification and management of risk factors are crucial in interventional cardiology.

Observation:

• This case report details an instance of early stent thrombosis.
• The thrombosis was linked to the dislodgement of a bare metal stent.
• The dislodgement occurred due to the dissolution of a mural thrombus within a previously unrecognized coronary artery aneurysm.

Findings:

• A rare cause of early stent thrombosis was identified: bare metal stent dislodgement.
• The underlying mechanism involved the dissolution of a mural thrombus.
• An unappreciated coronary artery aneurysm was the anatomical substrate for the thrombus and subsequent dislodgement.

Implications:

• This case underscores the importance of considering anatomical variations like coronary artery aneurysms in patients presenting with stent thrombosis.
• It highlights a unique mechanism of stent failure beyond typical mechanical issues.
• Further investigation into the management of coronary artery aneurysms in stented segments may be warranted.