Intramural Hematoma Burrowing Behind a Coronary Stent: Optical Coherence Tomography Findings

Area of Science:

• Cardiovascular medicine
• Interventional cardiology
• Medical imaging

Background:

• Percutaneous coronary intervention (PCI) is a common procedure for treating coronary artery disease.
• Complications during or after PCI can arise, necessitating accurate diagnosis and management.
• Intramural hematoma (IMH) is a recognized, albeit less common, complication of PCI.

Observation:

• A 47-year-old patient experienced abrupt vessel closure post-PCI in the left circumflex artery.
• Intracoronary imaging was performed to investigate the cause of vessel closure.
• Optical coherence tomography (OCT) provided detailed visualization of the coronary anatomy.

Findings:

• OCT imaging identified a large intramural hematoma (IMH) in the segment between two treated lesions.
• The IMH extended distally, compressing the vessel lumen.
• Cross-sectional, longitudinal, and stent-rendered OCT images clearly depicted the IMH morphology.

Implications:

• Accurate diagnosis of IMH using OCT is crucial for appropriate management.
• Understanding OCT findings of IMH can help interventional cardiologists identify and treat this complication.
• This case highlights the utility of OCT in evaluating complex PCI-related events.