Significant left main coronary artery disease from iatrogenic dissection during coronary angiography

Area of Science:

• Cardiology
• Interventional Cardiology
• Medical Imaging

Background:

• Obstructive left main coronary artery (LMCA) disease is typically caused by atherosclerosis.
• Coronary angiography, while diagnostic, carries a risk of iatrogenic complications.
• Catheter-induced dissection is a rare but serious complication during coronary angiography.

Observation:

• A 77-year-old male presented with severe LMCA stenosis.
• The stenosis was identified as a catheter-induced dissection, initially undetected.
• The dissection originated from injury by a diagnostic left Judkin's catheter during a prior coronary angiography.

Findings:

• The iatrogenic LMCA dissection was diagnosed 9 months after the initial angiography.
• The neglected dissection progressed over time, leading to severe stenosis.
• Successful treatment was achieved using two drug-eluting stents with a "crushing" technique.

Implications:

• Highlights the importance of meticulous review of coronary angiograms to detect subtle iatrogenic injuries.
• Emphasizes that delayed diagnosis of LMCA dissection can lead to significant stenosis.
• Demonstrates the efficacy of drug-eluting stents and the crushing technique for managing complex LMCA dissections.