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Published on: May 28, 2019
Coronary stenting in an elderly patient with an acute myocardial infarction at left main trunk
Keita Sakurai1, Takeshi Suzuki, Ai Nakazawa
1Division of Cardiology, Toyokawa City Hospital, Toyokawa, Japan.
Insights
A rare case of acute myocardial infarction (AMI) in the left main trunk (LMT) was successfully treated in an elderly patient. Prompt stenting of the calcified LMT lesion led to a positive outcome and recovery.
Area of Science:
- Cardiology
- Interventional Cardiology
- Geriatric Cardiology
Background:
- Acute myocardial infarction (AMI) due to left main trunk (LMT) occlusion is uncommon and carries a poor prognosis, especially in the elderly.
- Rapid reperfusion is critical for survival in LMT-AMI cases.
- This report details a unique survival case in a nonagenarian patient.
Observation:
- A 91-year-old male presented with cardiogenic shock and AMI.
- Left ventriculography revealed severely reduced ejection fraction (30.8%) with anterolateral and apical akinesis.
- Coronary angiography identified a critical 90% stenosis at the LMT ostium, confirmed by intravascular ultrasound as circumferential calcification.
Findings:
- Successful percutaneous coronary intervention (PCI) was performed using stenting to dilate the severely calcified LMT lesion.
- The patient experienced a favorable recovery, was discharged within a month, and remained asymptomatic at 6-month follow-up.
Implications:
- This case highlights the feasibility and effectiveness of timely stenting for LMT-AMI, even in elderly patients with extensive calcification.
- Aggressive revascularization strategies can significantly improve outcomes in high-risk AMI patients.
- Successful PCI in LMT-AMI can lead to long-term survival and improved quality of life in geriatric populations.
Abstract:
Acute myocardial infarction (AMI) caused by an occlusion of the left main trunk (LMT) is a rare angiographic finding. The prognosis is usually extremely poor, particularly in an elderly patient, unless complete reperfusion is rapidly established. We experienced a survival case of an elderly man with AMI at the LMT. A 91-year-old man with cardiogenic shock was referred to our hospital for the treatment of AMI. Left ventriculograms showed that akinesis in the anterolateral and apical wall segments had resulted in an ejection fraction of 30.8%. Coronary angiograms revealed a 90% narrowing at the ostium of the LMT. Intravascular ultrasound images showed a circumferential calcification at the site of the minimum lumen diameter of the LMT. We successfully dilated this calcified narrowing using a coronary stent, and the patient was discharged without complications 1 month later. The patient was asymptomatic 6 months later.
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