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Updated: Sep 14, 2026
Vascular Balloon Injury and Intraluminal Administration in Rat Carotid Artery
Published on: December 23, 2014
[Significance of intramural vascular injuries in myocardial revascularization. A case report]
P A Jorge1, K Metze, E A Nogueira
1Faculdade de Ciências Médicas-UNICAMP.
Insights
A patient died after coronary bypass surgery due to cardiogenic shock. Autopsy revealed microarteriopathy, suggesting it may have impaired heart reperfusion and function.
Area of Science:
- Cardiovascular Medicine
- Pathology
- Surgical Outcomes
Background:
- Coronary artery bypass grafting (CABG) is a common surgical intervention for ischemic heart disease.
- Patient presented with angina pectoris and hypertension, necessitating CABG.
- Post-operative mortality remains a concern, with cardiogenic shock being a critical complication.
Observation:
- A 59-year-old female patient experienced fatal cardiogenic shock 24 hours post-CABG.
- Autopsy identified a recent postero-lateral myocardial infarction.
- Venous bypass grafts appeared unremarkable.
Findings:
- Histological examination revealed extensive microarteriopathy in 73% of vessels >150 micrometers.
- The microarteriopathy was characterized by intimal fibro-elastosis and medial hyperplasia.
- This diffuse vascular disease was noted in vessels beyond the primary surgical targets.
Implications:
- The identified microarteriopathy may have compromised myocardial reperfusion following surgery.
- This vascular pathology could have contributed to the patient's post-operative mechanical cardiac dysfunction.
- Understanding microvascular disease is crucial for improving CABG outcomes in select patient populations.
Abstract:
The authors report the case of 59 year-old hypertensive woman, suffering from angina pectoris, who died 24 hours after coronary by pass surgery due to cardiogenic shock. Autopsy revealed a small recent postero-lateral infarction. The venous by pass, however, were inconspicuous. Histologic examination showed extensive microarteriopathy with stenosing intimal fibro-elastosis and hyperplasia of the media, affecting 73% of the vessels with a diameter greater than 150 micra. The authors believe that the diffuse microangiopathy could have affected the myocardial reperfusion, and participated of the mechanical dysfunction.
