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Coronary neovascularity: a possible sign of new and growing mural thrombus
T Nakamura1, O Yamanaka, Y Fujiwara
1Department of Cardiology, International Goodwill Hospital, Yokohama, Japan.
Insights
A case report details a coronary artery fistula forming within a left ventricular aneurysm mural thrombus. This acquired neovascularity, appearing as a "smokelike" vessel, resolved over ten years as the thrombus decreased.
Area of Science:
- Cardiology
- Vascular Biology
- Medical Imaging
Background:
- Coronary artery fistulas are abnormal connections between a coronary artery and another heart chamber or vessel.
- Left ventricular aneurysms can develop after myocardial infarction and may be associated with mural thrombi.
- The development of neovascularity within thrombi is an area of ongoing research.
Observation:
- A case report describes a coronary artery fistula originating from the anterior descending artery.
- The fistula appeared to form within a mural thrombus on a left ventricular aneurysm.
- Serial coronary arteriography revealed a "smokelike" vessel that gradually disappeared over 10 years.
Findings:
- The "smokelike" vessel observed on arteriography is hypothesized to be acquired neovascularity.
- The resolution of this abnormal vessel correlated with a decrease in the size of the mural thrombus.
- This suggests a potential link between thrombus formation and the development of new blood vessels.
Implications:
- This case suggests that coronary artery fistulas can be acquired and potentially transient, linked to mural thrombus formation.
- Understanding the mechanisms of acquired neovascularity in cardiac thrombi may offer new insights into cardiovascular disease.
- Further research is warranted to explore the potential for therapeutic interventions targeting thrombus-associated neovascularization.
Abstract:
This is a case report of a coronary artery fistula through a mural thrombus on a left ventricular aneurysm into the left ventricle. Serial coronary arteriography disclosed a vessel exhibiting a "smokelike" appearance originating at the anterior descending artery. This abnormal finding faded away over a period of 10 years with a decrease in size of the mural thrombus. This finding strongly suggests that the abnormal vessel represents an acquired neovascularity related to a newly developed thrombus.