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[Disseminated intravascular coagulation and chronic aortic dissection]
P Disdier1, J R Harle, M F Aillaud
1Service de Médecine Interne, Groupe hospitalier de la Timone, Marseille.
Insights
Chronic aortic dissection, a rare complication of aorto-coronary bypass surgery, can manifest years later with severe bleeding due to coagulation disorders and thrombocytopenia.
Area of Science:
- Cardiovascular Surgery
- Hematology
- Vascular Medicine
Background:
- Aortic dissection is a serious condition often associated with cardiovascular procedures.
- Disseminated intravascular coagulation (DIC) is a life-threatening condition affecting blood clotting.
Observation:
- A patient presented with bleeding 4 years post-aorto-coronary bypass surgery.
- The initial aortic trauma occurred during aortic unclamping for the bypass procedure.
Findings:
- Chronic aortic dissection was diagnosed during the evaluation for disseminated intravascular coagulation.
- The patient exhibited severe coagulation abnormalities, profound thrombocytopenia, and impaired platelet aggregation.
Implications:
- This case highlights a delayed presentation of aortic dissection as a cause of DIC.
- Understanding this association is crucial for managing complex post-surgical bleeding complications.
- Further research into the mechanisms linking aortic trauma and chronic coagulation defects is warranted.
Abstract:
The authors report a case of chronic dissection of the aorta discovered during the evaluation of disseminated intravascular coagulation. The first signs of bleeding occurred 4 years after the initial aortic trauma at the time of unclamping of the aorta during an aorto-coronary bypass. This case was characterised by the severity of coagulation abnormalities, the severe thrombocytopenia and that of platelet aggregation events.