[Acute myocardial infarction with variable clinical manifestations: probable catastrophic primary antiphospholipid
Hirokuni Etsuda1, Akira Miyamoto, Yutaka Nakajima
1Cardiac Division, Kawasaki Saiwai Hospital, Kawasaki. junkanki@kmh.or.jp
Insights
Catastrophic antiphospholipid antibody syndrome (APS) can present with acute myocardial infarction, a rare initial symptom. This case highlights the importance of considering APS in patients with multiple organ involvement and thrombotic events.
Area of Science:
- Cardiology
- Rheumatology
- Immunology
Background:
- Acute myocardial infarction (AMI) is a leading cause of cardiovascular mortality.
- Antiphospholipid antibody syndrome (APS) is a prothrombotic autoimmune disorder.
- Catastrophic APS (CAPS) is a severe, life-threatening variant of APS.
Observation:
- A 62-year-old male with diabetes presented with AMI.
- Coronary angiography revealed multiple thromboembolic occlusions.
- The patient developed multi-organ dysfunction (gastrointestinal, neurological, renal, respiratory) within two weeks.
- Elevated anticardiolipin beta2GP1 complex antibody titers were detected.
Findings:
- The clinical presentation and laboratory results were consistent with catastrophic antiphospholipid antibody syndrome (CAPS).
- Acute myocardial infarction is an uncommon initial manifestation of CAPS.
- The patient required prolonged hospitalization, anticoagulant therapy, and hemodialysis.
Implications:
- This case underscores the need for early recognition of CAPS, even with atypical initial symptoms like AMI.
- Prompt diagnosis and management of CAPS are crucial to prevent multi-organ failure and improve patient outcomes.
- Further research into the pathogenesis and treatment of CAPS is warranted.
Abstract:
A 62-year-old diabetic man was admitted to our hospital because of acute myocardial infarction. Emergent coronary angiography showed multiple thromboembolic occlusions in the distal circumflex and anterior descending arteries. For the first 2 weeks of hospitalization, he suffered multiple organ manifestations including the gastrointestinal, central nervous, renal and respiratory systems. The anticardiolipin beta2GP1 complex antibody titer on the 15th day was as high as 27.2 U/l (normal value < 3.5). These clinical manifestations and laboratory findings suggested catastrophic antiphospholipid antibody syndrome. He was discharged on the 83rd day with anticoagulant therapy and regular hemodialysis. Acute myocardial infarction is rare as the initial manifestation of catastrophic antiphospholipid antibody syndrome.
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