scholarly journals A Rare Case of Acute Myocardial Infarction due to Coronary Artery Dissection and Heparin-Induced Thrombocytopenia

2012 ◽  
Vol 2012 ◽  
pp. 1-4
Author(s):  
Michael G. Fradley ◽  
Douglas E. Drachman
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Coronary Artery ◽  
Motor Vehicle ◽  
Motor Vehicle Accident ◽  
Thrombin Inhibitor ◽  
Artery Dissection ◽  
Coronary Artery Dissection ◽  
Heparin Induced Thrombocytopenia ◽  
The Right

Although both coronary artery dissection and heparin-induced thrombocytopenia may provoke myocardial infarction, it is extremely rare for both conditions to develop simultaneously in a single patient. We report a case of a 69-year-old woman who sustained a head-on motor vehicle accident with associated chest trauma. During a subsequent hospitalization, she was exposed to subcutaneous heparin and developed significant thrombocytopenia. Shortly thereafter, she re-presented with an acute myocardial infarction. Coronary angiography revealed a spiral dissection with superimposed thrombosis within the right coronary artery, while laboratory testing confirmed the diagnosis of heparin induced thrombocytopenia. She was treated with catheter-based thrombectomy and adjunctive direct thrombin inhibitor therapy, followed by three months of systemic anticoagulation with warfarin. To our knowledge, this represents the first published case of a native vessel myocardial infarction due to the combination of coronary artery dissection and heparin-induced thrombocytopenia.

Recognition of acute myocardial infarction caused by spontaneous coronary artery dissection of first septal perforator

2021 ◽  
Author(s):  
Scott W Sharkey ◽  
Mesfer Alfadhel ◽  
Christina Thaler ◽  
David Lin ◽  
Meagan Nowariak ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Coronary Artery ◽  
Invasive Coronary Angiography ◽  
Acute Chest Pain ◽  
Vancouver General Hospital ◽  
Artery Dissection ◽  
Spontaneous Coronary Artery Dissection ◽  
Coronary Artery Dissection ◽  
Septal Perforator

Abstract Aims  Spontaneous coronary artery dissection (SCAD) diagnosis is challenging as angiographic findings are often subtle and differ from coronary atherosclerosis. Herein, we describe characteristics of patients with acute myocardial infarction (MI) caused by first septal perforator (S1) SCAD. Methods and results  Patients were gathered from SCAD registries at Minneapolis Heart Institute and Vancouver General Hospital. First septal perforator SCAD prevalence was 11 of 1490 (0.7%). Among 11 patients, age range was 38–64 years, 9 (82%) were female. Each presented with acute chest pain, troponin elevation, and non-ST-elevation MI diagnosis. Initial electrocardiogram demonstrated ischaemia in 5 (45%); septal wall motion abnormality was present in 4 (36%). Angiographic type 2 SCAD was present in 7 (64%) patients with S1 TIMI 3 flow in 7 (64%) and TIMI 0 flow in 2 (18%). Initial angiographic interpretation failed to recognize S1-SCAD in 6 (55%) patients (no culprit, n = 5, septal embolism, n = 1). First septal perforator SCAD diagnosis was established by review of initial coronary angiogram consequent to cardiovascular magnetic resonance (CMR) demonstrating focal septal late gadolinium enhancement with corresponding oedema (n = 3), occurrence of subsequent SCAD event (n = 2), or second angiogram showing healed S1-SCAD (n = 1). Patients were treated conservatively, each with ejection fraction >50%. Conclusion  First septal perforator SCAD events may be overlooked at initial angiography and mis-diagnosed as ‘no culprit’ MI. First septal perforator SCAD prevalence is likely greater than reported herein and dependent on local expertise and availability of CMR imaging. Spontaneous coronary artery dissection events may occur in intra-myocardial coronary arteries, approaching the resolution limits of invasive coronary angiography.

scholarly journals Spontaneous Coronary Artery Dissection – A Case Report

2018 ◽  
Vol 12 (2) ◽  
pp. 105-107
Author(s):  
Samsun Nahar ◽  
Fatema Begum ◽  
Momenuzzaman ◽  
KN Khan
Keyword(s):  
Myocardial Infarction ◽  
Case Report ◽  
Chest Pain ◽  
Coronary Artery ◽  
Artery Dissection ◽  
Spontaneous Coronary Artery Dissection ◽  
Coronary Artery Dissection ◽  
St Elevation ◽  
The Right ◽  
Spontaneous Dissection

Spontaneous coronary artery dissection is a rather rare cause of myocardial infarction, chest pain, and sudden death.There are currently no known direct causes of this condition.Most of the reported dissections have occurred in the left anterior descending coronary artery.Herein, we report the case of a 58-year-old woman who presented at our institution with an acute ST-elevation myocardial infarction secondary to a spontaneous dissection of the right coronary artery. Primary PCIresolved the occlusion of the artery, and the patient was discharged from the hospital on medical therapy.University Heart Journal Vol. 12, No. 2, July 2016; 105-107

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