Spontaneous coronary artery dissection
Daniele Giacoppo1, Davide Capodanno2, George Dangas3
1Institute of Cardiology, Ferrarotto Hospital, University of Catania, Catania, Italy.
Insights
Spontaneous coronary artery dissection (SCAD) is a rare heart condition. This review examines SCAD causes, diagnostic imaging, and controversial treatment strategies for better patient outcomes.
Area of Science:
- Cardiology
- Vascular Biology
Background:
- Spontaneous coronary artery dissection (SCAD) is an uncommon yet significant cause of acute coronary syndrome.
- Its etiology is not fully understood, with traditional risk factors like atherosclerosis playing a limited role in many cases.
- Clinical presentation is heterogeneous, complicating timely diagnosis and management.
Purpose of the Study:
- To review current literature on the potential causes of SCAD.
- To evaluate the role of advanced imaging techniques in SCAD diagnosis.
- To discuss the controversial therapeutic strategies for SCAD.
Main Methods:
- Comprehensive review of published data on SCAD.
- Analysis of studies utilizing intravascular ultrasound (IVUS) and optical coherence tomography (OCT).
- Examination of clinical scenarios and treatment outcomes.
Main Results:
- SCAD etiology remains multifactorial, with established causes explaining only a subset of cases.
- Endovascular imaging (IVUS, OCT) significantly improves diagnostic accuracy compared to angiography.
- Optimal treatment strategies for SCAD are still debated and lack definitive consensus.
Conclusions:
- SCAD requires further research to elucidate its pathophysiology.
- Advanced imaging is crucial for accurate SCAD diagnosis.
- Evidence-based treatment guidelines are needed to optimize SCAD management.
Abstract:
Spontaneous coronary artery dissection (SCAD) is a relatively rare and unexplored type of coronary disease. Although atherosclerosis, hormonal changes during pregnancy and connective tissue disorders might represent a sufficiently convincing explanation for some patients with SCAD, the many remaining cases display only a weak relationship with these causes. While on one side the clinical heterogeneity of SCAD masks a full understanding of their underlying pathophysiologic process, on the other side paucity of data and misleading presentations hamper the quick diagnosis and optimal management of this condition. A definite diagnosis of SCAD can be significantly facilitated by endovascular imaging techniques. In fact, intravascular ultrasound (IVUS) and optical coherence tomography (OCT) overcome the limitations of coronary angiography providing detailed endovascular morphologic information. In contrast, optimal treatment strategies for SCAD still represent a burning controversial question. Herein, we review the published data examining possible causes and investigating the best therapy for SCAD in different clinical scenarios.
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