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Recurrent spontaneous coronary artery dissection
Susan N Kok1, Marysia S Tweet2
1Division of General Internal Medicine, Department of Medicine, Mayo Clinic College of Medicine and Science, Rochester, MN, USA.
Insights
Spontaneous coronary artery dissection (SCAD) can recur in 5-29% of patients, posing significant cardiac risks. Further research is needed to identify risk factors and effective interventions for SCAD recurrence.
Area of Science:
- Cardiology
- Vascular Medicine
Background:
- Spontaneous coronary artery dissection (SCAD) is a non-atherosclerotic cause of acute coronary syndrome and sudden cardiac death, primarily affecting young to middle-aged women.
- SCAD presents acute challenges including arrhythmias, heart failure, and chest pain, with a notable recurrence rate of 5-29%.
Purpose of the Study:
- To provide an updated review of Spontaneous Coronary Artery Dissection (SCAD), with a specific focus on the risk factors and implications of SCAD recurrence.
- To summarize current knowledge on SCAD-associated conditions, genetic factors, clinical characteristics, and post-SCAD care.
Main Methods:
- A comprehensive literature search of PubMed articles was conducted up to October 2020.
- The review focused on clinical studies and original research, scrutinizing findings related to SCAD recurrence.
Main Results:
- SCAD recurrence represents a significant cardiac risk and psychological burden for patients.
- Hypertension and severe coronary tortuosity are potential risk factors associated with SCAD recurrence.
Conclusions:
- SCAD recurrence is a concerning risk that requires further investigation.
- Additional research is essential to fully understand SCAD recurrence risk factors and to clarify the efficacy of interventions like beta-blocker therapy in reducing recurrence.
Abstract:
Introduction: Spontaneous coronary artery dissection (SCAD) is a cause of non-atherosclerotic acute coronary syndrome and sudden cardiac death that predominantly impacts young and middle-aged women. In addition to the challenges of acute SCAD including arrhythmias, heart failure, and recurrent chest pain, de novo recurrent SCAD occurs in 5-29% of patients. Recurrent SCAD presents both a psychological burden and a significant cardiac risk to patients. Research regarding SCAD recurrence risk has been growing and can guide providers and patients alike.Areas covered: This review provides up-to-date information about many aspects of SCAD with a focus on SCAD recurrence. PubMed articles were reviewed through October 2020, with particular focus on clinical studies and original research. The resulting literature was scrutinized for information on SCAD recurrence. SCAD-associated conditions, genetic data, clinical characteristics, medications, and aspects of post-SCAD care are summarized.Expert Opinion: SCAD recurrence poses a concerning risk for patients with SCAD. Conditions such as hypertension and severe coronary tortuosity may be associated with recurrence. More research is needed to further elucidate risk factors for recurrence and clarify interventions, such as beta blocker therapy, that may reduce recurrence risk.
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