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Asymptomatic left ventricular noncompaction--implications for athletic participation
Michael E Pitzer1, Peter H Seidenberg, Matthew Silvis
11Family Medicine, Virginia Commonwealth University, Richmond, VA; 2Penn State University Primary Care Sports Medicine Fellowship - State College, Orthopaedics and Rehabilitation, Family and Community Medicine, Penn State College of Medicine, Penn State University, State College, PA; and 3Penn State Primary Care Sports Medicine Fellowship, Departments of Family and Community Medicine and Orthopedics and Rehabilitation, Penn State Milton S. Hershey Medical Center, Hershey, PA.
Insights
Left ventricular noncompaction (LVNC) is a rare heart muscle condition. Research is needed to understand disease progression and outcomes in asymptomatic adults with LVNC.
Area of Science:
- Cardiology
- Cardiovascular Research
- Myocardial Diseases
Background:
- Left ventricular noncompaction (LVNC) is a rare cardiomyopathy characterized by abnormal left ventricular myocardial development.
- Current understanding of LVNC primarily comes from symptomatic patients at referral centers, limiting knowledge of its natural history.
- The progression and outcomes of incidentally discovered, asymptomatic LVNC in adults remain largely uncharacterized.
Observation:
- Limited data exists on the long-term prognosis of individuals with asymptomatic left ventricular noncompaction.
- There are no evidence-based guidelines for clinical surveillance or therapeutic interventions in this patient group.
- The impact of LVNC on athletic eligibility is not well-defined, particularly in low-risk individuals.
Findings:
- Disease progression and clinical outcomes for adult patients with incidentally found, asymptomatic LVNC are not established.
- The lack of data prevents the development of evidence-based recommendations for follow-up and treatment.
- Insufficient evidence currently supports restricting athletic participation in asymptomatic, low-risk individuals with LVNC.
Implications:
- Further research is crucial to define the natural history and risk stratification of asymptomatic LVNC.
- Establishing follow-up protocols and intervention criteria for asymptomatic LVNC is a clinical priority.
- Clarifying the safety of athletic participation for low-risk individuals with LVNC requires more investigation.
Abstract:
Left ventricular noncompaction (LVNC) is a poorly understood and much debated morphological abnormality of the left ventricular myocardium. Much of what is known about this cardiomyopathy derives from large referral centers in patients presenting with significant symptoms and advanced disease. Disease progression and outcomes for adult patients with incidentally found and asymptomatic LVNC have not been established yet. As such, there are currently no evidence-based recommendations on clinical follow-up or interventions. Since LVNC's effect on athletic participation is unknown, there is insufficient evidence to support limiting athletic participation in low-risk individuals.
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