Friedreich's ataxia as a cause of premature coronary artery disease
Gregory R Giugliano1, Prabhdeep S Sethi
1Division of Cardiology, Baystate Medical Center, Springfield, Massachusetts 01199, USA. gregory.giugliano@bhs.org
Insights
Friedreich's ataxia patients may have underdiagnosed coronary artery disease. This case highlights the need for thorough cardiac evaluation in patients with Friedreich's ataxia experiencing angina symptoms.
Area of Science:
- Cardiology
- Neurology
- Genetics
Background:
- Friedreich's ataxia (FA) is a common hereditary neurodegenerative disorder.
- Cardiomyopathy is prevalent in FA patients, affecting over 50%.
- Angina symptoms are reported in FA, but coronary artery disease (CAD) is often overlooked.
Observation:
- A 35-year-old woman with FA presented with chest pressure, dyspnea, and diaphoresis.
- Cardiac catheterization revealed a chronically occluded left circumflex artery and severe stenosis in the left anterior descending artery.
- A stent was successfully placed in the left anterior descending artery, resolving the stenosis.
Findings:
- This case demonstrates angiographically proven, premature obstructive coronary artery disease in an FA patient.
- Coronary artery disease is likely underdiagnosed in the Friedreich's ataxia population.
- Anginal symptoms warrant comprehensive investigation in FA patients.
Implications:
- Early diagnosis of CAD in FA patients is crucial for timely intervention.
- Aggressive management of CAD may delay the progression of end-stage cardiomyopathy.
- This case underscores the importance of considering CAD in the differential diagnosis of cardiac symptoms in FA.
Abstract:
Friedreich's ataxia is the most common hereditary neurodegenerative disorder, and more than half of all patients show echocardiographic evidence of cardiomyopathy. Although angina has been reported in these patients, the role of coronary artery disease has previously been dismissed and is therefore underestimated. Premature obstructive coronary disease has rarely been angiographically demonstrated in patients with Friedreich's ataxia. We present an unusual case of a 35-year-old woman with Friedreich's ataxia who presented with intermittent chest pressure associated with dyspnea and diaphoresis. Cardiac catheterization revealed a chronically occluded left circumflex coronary artery and a high-grade stenosis of the left anterior descending coronary artery. A Cypher stent, placed within the left anterior descending artery, left no residual stenosis. This case illustrates the importance of fully investigating anginal symptoms in patients with Friedreich's ataxia, because coronary artery disease is likely underdiagnosed in this population. Early diagnosis may permit aggressive management and may delay the progression to end-stage cardiomyopathy.
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